Consulta: subjectFacets:"Eggs"
Registros recuperados: 86
Data/hora: 02/06/2024 08:54:16

Солёностная и температурная толерантность морских копепод Acarita clausi и Acarita tonsa в эмбриональный период
Provedor de dados: 13
Autores: Губарева, Е. С.; Светличный, Л. С.
Speed of sinking to salinity and temperature gradients of the Marmara and Black Seas was calculated for eggs of Acartia clausi and A. tonsa laid in the upper layers basing on egg mass densities. The effect of gradual changing of temperature and salinity on egg hatching success of these species was studied.
Tipo: Book Section
Palavras-chave: Acartia clausi; Acartia tonsa; Eggs; Density; Hatching success; Marmara Sea; Black Sea.
Ano: 2010
URL: http://repository.ibss.org.ua/dspace/handle/99011/1848

Proposição para o manejo integrado das cigarrinhas-das-pastagens.
Provedor de dados: 14
Autores: VALERIO, J. R.; KOLLER, W. W.
Manejo de pragas em pastagens; Caracterizacao do problema, sobre a graminea forrageira, sobre o inseto; Consideracoes sobre as alternativas de controle, inseticidas quimicos, praticas culturais, resistencia de plantas aos insetos, controle biologico; Alguns resultados obtidos para fundamentar as proposicoes de manejo, efeito de diferentes cargas animal, durante o periodo seco do ano, efeito da remocao da cobertura vegetal morta acumulada ao nivel do solo em pastagens de brachiaria decumbens;Tratos culturais em pastagens de brachiaria decumbens Stapf; Selecao de gramineas resistentes as cigarrinhas das pastagens; Proposicoes para o manejo integrado das cigarrinhas das pastagens.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cigarrinha-das-pastagens; Manejo integrado; Controle; Carga animal; Queima controlada; Spittlebugs; Integrated control; Resistance; Controlled burning.; Cobertura Vegetal; Controle Biológico; Controle Químico; Gramínea; Inseticida; Gramineae; Ninfa; Pastagem; Ovo; Resistência; Queimada; Zulia Entreriana.; Grazing intensity; Eggs; Chemical control; Biological control; Insecticides; Nymphs; Pastures; Plant litter.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321470

Recherche et caractérisation d'immunoglobulines dans les oeufs du loup (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Pepin, Jean-francois; Breuil, Gilles; Rigobert, P; Romestand, Bernard.
The occurrence of maternal immunity transfer in Sea bass (Dicentrarchus labrax) was investigated using ELISA and Western blot technics. In order to determine the possible presence of immunoglobulin (Ig), egg proteins obtained from fertilized eggs were analyzed. After several extraction protocol assays (precipitation, chromatography), monoclonal and polyclonal antibody probes specific to Sea bass Ig allowed to confirm the presence of an immunoglobulin-like protein in eggs with very low level. Biochemical characterization was carried out using SDS-PAGE. Results indicated that egg Ig had a molecular weight of 206 kDa. They were smaller than seric IgM (800 kDa). The heavy (H) and light (L) chains of the egg Ig and of the seric IgM had similar molecular weight,...
Tipo: Text
Palavras-chave: Immunoglobuline; Transfert immunité maternelle; ELISA; Œuf; Poisson; Immunoglobulin; Maternal immunity transfer; ELISA; Eggs; Fish.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00272/38275/36458.pdf

Selection of finfish species for aquaculture development in Martinique (FWI).
Provedor de dados: 5
Autores: Thouard, Emmanuel; Soletchnik, Patrick; Marion, J.
Since 1981, in Martinique, a programme of selection of fishes suitable for aquaculture has been conducted. Zootechnical and socio-economical constraints have led to the choice of three species, endemic and exotic: the palometa (Trachinotus goodei ), the red drum (Sciaenops ocellata ) and the red florida hybrid (Oreochromis sp.).
Tipo: Text
Palavras-chave: Trachinotus goodei; Pisces; Brood stocks; Sea water; Fresh water; Recirculating systems; Survival; Eggs; Sexual maturity; Spawning; Environmental conditions; Tropical fish; Fingerlings; Rearing; Aquaculture development; Growth.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1492.pdf

Déterminisme du recrutement de la sole. Phase pélagique - Résultats des campagnes 1985
Provedor de dados: 5
Autores: Arbault, Suzanne; Camus, Patrick; Hersart De La Villemarque, Jacqueline; Koutsikopoulos, Constantin.
In order to analyse the recruitment process of a commercial fish, the common sole has been selected for making researches into the mecanisms which have an effect upon the distribution of the young fish stages and upon the plenty of the recruitment. In 1985, during three surveys for eggs and larvae off the estuary of the river Loire in march and april, severa! points have been studied : - physical and chemical data of the sea - distribution of eggs and larvae - vertical distribution of larvae in a little scale - some results on nutrition of larvae.
Tipo: Text
Palavras-chave: Sole; Oeufs; Larves; Recrutement; Sole; Eggs; Larvae; Recrutment.
Ano: 1986
URL: https://archimer.ifremer.fr/doc/00503/61493/65304.pdf

Influence de l'environnement trophique de l'élevage en biofloc sur les performances physiologiques de la crevette Litopenaeus stylirostris : Étude de paramètres de la nutrition, de l'immunité et de la reproduction
Provedor de dados: 5
Autores: Cardona, Emilie.
Biofloc is an intensive rearing system with zero or minimal water exchange where a diverse population of microorganisms (microalgae, zooplankton and bacteria) develops in association with organic matter to form the floc particles. These particles play the double role of biological filter and dietary supplement. This dissertation aims to better understand the process of this rearing system and its interactions with the Litopenaeus stylirostris shrimp. Two specific objectives were integrated within the framework of this general objective: (i) to measure the production gain from biofloc rearing and (ii) to study the interaction between biofloc environment and shrimp and to assess its role on production performances of shrimps. Thus, our results show...
Tipo: Text
Palavras-chave: Biofloc; Crevette; Nutrition; Stress oxydant; Défenses antioxydantes; Immunité; Reproduction; Oeufs; Larves; Bactéries; Microbiote; Biofloc; Shrimp; Nutrition; Oxidative stress; Antioxidant defences; Immunity; Reproduction; Eggs; Larvae; Bacteria; Microbiota.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00272/38294/36492.pdf

Composition in essential and non-essential elements of early stages of cephalopods and dietary effects on the elemental profiles of Octopus vulgaris paralarvae
Provedor de dados: 5
Autores: Villanueva, Roger; Bustamante, Paco.
During the present study, we aimed at providing a first look at the elemental composition of the early stages of cephalopods as an approach to their elemental requirements in culture. Essential and non-essential elemental profiles of the European cuttlefish Sepia officinalis, the European squid Loligo vulgaris and the common octopus Octopus vulgaris laboratory hatchlings and wild juveniles were analysed. In addition, for O. vulgaris we determined elemental profiles of mature ovary, eggs in different stages of development and followed possible effects of four dietary treatments during paralarval rearing, also analyzing elemental content of the live preys Artemia nauplii and Maja brachydactyla hatchling zoeae. Content was determined for essential (As, Ca,...
Tipo: Text
Palavras-chave: Octopus; Loligo; Sepia; Larvae; Eggs; Biochemical composition.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2183.pdf

Donnees cytologiques, electrophysiologiques et biochimiques relatives au phenomene de fecondation chez le homard (Homarus gammarus ). Implication du processus d'activation sur le mecanisme d'attache des oeufs pondus
Provedor de dados: 5
Autores: Goudeau, M; Lachaise, F; Kubisz, P; Goudeau, H.
Electrophysiological measurements and related cytological controls were done on immature and submature oocytes of Homarus gammarus . By chromatography (HPLC) and radio-immunoassays (RIA) it was established that submature oocytes displayed different ecdysteroids. Furthermore, the structure of the stalk (funiculus) for the laid eggs attachment was analyzed. it consisted of the two superimposed vitelline envelopes which were likely modified by the cortical reaction exudate during the fertilization process. In addition, the successive secretory phases, regarding to the embryonic envelopes were evidenced. Finally, the ecdysteroid titers of embryonic stages were measured.
Tipo: Text
Palavras-chave: Homarus gammarus; Malacostraca; Biological attachment; Hormones; Electrophysiology; Biochemistry; Cytology; Eggs; Embryonic development; Cell membranes; Oocytes; Fecundity; Homard; Decapode; Crustacé; Funicule; Mues embryonnaires; Enveloppe de fécondation; Ecdystéroîdes; Potentiel membranaire; Ovocyte.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1190.pdf

Histogenese de l'organe Y (glande de mue) chez l'embryon de la crevette Palaemon serratus (Pennant) (crustace decapode Natantia)
Provedor de dados: 5
Autores: Leroux, A.
The Y organ appears during the embryonic development of the prawn (P. serratus ) at a stage approximately C, according to Richard's definition (1974). 3 weeks separate this stage from hatching at a temperature of 20 degree C. The organ formation is realized over 48 hours and is marked by an histological modification and a small mitotic crisis in the epidermal tissue from which it differentiates. Its metameric localization is mainly maxillular.
Tipo: Text
Palavras-chave: Palaemon serratus; Malacostraca; Eggs; Organogenesis; Embryonic development; Histology; Organe Y; Histogenèse; Crevette.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1193.pdf

Influence de la temperature sur la differentiation sexuelle des gonades chez la tortue luth (Dermochelys coriacea ); etude en incubation artificielle et naturelle
Provedor de dados: 5
Autores: Rimblot, F; Fretey, J; Lescure, J; Pieau, C.
Sexual differentiation of the marine leatherback turtle is sensitive to temperature. Incubation of eggs below 29 degree C results in 100% males, whereas incubationa bove 30 degree C results in 100% potential females at hatching. Therefore, the threshold temperature lies between 29 and 30 degree C as has been found for other marine turtles (Caretta caretta, Chelonia mydas ). Among hatchlings from natural nests in French Guiana, 10% were males, 20% were potential females and 70% had an intermediate phenotype. The sand temperature at 60 cm of depth, near one nest, was recorded and was found to vary between 29 and 30 degree C during the presumed thermosensitive period. These results will be useful to marine turtle hatcheries which seek to manipulate sex ratios...
Tipo: Text
Palavras-chave: Dermochelys coriacea; Chelonia mydas; Reptilia; Hatcheries; Natural populations; Incubation; Turtle culture; Eggs; Temperature effects; Sexual dimorphism.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1241.pdf

