Consulta: subjectFacets:"Rearing"
Registros recuperados: 62
Data/hora: 10/06/2024 13:37:32

USING SOUNDS PRODUCED BY PIGS TO IDENTIFY THERMONEUTRALITY ZONES FOR THERMAL ENVIRONMENT ASSESSMENT RATIOS
Provedor de dados: Engenharia Agrícola
Autores: Amaral,Pedro I. S.; Campos,Alessandro T.; Yanagi Junior,Tadayuki; Cecchin,Daiane; Leite,Evandro M.; Dias e Silva,Nhayandra C.
ABSTRACT Although dry bulb temperature (T) is the environmental variable most commonly used to classify thermal comfort in pigs, environmental assessment ratios provide more accurate information. The objective of this study was to correlate the sound pressure levels (SPL) produced by piglet vocalization with the thermal environment observed during the nursery phase, and subsequently establish thermoneutrality ranges. The experiment was conducted on a pig farm where T, relative humidity (RH), and SPL data were recorded between 9 am-5 pm for 42 days. The association between SPL and T in nursery phase piglets was verified; for thermal comfort to be possible, SPLs were 56.3 to 60.3 dB. The SPLs were subsequently used in predictor equations of ratios, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ambience; Animal welfare; Nursery; Rearing; Thermal comfort.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300266

Recria de bovinos de corte em pastos de capim-humidícola consorciados com amendoim forrageiro no Estado do Acre.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SALES, M. F. L.; ASSIS, G. M. L. de; ANDRADE, C. M. S. de; SÁ, C. P. de; MESQUITA, A. Q. de; VALENTIM, J. F.
Pesquisas comprovam que o uso de leguminosas em consórcio com gramíneas pode reduzir os gastos diretos com fertilizantes e suplementos proteinados, aumentar a qualidade da dieta consumida pelos animais, melhorar a disponibilidade de forragem e ampliar o período de utilização das pastagens. Nesta publicação serão apresentados os resultados de experimentos conduzidos em fazenda comercial, no estado do Acre, mostrando a superioridade do desempenho produtivo de bovinos da raça Nelore e cruzados meios-sangues Nelore e Aberdeen Angus, na fase de recria, em pastos de capim-humidícola consorciados com amendoim forrageiro 'BRS Mandobi'.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Amendoim forrageiro; Forage peanut; Cacahuetes forrajeros; Arachis pintoi cv BRS Mandobi; Gado Aberdeen Angus; Producción animal; Criando (animales); Nutrición animal; Cultivo mixto; Pastos forrajeros; Leguminosas forrajeras; Fazenda Guaxupé (AC); Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Produção Animal; Recria; Gado de Corte; Gado Nelore; Gado Polled Angus; Nutrição Animal; Pastagem Consorciada; Gramínea Forrageira; Capim Quicuio; Brachiaria Humidicola; Leguminosa Forrageira; Rendimento; Animal production; Rearing; Beef cattle; Nellore; Animal nutrition; Mixed cropping; Forage grasses; Urochloa humidicola; Forage legumes.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1127108

Effects of age and environment on the summer mortality in cupped oyster Crassostrea gigas during the first two years
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Degremont, Lionel; Boudry, Pierre; Soletchnik, Patrick; Bedier, Edouard; Ropert, Michel; Samain, Jean-francois.
Three successive generations were produced between 2001 and 2003 to assess to what extent genetic variability exists for survival in juvenile oysters Crassostrea gigas. For each generation, two groups were selected for their high ("R" for resistant) and low ("S" for susceptible) survival. Significant differences in mortality were observed during the first year in Riviere d'Auray (RA) (Brittany-France). However, low and similar mortality were observed for both groups, with no significant difference between groups in the first and second generation in this site, where the first summer is the critical, sensitive period with a clear age effect. In Baie des Veys (BDV) (Normandie-France), where mortalities usually mainly affect adults, mortality between groups,...
Tipo: Text
Palavras-chave: Crassostrea gigas; Spat; Spatial variations; Survival; Rearing; Mollusc culture; Marine molluscs; Environmental factors; Nursery grounds; Mortality causes; Biological age; Aquaculture techniques.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-3385.pdf

Etat d'avancement des travaux sur les poissons tropicaux en Martinique
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Soletchnik, Patrick; Thouard, Emmanuel; Galllet De Saint-aurin, D.; Suquet, Marc; Hurtaud, P.; Mesdouze, J. P.
Ce document se compose de 3 publications :  - overview of the studies conducted on the finfish, Palometa (Trachinotus goodei), in Martinique,  - spawning of palometa (Trachinotus goodei), in capacity, - spawning of yellowtail snapper (Ocyurus chrysurus ; Bloch, 1791) in capacity.  Cette dernière publication, résume l'essentiel des informations obtenues sur la sarde et présentées d'une façon exhaustive dans le document scientifique n°9.  Les 2 premières publications de ce document, consacrées à la carangue, font état des derniers résultats acquis sur cette espèce.
Tipo: Text
Palavras-chave: Aquaculture; Poissons tropicaux; Elevage; Maturation; Reproduction; Trachinotus goodei; Ocyurus chrysurus; Martinique; Aquaculture; Tropical finfishs; Rearing; Maturation; Reproduction; Trachinotus goodei; Ocyurus chrysurus; Martinique.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00131/24262/22258.pdf

Elevage intensif du loup Dicentrarchus labrax
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Coves, Denis; Gasset, Eric.
Different seabass (Dicentrarchus labrax) intensiv rearing technics have been experimented in the pilot scale unit of our laboratory. During these upscalfing operation, the results obtained allow us to compare costs related to each fingemng production method. Closed system combined with early weaning with an efficient micropellet saves at least 69 % of direct production costs by comparison with an open system with Arternia during larval phase. However if closed systems are commonly used by private hatcheries, larval micropellets are always at experimental step.
Tipo: Text
Palavras-chave: Production cost; Early weaning; Closed system; Intensiv; Rearing; D. Labrax; Coût de production; Sevrage précoce; Recyclage; Intensif; Elevage; D. Labrax.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/rapport-1916.pdf

Traditional oyster culture in France
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Heral, Maurice.
The indigenous oyster of mainland France, the fiat oyster, Ostrea edulis has been part of the human diet for centuries. The Romans collected them and exported them to Rome. Although tanks for holding oysters after harvesting were in use at that time (GreIon 1978) it seems that true culture was not developed along the coast contrary to the records of Pliny the Older. It appears that oysters were already being captured on hoards off the Italian coast. The exploitation of natural stocks continued through the Middle Ages and the Renaissance. However, it was not until the 17th century that oyster culture began, first in the pools of the salt marshes of the Atlantic coast and then in specially managed ponds. Papy (1941) repeats a good description given in 1688...
Tipo: Text
Palavras-chave: Rearing; Diseases; Analytical model; Overall model; Cultured stocks; Energetics; Reproduction; Nutrition; Physiology; France; Culture; Oyster.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/publication-3039.pdf

Influence of turbulence and turbidity on growth and survival of laboratory-reared bivalve larvae
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Seaman, Matthias; His, Edouard; Keskin, Mehmet; Reins, Torsten.
Laboratory-reared larvae of mussels (Mytilus galloprovincialis ) were incubated with and without sediment in a novel turbulence-producing machine. The sediments used were fine silt from the Gironde Estuary and from the German Wadden Sea. Larvae incubated in turbulence without sediment, and in suspended sediment concentrations similar to in situ conditions had growth rates which did not vary significantly from those of the controls. The growth rates of larvae incubated in 5 to 20 g/l of sediment were reduced by 20 to 50%. Survival was lower in larvae incubated with sediments than in turbulent and non-turbulent controls, but it was not correlated with sediment concentration. The results indicate that the mechanical effects of turbulence and turbidity on...
Tipo: Text
Palavras-chave: Controlled conditions; Environmental factors; Growth; Mollusc culture; Rearing; Survival; Turbidity; Mytilus galloprovincialis.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00038/14902/12228.pdf

