Broiler Breeder Hens
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. 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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2. 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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3. 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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4. 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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5. 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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6. 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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7. 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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8. Methodologies for modelling energy and amino acid responses in poultry
The objective of this paper is to present some of the issues faced by those whose interest is to predict responses in poultry, concentrating mainly on those related to the prediction of voluntary food intake, as this should be the basis of models designed to optimise both performance and feeding programmes. The value of models designed to predict growth or r
Revista Brasileira de Zootecnia. Publicado em: 2007-07
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9. NÍVEIS BAIXOS DE AFLATOXINAS DIETÉTICAS E ADSORVENTES NO DESEMPENHO DE MATRIZES DE CORTE E DE SUA PROGÊNIE / LOW LEVELS OF DIETARY AFLATOXINS AND ADSORBENTES IN THE BROILER BREEDER HENS AND PROGENY PERFORMANCE
Este estudo foi realizado para investigar o efeito do consumo de aflatoxinas e adsorventes (glucomananos esterificados) por matrizes de corte sobre aspectos produtivos e reprodutivos, além de verificar os efeitos residuais sobre a progênie. Foram realizados quatro experimentos, sendo o primeiro composto por 240 matrizes submetidas a níveis crescentes de a
Publicado em: 2007
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10. Doença de Gumboro : influência dos anticorpos maternos sobre as vacinações "in ovo", injentável e na água de bebida e desempenho de frangos de corte.
A comparison of vaccinating 18-day embryos (in ovo) or chicks at the 1st day or 15th day post hatch against infectious bursal disease (IBD) was performed. The experimental embryos and chicks were progeny of industrial broiler breeders with high (given IBD oil-emulsion vaccine) or low (not given IBD oil-emulsion vaccine) serum antibody titers against IBD viru
Publicado em: 2007
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11. Métodos de desinfecção e princípios ativos desinfetantes e a contaminação, mortalidade embrionária e eclodibilidade de ovos e embriões de aves / Methods of disinfection and disinfectant active principles and the contamination, embryo mortality and hatchability of eggs and embryos of broiler breeder hens
Foram conduzidos dois experimentos com o objetivo de avaliar a eficiência de diferentes princípios ativos desinfetantes e dois métodos de desinfecção de ovos: pulverização e imersão. As desinfecções foram conduzidas na granja de reprodutoras imediatamente após a postura dos ovos. Em cada experimento, houve um tratamento com fumigação e um grupo
Publicado em: 2007
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12. Campylobacter sp in organs and meconium of day-old broiler chicks derived from naturally infected breeder hens
Campylobacter sp is an important agent that causes foodborne infection, particularly in food of poultry origin. Therefore, the efficient control of the transmission routes in chicken farms is of outmost importance to prevent it from spreading. In chicken farms, the main transmission route of this microorganism is horizontal, as the vertical route continues t
Revista Brasileira de Ciência Avícola. Publicado em: 2006-12