Nouvelles donnees sur la reproduction du thon rouge (Thunnus thynnus L.) et d'autres especes de thonides en Mediterranee
Provedor de dados: 5
Autores: Duclerc, J; Sacchi, J; Piccinetti, C; Piccinetti-manfrin, G; Dicenta, A; Barrois, J-m.
Two international research cruises on board of the research vessel 'Ichthys' the first one in Aug-Sept 1971, and the second other in June-July 1972, have shown the reproduction of Thunnus thynnus, T.alalunga, Auxis thazard and Sarda in the surroundings of the Balearic Islands. The observations were made on the planctonic stages of these spp and on the physico-chemical and biological conditions of the environment. Some data were also collected on the presence of juvenile or mature stages of these fishes and on their fishery.
Tipo: Text
Palavras-chave: Plankton; Eggs; Larvae; Physico chemical conditions; Mediterranean sea; Reproduction; Thunnidae; Bluefin tuna.
Ano: 1973
URL: http://archimer.ifremer.fr/doc/1973/publication-2159.pdf

Review and current status of the aquaculture potential for the mahimahi, Coryphaena hippurus
Provedor de dados: 5
Autores: Kraul, S.
The mahimahi, Coryphaena hippurus , has excellent potential for aquaculture due to its fast growth (2 kg at 6 months, 9 kg at 1 year), good food conversion efficiency (30%, wet weight), high fecundity with natural captive spawns (200,000 eggs/female/2 days year round for a 1 year old female), and high price (US$ 9.00/kg wholesale in Hawaii).
Tipo: Text
Palavras-chave: Copepoda; Rotifera; Coryphaena hippurus; Coryphaenidae; Pisces; Artificial feeding; Diets; Spawning; Fingerlings; Females; Eggs; Food; Food conversion; Hatcheries; Nutritional requirements; Growth.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1473.pdf

Experiences de reproduction artificielle de Loup Dicentrarchus labrax (Linne 1758).
Provedor de dados: 5
Autores: Barnabe, G.; Tournamille, J.-c.
Mature eggs were expressed from captured female and fertilised artificially with slightly bloody sperm, in dry conditions or in a humid atmosphere, both at 13 degree C. The best incubation conditions proved to be 13 degree C, with streptomycin and penicillin. Another sample was kept at 18 degree C. Hatching occurred after 4 or 5 days, larvae showing positive phototropism. The system of renewal of water and artificial food is described. The embryonic reserve drop of lipid disappeared between day 14 and 16. Observations on larvae were like previous ones, but live larvae had larger mouths than had fixed specimens, and it was found that temperatures of 13 degree C or 18 degree C were suitable beyond the egg stage. A sudden change in temperature caused by a...
Tipo: Text
Palavras-chave: Temperature; Sperm; Eggs; Dicentrarchus labrax; Artificial reproduction.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2063.pdf

Introduction: status and future of modelling physical-biological interactions during the early life of fishes
Provedor de dados: 5
Autores: Gallego, A; North, E; Petitgas, Pierre.
Modelling physical-biological interactions in the early life of fish is becoming an integral part of theoretical and applied marine ecology. A workshop on 'Advancements in modelling physical-biological interactions in fish early-life history' (WKAMF) was held in April 2006 to review recent developments and identify future research directions. Here we provide an overview of the information presented at WKAMF (some of which is published in this Theme Section), discussions that took place at the workshop, and the authors' perspectives as workshop co-Chairs. The major themes identified at the workshop were the need for enhanced model validation and sensitivity methods and improved understanding of physical and biological processes. Using the appropriate level...
Tipo: Text
Palavras-chave: Workshop; Individual based methods; Larvae; Eggs; Fish; Biophysical modelling.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-4311.pdf

Constitution of aquacultural stocks: Genetic aspects.
Provedor de dados: 5
Autores: Chevassus, B.
Before reaching of production level justifying an elaborated genetic improvement program, the new aquaculture species deserve a minimal strategy to avoid the consequences of uncontrolled genetic phenomena. Three main aspects will be discussed: initial constitution of the broodstock; maintenance of the broodstock; selection of the broodstock.
Tipo: Text
Palavras-chave: Oncorhynchus keta; Salmo salar; Salmo trutta; Salmonidae; Pisces; Marine molluscs; Marine fish; Sex ratio; Females; Males; Eggs; Larvae; Spawning populations; Aquaculture; Population genetics.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1442.pdf

Aquaculture of red tilapia Oreochromis sp. in marine environments: State of the art.
Provedor de dados: 5
Autores: Watanabe, W; Ernst, D; Olla, B; Wicklund, R.
The Caribbean Marine Research Centre is conducting research on the development of methods for intensive culture of euryhaline red tilapias in marine environments for application to Caribbean islands and similar regions with limited freshwater resources.
Tipo: Text
Palavras-chave: Survival; Growth; Eggs; Brood stocks; Incubation; Brackish water; Seed (aquaculture); Food conversion; Hatcheries; Controlled conditions; Diets; Floating cages; Sea water; Salinity tolerance; Intensive culture; Fingerlings.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1493.pdf

Intensive larval rearing trials of red drum (Sciaenops ocellata ) in Martinique (F.W.I.).
Provedor de dados: 5
Autores: Soletchnik, Patrick; Thouard, Emmanuel; Goyard, Emmanuel.
The red drum Sciaenops ocellata (Linneaus, 1766) was introduced in Martinique (F.W.I.) from the United States (Texas and Florida). Thirteen intensive larval rearing attempts, from 7 batches of imported eggs, have been conducted for two years.
Tipo: Text
Palavras-chave: Pisces; Growth; Larval development; Rearing; Hatching; Nutrition; Stocking density; Food conversion; Growth rate; Survival; Fingerlings; Fish; Eggs.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1434.pdf

Transfection of Gametes: A Method to Generate Transgenic Animals
Provedor de dados: 77
Autores: Esponda,Pedro.
The production of transgenic animals (TA) using transfected spermatozoa or eggs is commented. Different methods have been employed to introduce transgenes into the gametes of several vertebrates and invertebrates. Methods for the transfection of gametes have employed naked DNA, viral vectors, DNA/Liposome complexes, electroporation or high velocity microprojectiles. Spermatozoa and oocytes or eggs have showed a good transfection efficience (80% in some cases), and microscopical observations demonstrated that the transgenes appeared localized in the nucleus. Gametes have shown to be naturally protected against the entrance of foreign genes because some semino plasma or plasma membrane proteins block the entrance of foreign genes in spermatozoa. In the...
Tipo: Journal article
Palavras-chave: Eggs; Oocyte; Spermatozoa; Transfection; Transgenic animals.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000300017

BIOINSECTICIDE ACTION OF THE VENOM OF AFRICANIZED BEES Apis mellifera LINNAEUS 1758 (HYMENOPTERA: APIDAE): I -THE MOST SUSCEPTIBLE AGE OF Diatraea saccharalis FABRICIUS 1794 (LEPELETIER: PYRALIDAE) EGGS TO THE VENOM ACTION
Provedor de dados: 79
Autores: BONFANTI-ALMEIDA,J.C.; GOBBI,N.; PALMA,M.S.
The present paper aimed at testing the action of non-lyophilized venom of Africanized bees Apis mellifera through topical applications on Diatraea saccharalis egg masses. The CL50, DL50 and the most susceptible age of eggs to the venom topic application were also determined. Three-day-old eggs were the most susceptible to the venom action with CL50 equal to 8.6 mg/ml and DL50 equal to 0.173 mg/mass. The venom loses its action after being stored for 15 days.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Venom; Africanized bee; Apis mellifera; Eggs; Sugar-cane borer; Diatraea saccharalis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100006

Zur taxonomischen und phylogenetischen Bedeutung der Feinstruktur der Eischale der Parnassiinae (Lepidoptera: Papilionidae)
Provedor de dados: 16
Autores: Häuser, Chr.L.; Naumann, C.M.; Kreuzberg, A.V.-A.
The chorion surface structure of the eggs of 31 species of the subfamily Parnassiinae was studied by SEM on a comparative basis. The eggs are briefly described and taxonomic characters are illustrated. The eggs of all examined species of the genus Parnassius possess a very thick, externally highly sculptured chorion, whereas in all other genera of the Parnassiinae the eggs are externally smooth, as in most Papilioninae. The thickened, externally sculptured chorion is regarded as an autapomorphy of the genus Parnassius, which probably is linked to the hibernation of the fully developed first instar larvae within the egg shell. Die Feinstruktur der Chorionoberfläche der Eier von 31 Arten der Unterfamilie Parnassiinae wurde vergleichend...
Tipo: Article / Letter to the editor
Palavras-chave: Parnassiinae; Eggs; Chorion; Microsculpture; Phylogeny; 42.75.
Ano: 1993
URL: http://www.repository.naturalis.nl/record/318175

Identification of fish nursery areas in a free tributary of an impoundment region, upper Uruguay River, Brazil
Provedor de dados: 83
Autores: Silva,Patrícia Alves da; Reynalte-Tataje,David Augusto; Zaniboni-Filho,Evoy.
This study aims to determine the importance of different environments of the Ligeiro River (upper Uruguay River, Brazil) in fish reproduction. For this purpose, three environments (sampling sites) were selected: rapids, a pool, and the mouth of the Ligeiro River. Ichthyoplankton, zooplankton, and benthos were sampled six times per month from September, 2006 to March, 2007. Zooplankton and ichthyoplankton samples were collected early in the evening with plankton nets (64 µm and 500 µm, respectively). Benthos samples were also collected early in the evening with a Van Veen dredge. Local abiotic variables (temperature, dissolved oxygen, pH, electrical conductivity, water speed, alkalinity, water hardness, and water transparency) were measured simultaneously...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Growth sites; Ichthyoplankton; Larvae; Spawning sites.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200018