Ecologie bacterienne dans les bacs d'elevage larvaire de coquilles Saint-Jacques (Pecten maximus )
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Jacq, E; Moal, Jeanne; Samain, Jean-francois; Corre, S; Daniel, J; Nicolas, Jean-louis; Cochard, Jean-claude; Fera, P.
Larval rearings were performed with seawater either freshly pumped or after storage in a pond. Concerning bacterial populations these waters were characterized by a high diversity, little sized bacteria whose few of them (1%) were cultivable on Zobell medium. In the tanks, the bacterial ecosystem was modified by the presence of antibiotics, larvae and algae: the diversity was lowered, the cellular volume was increased by a factor 2 to 5, 100% bacteria were cultivable and chloramphenicol resistant, and their metabolism changed. Taxonomic screening showed no differences among the two waters neither at the beginning nor at the end of the rearings. However, depending on the water (stored or not) differences were identified for bacterial physiology and...
Tipo: Text
Palavras-chave: Marine aquaculture; Pond culture; Scallop culture; Ecology; Antibiotics; Organic matter; Grazing; Carbohydrates; Mathematical models; Modelling; Growth; Bacterial diseases; Biological production; Culture tanks; Larvae; Rearing.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-914.pdf

Selection of finfish species for aquaculture development in Martinique (FWI).
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
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

Aquaculture of edible species in French Polynesia
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Patrois, Jacques.
In French Polynesia, the research on rearing edible species has began in 1971. The aims were: to develop the local production of sea foods to satisfy the domestic market and to create new activities and employments in rural areas.
Tipo: Text
Palavras-chave: Penaeus stylirostris; Penaeus indicus; Penaeus monodon; Macrobrachium rosenbergii; Perna viridis; Crassostrea rhizophorae; Saccostrea echinata; Mollusca; Prawn culture; Shrimp culture; Rearing; Marine fish; Marine molluscs; Marine crustaceans; Freshwater crustaceans; Aquaculture.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1450.pdf

The culture of Hoplosternum littorale : State of the art and perspectives
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Luquet, P; Boujard, Thierry; Planquette, P; Moreau, Y; Hostache, G.
Hoplosternum littorale is a siluriform fish of very high commercial value in some countries of South America. Some biological characteristics as easy spawning in confinement and good tolerance of low oxygen level make it easy to cultivate.
Tipo: Text
Palavras-chave: Fish ponds; Incubation; Brood stocks; Circadian rhythms; Sexual maturity; Sex ratio; Rearing; Respiration; Survival; Diets; Larvae; Fecundity; Hatching; Oxygen; Feeding behaviour; Fish culture.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1491.pdf

Production of live prey for marine fish larvae
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Kraul, S.
Tropical marine fish larvae vary in their requirements for live planktonic food. Selection of live prey species for culture depends on larval size and larval tolerance of water quality. This report describes some of the cultured prey species, and their uses and limits as effective food for fish larvae. Methods are presented for the culture of phytoplankton, rotifers, copepods, and other live feeds.
Tipo: Text
Palavras-chave: Brine shrimp culture; Diets; Prey selection; Food organisms; Feeding; Growth; Rearing; Nutritional requirements; Fish larvae; Marine fish; Tropical fish.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1443.pdf

Croissance de l'huitre japonaise Crassostrea gigas en cylindre rotatif Stanway. Premiers resultats en France
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Robert, Rene; Maurer, Daniele.
A new method of oyster cultivation, the Stanway oyster cylinder, has been experimented in the basin of Arcachon since the autumn of 1989. The first observations on three species of juvenile bivalves showed that this system could be successfully used with the Japanese oyster Crassostrea gigas . A comparative study of the growth of this last species, reared in cylinders and oyster bags, has been carried out since spring 1990. The first results showed that the growth of juveniles and 18 months old oysters in cylinders is not as good as in bags. On the other hand, mortality did not differ between both techniques: less than 3%. This new system seems to be less efficient than the traditional French way of rearing oysters. However, an improvement in the quality...
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Juveniles; Oyster culture; Growth; Rearing.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-917.pdf

Influence du taux de proteines sur la croissance ponderale de Palaemon serratus (Pennant) elevee au laboratoire
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Campillo, Albert; Luquet, P.
The quantitiative requirements for protein have been determined in P. serratus reared from the post-larval stage to the 4th month. It appears that the apparent optimum percentage of protein in the diet is a minimum of 60%. At the 8th month, the mean wt of prawn reared with the best artificial diet (diet IV) is only 49% of the wt of shrimp reared with the digestive gland of Patella as a diet. The prawns reared to 4th month on a low-protein diet then reared on a natural diet until the 8th month, show important compensatory growth. However, the prawns do not achieve the wt of the control population, their average wt representing only 16% of the controls.
Tipo: Text
Palavras-chave: Crangon crangon; Penaeus japonicus; Homarus vulgaris; Palaemon serratus; Nutritional requirements; Growth; Proteins; Artificial feeding; Crustacean culture; Laboratory culture; Rearing.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-2029.pdf

Un essai de grossissement en captivite de la tortue verte Chelonia mydas realise a Tahiti (Polynesie Francaise)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Lebeau, Alain.
A small batch of green turtle hatchlings, Chelonia mydas , have been raised in captivity at the "Centre Oceanologique du Pacifique", in Tahiti from 1983 to 1984. Observations on growth and rearing conditions are reported. This experiment shows the technical feasibility of this type of aquaculture in French Polynesia. The economical aspect is considered. Forty-six young green turtles between one- and two-years-old have been tagged and released in the neighboring Mehetia Island (French Polynesia).
Tipo: Text
Palavras-chave: Chelonia mydas; Reptilia; Hatching; Rearing; Growth; Artificial feeding; Turtle culture.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-1798.pdf

Ascophrys rodor (Campillo and Deroux) parasite of the reared common prawn P. serratus).
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Deroux, G.; Campillo, Albert; Bradbury, Ph. C.
A disease whose severity seems directly bound to conditions of cultivation can cause a heavy mortality in the common prawn Palaemon serratus (Pennant) at molting. The causative agent, A. rodor, is a ciliate, a common external parasite whose life cycle is adapted to the molting cycle of the shrimp. The principal factors favorable to the development of the parasite were studied: age of the host, water temp, numbers of shrimps as a function of the quantity of water and its renewal. The sp A. rodor, although related to the Conidophryidae, Kirby, 1941 (1936) has significant differences (1) in its ethology (it feeds on the exoskeleton without penetrating to its hosts' tissues), (2) in its vegetative multiplication (tomitogenesis combines the cortical...
Tipo: Text
Palavras-chave: Askoella heliostoma; Askoella janssoni; Conidiphrys; Terebrospira lenticularis; Palaemon varians; Palaemon serratus; Ascophrys rodor; Parasitic diseases; Parasites; Rearing.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-2026.pdf

Relance de l'huître plate. Rapport d'avancement des travaux 1988.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: IFREMER (LA TRINITE/MER - LA TREMBLADE).
Un contrat de Plan État-Région Bretagne a été signé en 1983 pour financer des recherches sur la période 1984-1988 dans le but de permettre la relance de l'élevage de l'huître plate, à la suite de la deuxième épizootie due à un protozaire, Bonamia ostreae. Ce rapport présente les travaux réalisés et les résultats acquis durant l'année 1988, dans les domaines de la pathologie (étude de la maladie et des mécanismes de défense des mollusques) de la génétique (recherche de souches résistantes), de l'épidémiologie descriptive et de la zootechnie.
Tipo: Text
Palavras-chave: Bivalves; Ostrea edulis; Bonamia ostreae; Épidémiologie; Pathologie; Immunologie; Échantillonnage; Élevage; Shellfish; Ostrea edulis; Bonamia ostreae; Epidemiology; Pathology; Immunology; Sampling; Rearing.
Ano: 1989
URL: https://archimer.ifremer.fr/doc/00342/45284/44749.pdf

