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| Registros recuperados: 86 | |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 86 | |
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