Embryonic development and larval stages of Steindachneridion parahybae (Siluriformes: Pimelodidae): implications for the conservation and rearing of this endangered Neotropical species
Provedor de dados: 83
Autores: Honji,Renato M.; Tolussi,Carlos E.; Mello,Paulo H.; Caneppele,Danilo; Moreira,Renata G.
Steindachneridion parahybae is a freshwater catfish endemic to the Paraíba do Sul River and is classified as an endangered Neotropical species. An increasing number of conservation biologists are incorporating morphological and physiological research data to help conservation managers in rescue these endangered species. This study investigated the embryonic and larval development of S. parahybae in captivity, with emphasis in major events during the ontogeny of S. parahybae. Broodstocks were artificially induced to reproduce, and the extrusion occurred 200-255 degree-hours after hormonal induction at 24°C. Larval ontogeny was evaluated every 10 minutes under microscopic/stereomicroscopic using fresh eggs samples. The main embryogenic development stages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial reproduction; Early development; Eggs; Larvae; Surubim do Paraíba.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200007

Composición, abundancia y distribución del ictioplancton alrededor de las Islas Malvinas, desde 1996 hasta 2003
Provedor de dados: 20
Autores: Schenone, N. F.; Navarro, C.
Se presenta la composicion, abundancia y distribucion del ictioplancton obtenido en la campana del BIP Dr. Eduardo L. Holmberg EH-04 04 03 realizada en octubre de 2003  Instituto Nacional de Investigacion y Desarrollo Pesquero INIDEP, Argentina). Se efectua una comparacion con datos obtenidos en otras campanas realizadas en la zona alrededor de las Islas Malvinas  Argentina, Atlantico SO , en primavera desde 1996 hasta 2003. Se describe la variacion de la extension de las areas de puestas y cria en los distintos anos. Se han identificado huevos de peces en el 42 por ciento de las muestras que pertenecen a Coelorynchus fasciatus, Micromesistius australis, Salilota australis y Sprattus fueguensis y larvas en el 75 porciento de las muestras, pertenecientes a...
Tipo: Theses and Dissertations
Palavras-chave: Abundance; Eggs; Fish larvae; Geographical distribution; Ichthyoplankton surveys; Identification keys.
Ano: 2004
URL: http://hdl.handle.net/1834/5783

Estrategia reproductiva de la saraca, Brazilian menhaden, Brevoortia aurea (Pisces: Clupeidae), en el estuario del Río de la Plata
Provedor de dados: 20
Autores: Acha, E.M.
The Brazilian menhaden, Brevoortia aurea, is the only species of genus Brevoortia in South American Atlantic waters, being abundant in the Rio de la Plata estuary.  The temporal and spatial reproductive pattern of this menhaden was analyzed in relation to the major hydrographic features of the region, and the reproductive biology was studied by using histological analysis of ovaries. B.aurea is a multiple spawner with indeterminate annual fecundity. Daily spawning activity was mostly in the afternoon (15:00 - 16:00),based on the incidence of females with both hydrated oocytes and postovulatory follicles. Spawning frequency, determined using the percentage of females with postovulatory follicles, was about 12.  during November.  At this frequency, each...
Tipo: Theses and Dissertations
Palavras-chave: Reproduction; Fecundity; Ovaries; Fish larvae; Eggs; Life history; Brackishwater fish; Spawning grounds; Spawning seasons; Estuaries; Estuaries; Ovaries; Eggs; Life history; Spawning grounds; Reproduction; Fecundity; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_5456; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_12170; Http://aims.fao.org/aos/agrovoc/c_7277; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_2924.
Ano: 1999
URL: http://hdl.handle.net/1834/1458

Diagnóstico del plancton en el estuario de San Lorenzo en agosto 2006 (Esmeraldas-Ecuador)
Provedor de dados: 20
Autores: Torres, G.; Andrade, C.
Se realizó un monitoreo del plancton en el estuario de San Lorenzo en junio 2006. En los resultados se registró 128 especies del fitoplancton (método cuantitativo) y 50 especies (cualitativo). Las diatomeas más representativas fueron S. costatum, T. nitzschioides, P. longissima, L. danicus, Navicula sp., P. sulcata: T. nitzschioides. Thalassiosira sp. y flagelados (cuantitativo); S. costatum, Coscinodiscus sp., N. sigma y P.  Sulcata (cualitativo). La presencia de Gymnodinium sp. P. maximun y M. rubrum podría asociarse con la formación de mareas rojas al interior del estuario. En los resultados del zooplancton registrarón 16 taxas constituidos mayoritariamente por Zoeas de Brachiura y Copépodos, distribudidos en toda el área de estudio principalmente en...
Tipo: Journal Contribution
Palavras-chave: Plankton; Diatoms; Phytoplankton; Zooplankton; Biomass; Fish larvae; Eggs; Abundance; Estuaries; Species diversity; Zooplankton; Biomass; Eggs; Estuaries; Plankton; Phytoplankton; Fish larvae; Species diversity; Diatoms; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_5950; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_2924; Http://aims.fao.org/aos/agrovoc/c_33954; Http://aims.fao.org/aos/agrovoc/c_32657.
Ano: 2007
URL: http://hdl.handle.net/1834/2378

Clave de identificación de cápsulas de huevos de condrictios del Mar Argentino
Provedor de dados: 20
Autores: Mabragaña, E.; Figueroa, D.E.; Scenna, L.B.; Díaz de Astarloa, J.M.; Colonello, J.H.; Massa, A.M.
Twenty eight species of oviparous chondrichthyans were reported on the Argentine Continental Shelf (SW Atlantic). The egg cases laid on the sea bed provide useful information to identify species, eggs laying areas and seasons. Based on the analysis of 155 egg cases corresponding to 21 chondrichthyan species, an illustrated field guide for a correct identification is presented.
Tipo: Journal Contribution
Palavras-chave: Reproduction; Oviparity; Eggs; Identification keys; Marine fish; Marine environment; Eggs; Marine environment; Reproduction; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 2009
URL: http://hdl.handle.net/1834/3459

Bioecología de huevos y larvas de peces Cetengraulis mysticetus (Chuhueco), Opisthonema sp. (Pinchagua) y Anchoas en la reserva ecológica manglares Cayapas-Mataje -  Ecuador
Provedor de dados: 20
Autores: Luzuriaga de Cruz, M.; Solano Ch., F.; Cevallos, D.
La presente investigación es parte del Convenio de Cooperación Técnica entre el Fondo Ecuatoriano Populorum Pregressio (FEPP) y el Instituto Nacional de Pesca (INP) y tiene como fin principal el estudio de huevos y larvas de chuhueco (Cetengraulis mysticetus), anchoas (Anchoa sp., Anchovia sp. y Engraulis) y pinchagua (Opisthonema sp.) en relación con abundancia y distribución de la microfauna zooplanctónica presente en los esteros durante el período comprendido entre abril del 2000 y diciembre del 2001.
Tipo: Journal Contribution
Palavras-chave: Zooplankton; Ichthyoplankton; Eggs; Larvae; Mangroves; Zooplankton; Eggs; Larvae; Mangroves; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_4204; Http://aims.fao.org/aos/agrovoc/c_16190.
Ano: 2007
URL: http://hdl.handle.net/1834/2404

Bioenergética del besugo Pagrus pagrus.
Provedor de dados: 20
Autores: Aristizabal, E.O.
The utilization of the energy of food by red porgy (Pagrus pagrus Linnaeus, 1758) from the Argentine Sea (SW Atlantic) was studied. From the energetic point of view, it is proposed that the strategy of patitioning, utilization and storage of the energy of food, is an indicator of the organism response to the environmental conditions. The main objective was to know the proportion of the energy of food derived to the different components of the bioenergetics budget. In order to estimate the monthly energy investment in reproductive growth, chemical analysis of gonads from fishes caught by the fishery fleet and from laboratory studies were performed. Two indexes were used to calculate the energy investment in female ovaries: the proportion of net daily energy...
Tipo: Theses and Dissertations
Palavras-chave: Fish culture; Bioenergetics; Eggs; Fish larvae; Food consumption; Energy budget; Metabolism; Oxygen consumption; Fish culture; Eggs; Food consumption; Metabolism; Fish larvae; Oxygen consumption; Http://aims.fao.org/aos/agrovoc/c_2918; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_3016; Http://aims.fao.org/aos/agrovoc/c_4769; Http://aims.fao.org/aos/agrovoc/c_2924; Http://aims.fao.org/aos/agrovoc/c_5478.
Ano: 2003
URL: http://hdl.handle.net/1834/1466

Distribución y abundancia de huevos y larvas de langostino patagónico (Pleoticus muelleri) (Penaeoidea, Solenoceridae) en las temporadas estivales de 2008 y 2009
Provedor de dados: 20
Autores: Moriondo Danovaro, P.
The study on distribution and abundance of eggs and early planktonic stages of red shrimp, Pleoticus muelleri (Bate, 1888), contributes to a better knowledge of the species dynamics. Results from processing and analyzing 72 plankton samples collected with Bongo net during two research cruises on board of FV “Arbumasa XVIII” and RV “Capitán Oca Balda”, carried out in the Patagonian littoral in March 2008 and January 2009, are presented. In both cruises, eggs and larval stages were found all over the study area. The highest punctual densities of eggs were recorded in the area known as “La Pared” (46° 45’ S-65° 55’ W and 46° 50’ S-65° 55’ W). Eggs indicate the presence of shrimp reproductive concentrations which, while migrating eastwards towards waters of...
Tipo: Journal Contribution
Palavras-chave: Fish larvae; Eggs; Abundance; Fishery surveys; Pleoticus muelleri; Marine environment.
Ano: 2011
URL: http://hdl.handle.net/1834/4880