Enzymatic polymorphism study as help for constitution of initial broodstock for a new cultivated finfish species.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Renno, J; Luquet, P.
Leporinus friderici is a South American promising species for fish culture. In French Guiana the "morphological species", L. friderici, L. granti, L. lebaili and L. affinis steyermarki are found. Their identification is sometimes difficult on usual criterion. To constitute an initial broodstock of L. friderici from local wild populations, the genetic structure of these species was studied. Fifteen enzyme systems, representing twenty loci, were screened.
Tipo: Text
Palavras-chave: French Guiana; Leporinus; Leporinus granti; Leporinus friderici; Anostomidae; Pisces; Embryos; Mortality; Genetics; Freshwater fish; Rearing; Breeding; Biopolymorphism; Brood stocks; Enzymatic activity.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1441.pdf

Shrimp aquaculture in New Caledonia
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Galinie, C.
In New Caledonia, there is no indigenous shrimp species for commercial aquaculture and it is necessary to control the complete cycle in captivity. Since 1973 and the creation of the Station d'Aquaculture de Saint-Vincent (S.A.S.V.), a joint project between IFREMER, France-Aquaculture and the territory of New Caledonia, nine species have been tested and for one of these, P. stylirostris , (introduced in 1980), we are now in a commercial scale production with the tenth generation obtained in captivity.
Tipo: Text
Palavras-chave: New Caledonia; Penaeus stylirostris; Rearing; Stocking density; Larvae; Growth; Pellet feeds; Intensive culture.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1496.pdf

Suivi des coques du Croisic en 1998. Bilan synthétique.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fleury, Pierre-gildas; Langlade, Aime; Le Coguic, Marie-jo; Thebault, Anne; Chellet, B.; Ponthoreau, C.; Devulder, G.
Suite aux mortalités massives de coques apparues au Croisic en août 1997, des études ont été mises en place en 1998, avec une coordination des travaux des différents laboratoires impliqués: suivi de la température et de la matière organique dans le sédiment, suivi des animaux et observation des parasites. Les principaux résultats sont:  - l'enregistrement de brusques amplitudes thermiques dans le sédiment;  - des taux anormalement élevés de matière organique dans le sédiment (20 à 40%) à l'automne 1997, puis des taux plus habituels (&lt;2%) après les tempêtes de l'hiver 1997-98 ; - un affaiblissement important de la vitalité musculaire des animaux en juillet;  - une infestation relativement faible en trématodes virulents (Labratrema minimus), mais dont les...
Tipo: Text
Palavras-chave: Coques; Cerastoderma edule; Le Croisic; Sédiment; Elevage; Mortalité; Croissance; Vitalité; Maturation; Pathologie; Cockles; Cerastoderma edule; Le Croisic (France); Sediment; Rearing; Mortallty; Growlh; Vitality; Maturation; Pathology.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00107/21848/19435.pdf

Review of grow-out techniques under tropical conditions: Experience of Thailand on seabass (Lates calcarifer ) and grouper (Epinephelus malabaricus)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Tookwinas, S.
Seabass and grouper have been reared in cages in coastal waters in Thailand for 10 years. The fingerlings are nursed for a month in nylon nursing cages. Then, the juvenile fish are reared in culture cages which can be stationary or floating. The cage is usually 5 x 5 x 2 metres. The stocking density is around 500 to 2000 fish per cage. The survival rate is approximately 80%. The selling price at the culture site is 80 baht and 250 baht per kg for sea bass and grouper respectively. The culture method and economics of culture are explained.
Tipo: Text
Palavras-chave: Marketing; Diseases; Dissolved oxygen; Stocking density; Physicochemical properties; Water quality; Feeding; Feed; Survival; Juveniles; Nursery ponds; Floating cages; Rearing; Fish culture; Fingerlings; Growth.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1423.pdf

The state of the art of IFREMER in tropical aquaculture
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Calvas, Jacques.
IFREMER, a French governmental agency, is engaged in research on tropical aquaculture since 1971, with the aims to develop new activities in French overseas territories and to export French technology to foreign countries. With 80 searchers and technicians the "Centre Oceanologique du Pacifique" is the main IFREMER's centre involved in tropical aquaculture. The research has been focused on the complete control of the whole cycle: constitution of broodstock, maturation and reproduction, larval rearing, and grow-out.
Tipo: Text
Palavras-chave: Lates calcarifer; Pisces; Penaeus stylirostris; Penaeus indicus; Penaeus monodon; Macrobrachium rosenbergii; Crustacea; Perna viridis; Crassostrea rhizophorae; Crassostrea gigas; Saccostrea echinata; Brood stocks; Reproduction; Larval development; Rearing; Research institutions.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1500.pdf

Anatomy and physiology of digestive tract of crustaceans decapods reared in aquaculture
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ceccaldi, H.
The digestive tract of crustacea is complex. It is composed of a shor t oesophagum, a stomach with two bags, and internal wall with appendags specialized in grinding of feeds. These hard mastication pieces represent the gastric mill. Setae, filters included in the stomach structure allow the separation between food particles and liquid compounds. Those one are coming over through filters and more on to the digestive gland tubules or mid gut gland. In this organ, several types of cells play specialized functions: absorption, enzyme secretion, stocking function. Some cells of a new type, with undefined function, may be neurosecretions function, have been described recently. The end of tubules of digestive gland exhibits cells with embryonic characteristics....
Tipo: Text
Palavras-chave: Decapoda; Neurosecretion; Feed; Rearing; Digestive glands; Enzymes; Stomach; Crustacean culture.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1486.pdf

Marine larval fish rearing
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Arnold, C.
Various methods of producing juvenile finfish will be discussed. This includes the intensive production in controlled environments as well as extensive pond production. Factors important to survival such as temperature, salinity, pH, water quality, bacteria and parasites, density, food types and food density as well as information on food and food production will be given.
Tipo: Text
Palavras-chave: Fish culture; Aquaculture development; Aquaculture techniques; Rearing.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1445.pdf

Relance de l'huître plate. Rapport de synthèse des travaux 1990
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Martin, Anne-genevieve.
Une convention a été signée en 1990 avec la Région Bretagne pour financer la poursuite des recherches dans le but d'accélérer la relance de l'élevage de l'huître plate, à la suite de la deuxième épizootie due à un protozoaire, Bonamia ostreae. Ce rapport présente les travaux réalisés et les résultats acquis durant l'année 1990, dans les domaines de l'épidémiologie descriptive, de la zootechnie, de la génétique (recherche d'espèces ou de souches résistantes) et de l'immuno-pathologie (étude de la maladie et des mécanismes de défense des mollusques).  Durant l'année 1990, la situation épidémiologique des élevages d'huîtres plates en eau profonde a évolué différemment selon les secteurs: relativement stable en Baie du Mont st Michel, elle présente de brusques...
Tipo: Text
Palavras-chave: Bivalves; Ostrea edulis; Bonamia ostreae; Épidémiologie; Pathologie; Immunologie; Génétique; Échantillonnage; Élevage; Shellfish; Ostrea edulis; Bonamia ostreae; Epidemiology; Pathology; Immunology; Genetic; Sampling; Rearing.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00102/21320/18942.pdf

