Female Broiler Breeders
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Comparative Study on Carcass Traits, Meat Quality and Taste in Broiler, Broiler Breeder and Aseel Chickens
ABSTRACT Present study evaluated carcass and meat quality attributes of broilers, broiler breeders and Aseel chickens. Sixty birds from each chicken genotype (broiler, broiler breeder and Aseel chickens; five-wk-old broilers and 60-wk-old Aseel chickens and broiler breeders) were evaluated. Birds were maintained under similar environment for 21 days, and the
Braz. J. Poult. Sci.. Publicado em: 09/05/2019
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2. Standard Body Weight and Serum Estradiol and Progesterone Concentrations in Response to Total Lysine Content in Female Broiler Breeders from 14 to 42 Days after Hatch
ABSTRACT This study was conducted to determine the total lysine requirement for female broiler breeders from days 14 to 42. Two-hundred and ten female broiler breeders were used in a completely randomized design with 6 replicates per treatment and 5 chicks per pen under restricted feeding. The contents of total lysine used in this experiment were 0.68, 0.72,
Rev. Bras. Cienc. Avic.. Publicado em: 2018-03
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3. Profile of Serum Metabolites and Proteins of Broiler Breeders in Rearing Age
ABSTRACT The excellence of modern broiler production is based on the genetic improvement of broiler strains for high growth rate and high egg production, associated with technological developments in nutrition, management, and health. Over the last decades, the clinical biochemistry of broilers has been studied to determine serum biochemical component values
Rev. Bras. Cienc. Avic.. Publicado em: 2017-12
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4. Effects of dietary arginine supplementation on broiler breeder egg production and hatchability
This study investigated the effects of arginine (Arg) supplementation on broiler breeder egg production and egg quality. Male (30) and female (360) Ross® breeders, totaling 390 birds, were studied. A completely randomized design with five Arg levels (0.943%, 1.093%, 1.243%, 1.393%, 1.543% digestible Arg) and six replicates of 12 females and one male per exp
Rev. Bras. Cienc. Avic.. Publicado em: 2012-12
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5. Effects of initial body weight and litter material on broiler production
This experiment was carried out in a 104 m² poultry house located between the geographical coordinates 25°45'00" south latitude and 53°03'25" west longitude and an average altitude of 550 m, from September to November, 2008. The chickens were placed in 12 pens measuring 2 m² each at a stocking density of 12 chickens m-2. This study aimed at evaluating th
Revista Brasileira de Ciência Avícola. Publicado em: 2011-09
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6. Hematological values and body, heart and liver weights of male and female broiler embryos of young and old breeder eggs
This study analyzed broiler breeder age (29 or 60 wk-old) effects on physical characteristics of eggs (initial mass, mass loss, volume, diameter, surface area and density) and of eggshells(weight, volume, thickness, conductance, and porosity ), as well as the influence of embryo sex on hematological parameters and body, liver and heart weights during incubat
Revista Brasileira de Ciência Avícola. Publicado em: 2009-03
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7. Correlations among behavior, performance and environment in broiler breeders using multivariate analysis
Animal welfare issues have received much attention not only to supply farmed animal requirements, but also to ethical and cultural public concerns. Daily collected information, as well as the systematic follow-up of production stages, produces important statistical data for production assessment and control, as well as for improvement possibilities. In this
Revista Brasileira de Ciência Avícola. Publicado em: 2007-12
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8. 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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9. Development of a statistical model for the prediction of broiler breeder s welfare based on environment and behavior analysis / Modelo estatistico para predição de bem-estar de reprodutoras de frango de corte baseado em dados de ambiente e analise do comportamento
The study of female broiler breeders is of great importance for the country as broiler production is the third largest export item, and Brazil is the world second largest producer. The study of female breeder behavior is of scientific interest as it searches of specific pattern that may determine health and welfare in those birds. Production housing needs to
Publicado em: 2006
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10. Performance of female broiler breeders submitted to different feeding schedules
The performance of Arbor Acres broiler breeders (1,296 females; 144 roosters) was evaluated when submitted to the following treatments (T): T1 = feeding at 6:30 a.m. (control); T2 = 50% feeding at 6:30 a.m. and 50% at 3:30 p.m. (dual feeding); T3 = feeding at 11:00 a.m.; and T4 = feeding at 3:30 p.m. Treatments were randomly distributed in 48 pens. There wer
Revista Brasileira de Ciência Avícola. Publicado em: 2003-12
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11. Influence of feeding time on sexual maturity and carcass composition in female broiler breeders
One thousand two hundred and ninety six Arbor Acres females and 144 males were used to study the influence of feeding time on sexual maturity and carcass composition. Treatments were: T1 = feeding at 6:30 am, T2 = 50% feeding at 6:30 am and 50% at 3:30 pm (dual), T3 = feeding at 11:00 am, T4 = feeding at 3:30 pm. Nutrition and management were as recommended
Revista Brasileira de Ciência Avícola. Publicado em: 2003-12