Broodstock management and induced spawning of flounder Paralichthys orbignyanus (Valenciennes, 1839)under a closed recirculated system
Provedor de dados: 20
Autores: Bambill, G.A.; Oka, M.; Radonic, M.; López, A.V.; Müller, M.I.; Boccanfuso, J.; Bianca, F.
The present study was conducted to determine the parameters regulating spawning performance of P. orbignyanus wild broodstock. The adaptation to captivity was successfully achieved with minimal stress levels. In three consecutive spawning seasons, the annual photothermal manipulation was not effective for the maturation and natural spawning of females although males were running. Females were HCG injected, releasing non fertilized eggs. Artificial fertilization was carried out after stripping the fish with a total production of 18,000 fertilized eggs in 2001 (egg diameter=800±10 µm), 55,300 in 2002 (egg diameter= 850±12 µm)and 1,635,000 fertilized eggs in 2003 (egg diameter 818.4 ±30.08 µm, oil drop 98.1 ±2.96 µm). For the study of the ovulationtime,...
Tipo: Journal Contribution
Palavras-chave: Fish culture; Marine fish; Brood stocks; Eggs; Induced breeding; Fish culture; Eggs; Http://aims.fao.org/aos/agrovoc/c_2918; Http://aims.fao.org/aos/agrovoc/c_2502.
Ano: 2006
URL: http://hdl.handle.net/1834/1814

Preliminary study on hatching of rotifers (Brachionus plicatilis) and copepods (Cyclopoida): response to flooding and organic fertilisation
Provedor de dados: 20
Autores: Mwandya, A.W.; Kyewalyanga, M.S.; Valdenberg, A.
The effect of water flooding, organic fertiliser application and salinity manipulation in stimulating the hatching of rotifer resting eggs was investigated during the dry season (in August/September 1999) in simulation tanks and earthen ponds at Makoba, Zanzibar. The majority of hatched zooplankton included rotifers, identified as Brachionus plicatilis, and other zooplankton such as copepods and protozoa were present in small numbers. The number of rotifers hatched in simulation treatments with low salinity was higher than the values in treatments containing undiluted seawater. Up to 22 ± 1.5 (mean ± SE) rotifers/ml were counted in treatments with low salinity, whereas only a maximum of 13 ± 1. rotifers/ml were found in high-salinity treatments. On the...
Tipo: Journal Contribution
Palavras-chave: Eggs; Resting spores; Salinity; Flooding; Hatching; Eggs; Salinity; Fertilization; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_6751; Http://aims.fao.org/aos/agrovoc/c_2863.
Ano: 2004
URL: http://hdl.handle.net/1834/1093

Evaluación del stock desovante de anchoveta en la I y II Regiones, año 2003
Provedor de dados: 20
Autores: Braun, M.; Claramunt, G.; Reyes, H.; Catasti, V.; Montenegro, C.; Baros, V.; Díaz, E.; Pizarro, J.; Pizarro, P.
El informe contiene los resultados correspondientes al desarrollo del crucero Módulo huevos y Módulo adultos del Proyecto FIP 2003-07. De conformidad con la metodología planteada en la propuesta técnica y con el fin de estimar los parámetros biológicos que requiere la aplicación del Método de Producción de Huevos, a saber: fecundidad media poblacional, frecuencia de desove, proporción sexual, producción diaria de huevos y peso estimado de hembras maduras, se realizaron los respectivos muestreos para el recurso anchoveta, durante el período de máxima actividad reproductiva del año 2003.
Tipo: Report
Palavras-chave: Stock assessment; Reproduction; Eggs; Fecundity; Pelagic fisheries; Spawning; Eggs; Stock assessment; Spawning; Reproduction; Fecundity; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_14490; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 2004
URL: http://hdl.handle.net/1834/1732

Performance of layers on sorghum-based poultry feed rations
Provedor de dados: 30
Autores: Reddy, A.R.,( A. Rajasekher Reddy ).
Palavras-chave: Sorghum; Eggs; Body weight; Egg products; Feed consumption; Cereals; Grain; Layering; Maize; Wet season.
Ano: 2005
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3253

Plant Resistance to Insects in Sorghum
Provedor de dados: 30
Autores: H.C.
Palavras-chave: Crops; Sorghum; Biological interaction; Animal developmental stages; Genotypes; Genes; Grain; Antibiosis; Eggs.
Ano: 1997
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4662

Pigeonpea and chickpea insect identification handbook
Provedor de dados: 30
Autores: W.
Palavras-chave: Pigeonpeas; Animal developmental stages; Chickpeas; Eggs; Insecticides; Root nodulation; Biological interaction; Natural enemies; Fruits.
Ano: 1989
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4247

Life expectancy of Helicoverpa armigera on chickpea
Provedor de dados: 30
Autores: Dabhi, M.V.
Palavras-chave: Chickpeas; Animal ecology; Eggs; Poultry equipment; Grain legumes; Animal developmental stages; Sexual reproduction; Population dynamics; Ecology; Mass media.
Ano: 2007
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3341

Techniques to Screen Sorghums for Resistance to Insect Pests
Provedor de dados: 30
Autores: H.C.
Palavras-chave: Biological interaction; Sorghum; Genotypes; Animal developmental stages; Grain; Eggs; Diapause; Rearing techniques; Sowing date; Sprinklers.
Ano: 1992
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4099

A groundnut insect identification handbook for India
Provedor de dados: 30
Autores: J.A.
Palavras-chave: Animal developmental stages; Groundnuts; Biological interaction; Insecticides; Flours; Fruits; Necrosis; Sexual reproduction; Eggs; Lithological soil types.
Ano: 1993
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4172

Sorghum insect identification handbook
Provedor de dados: 30
Autores: G.L.
Palavras-chave: Animal developmental stages; Eggs; Biological interaction; Sorghum; Cultural control; Diapause; Grain; Chemical control; Fruits; Insecticides.
Ano: 1983
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4245

Evaluation of sorghum germplasm for resistance to insect pests
Provedor de dados: 30
Autores: H.C.
Palavras-chave: Biological interaction; Sorghum; Genotypes; Germplasm; Animal developmental stages; Grain; Diapause; Sowing date; Eggs; Polysaccharides.
Ano: 2003
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4232

Expression of antixenosis and antibiosis components of resistance to spotted stem borer Chilo partellus in sorghum under greenhouse conditions
Provedor de dados: 30
Autores: Kumar, V.K.,( V. Kishore Kumar ).
Palavras-chave: Genotypes; Antibiosis; Sorghum; Defence mechanisms; Embryonic development; Animal developmental stages; Eggs; Sexual reproduction; Biological interaction; Planting.
Ano: 2007
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3304

Variation in egg and larval quality in various fish and crustacean species
Provedor de dados: 27
Autores: Lavens, P.; Sorgeloos, P.
It is generally accepted, that a major constraint in the further development of marine fish and crustacean aquaculture, is the variable quality of eggs and larvae used for the hatchery-production of fry. Nonetheless, valid criteria to evaluate optimal egg quality have not been identified yet. Instead, particular indicators, are used, e.g. the fertilization and hatching rate, overall culture success during the first rearing period, etc., but these are not totally objective because hatchery-specific conditions may interfere. The biochemical composition of the egg may be one of the possible determinants of egg quality, which can be evaluated on a more objectie basis. In this respect, studied have been initiated to analyze in freshly-released eggs, the levels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Biochemical composition; Crustacean culture; Eggs; Fatty acids; Fish culture; Hatcheries; Quality control; Vitamin C.
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/262328.pdf

Maturation performance, offspring quality and lipid composition of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; females fed increasing levels of dietary phospholipids
Provedor de dados: 27
Autores: Cavalli, R.O.; Menschaert, G.; Lavens, P.; Sorgeloos, P.
The effects of increasing levels of dietary phospholipids (PL) on the reproductive performance, egg and larval quality, and lipid composition of females of the freshwater prawn &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; were investigated. Three isolipidic diets containing similar amounts of highly unsaturated fatty acids but varying levels of PL (0.8, 2.4 and 4.6%) were fed during 180 days to three groups of eight females originating from Thai ponds. No significant differences were observed for fecundity, egg size and hatchability, starved larvae size, and size, survival and tolerance to stress of 8 day-old larvae. Similarly, no major differences in the lipid composition of the midgut gland, ovaries and muscle tissue of females could be detected. Results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Brood stocks; Complex lipids; Diets; Eggs; Feed composition; Feeding experiments; Females; Prawn culture; Sexual maturity; Sexual reproduction; Macrobrachium rosenbergii; Thailand.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3347

HUFA levels in eggs of wild and cultured broodstock of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt;
Provedor de dados: 27
Autores: Lavens, P.; Piyatiratitivorakul, S.; Menasveta, P.; Sorgeloos, P.
The variation in egg quality, i.e. the potential of the egg to produce viable fry, is still a limiting factor in the commercial production of marine fish and crustacean fry. Better knowledge in this field would contribute to improved and especially more consistent hatchery outputs and to the development of more suitable broodstock diets. So far, objective criteria to evaluate egg quality are scarce. However, it is very likely that the nutrient composition of the eggs may be a good indicator for egg viability as it reflects the nutrient demands of the developing embryo and larva. Since (n-3) highly unsaturated fatty acids (HUFAs) have been identified as essential nutrients for the larvae of marine fish, shrimp and prawn a case study has been initiated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochemical composition; Brood stocks; Comparative studies; Eggs; Fatty acids; Prawn culture; Shrimp culture; Macrobrachium rosenbergii.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2876

Industrialization and Contracting in U.S. Agriculture
Provedor de dados: 31
Autores: Ahearn,   Mary Clare; Korb,   Penelope J.; Banker,   David E.
This paper examines the industrialization process of U.S. agriculture by examining the trends in the number of farms, the concentration of production during the last decade, and the dynamics of farm survivability, entry, and exit underlying aggregate statistics.  We next examine vertical coordination as part of the industrialization process and highlight contracting in the poultry industry.  The analysis provides evidence that production is continuing to be concentrated on a smaller number of farms at a relatively rapid rate, in spite of the stability in the number of farms.  Although contracting clearly dominates the broiler industry, it is less prevalent in egg and turkey production, where other forms of vertical coordination are likely established.
Tipo: Journal Article
Palavras-chave: Broilers; Contracting; Eggs; Industrialization; Poultry; Structural change; Turkeys; Vertical integration; D23; D40; L11; L14 L22; L23; Q12.
Ano: 2005
URL: http://purl.umn.edu/43511