Donnees pratiques sur l'elevage au laboratoire des larves de Palaemon serratus (Pennant)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Campillo, Albert.
The main factors conditioning the larval development of P. serratus have been studied in the Marine Station at Roscoff. Several types of natural diets have been tested. The nauplii of Artemia salina remain the most practical food. However, it was necessary to verify that a diet of Artemia permits development to a normal mysis. In these experiments, only Artemia originating in California, gave satisfactory results (84.5% viable post-larval shrimps). The most favorable density of larvae during cultivation was between 50 and 100/1. The larvae of P. serratus resisted very wide and sudden variations in salinity. However, when the salinity was &lt;12 ppt, there was 100% mortality. The maximal survival of post-larval shrimp was at 25 ppt. The temp had an...
Tipo: Text
Palavras-chave: Penaeus japonicus Crangon crangon Fucus spiralis Artemia salina Penaeus monodon Penaeus duorarum Penaeus kerathurus Penaeus orientalis Palaemon serratus Artificial feeding Larval development; Larvae Crustacean culture Laboratory culture; Rearing.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-2028.pdf

Influence de la densite et de l'age des huitres japonaises (Crassostrea gigas ) sur la croissance et la composition biochimique en bassins de terre
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bodoy, A; Geiaron, P; Garnier, Jacqueline; Heurtebise, S.
Two different biomasses (100 g multiplied by m super(-2) and 1 kg multiplied by m super(-2)) of oysters were put in identical sea-water ponds, thus leading to different trophic conditions, corresponding to rearing techniques. Changes in growth, biochemical composition and sexual maturation were recorded for two age groups. The first one included 9 month-old oysters and the second one 21 month-old oysters, at the beginning of the experiment. For both age groups, significant differences were observed in growth and biochemical composition. Lipids were accumulated faster for the lower biomass. However, the only difference concerning glycogen was observed on the older oysters. They showed a peak at the lowest biomass and a decrease at the larger biomass. Sexual...
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Sea water; Oyster culture; Glycogen; Age; Chemical composition; Lipids; Biochemistry; Sexual maturity; Rearing; Pond culture; Biomass; Growth; Density.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-916.pdf

Strategie de repeuplement du mollusque gasteropode Concholepas concholepas (B) au sud du Chili
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Varelasantibanez, C.
The reproducers are kept in the laboratory throughout the year and the egg-carrying capsules can be stimulated during this entire period. The capsules are then transferred to the natural environment where hatching takes place. Moreover, juveniles taken in the natural environment can be farmed in suspended systems, at sea, where their growth is faster than in a controlled environment.
Tipo: Text
Palavras-chave: Chile; Concholepas concholepas; Gastropoda; Marine molluscs; Nutrition; Raft culture; Juveniles; Hatcheries; Growth; Laboratory culture; Sexual reproduction; Aquaculture; Rearing.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-927.pdf

Intensive larval rearing trials of red drum (Sciaenops ocellata ) in Martinique (F.W.I.).
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
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

Reference diet for crustaceans: Principle of experimentation.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Castell, J.
Feeding trials were conducted with over 22 different crustacean species to compare the potential use of two diets as Standard Reference Diets (SRD) in crustacean research. The two diets (BML 81 S, a casein/albumin based formula developed at the University of California, Bodega Marine Laboratory, and HFX CRD 84, a crab protein concentrate based diet formulated at the Canadian Department of Fisheries and Oceans Halifax Laboratory) were about equal in performance for most species tested. Though neither diet was an ideal SRD, the HFX CRD 84 formulation based upon a purified protein of marine origin was accepted as the interim SRD for use in aquatic crustacean studies.
Tipo: Text
Palavras-chave: Astacus astacus; Penaeus orientalis; Homarus americanus; Crustacea; Rearing; Carbohydrates; Lipids; Proteins; Experimental research; Feeding experiments; Nutritional requirements; Diets.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1503.pdf

Concevoir des structures pour l'élevage des poissons en mer
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Priour, Daniel.
The quick evolution of fish farming in Europe, and its development towards the open sea needs suitable farming tools. These tools must withstand the difficult sea states, but they must be easy to use, well adapted to the fish farming and not too much expensive. This book helps the design of such tools. It defines the solicitations of the sea on all the structures, and presents rules and methods to control these solicitations. Here, a structure is composed of a rearing support, a mooring system and equipments. This book describes these components, class them and gives lists of providers. The rearing support can be a cage, a group of cages or a boat. The support can float or to be submersible. The mooring system can be made up ropes, chains, anchors,...
Tipo: Text
Palavras-chave: Aquaculture equipment; Mooring systems; Anchoring; Aquaculture techniques; Structures; Sea water; Life support systems; Aquatic environment; Cage culture; Marine technology; Rearing; Fish culture.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/1995/rapport-1667.pdf

Etude de la Sensibilite Thermique des Larves du Crustace Decapode : Palaemon Serratus (Pennant).
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
The whole of experiments carried on from thermal constraints on the larval development of Palaemon serratus allows the following observations: -individual rearings obtain the best survival rates in the witness groups and neutralize by a dense food and the absence of intraspecific cannibalism, factors which can interfere with the results ascribed only to the experiments; - slight thermal increases (10 and 12 degree C) do not involve secondary effects on the post larvae when the development is realized at 20 degree C; - if the TL 50 is reaching 34 degree C, letal effects are observed, as soon as the final temperature; - whatever is the temperature increase, the relation = mortality/temperature reached is similar and this factor mortalities observed, that...
Tipo: Text
Palavras-chave: Palaemon serratus; Mortality; Lethal limits; Larval development; Temperature tolerance; Rearing.
Ano: 1980
URL: http://archimer.ifremer.fr/doc/1980/publication-1931.pdf

Effects of nutritional requirement of live food organisms on growth and survival of barramundi/seabass Lates calcarifer (Bloch) larvae.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Rimmer, M; Reed, A.
Larvae of barramundi (Lates calcarifer ) reared intensively in some Australian hatcheries have suffered periodic high mortalities which have been ascribed to nutritional deficiencies in the live food organisms used, particularly deficiencies of polyunsaturated fatty acids. Barramundi larvae reared in an experimental system and fed on four diets, representing combinations of supplemented and unsupplemented rotifers (Brachionus plicatilis ) and supplemented and unsupplemented brine shrimp (Artemia salina ). Supplementation of rotifers and brine shrimp with a commercially available microencapsulated diet increased the levels of several polyunsaturated fatty acids in the food organisms.
Tipo: Text
Palavras-chave: Lates calcarifer; Brine shrimp culture; Growth; Intensive culture; Fatty acids; Feeding; Mortality; Hatcheries; Rearing; Food organisms; Nutritional requirements; Diets; Larvae; Survival.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1421.pdf

Contribution a l'etude de l'elevage de la crevette rose Palaemon serratus (Pennant) en captivite.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Campillo, Albert.
The growth of post-larval P. serratus has been studied until the appearance of secondary sexual characters, in order to eliminate the influence of sex ratio on the mean wt. The influence of temp on intermolt period and number of molts was observed in male and female kept individually. Different sorts of food of natural origin have been tested. The rearing of post-larval lots metamorphosed at different times of the yr showed that the growth of P. serratus is conditioned not only by the temp, but also by the season. The food conversion ratio was defined in relation to the sex and age of the prawns. Shelters allowed the author to obtain a ratio of survival which varied post-larvae per square meter. The sex ratio established from several breedings as soon as...
Tipo: Text
Palavras-chave: Phaeodactylum tricornutum; Tetraselmis suecica; Artemia; Palaemon serratus; Crustacean culture; Larval development; Larvae; Induced breeding; Hatching; Controlled conditions; Laboratory culture; Rearing.
Ano: 1975
URL: http://archimer.ifremer.fr/doc/1975/publication-2027.pdf

