Breeder Hens
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Effects of Dietary Supplementation of Soy Isoflavones on the Performance and Egg Quality in Native Chinese Breeder Hens
ABSTRACT To investigate the effects of soy isoflavones (ISF) on the laying performance of Xueshan breeder hens at different phases of the egg production cycle, 32 weeks (wks) old local Chinese breeder hens were assigned to two groups with three replicates (750 hens/replicate) for control and treatment groups. Then every group was divided into three sub-group
Braz. J. Poult. Sci.. Publicado em: 20/12/2019
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2. EMBRYONIC MORTALITY AND BROILER CHICK QUALITY (Gallus gallus) FROM GLASS-SHELLED EGGS
Resumo Ovos de casca vítrea apresentam em suas superfícies pontos com coloração cinza claro de vários diâmetros, que ficam mais visíveis com o decorrer do período de armazenagem. Objetivou-se no trabalho, avaliar a fase de mortalidade embrionária, peso do ovo durante o período de incubação, intervalo de tempo de nascimento e a qualidade dos pinto
Ciênc. anim. bras.. Publicado em: 24/10/2019
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3. Dietary intake of broiler breeder hens during the laying period affects amino acid and fatty acid profiles in eggs
ABSTRACT The objective of this study was to evaluate the effects of maternal dietary intake on the amino acid and fatty acid contents in eggs during the laying period. An experiment with a 2×2 factorial design was conducted with two maternal dietary intake levels (100 and 75% of dietary intake recommended by the Chinese Ministry of Agriculture) and two broi
R. Bras. Zootec.. Publicado em: 12/09/2019
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4. The effect of arginine dietary supplementation in broiler breeder hens on offspring humoral and cell-mediated immune responses
The influence of supplementing the diet of broiler breeder hens with arginine (Arg) on their offspring's humoral and cell-mediated immune response was evaluated in two experiments. In experiments I and II, breeder hens were fed diets containing graded levels of Arg (0.943, 1.093, 1.243, 1.393 and 1.543% digestible Arg). In experiment I, the offspring was ran
Rev. Bras. Cienc. Avic.. Publicado em: 2014-06
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5. Some aspects of chicken behavior and welfare
Brazil is the world leader in broiler production and export. It achieved this position mainly to its excellent supply chain structure and climate, which favor poultry and grain production throughout its territory. Although Brazilian egg production is not as important as broiler production, this segment presents great potential of increasing its share in the
Rev. Bras. Cienc. Avic.. Publicado em: 2012-09
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6. Transmission of Campylobacter coli in chicken embryos
Campylobacter coli is an important species involved in human cases of enteritis, and chickens are carriers of the pathogen mainly in developing country. The current study aimed to evaluate the transmission of C. coli and its pathogenic effects in chicken embryos. Breeder hens were inoculated intra-esophageally with C. coli isolated from chickens, and their e
Brazilian Journal of Microbiology. Publicado em: 2012-06
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7. CANTHAXANTHIN AND OR 25-HYDROXYCHOLECALCIFEROL USE IN DIETS FOR BROILER BREEDER HENS / USO DE CANTAXANTINA E/OU 25-HIDROXICOLECALCIFEROL EM DIETAS PARA MATRIZES DE CORTE
A necessidade de melhorar o desempenho reprodutivo de matrizes de corte contribuí para os conceitos de desenvolvimento e novos produtos na alimentação animal. Carophyll Red tem na sua composição cantaxantina, a qual é estudada pela sua capacidade antioxidante 25 - (OH)D3 (25-hidroxicolecalciferol), um intermediário entre a vitamina D3 e da forma ativa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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8. Increased iNOS gene expression in the granulosa layer of F1 follicle of over-fed and under-fed broiler breeder hens
To clarify the effects of high (20 and 40% more than normal) and low (20% less than normal) daily feed allowance on egg and body parameters, ovarian morphology and plasma glucose, cholesterol, triacylglycerol, leptin-like hormone, nitrite/nitrate and gene expression of inducible nitric oxide synthase (iNOS) in the granulosa layer of F1 follicle, broiler bree
Revista Brasileira de Ciência Avícola. Publicado em: 2010-12
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9. Efficacy of several Salmonella vaccination programs against experimental challenge with Salmonella gallinarum in commercial brown layer and broiler breeder hens
The protective effect of various Salmonella vaccines regimens against an experimental Salmonella Gallinarum challenge (SGNalr strain at 12 wk of age) was evaluated in two experiments. In Experiment 1 commercial brown layers were vaccinated according to one of the following programs: (i) two doses of a SE bacterin (Layermune SE; group 1); (ii) a first dose of
Revista Brasileira de Ciência Avícola. Publicado em: 2009-03
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10. Idade da matriz e período de armazenamento de ovos incubáveis no rendimento de incubação e desempenho inicial de poedeiras comerciais / Breeder hen ages and the storage period of the eggs over the incubation efficiency and starter performance
Two experiments have been carried out to evaluate the effect of the breeder hen ages and of the storage period of the eggs over the incubation efficiency and initial performance of laying hens. In the first experimental phase, 7224 Dekalb eggs with 32 and 57 weeks old, were incubated with three, five and seven days of storage. The treatments were defined acc
Publicado em: 2008
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11. Idade da matriz e período de armazenamento de ovos incubáveis no rendimento de incubação e desempenho inicial de poedeiras comerciais / Breeder hen ages and the storage period of the eggs over the incubation efficiency and starter performance
Two experiments have been carried out to evaluate the effect of the breeder hen ages and of the storage period of the eggs over the incubation efficiency and initial performance of laying hens. In the first experimental phase, 7224 Dekalb eggs with 32 and 57 weeks old, were incubated with three, five and seven days of storage. The treatments were defined acc
Publicado em: 2008
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12. Breeder hen ages and the storage period of the eggs over the incubation efficiency and starter performance / Idade da matriz e período de armazenamento de ovos incubáveis no rendimento de incubação e desempenho inicial de poedeiras comerciais
Two experiments have been carried out to evaluate the effect of the breeder hen ages and of the storage period of the eggs over the incubation efficiency and initial performance of laying hens. In the first experimental phase, 7224 Dekalb eggs with 32 and 57 weeks old, were incubated with three, five and seven days of storage. The treatments were defined acc
Publicado em: 2008