Medium Term Outlook for Canadian Agriculture International and Domestic Markets
Provedor de dados: 31
Autores: Charlebois,   Pierre; Gagne,   Stephan; Gendron,   Carole.
The purpose of this document is to describe the features of the MTO covering the period 2010 to 2020. The MTO is a plausible future for the international and domestic agri-food sectors based on current policies in Canada and other countries as of Fall 2010. It serves as a benchmark for discussion and scenario analysis.  The outlook makes specific assumptions and outlines their implications. Since it assumes that policies remain unchanged from existing legislation, the outlook is not a forecast of future events. In particular there are no assumptions made regarding the outcome of the Doha round of trade negotiations. It also assumes no impact from climate change and from policy to mitigate climate change nor significant animal disease outbreaks or unusual...
Tipo: Report
Palavras-chave: Outlook; Agriculture; Cereals; Oilseeds; Bio-fuels; Livestock; Red meats; Milk; Dairy products; Chicken; Turkey; Eggs; Agribusiness; Agricultural and Food Policy; International Relations/Trade; Livestock Production/Industries.
Ano: 2011
URL: http://purl.umn.edu/103186

Medium Term Outlook for Canadian Agriculture - International and Domestic Markets
Provedor de dados: 31
Autores: Charlebois,   Pierre; Gagne,   Stephan.
The purpose of this document is to describe the features of the Agriculture and Agri-Food Canada (AAFC) Medium Term Outlook for Canadian Agriculture (previously entitled Medium Term Policy Baseline) covering the period 2008 to 2018. The outlook is an attempt to outline a plausible future of the international and domestic agri-food sectors. It serves as a benchmark for discussion and scenario analysis. The outlook makes specific assumptions and outlines their implications. Since it assumes that policies remain unchanged from existing legislation, the outlook is not a forecast of future events. The medium term assumptions used and published by the OECD/FAO in the Agricultural Outlook are by in large maintained in the AAFC's outlook but updated to reflect...
Tipo: Report
Palavras-chave: Outlook; Agriculture; Cereals; Oilseeds; Bio-fuels; Livestock; Red meats; Milk; Dairy products; Chicken; Turkey; Eggs; Agribusiness; Agricultural and Food Policy; International Relations/Trade; Livestock Production/Industries.
Ano: 2009
URL: http://purl.umn.edu/51718

Trading Behavior in a Marginal Organized Market
Provedor de dados: 31
Autores: Peterson,   Hikaru Hanawa.
As increasingly more transactions occur away from open markets, the so-called "thin" market issues arise. This paper analyzes unpublished transaction data from Egg Clearinghouse, Inc. (ECI), a marginal marketplace for eggs that trades 4% of all eggs (80% of eggs available for open trading). Results suggest that marginalized markets can serve as an inventory adjustment mechanism while maintaining the role of price discovery as a check for non-market prices. At ECI, most firms both buy and sell regardless of operational types, participation is balanced across all types of firms in the industry, and sellers in general yield to buyers' preferred terms of trade.
Tipo: Journal Article
Palavras-chave: Eggs; Inventory adjustment; Organized market; Price discovery; Thin market; Agribusiness.
Ano: 2005
URL: http://purl.umn.edu/30981

The Price of Happy Hens: A Hedonic Analysis of Retail Egg Prices
Provedor de dados: 31
Autores: Chang,   Jae Bong; Lusk,   Jayson L.; Norwood,   F. Bailey.
This paper analyzes price differentials among conventional, cage-free, organic, and Omega-3 eggs using retail scanner data from two regional markets and the United States as a whole. Results reveal significant premiums attributable to cage-free (a 57% premium on average) and organic (an 85% premium on average). However, significant variation exists among geographic locations; price premiums for organic over conventional eggs in Dallas are almost twice as high as those in San Francisco. Estimates indicate that about 42% of the typically observed premium for cage-free eggs over conventional eggs (and 36% of the premium for organic eggs) can be attributed to egg color rather than differences in hens’ living conditions. Despite the large implicit price...
Tipo: Journal Article
Palavras-chave: Animal welfare; Cage-free; Eggs; Free-range; Hedonic; Organic; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2010
URL: http://purl.umn.edu/97855

Hedonic Analysis of Sustainable Food Products
Provedor de dados: 31
Autores: Satimanon,   Thasanee; Weatherspoon,   Dave D.
www.ifama.org
Tipo: Journal Article
Palavras-chave: Hedonic; Sustainable; Sustainability; Eggs; Free-range; Cage-free; Agribusiness; Q13.
Ano: 2010
URL: http://purl.umn.edu/96336

Dietary Assessment of Major Trends in U.S. Food Consumption, 1970-2005
Provedor de dados: 31
Autores: Wells,   Hodan Farah; Buzby,   Jean C.
This report examines major trends in the amount of food available for consumption in the United States between 1970 and 2005 using data from the ERS Food Availability (Per Capita) Data System. The report also estimates whether Americans are meeting Federal dietary recommendations for each of the major food groups by comparing the data with dietary recommendations in the 2005 Dietary Guidelines for Americans and the MyPyramid Food Guidance System. Findings show that Americans do not meet the Federal dietary recommendations. In order to meet them, Americans would need to substantially lower their intake of added fats, refined grains, and added sugars and sweeteners and increase their consumption of fruits, vegetables, whole grains, and lowfat milk and milk...
Tipo: Report
Palavras-chave: Agriculture; Added fats and oils; Added sugars and sweeteners; Dairy; Dietary Guidelines for Americans; Dietary recommendations; Eggs; Food; Food consumption; Fruits; Meat; MyPyramid Food Guidance System; Nutrients; Grains; Nuts; Vegetables.; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety.
Ano: 2008
URL: http://purl.umn.edu/58641

Medium Term Outlook for Canadian Agriculture - International and Domestic Markets
Provedor de dados: 31
Autores: Charlebois,   Pierre.
The purpose of this document is to describe the features of the Agriculture and Agri-Food Canada (AAFC) Medium Term Outlook for Canadian Agriculture covering the period 2009 to 2019. The outlook is an attempt to outline a plausible future of the international and domestic agri-food sectors. It serves as a benchmark for discussion and scenario analysis.  The outlook makes specific assumptions and outlines their implications. Since it assumes that policies remain unchanged from existing legislation, the outlook is not a forecast of future events. In particular there are no assumptions made regarding the outcome of the Doha round of trade negotiations. It also assumes no impact from climate change and from policy to mitigate climate change nor significant...
Tipo: Report
Palavras-chave: Outlook; Agriculture; Cereals; Oilseeds; Bio-fuels; Livestock; Red meats; Milk; Dairy products; Chicken; Turkey; Eggs; Agribusiness; Agricultural and Food Policy; International Relations/Trade; Livestock Production/Industries.
Ano: 2010
URL: http://purl.umn.edu/59883

Medium Term Outlook for Canadian Agriculture
Provedor de dados: 31
Autores: Charlebois,   Pierre; Gagne,   Stephan.
The purpose of this document is to describe the features of the Agriculture and Agri-Food Canada (AAFC) Medium Term Outlook for Canadian Agriculture (previously entitled Medium Term Policy Baseline) covering the period 2007 to 2017. The outlook is an attempt to outline a plausible future of the international and domestic agri-food sectors. It serves as a benchmark for discussion and scenario analysis. The outlook makes specific assumptions and outlines their implications. Since it assumes that policies remain unchanged from existing legislation, the outlook is not a forecast of future events.  The medium term assumptions used and published by the OECD/FAO in the Agricultural Outlook 2007-2016 are by in large maintained in the AAFC's international...
Tipo: Report
Palavras-chave: Outlook; Agriculture; Cereals; Oilseeds; Bio-fuels; Livestock; Red meats; Milk; Dairy products; Chicken; Turkey; Eggs; Agribusiness; Agricultural and Food Policy; International Relations/Trade; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/47129

Mercury Bioaccumulation in Eggs of Hens Experimentally Intoxicated with Methylmercury Chloride and Detoxified with a Humic-Aluminosilicate Preparation
Provedor de dados: 89
Autores: Barej,R; Dobrzański,Z; Popiela-Pleban,E; Bubel,F; Polak-Juszczak,L.
ABSTRACT The aim of the study was to evaluate the effectiveness of preventive-detox preparation (P-dP) based on humic and aluminosilicate substances in the diet of laying hens (3% daily dose) previously intoxicated with methylmercury chloride (CH3ClHg, 5 mg Hg/kg feed mixture) for six weeks. Mercury content in the whole eggs of the group intoxicated with CH3ClHg increased compared to the control group: 488-fold after 1 wk, 622-fold after 2 wks, and 853-fold after 6 wks of intoxication. The use of P-dP in the group previously intoxicated with CH3ClHg reduced he mercury content of whole eggs by 18.4%, on average, whereas the average was 29.9% two weeks after the discontinuation of CH3ClHg and P-dP supply. Maximum Hg content in the whole egg was observed in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Humic-aluminosilicate preparation; Mercury.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400531

Mixed crude glycerin in laying hen diets: live performance and egg quality and fatty acid profile
Provedor de dados: 89
Autores: Duarte,CRA; Murakami,AE; Boso,KMO; Eyng,C; Ospina-Rojas,IC; Matumoto-Pintro,PT.
This study evaluated the performance and the quality and fatty acid profile of eggs from laying hens fed diets containing mixed crude glycerin (MCG; 80% vegetable fat + 20% animal fat). A total of 240 39-week-old Hy-Line W36 laying hens were distributed according to a completely randomized experimental design into six treatments consisting of graded MCG dietary inclusion levels (0, 1.5, 3.0, 4.5, 6.0, and 7.5%), with five replicates of eight birds each. Feed intake linearly decreased (p&lt;0.05) with increasing MCG inclusion levels. The percentages of myristic, palmitic, and α-linolenic acids in the eggs linearly decreased as MCG dietary levels increased (p&lt;0.05), while α-linoleic acid, polyunsaturated fatty acids (PUFA) and ω-6/ω-3 ratio linearly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Excreta moisture; Eggs; Fatty acids; Glycerin; Glycerol; Lipid profile.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400003

The role of poultry industry in indian economy
Provedor de dados: 89
Autores: Vetrivel,SC; Chandrakumarmangalam,S.
Poultry farming in India, in spite of several constraints, has progressed considerably during the last decade. The present study has been undertaken to examine various aspects related to the growth and development of poultry production in the country. Poultry production in India was confined to backyards till recently. Local breed of birds were reared for the supply of eggs and meat. The increasing demand for poultry products necessitates augmenting the supply by importing improved breeds of poultry. In 1961, the proportion of hybrid populations in the total population of poultry was about 2 percent. Within a couple of decades, these birds have dominated the market sidelining the indigenous birds. The technological advances have revolutionized the role and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Supply; Production; Technology; Growth; Population.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400001