Marine cage fish farming
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Espeut, P.; Harache, Yves; Lemarie, Gilles; Ricard, Jean-marc.
Marine capture fisheries in Jamaica is primarily artisanal in nature ansd is conducted maiinly by fishermen operating from canoes. Approximately 95% of these fishermen operate on the coastal shelf and its associated banks. The commercial species harvested comprise bottom-dwelling, coral reef species and free swimming species of finfish. Other fishery resources of commercial value include marine shrimp, conch and lobsters. Catch statistics are not available for all species, but the Department of Fisheries reports a slight decline in fishery production with production decreasing from 16 milion lbs in 1990, despite the fact that fishing efforts have doubled. Over this period the number of registered fishermen has grown from 12 000 to 16 000, al of whom are...
Tipo: Text
Palavras-chave: Aquaculture equipment; Cage culture; Rearing; Marine technology; Fish culture; Jamaica.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/rapport-1918.pdf

Nymphal and Adult Performance of Euschistus heros (Fabr.) (Hemiptera: Pentatomidae), as a Potential Alternative Host for Egg Parasitoids Multiplication
Provedor de dados: Neotropical Entomology
Autores: PERES,WILSIMAR A.A.; CORRÊA-FERREIRA,BEATRIZ S.
This research aimed to evaluate the potential of Euschistus heros (Fabr.) (Hemiptera: Pentatomidae) as host for multiplication of egg parasitoids, by determining the nymphal and adult performance of E. heros from laboratory and the field, comparing with Nezara viridula (L.) (Hemiptera: Pentatomidae), under mass conditions. One hundred eggs of E. heros and N. viridula were placed among the leaves of soybean plants contained in cages (50x50x70 cm) and observation were made until adult emergence. The nymphs fed on soybean pods, dry soybean and peanuts seeds. The number of nymphs that reached adulthood and the development time were calculated. The survivorship and reproduction performance of laboratory and field populations of E. heros and N. viridula were...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Insecta; Glycine max; Southern green stink bug; Neotropical brown stink bug; Rearing.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000400004

Potential use of antibiotic to improve performance of laboratory-reared Nezara viridula (L.) (Heteroptera: Pentatomidae)
Provedor de dados: Neotropical Entomology
Autores: Hirose,Edson; Panizzi,Antônio R.; Cattelan,Alexandre J.
The antibiotic streptomycin added to the drinking water at a concentration of 125 mg/l during nymphal development of Nezara viridula (L.) (Heteroptera: Pentatomidae)accelerated the development in ca. 2 days, increased survivorship, and doubled adult longevity; nymph survivorship and adult body weight were not affected when compared to control insects. Streptomycin has potential in rearing N. viridula, especially in improving quality of field-collected adults, by mitigating the introduction of pathogenic bacteria, and improving the quality of the population.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Stink bug; Rearing; Antimicrobial.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000200022

Grossissement des juveniles de palourdes "Ruditapes decussatus" (l., 1758), sur l’estran de Zarat (golfe de Gabès, Tunisie), dans des conditions expérimentales.
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Zouari, M.; Hitonori, N.; Lymayem, Y.; M'Rabet, R.; Dhraief, M.N.; Missaoui, H.; Guergej, H.; Kraiem, M.M.
Le potentiel de grossissement de la palourde Ruditapes decussatus (L. 1758), élevée dans des poches de filet de 1 m2 de surface, a été évalué sur l’estran de Zarat (golfe de Gabès) pour la période de juillet 2006 à novembre 2007. Dans une première expérience, trois niveaux de la marée, représentant des chenaux de drainage de l’eau, existants entre la ligne de marée haute et celle de marée basse, ont été comparés sur une durée de 16 mois. Chacun des niveaux a été représenté par un triplicata de sacs de 150 individus. Dans une seconde expérience, trois densités de mise en charge différentes ont été comparées sur une durée de 17 mois. Pour cela, deux sacs de 100 individus chacun et deux autres de 200 individus chacun ont été alignés à l’expérience précédente,...
Tipo: Journal Contribution
Palavras-chave: Clam culture; Comparative studies; Environmental conditions; Estuaries; Experimental culture; Growth; Growth rate; Marine aquaculture; Marine molluscs; Population density; Rearing; Stocking density; Clams.
Ano: 2009
URL: http://hdl.handle.net/1834/4495

Elaboration d’aliments secs pour le tilapia du Nil &lt;Oreochromis niloticus&gt; (l., 1758) en élevage dans les eaux géothermales du sud Tunisien
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Mensi, F.; Azaza, M.S.; Abdelmouleh, A.; Kraiem, M.M.
Dans le but de promouvoir l’alimentation du Tilapia en élevage dans les fermes aquacoles tunisiennes, quatre aliments composés secs ont été élaborés à partir de matières premières conventionnelles et contenant différents taux de farine de poisson de fabrication locale (0 %, 10%, 20 % et 30 %). Ces aliments composés, de 36 % de protéines brutes et 6 % de lipides, ont été testés sur des alevins de Tilapia de poids moyen initial de 2 g. Après 45 jours d’expérimentation, les poids moyens finaux ont varié entre 21,33 g et 29,34 g selon les traitements. Les meilleurs taux de croissance et de transformation alimentaire ont été obtenus par les aliments contenant 20 % et 30 % de farine de poisson, avec des taux de croissance spécifiques (TCS) respectifs de 5,82 %...
Tipo: Journal Contribution
Palavras-chave: Artificial feeding; Diets; Fish meal; Fish meal; Rearing; Thermal aquaculture; Oreochromis niloticus; Fish meal; Fish meal.
Ano: 2005
URL: http://hdl.handle.net/1834/3711

Essai d’acclimatation du tilapia du nil "Oreochromis niloticus"  dans la retenue du barrage Lebna (Cap bon, Tunisie)
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Derouiche, E.; Azaza, M.S.; Kraiem, M.M.
Ce travail consiste à tester l’acclimatation d’une espèce thermophile, le tilapia du Nil Oreochromis niloticus dans la retenue du barrage Lebna (Cap Bon), moyennant un système extensif de grossissement. Les résultats montrent que le tilapia introduit directement en pleine retenue a pu se maintenir et supporter les mauvaises conditions hivernales en adoptant une stratégie d’hibernation. Par ailleurs, avec le retour des conditions favorables (T&gt;20°C), ce Cichlidé a montré une bonne condition, une meilleure croissance qu’en élevage dans les bassins et cette fraction de population a pu proliférer.
Tipo: Journal Contribution
Palavras-chave: Acclimatization; Brackishwater fish; Environmental conditions; Fish culture; Growth; Hibernation; Population dynamics; Rearing; Water reservoirs; Testing; Tilapia.
Ano: 2009
URL: http://hdl.handle.net/1834/4494

Etude comparative du développement des larves de poissons élevées en conditions intensives et semi-extensives : Ontogénèse et performances zootechniques
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Zouiten El Abed, D.
Le développement de l’aquaculture repose avant tout sur l’approvisionnement en specimens à élever mais pour la majorité des espèces, le recrutement naturel est insuffisant pour constituer une base d’élevages à grandes échelles. La production aquacole tunisienne est essentiellement piscicole et l’élevage extensif dans les barrages y contribue de façon importante. L'élevage des larves de poissons constitue une étape incontournable pour la production d’alevins destinés à la pisciculture et aux efforts de repeuplement des lacs de barrages et lagunes côtières tunisiennes. Dans cette thèse, des élevages larvaires expérimentaux en mésocosme ainsi que des études comparatives entre les larves élevées avec les techniques intensives et semi-extensives ont été...
Tipo: Theses and Dissertations
Palavras-chave: Larval development; Rearing; Ontogeny; Aquaculture; Mesocosms.
Ano: 2012
URL: http://hdl.handle.net/1834/5529