Penetration time of Salmonella Heidelberg through shells of white and brown commercial eggs
Provedor de dados: 89
Autores: Raghiante,F; Rocha,TS; Rossi,DA; Silva,PL.
This study aimed at determining the minimum time required for the penetration of Salmonella Heidelberg inside the eggs after contact with contaminated material. Recently-collected brown and white eggs from laying hens between 45-50 weeks of age, reared in a commercial poultry house, were artificially contaminated by contact with wood shavings moistened with liquid inoculum of Salmonella Heidelberg in stationary-growth phase (10³-10(4) CFU g-1). According to type (white or brown), eggs were distributed into three different groups, with four replicates each: negative control group (no artificial contamination), positive control group (analyzed externally immediately after contamination and internally after the maximum storage period of the test group) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Penetration time; Salmonella Heidelberg.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000400009

Effect of dietary organic selenium and zinc on the internal egg quality of quail eggs for different periods and under different temperatures
Provedor de dados: 89
Autores: Fernandez,IB; Cruz,VC; Polycarpo,GV.
The objective of this study was to evaluate the internal quality of eggs of Japanese quails fed diets supplemented with chelated selenium and zinc. The experiment was carried out for 120 days, and 144 birds were divided in random blocks into four treatments (control; 0.3 ppm Se; 60 ppm Zn and 0.3 ppm Se + 60 ppm Zn). Ten, 14, 18, and 22 weeks after the beginning of lay, eggs were collected and stored under two different temperatures (environmental temperature or refrigeration) and for 10, 20, and 30 days. Eggs were analyzed for: Haugh units (HU), albumen height (AH), yolk index (YI), and albumen index (AI). Parameters were only statistically influenced by the interaction between dietary treatment and storage time. It was concluded that the addition of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Organic trace minerals; Quails; Storage; Temperature.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000100006

Eggshell apex abnormalities in a free-range hen farm with mycoplasma synoviae and infectious bronchitis virus in Rio de Janeiro state, Brazil
Provedor de dados: 89
Autores: Santos,FC dos; Brandão,MDM; Silva,CC da; Machado,LS; Soares,MV; Barreto,ML; Nascimento,ER do; Pereira,VLA.
A farm with 3,000 free-range hens between 24 and 65 weeks of age was investigated. These hens were separated in small flocks of 400 to 700 birds, presenting 10 to 23% egg production reduction. Twenty serum samples were collected during the period of drop in egg production and three weeks later for the investigation of Mycoplasma synoviae (MS), M. gallisepticum (MG) and Infectious Bronchitis Virus (IBV) antibodies using ELISA. At the time of the second collection, egg production had resumed to normal levels; however, with 10.23% of the eggs showed eggshell abnormalities limited to the apex. Eggshell strength was significantly different between normal and those with eggshell apex abnormalities, but not other egg-quality parameters. ELISA tests showed that MS...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Mycoplasm; Egg defects; Egg abnormality; Economic loss.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200015

Effects of calcium levels and limestone particle size on the egg quality of semi-heavy layers in their second production cycle
Provedor de dados: 89
Autores: Pizzolante,CC; Saldanha,ESPB; Laganá,C; Kakimoto,SK; Togashi,CK.
A 112-day trial was carried out to evaluate the effect of dietary calcium level and limestone particle size on the egg quality of 288 Hy-Line Brown semi-heavy layers, with 83 weeks of age at the beginning of the experiment. A completely randomized experimental design was applied in a 2x3 factorial arrangement, with two dietary calcium levels (3.5 and 4.0%) e three limestone particle size compositions (100% fine limestone (FL), with 0.185mm; 30% coarse limestone (CL), with 2.83mm, + 70% FL, with 0.185mm; and 50% CL, with 2.83mm, + 50% FL, with 0.185mm), with six replicates of eight birds each. Mean geometric diameter and in-vitro solubility of the limestone sources were, respectively, 0.185mm and 18.7% for the fine limestone, and 2.83mm and 10.5% for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Eggshell quality; Layers; Levels; Minerals.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000200002

Bacteriological investigation of microorganisms (Salmonella sp. and other Enterobacteriaceae) in common quails (Coturnix coturnix) submitted to different forced-molting procedures
Provedor de dados: 89
Autores: Teixeira,RSC; Cardoso,WM; Lopes,ES; Rocha-e-Silva,RC; Albuquerque,AH; Horn,RV; Salles,RPR.
The aim of this study was to investigate the presence of Salmonella in common quails submitted to forced molting. A total of 240 quails were divided at 40 weeks of age into four groups: CG (control, quails not submitted to molting); FM (fasting method); WM (fed wheat midds ad libitum); and ZM (zinc oxide method). From each group, 10 cloacal swabs, 10 fecal samples, and 20 egg samples were collected before molting (two weeks) and after molting (two weeks). The microbiological procedures for Salmonella spp. identification were performed in four steps. The agglutination test, using somatic and flagellar antigens, was used to confirm Salmonella-suspected colonies. According to the methodology applied, none of the samples was positive for Salmonella spp. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Forced molting; Zinc oxide; Fasting; Wheat midds diet.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000100008

Occurrence of Salmonella sp in laying hens
Provedor de dados: 89
Autores: Gama,NMSQ; Berchieri Jr,A; Fernandes,SA.
This study was carried out to investigate the presence of Salmonella sp in flocks of white laying hens. In different farms, the transport boxes of twelve flocks were inspected at arrival for the presence of Salmonella. Four positive (A, B, L and M) and one negative (I) flocks were monitored at each four weeks using bacteriological examination of cecal fresh feces up to 52 weeks. Birds were also evaluated at 52 weeks, when 500 eggs were taken randomly, and at 76 weeks, after forced molt. Salmonella enterica serovar Enteritidis and S. enterica rough strain were isolated from the transport boxes of the four positive flocks (flocks A, B, L and M). Salmonella sp was not isolated from the transport boxes or from the feces after 76 weeks-old in flock I....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Feces; Laying hens; Salmonella.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000100002

Quality of Eggs from Layers Reared under Alternative and Conventional System
Provedor de dados: 89
Autores: Popova,T; Petkov,E; Ayasan,T; Ignatova,M.
ABSTRACT The study aimed to compare and assess some of the quality characteristics (morphology, colour of the yolk, total carotenoid content and fatty acid profile) of eggs obtained from hens reared conventionally or in alternative system having access to pasture. Twenty eggs of each rearing system were analysed for the above characteristics. The eggs obtained from the layer reared under the alternative system were significantly heavier than the conventional ones, displayed higher diameters of the albumen and albumen index, as well as increased diameter and weight of the yolk. On the other hand, their shell thickness and Haugh units were lower when compared to the eggs from conventionally reared hens. The colour of the eggs from the alternative system was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Alternative system; Conventional rearing; Colour; Fatty acids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000100317

Salmonella serovars in laying hen flocks and commercial table eggs from a region of São Paulo state, Brazil
Provedor de dados: 89
Autores: Freitas Neto,OC de; Galdino,VMCA; Campello,P L; Almeida,AM de; Fernandes,SA; Berchieri Júnior,A.
Salmonella spp. is the main originator of human foodborne diseases worldwide and is mainly transmitted by food containing eggs. In Brazil, as a result of the lack of studies and data collection very little is known about the prevalence of Salmonella spp. in laying hen flocks and commercial table eggs. Consequently the present study was elaborated and aimed at generating data about Salmonella spp. in part of the Brazilian egg production chain. Eight flocks of day-old chicks, eight flocks of adult laying hens (four vaccinated with bacterin against Salmonella Enteritidis and four unvaccinated) and commercial table eggs from four supermarkets were examined. Salmonella spp. was isolated in 50 % of the newly hatched chicks, 25 % of the adult flocks and 1.5 % of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella serovars; Laying hens; Chicks; Feces; Eggs.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200008

Study on the Efficiency of Grape Seed Meals Used as Antioxidants in Layer Diets Enriched with Polyunsaturated Fatty Acids Compared with Vitamin E
Provedor de dados: 89
Autores: Olteanu,M; Criste,RD; Panaite,TD; Bunduc,V; Panaite,CV; Ropota,M; Mitoi,M.
ABSTRACT The 4-week study was conducted with 180 Lohmann Brown layers (52 weeks of age). The layers were assigned to three groups (C, E1 and E2). The basal diet (group C) consisted mainly of corn, soybean meal and corn gluten, and contained 19% crude protein and 11.58 MJ/kg metabolizable energy. The diets for groups E1 and E2 differed from group C by the inclusion of 5% flax meal and of dietary antioxidants. The concentration of α-linolenic acid in the fat of E1 and E2 diets was almost 10 times higher than in group C. E1 diet was supplemented with vitamin E (100 mg/kg feed, DM), while E2 diet was supplemented with 2% grape seed meal (polyphenols: 630.890 µg gallic acid equivalents/g sample; flavonoids: 5.065 µg rutin equivalents/g sample; antioxidant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; PUFAs; Antioxidants; Grape seed meal; Quality.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400655

Immatures of Epilachna Chevrolat (Coleoptera, Coccinellidae, Epilachninae)
Provedor de dados: 92
Autores: Casari,Sonia A.; Teixeira,Edson P.
Description of the pupa and redescription of the larva of Epilachna vigintioctopunctata (Fabricius), collected for the first time on Brugmansia suaveoleus (Humb. and Bonpl. ex Willd.) Bercht. and J. Presl (Solanaceae) (trombeteiro), in the state of São Paulo (Brazil), is presented. The diagnoses of the described pupae of E. clandestina (Mulsant), E. paenulata (Germar) and E. spreta (Mulsant), based on specimens examined, and that of E. cacica Guérin, based on the literature, are presented. A comparison among the known larvae and pupae of this genus is also presented. This is the first description of immatures of E. vigintioctopunctata from the Western Hemisphere.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Neotropical region; Pupae illustrations.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000200113

Two new species of Emersonella (Hymenoptera: Eulophidae: Entedoninae) from the Brazilian Atlantic Forest
Provedor de dados: 103
Autores: Alvarenga,Thiago M.; Costa,Valmir A.; Hansson,Christer; Carvalho,César F.
Emersonella Girault, 1916 is a wasp genus including species that parasitize Chrysomelidae (Coleoptera) eggs, mainly Cassidinae. It occurs only in the Americas, and is primarily distributed in the Neotropical Region. In this paper two new species of Emersonella from the Atlantic Forest of southeastern Brazil are described and compared to similar species. Emersonella appendigastersp. nov. is characterized by an elongate last gastral tergite in female, thoracic dorsum flat, femora and tibiae yellowish in female, malar sulcus absent, frontal suture slightly down-curved laterally, eyes with scattered hairs, frons and vertex smooth, and propodeum smooth with small anteromedian foveae. Emersonella frieirocostaisp. nov. is characterized by an elongate gaster in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cassidinae; Eggs; Endoparasitoids; Host specificity; Solanaceae.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200145

Effect of dietary levels of methionine + cystine on performance of broiler breeders
Provedor de dados: 96
Autores: Gomes,Paulo Cezar; Lima,Cristina Amorim Ribeiro de; Calderano,Arele Arlindo; Rostagno,Horacio Santiago; Albino,Luiz Fernando Teixeira.
The objective of this experiment was to evaluate levels of methionine + cystine levels for broiler breeders from 40 to 60 weeks of age. It was used 288 Cobb broiler breeders, distributed in a randomized experimental design with six levels of methionine+ cystine in the diets (0.39; 0.47; 0.55; 0.63; 0.71 and 0.79%), eight repetitions and six breeders per experimental unit. The diets were isocaloric and isoprotein (2,850 kcal ME/kg and 12.58% CP) and oferred at a fixed amount (155 g) per bird. For the entire studied period, by using polynomial analysis, it was observed a quadratic effect of methionine + cystine levels on the percentage of egg production, on number of eggs per hen housed, on number of eggs per hen and egg weight. There was also a linear...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Requirement; Sulfur amino acid.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000500011

Reduction of the nutritional values of diets for hens through supplementation with phytase
Provedor de dados: 96
Autores: Lima,Matheus Ramalho de; Costa,Fernando Guilherme Perazzo; Givisiez,Patrícia Emília Naves; Silva,José Humberto Vilar da; Sakomura,Nilva Kazue; Lima,Denise Fontana Figueiredo.
The aim of this work was to evaluate the effects of the reduction on nutritional levels of diets for semi-heavy hens during the laying peak on performance, egg quality and bone parameters. A total of eight diets were evaluated, each one with five repetitions of eight birds: 1) control: formulated to supply requirements by the birds; 2) control + 0.03% or 600 FTU; 3) 15% crude protein; 2,800 kcal ME; 3.8% Ca and 0.28% aP; 4) diet 3 + 0.03% or 600 FTU; 5) 14% crude protein; 2,750 kcal ME; 3.4% Ca and 0.23% aP; 6) diet 5 + 0.03% or 600 FTU; 7) 13% crude protein; 2,700 kcal ME; 3.0% Ca and 0.18% aP; and 8) diet 7 + 600 FTU. The reduction of the nutritional levels harmed the performance of the birds, particularly egg production and egg mass, which improved by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bone health; Eggs; Laying hens; Performance.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001000016

Cooling of curimba (Prochilodus lineatus) embryos using different concentrations of dimethyl sulphoxide and methanol
Provedor de dados: 96
Autores: Machado,Gilmara Junqueira; Murgas,Luis David Solis; Palhares,Priscila Cotta; Assis,Isadora de Lima; Castro,Tássia Flávia Dias.
ABSTRACT This study aimed to evaluate the effect of using different concentrations (5, 7.5, 10, and 12.5%) of two permeating cryoprotectants, dimethyl sulphoxide (DMSO) and methanol, on Prochilodus lineatus embryos while being subjected to cooling for 2, 4, 6, and 8 h at 4 °C. We analyzed the hatching rate, viable larvae, and counts of hatched and spoiled eggs and those that did not complete their development after cooling. We observed a significant interaction among variables, permeable cryoprotectant concentration, and cooling time, having the increase of these factors caused a reduction in hatching rate. The curimba embryos showed a higher sensitivity to cold at a temperature of 4 °C for 6 and 8 h, directly influencing the production of viable larvae....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Biotechnology; Cryopreservation; Eggs; Fish; Larvae.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100155

Comparison on animal production in organic and conventional systems
Provedor de dados: 195
Autores: Rossi, Gabriel Augusto Marques; Lemos, Paulo de Paula Lopes.
The market for organic products is increasing globally, seeking to fulfill the needs and expectations of consumers who believe it’s a healthier food. There are many controversies found in studies that assess primarily the physical-chemical, microbiological and the presence of this type of food of animal origin. This review aimed to evaluate the main differences between animal foods such as meat, milk, honey, eggs and fish produced in organic systems compared to those produced in conventional systems. The main differences are related to the physical-chemical food and no relevant differences were found between the possible presence of chemical or biological hazards in food of animal origin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal products; Eggs; Fish; Food; Honey; Meat Alimentos; Carne; Leite; Ovos; Mel; Pescado.
Ano: 2013
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/5369

Oviposicão, tamanho de ovos e medida do comprimento da concha em diferentes fases do desenvolvimento de Subulina octona (Breguiére) (Pulmonata, Subulinidae) em condições de laboratório
Provedor de dados: 104
Autores: Bessa,Elisabeth C. de Almeida; Araújo,José L. de Barros.
The study of 41 individually specimes of Subulina octona (Bruguiére. 1789) during 182 days indicated that oviposition occur between 10pm and 10am. The interval between ovipositions was from seven to 31 days. In the eggs, the greatest axis was 1.5-2.0mm while the smallest was 1.2-1.6mm. The lenght of shell of recently ecloded snails was 1.3-1.8mm. The growth rale of adult snails was measured and they grew more in the first 45 days than in the last 75 days subsequent of the study.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pulmonata; Subulinidae; Subulina octona; Oviposition; Eggs.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300020

Postura, desenvolvimento e eclosão dos ovos de Dolops carvalhoi Lemos de Castro (Crustacea, Branchiura) em laboratório, parasita de peixes da Amazônia Central
Provedor de dados: 104
Autores: Gomes,Ana Lúcia Silva; Malta,José Celso de Oliveira.
Dolops carvalhoi Lemos de Castro, 1949 was found infesting fish in a fish culture station located in highway AM-010 Manaus-ltacoatiara in the State of Amazonas. Egg laying of D. carvalhoi was studied. Hatching started after 16 days in a temperature span of 26 to 28ºC. Eggs were laid in clusters on hard substrata and covered by a gelatinous material. The number of eggs was 16 to 392 eggs by laying. In the postembryonic development the larvae were hatched from the egg as juveniles (epimorphic development), very similar to the adult shape.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Argulidae; Dolops carvalhoi; Laying; Eggs; Fish parasites; Amazon.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000600013

Nesting and neonates of the yellow-spotted river turtle (Podocnemis unifilis, Podocnemididae) in the Araguari River basin, eastern Amazon, Brazil
Provedor de dados: 36
Autores: Arraes,Débora Regina dos Santos; Tavares-Dias,Marcos.
Predation and alteration of microhabitats may represent high risk for nesting of Amazonian turtles. This study aimed at investigating the nesting and body parameters of neonates of Podocnemis unifilis in the Araguari River basin, State of Amapá, Brazil. The spawning sites of this turtle were monitored along the Falsino River (a region with two reserves) and in the urban area of the Porto Grande city along the Araguari River, from August to December 2011. A total of 180 nests were found and the nesting occurred from September to November, with prevalence in October. Eggs hatching occurred in December. The mean incubation period was 63.5 ± 5.2 days and the eggs hatching success was 25%. However, approximately 80% of the nests had suffered predation mainly by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body condition; Chelonian; Eggs; Predation.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000300012

ANTHROPOGENIC IMPACTS ON YELLOW-SPOTTED RIVER TURTLE Podocnemis unifilis (REPTILIA: PODOCNEMIDIDAE) FROM THE BRAZILIAN AMAZON
Provedor de dados: 37
Autores: Santos ARRAES,Débora Regina; Albuquerque CUNHA,Helenilza Ferreira; TAVARES-DIAS,Marcos.
The purpuse of this study was to investigated the influence of anthropogenic impacts on Podocnemis unifilis nesting on a stretch from Falsino river, with two forest reserves, and one urban area on the Araguari river, state of Amapá, eastern Amazon (Brazil). A total of 180 nests were found, being 89.4 % in the forest reserves and only 10.6 % in urban areas. On Falsino river, we observed a spawning pattern, because the number of nests was correlated to the length and width of the nesting locations. On Araguari river, the P. unifilis nests were generally found in areas with surrounding vegetation up to 5 meters in height, minimum distance of 120 meters from residences and immediately or after places of higher exploration of pebbles. Females from Falsino river...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Eggs; Freshwater turtle; Neonates; Nests.
Ano: 2016
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000200009

Whole rice in japanese quails’ diet
Provedor de dados: 2
Autores: Gopinger, Edenilse; Moraes, Priscila de Oliveira; Catalan, Aiane Aparecida da Silva; Xavier, Eduardo Gonçalves; Castro, Martha Lopes; Schafhäuser Junior, Jorge.
A trial was conducted to evaluate the use of dehulled and unpolished whole rice in Japanese quails’ diet. A total of 100 80-days-old Japanese quails (149.07 ± 10 g) were distributed in five treatments: 0% dehulled and unpolished whole rice (control diet based on corn and soybean meal), 20, 40, 60, and 80% of whole rice in replacement of corn; respectively, treatments 1, 2, 3, 4, and 5. Productive performance was evaluated through egg production (%), egg weight (g), body weight (g), egg mass (g), feed conversion per egg mass and feed conversion per dozen eggs. The following variables measured the internal quality of eggs: albumen height (mm), yolk color and percentage, egg white percentage and Haugh units. The external quality of eggs was measured through...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative feedstuff; Eggs; Nutrition; Quail production.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24504