Larval development of the land crab &lt;i&gt;Gecarcinus lateralis lateralis&lt;/i&gt; (Fréminville,1835) (Brachyura Gecarcinidae) reared in the laboratory
Provedor de dados: Open Marine Archive
Autores: Willems, K.A.
The complete larval development of &lt;i&gt;Gecarcinus lateralis lateralis&lt;/i&gt; (Fréminville, 1835), a gecarcinid land crab from Bermuda, is described and illustrated based on larvae reared in the laboratory. The species passes through six (possibly five) zoeal stages and one megalopal stage. The development through six zoeal stages to the young crab stage takes at least 29 days. Morphological characters of &lt;i&gt;G. l. lateralis&lt;/i&gt; larvae are compared with gecarcinid species of which the complete larval development is known, i.e., &lt;i&gt;Cardisoma guanhumi&lt;/i&gt; and &lt;i&gt;C. carnifex&lt;/i&gt;.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Larval development; Rearing; Gecarcinus lateralis lateralis.
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3392

Manipulated yeast diets as a partial algal substitute for the nursery culture of the hard clam &lt;i&gt;Mercenaria mercenaria&lt;/i&gt;
Provedor de dados: Open Marine Archive
Autores: Coutteau, P.; Hadley, N.H.; Manzi, J.; Sorgeloos, P.
Rearing bivalve molluscs in commercial hatchery and nursery systems has so far relied on the production of live algae, which is costly and often unpredictable. Therefore the development of satisfactory artificial diet would greatly reduce the operating costs of bivalve operations. The development of techniques to improve the nutritional composition and digestibility of yeasts resulted in a product with great potential as a substitute for unicellular algae. Previous work on the Manila clam &lt;i&gt;Tapes semidecussata&lt;/i&gt; showed that replacing 80% of the algae by these manipulated yeasts resulted in growth rates of 64 to 93% in comparison with the growth rate obtained for the algal control. In the present study a standard culture test for evaluating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clam culture; Diets; Feed composition; Feeding experiments; Food preferences; Hatcheries; Invertebrate larvae; Rearing.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2809

Onshore nursery rearing of bivalve molluscs in Belgium
Provedor de dados: Open Marine Archive
Autores: Claus, C.; Maeckelberghe, H.; De Pauw, N.
From October to April the growth of spat of &lt;i&gt;Ostrea edulis, Crassostrea gigas&lt;/i&gt; and &lt;i&gt;Venerupis semidecussata&lt;/i&gt; in an onshore nursery was recorded as a function of water temperature and food level. The results of this study indicate that even very eutrophic water, such as that of the Sluice Dock at Ostend, Belgium, does not provide enough microalgae to sustain growth of bivalve spat during winter, irrespective of whether the water is heated or not. It is necessary to supply additional food (cultured live algae). Food shortage for three months at higher temperature induced a stress situation resulting in high mortality rates, even after transferring all the spat into an optimal combination of temperature and food availability.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Rearing; Bivalvia; Molluscs; Belgium.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3369

Rearing techniques for difficult marine fish larvae
Provedor de dados: Open Marine Archive
Autores: Dhert, Ph.; Divanach, P.; Kentouri, M.; Sorgeloos, P.
In finfish mariculture, seed production and larval rearing still form the bottleneck for all ongrowing operations and are considered as the main limiting factor for industrial development. Through trial and error more than through biological understanding two opposite hatchery techniques have been developed which surprisingly control a multiparametric combination of different factors but aspire to the same objective of conformity with wild standards and the cost-effective production of larvae. In intensive aquaculture, the rearing technique is characterised by high initial larval densities in small tanks under strict hydraulic, thermic, and nutritional conditions. The light conditions are artificial. The temperature and quality of water are controlled. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture techniques; Environmental conditions; Fish eggs; Fish larvae; Food organisms; Industrial production; Marine fish; Rearing; Seed (aquaculture); Artemia; Brachionus plicatilis; Pisces [Fish].
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=301

Large-scale microalgae production for nursery rearing of marine bivalves
Provedor de dados: Open Marine Archive
Autores: De Pauw, N.; Verboven, J.; Claus, C.
The feasibility of large-scale bloom induction of nutritionally suited natural phytoplankton species, to feed a semi-industrial nursery of edible shellfish, built on the Belgian coast, was tested. The outdoor microalgal production unit consisted of four tanks of 100 m² surface each (two of 1 m depth and two of 0.5 m depth), equipped with different mixing devices. The cultures were run as chemostats in which seawater was enriched with commercial inorganic N, P and Si fertilizers. Depending on the season, between 5-10 and 80% of the culture volume could be harvested daily, with algal densities ranging from 50,000 to 500,000 cells per ml. By manipulation of operational parameters such as detention time, nutrient levels and nutrient ratios (N: Si: P), unsuited...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algal culture; Marine aquaculture; Mass culture; Mollusc culture; Rearing; Chaetoceros; Chlorella; Nitzchia; Phaeodactylum; Skeletonema.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3395

Search for beneficial bacterial strains for turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.) larviculture
Provedor de dados: Open Marine Archive
Autores: Huys, L.; Dhert, P.; Robles, R.; Ollevier, F.P.; Sorgeloos, P.; Swings, J.
The aerobic bacterial flora in the gut of turbot larvae and their influence on larval survival was examined. Two turbot experiments were run with six replicates each time. Large variation, from 0% up to 44%, was observed in the survival percentage of turbot larvae. There was no correlation between the number of bacteria present in the gut of turbot larvae and the larval survival rate. During both experiments, all replicates followed nearly the same rate of bacterial development in the gut of turbot larvae going from circa 10&lt;sup&gt;2&lt;/sup&gt; CFU larva&lt;sup&gt;-1&lt;/sup&gt; just before first feeding at day 3 post hatch to 10&lt;sup&gt;5&lt;/sup&gt; CFU larva&lt;sup&gt;-1&lt;/sup&gt; at day 9 post hatch.In total, 127 bacterial isolates from 12...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerobic bacteria; Aquaculture; Commensals; Digestive system; Fish culture; Fish larvae; Gastrointestinal tract; Microorganisms; Rearing; Scophthalmus maximus; Survival; Bacteria; Scophthalmus maximus; Vibrio mediterranei.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5720

International study on &lt;i&gt;Artemia&lt;/i&gt; : 33. Promising results in larval rearing of &lt;i&gt;Penaeus stylirostris&lt;/i&gt; using a prepared diet as algal substitute and for &lt;i&gt;Artemia&lt;/i&gt; enrichment
Provedor de dados: Open Marine Archive
Autores: Léger, P.; Bieber, G.F.; Sorgeloos, P.
The importance of highly unsaturated fatty acids (HUFA) such as 20:5omega3 and 22:6omega3 has been investigated for the larvae of the blue shrimp &lt;i&gt;Penaeus stylirostris&lt;/i&gt;. HUFA-rich or HUFA-enriched &lt;i&gt;Artemia&lt;/i&gt; nauplii yielded higher production results in the hatchery than HUFA-poor &lt;i&gt;Artemia&lt;/i&gt; especially when yeast was used as a substitute for algae during the early larval stages. Best results were obtained when a HUFA-rich formulated diet was used as a supplement to the yeast and as an enrichment for the &lt;i&gt;Artemia&lt;/i&gt; nauplii. Differences in production results could be attributed to the HUFA content in living and non-living larval diets.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diets; Food organisms; Rearing; Shrimp culture; Artemia; Penaeus stylirostris (Stimpson).
Ano: 1985
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3234