Chemical characteristics and thickness of Podocnemis expansa post-hatching eggshells (Testudines, Podocnemididae)
Provedor de dados: 3
Autores: Ferreira, Caio Henrique; Vieira, Lucélia Gonçalves; Valdes, Sady Alexis Chavauty; Mendonça, Juliana dos Santos; Fernandes, Evandro de Abreu; Santos, André Luiz Quagliatto.
Knowledge on chemical components of the post-hatching eggshell of reptiles may provide indicators of the quality of the diet offered to females kept in captivity. Therefore, the objective of this study was to investigate the chemical characteristics of the calcareous layer, as well as the thickness of Podocnemis expansa post-hatching eggshells. Eggshell thickness was 183±1.405 µm. This value is similar to that of the eggs of other Testudines with flexible eggshells. As for the chemical composition, the following percentages were observed: nitrogen 7.983 ± 0.054; crude protein 49.91 ± 0.324; crude fat 0.068 ± 0.002; mineral matter 20.302 ± 0.807; calcium 13.374 ± 0.647; and phosphorus 0.176 ± 0.003. Knowledge on chemical composition of the eggshell may aid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical characteristics; Thickness; Eggshells chemical composition; Eggs; Limestone layer; Amazon turtle Physiology of reptiles.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/28019

First data on dinosaur eggs and clutches from Pinyes locality (Upper Cretaceous, Southern Pyrenees)
Provedor de dados: 41
Autores: Vila,Bernat; Jackson,Frankie; Galobart,Àngel.
We describe a new megaloolithid locality discovered near Coll de Nargó (Catalonia, northeastern Iberian Peninsula). Eggs at the Pinyes site occur within extensively developed, vertically-stacked paleosols of an alluvial system. Eight clutches were excavated and mapped and biological and taphonomic aspects recorded. Three-dimensional maps were constructed using a Trimble total station, supplementing traditional planview mapping to allow more accurate interpretation of egg and clutch distribution. The Megaloolithus siruguei eggs are compressed, presenting an ellipsoidal shape. The three-dimensional geometry of two large clutches suggests that the eggs were laid in shallow, bowl-shaped depressions. Tangential thin sections of eggshells also reveal abundant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Megaloolithidae; Eggs; Clutches; 3D reconstruction; Pyrenees; Excavated pits.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142010000100005

Age influence on quality of shell and penetration in bacterial laying lightweight eggs
Provedor de dados: 45
Autores: Smaniotto,B.D.; Amarante,A.F.; Altarugio,R.; Silva,I.G.O.; Corrêa,I.M.O.; Pereira,L.Q.; Sartori,M.M.P.; Andreatti Filho,R.L.; Guimarães-Okamoto,P.T.C.; Okamoto,A.S.
ABSTRACT This study evaluated the influence of the bird’s age on the quality of the shell and percentage of bacterial penetration in commercial eggs. White-shelled commercial eggs were used, laid by light laying hens in their first laying cycle at 21, 39, 51, and 62 weeks of age. Shell quality evaluations comprised: egg weight, specific gravity, percentage and thickness of shell, number and size of pores. For evaluations regarding bacterial penetration, strains of several enterobacterias and one salmonella were used, all of which resistant to Nalidixic acid (100µg/ml). The method employed for evaluation of bacterial penetration was filling the eggs with growth medium. The data were subjected to variance analysis with 5% of probability using SAS (Education...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Poultry; Bacterial contamination; Eggs; Enterobacteria.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000501301

Chlorinated drinking water for lightweight laying hens
Provedor de dados: 45
Autores: Schneider,A.F.; Almeida,D.S.; Moraes,A.N.; Picinin,L.C.A.; Oliveira,V.; Gewehr,C.E.
ABSTRACT The study aimed to evaluate the effect of different levels of chlorine in drinking water of laying hens on zootechnical performance, eggs shell quality, hemogasometry levels and calcium content in tibia. 144 Hy-Line laying hens, 61 weeks old, were used distributed in 24 metabolism cages. They were subjected to water diets, for a period of 28 days, using sodium hypochlorite as a chlorine source in order to obtain the following concentrations: 5ppm (control), 20ppm, 50ppm, and 100ppm. Their performance was evaluated through water consumption, feed intake, egg production and weight, egg mass, feed conversion. Shell quality was measured by specific gravity. At the end of the experiment, arterial blood was collected for blood gas level assessment and a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorine; Eggs; Hemogasometry; Posture; Shell.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000601690

Reproductive performance of the Mesa silverside (Chirostoma jordani Woolman, 1894) under natural and controlled photoperiods
Provedor de dados: 47
Autores: Arredondo-Figueroa,José Luis; Núñez-García,Laura Georgina; Heredia-Guzmán,Paloma Adriana; Ponce-Palafox,Jesús T.
Chirostoma jordani is a native annual species inhabiting lacustrine waters of the Central Mexico Plateau. It is widely distributed and is currently facing high environmental pressures. Five experiments were performed to study the reproductive performance of this species. Four of the experiments were conducted in 270-L indoor recirculation tanks. Two males and one female at the first stage of reproduction were included in each test. A photoperiod of 14 light hours and 10 dark hours was used. In a fifth experiment, 10 females and 15 males were kept in an outdoor 3,000-L recirculation tank under natural photoperiod. The number of spawns, fertilised eggs and 30-day-old juveniles were counted and the survival rate was calculated. The results indicated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding; Atherinopsidae; Eggs; Juveniles; Survival rate.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452012000300002

Reproductive biology of Synallaxis albescens (Aves: Furnariidae) in the cerrado of central Brazil
Provedor de dados: 49
Autores: Marini,Miguel Ângelo; Rodrigues,Sheila Silva; Silveira,Mariana Batista; Greeney,Harold Francis.
Understanding the causes and consequences of variation in reproductive strategies is a central theme in studies of avian life history evolution. This study describes the reproductive biology of Synallaxis albescens (Furnariidae) in the cerrado biome of central Brazil. We monitored 35 nests during the 2003 to 2011 breeding seasons, visiting them every 2-4 days. Synallaxis albescens breeds from mid-September to mid-January, builds a retort-shaped nest, and generally lays three immaculate white eggs. Eggs weighed 1.75 g and measured 19.7 by 14.4 mm. Most nests studied were in open cerrado or shrub grassland at an average height above the ground of 0.3 m, with a preference for Davilla elliptica (Dilleniaceae) shrubs as a nesting substrate. Incubation period...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nests; Eggs; Reproduction; Reproductive success.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400029

Extracts of Ascaris suum egg and adult worm share similar immunosuppressive properties
Provedor de dados: 56
Autores: Souza,V.M.O.; Faquim-Mauro,E.L.; Macedo,M.S.
Adult Ascaris suum body extract (Asc) prepared from male and female worms (with stored eggs) down-regulates the specific immune response of DBA/2 mice to ovalbumin (OA) and preferentially stimulates a Th2 response to its own components, which is responsible for the suppression of the OA-specific Th1 response. Here, we investigated the participation of soluble extracts prepared from male or female worms or from eggs (E-Asc) in these immunological events. Extracts from either sex (1 mg/animal) or E-Asc (0.35 or 1 mg protein/animal) suppressed the delayed-type hypersensitivity (DTH) reaction (60-85%), proliferative response (50-70%), IL-2 and IFN-gamma secretion (below detection threshold) and IgG1 antibody production (70-90%) of DBA/2 mice to OA. A dose of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascaris suum; Immunosuppression; Adult worms; Eggs; Cytokines.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000100012

Campylobacter sp in eggs from cloacal swab positive breeder hens
Provedor de dados: 58
Autores: Fonseca,Belchiolina Beatriz; Soncini,Ricardo Alfredo; Gimarães,Adelia Rodrigues; Rossi,Daise Aparecida.
Campylobacter sp is a microaerophilic, thermotolerating Gram negative bacterium, known to be one of the main causes of food-borne human infections. Among the foods that carry these microorganisms, the chicken is outstanding. In Brazil, a large chicken exporting country, few researches are conducted about their prevalence in breeder hens and the transmission through eggs. The aim of this research was to verify the presence of Campylobacter sp in the shells and within the eggs from positive cloacal swab breeder hens. Microbiological analyses were made on cloacal swabs of 140 weighed breeder hens. The positive breeder hens were set aside and in a total of 244 of their eggs, Campylobacter sp was present in macerated shells and yolk contents during 7 weeks. Out...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campylobacter; Eggs; Chicken; Vertical transmission; Epidemiology.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400032

Occurrence of Salmonella sp. and coagulase-positive staphylococci in raw eggs and Coalho cheese: comparative study between two cities of Brazil's northeast
Provedor de dados: 58
Autores: Evêncio-Luz,L; Lima-Filho,J.V.; Evêncio-Neto,J.
Microbiological analyses of chicken eggs in Recife and Salvador have shown a high occurrence of Salmonella in the egg shells and yolks. Likewise, the occurrence of Salmonella plus coagulase-positive staphylococci in Coalho cheese reached alarming levels. The data revealed a significant risk of infections and intoxications from consuming these foods in the cities.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella; Staphylococcus; Coalho cheese; Eggs.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400030

Salinity on artificial reproduction of silver catfish (Rhamdia quelen)
Provedor de dados: 65
Autores: Martins,Gabriel Bernardes; Piedras,Sérgio Renato Noguez; Pouey,Juvêncio Luís Osório Fernandes; Bongalhardo,Denise Calisto; Robaldo,Ricardo Berteaux.
Attempting to improve reproduction performance and ichthyo prophylaxis, this study evaluated the effects of maintaining silver catfish (Rhamdia quelen) broodstock in different saline concentrations (0, 2, 4, 6 and 8‰) on gametes quality and reproductive viability. The results showed that sperm percent motility did not change between 0 and 4‰, but it was reduced at 6‰, and sperm became immotile at 8‰ salinity. Sperm motility time was increased (almost five fold) at 6‰. Salinities up to 4‰ prevented fertilization and hatching, proving their deleterious effects on oocytes and embryos. Therefore, media up to 4‰ salinity may be an alternative for icthyo prophylaxis, although fertilization and incubation must be done in freshwater medium
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Semen; Motility; Eggs; Fertilization; Salt.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000300458