Experiences on importance of diet for shrimp postlarval quality
Provedor de dados: Open Marine Archive
Autores: Lavens, P.; Sorgeloos, P.
This paper gives an overview of own experiences with respect to the impact of dietary conditions on the quality of postlarval penaeid shirmp. Direct nutrient-specific effects are documented for highly unsaturated fatty acid (HUFA), phosphatidyl choline (PC) and ascorbic acid (AA). Specific immunostimulants may also contribute to an improved stress resistance of the shrimp fry. Last, but not least, some emphasis is placed on the role of the microflora during the hatchery rearing, the possible reduction of bacteria in the live food adminstered, and the use of probionts through the diet.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal nutrition; Condition factor; Diets; Disease resistance; Feed composition; Microorganisms; Polyunsaturated fatty acids; Rearing; Shrimp culture; Vitamin C; Artemia; Penaeidae [Penaeid shrimps].
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3876

Reproductive performance of &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; females in captivity
Provedor de dados: Open Marine Archive
Autores: Cavalli, R.O.; Lavens, P.; Sorgeloos, P.
The breeding frequency, fecundity, egg hatchability, larval output and viability of pond-reared, mature &lt;i&gt;Macrobrachium rosenbergii&lt;/i&gt; females were individually followed up during 180 d. Sexually mature prawns were maintained under controlled laboratory conditions (28.7 C and 12-h light/d) in a 190-L freshwater recirculation system and fed a formulated diet. Ovarian development, moulting and spawning events were checked daily. At least six consecutive moults were recorded for each of the 18 females. The duration of the intermoult period averaged 27.5 d and was not affected by ovarian development or spawning, but intermoult periods followed by spawning had significantly lower growth rates. From a total of 126 moulting events recorded, egg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fecundity; Moulting; Prawn culture; Rearing; Recirculating systems; Reproductive cycle; Macrobrachium rosenbergii.
Ano: 2001
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8494

Biology and management of the masked chafer Cyclocephala distincta Burmeister (Melolonthidae, Dynastinae, Cyclocephalini)
Provedor de dados: Revista Brasileira de Entomologia
Autores: Souza,Thamyrys B.; Maia,Artur C.D.; Albuquerque,Cleide M.R.; Iannuzzi,Luciana.
Adults of Cyclocephala distincta are flower visitors of Neotropical palms (Arecaceae) and commonly found in the Atlantic Forest of Pernambuco, Brazil. Males and females were collected in the wild and subjected to captive rearing and breeding. The egg hatching rate, the life cycle, longevity of immatures and adults, and oviposition parameters in captivity were analyzed. The average duration of the life cycle of C. distinctawas 108.2 days (n = 45). The egg stage lasted on average 10.9 days, and the egg-hatching rate was 73.9%. The immature stage lasted on average 93.4 days. The larvae stage exhibited negative phototaxis, and the size of their head capsules increased at a constant rate of 1.6 between instars, following Dyar's rule. The average duration of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding; Life cycle; Rearing; Thanatosis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000100037

A new device to autonomously feed individualized mantids on extended periods of time
Provedor de dados: Revista Brasileira de Entomologia
Autores: Scherrer,Marcus V.; Aguiar,Alexandre P.
ABSTRACT Mantises can live for many months, are naturally voracious, and feed invariably on live prey. Many species have a propensity for cannibalism and cannot be kept together for most of their life cycle, which makes large-scale rearing typically time-consuming, thus easily becoming prohibitive. This is particularly true for early instars, because they are the most abundant stage of a developmental cohort. Such limitation hinders research on Mantodea which depend on live individuals, such as behavior, physiology, ontogeny, and others. In this work, a simple, low-maintenance “self-service” device is described, which is greatly effective in reducing the time needed for keeping live, individual, small to medium-sized mantises. Trial and error usage and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mantodea; Praying mantis; Rearing; Captive breeding; Cannibalism.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000400316

Metabolizable energy values of diets supplemented with xylanase determined with laying hens
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Souza,Karina Márcia Ribeiro de; Faria,Douglas Emygdio de; Nakagi,Vanessa de Souza; Carão,Ágatha Cristina de Pinho; Pacheco,Bruna Helena Carvalho; Trevisan,Renata Barbieri; Gomes,Gilson Alexandre.
The objective of this study was to evaluate the effect of the supplementation of xylanase in diets with reduced energy level on the apparent metabolizable energy corrected for nitrogen, determined with laying hens at 14, 36, 60 and 80 weeks of age. Four digestibility trials were conducted, using 80 Hy-line W36 laying hens aged 14, 36, 60 and 80 weeks of age. Birds were distributed in a completely randomized design in 2 × 2 factorial arrangement (energy level × inclusion of xylanase), totaling four treatments with 10 replicates of two birds each. Treatments were: positive control (balanced diet for their age); positive control + xylanase; negative control (diet with reduction of 100 kcal/kg in the level of metabolizable energy); and negative control +...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corn; Energy reduction; Metabolizability coefficient; Rearing.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001200008

Sugarcane bagasse as exclusive roughage for dairy heifers
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Inácio,Jonas Gomes; Ferreira,Marcelo de Andrade; Silva,Randerson Cavalcante; Silva,Janaina de Lima; Oliveira,Júlio César Vieira de; Santos,Djalma Cordeiro dos; Soares,Luciana Felizardo Pereira; Campos,José Maurício de Souza.
ABSTRACT The objective of this study was to evaluate the effect of different concentrate levels (40, 50, 60, and 70% on dry matter basis) on intake, digestibility of nutrients, and performance of heifers fed sugarcane bagasse as exclusive roughage. Twenty Girolando heifers, with an average body weight of 198±25.6 kg were assigned to a completely randomized design, established according to body weight. The intake of dry matter (5.12 to 7.73 kg d-1), organic matter (4.72 to 7.32 kg d-1), crude protein (0.71 to 1.05 kg d-1), and digestible organic matter (3.09 to 4.77 kg d-1) linearly increased with the inclusion of concentrate in the diets. The final weight (238 to 299 kg d-1), body weight gain (0.50 to 1.20 kg d-1), and total weight gain (35.2 to 83.6 kg...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Agro-industrial waste; Digestibility; Intake; Morphometry; Rearing; Semiarid.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100080

Levels of mineral mixture and urea in supplementation of crossbred heifers, with Gyr predominance, reared at pasture during the dry season
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Mendonça,Bruno Pietsch Cunha; Lana,Rogério de Paula; Mancio,Antonio Bento; Detmann,Edenio; Barbosa,Analívia Martins; Guimarães,Geicimara.
It was evaluated several levels of mineral mixture and urea for crossbred heifers, with Gyr predominance, in the dry season period in Zona da Mata region in Minas Gerais. The experiment was carried out in a Brachiaria decumbens pasture area, divided in five paddocks of 3.5 hectares. It was used 35 heifers distributed in a 2 õ 2 + 1 factorial scheme, composed of two levels of urea (10 and 25%), two levels of mineral salt (10 and 25%) and a control diet (only mineral salt), totaling five diets, each one evaluated with seven replicates. The supplements were based on ground corn, urea, ammonia sulfate and mineral mixture with 32 to 72% crude protein, and they composed the following diets: MM ( mineral mix), 10:10 (10% mineral mix, 10% urea and 80% corn); 10:25...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen supplement; Rearing; Weight gain.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001000025

Broiler and swine production: animal welfare legislation scenario
Provedor de dados: Scientia Agricola
Autores: Silva,Raquel Baracat Tosi Rodrigues da; Nääs,Irenilza de Alencar; Moura,Daniella Jorge de.
Brazil is the world largest meat exporter and one of the most recent demands of the import market is directed towards animal welfare. Codes, norms and legislations used in Brazil are out of date, and in most cases those adopted for both poultry and swine production are based on international standards to meet trade requirements. This research aimed to study and describe an overall scenario of the standards, norms and legislations for animal welfare items applied to broiler and swine production: rearing, handling and transportation. The critical points of these items were identified in accordance to standards and current literature on animal welfare issues, effective on January 2008. The comparison was based on given scores varying from 1-5 (very bad to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Rearing; Transportation; Environment; Norms.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600001

การพัฒนาการเลี้ยงผีเสื้อข้าวสารเพื่อการผลิตแตนเบียนไข่ Trichogramma spp.
Provedor de dados: Thai Agricultural Research Repository
Autores: Winipa Chaleecan; Nutcharee Siri.
Tipo: PhysicalObject
Palavras-chave: Rice moth; Corcyra cephalonica; Stainton; Trichogramma; Egg parasitoid; Rearing; Temperature; Animal feeding; Egg yields; Egg size; Hatching; Parasitism; ผีเสื้อข้าวสาร; แตนเบียนไข่; การเลี้ยงผีเสื้อ; การผลิตไข่; อุณหภูมิ; การให้อาหาร; การวางไข่; ขนาดไข่; การฟักไข่; ประสิทธิภาพการเบียน.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5822

การใช้ละหุ่งสายพันธุ์การค้าเพื่อเพิ่มผลผลิตไหมอีรี่
Provedor de dados: Thai Agricultural Research Repository
Autores: Sivilai Sirimungkararat; Weerasak Saksirirat; Duenpen Wongsorn; Sumeth Maskhao.
Eri silkworm (Samia ricini D.) is an important wild silkmoth of world textile industry, this study experiments on the increasing yield of eri silkworm using 3 commercial lines of castor (Ricinus communis) TCO101, 207 and 208 in comparison with indigenous castor line (InL) and CaKKU1 line. The eri silkworm fed with each line had similar period of life cycle lasting 52-72 days. Survival percentage of eri silkworm when fed with castor TCO101 and CaKKU1 was the highest with 93.33% (larva-adult) and statistically different (P&lt;0.05) to others. Using TCO101, the eri silkworm yields such as 5th instar larval weight, fresh cocoon weight, pupa weight, shell weight,percent of cocoon shell, total shell weight, fresh cocoon weight/10,000 larvae were 8.2530 g, 3.3799...
Tipo: PhysicalObject
Palavras-chave: Castor; Commercial line; Varieties; Rearing; Eri silkworm; Egg yields; Survival percentage; Pupa weight; Shell weight; Hatching egg; ใบละหุ่ง; สายพันธุ์การค้า; พันธุ์; การเลี้ยงไหม; ไหมอีรี่; ผลผลิตไข่; เปอร์เซ็นต์เปลือกรัง; เปอร์เซ็นต์น้ำหนักรัง; เปอร์เซ็นต์ไข่ฟัก; น้ำหนักดักแด้.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5805

พระเจ้าร้อยท่า (Heteropanax fragrans) พืชอาหารชนิดใหม่ เพื่อการเพาะเลี้ยงไหมอีรี่ในประเทศไทย
Provedor de dados: Thai Agricultural Research Repository
Autores: Sivilai Sirimungkararat; Weerasak Saksirirat; Duenpen Wongsorn; Chanapat Buamuangphia.
Comparison of eri silkworm rearing by using different major food plants, different lines of kesseru(Heteropanaxfragrans); Thai and Indian lines, and cassava Rayong 72 was conducted. The results showed that eri silkworm fed with kesseru leaves and cassava leaves has similar life cycles, 57-73 days and 53-73 days, respectively. Using Indian kesseru, larval (1-5 instar) and adult survival rates were 100%. Cocoon yield obtained from feeding with Rayong 72 was significantly higher (P&lt;0.05) than feeding with both 2 lines of kesseru. However, average yields of fresh cocoon, pupa weight, %cocoon shell, total shell weight and fresh cocoon weight/10,000 larvae derived from cassava feeding were 2.2312 g, 1.9029 g, 14.37%, 9.52 g, and 22.31 kg, respectively, and...
Tipo: PhysicalObject
Palavras-chave: Kesseru; India line; Thai line; Heteropanax fragrans; Cassava; Animal feeding; Rearing; Eri silkworm; Egg yields; Survival percentage; Pupa weight; Shell weight; Hatching egg; พระเจ้าร้อยท่า; สายพันธุ์อินเดีย; สายพันธุ์ไทย; มันสำปะหลัง; การให้อาหาร; ไหมอีรี่; ผลผลิตไข่; เปอร์เซ็นต์เปลือกรัง; เปอร์เซ็นต์น้ำหนักรัง; เปอร์เซ็นต์ไข่ฟัก; น้ำหนักดักแด้.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5818

Megalotomus parvus West. (Hemiptera: Alydidae): inseto adequado para experimentação e didática entomológica
Provedor de dados: Anais da Sociedade Entomológica do Brasil
Autores: Ventura,Maurício U.; Panizzi,Antônio R.
Megalotomus parvus West. is a neotropical alydid very common and abundant in northern Paraná State (23º 11' S latitude, 51º 11' W longitude). A colony of this bug was maintained in the laboratory for successive generations. Nymphs and adults were reared in plastic boxes (12,0 x 12, 0 x 3,8 cm) lined with filter paper, using mature seeds of pigeon pea, Cajanus cajan plus water (imbibed cotton). The easiness of which M. parvus was reared in the laboratory allow to suggest the use of this bug for research and teaching purposes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Heteroptera; Rearing; Diet.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000300026

Nictemeral variations for pacu Caranha, Piaractus mesopotamicus (Holmberg, 1887) culture in single - phase
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Barreto,Luiz Eduardo Guimarães de Sá; Igarashi,Marco Antonio; Hayashi,Carmino.
Studies related to nictemeral variation were executed in a fish growing pond, during all the seasons of the year, collecting data for dissolved oxygen; temperature; pH and electrical conductivity at the feeding channel on pond's surface, bottom and at streamlet bed. The results showed that Autumn was the season which had the lowest values of water temperature, the interval points, during Spring time, had superior average values of temperature when compared to the ones that were observed at external points. The lowest and highest index of pH were during Autumn season. The electrical conductivity didn't show significant differences during Autumn season. The samples obtained from the streamlet had very high significant differences with the samples of fish...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Grow-out; Rearing; Environment.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400017

Comparison of artificial diets for rearing Corcyra cephalonica (Stainton, 1865) (Lep., Pyralidae) for Trichogramma mass production
Provedor de dados: Brazilian Journal of Biology
Autores: BERNARDI,E. B.; HADDAD,M. L.; PARRA,J. R. P.
The objective of this research was, based on biological studies, to determine and adequate diet for rearing Corcyra cephalonica (Stainton, 1865) in the laboratory so as to permit the rearing of this factitious host for Trichogramma mass production. The research was conducted at 25 ± 1ºC, RH 60 ± 10% and photophase of 14 hours. Six artificial diets were compared: a) whole wheat flour (48.5%), ground rice (48.5%) and sugar (3%); b) ground rice (97%) and sugar (3%); c) whole wheat flour (48.5%), rice flour (48.5%) an sugar (3%); d) whole wheat flour (97%) and yeast (3%); e) wheat germ (97%) and yeast (3%); f) rice bran (94%), sugar (3%) and yeast (3%); f) rice bran (94%), sugar (3%) and yeast (3%). All of the diets studied permitted the development of C....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corcyra cephalonica; Artificial diets; Rearing; Trichogramma.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100007