Results 31 to 40 of about 16,159 (235)
A Systematic Approach to Solving Hatchability and Chick Quality Problems
EDIS, 2003 A program involving routine analyses of incubating eggs and hatch residue provides a powerful monitoring and diagnostic tool to breeder, broiler, and hatchery managers.
Gary D. Butcher, Amir H. Nilipour
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Sodium Requirement for Broiler Breeder Hens
Poultry Science, 1995 Two experiments were conducted with Arbor Acres hens to determine their Na requirement. Sodium chloride was added to a corn-soybean meal diet to furnish daily intakes of 35, 65, 95, 125, and 150 mg per hen in Experiment 1. The 150 mg level was replaced with 180 mg in Experiment 2. The hens were maintained in floor pens with wood shavings used as litter.
R H, Harms +3 more
openaire +2 more sources
Seroprevalence of avian metapneumovirus infection in broiler and broiler breeder chickens in Iran
Veterinární Medicína, 2011 Avian metapneumovirus causes an acute highly contagious upper respiratory tract infection primarily of turkeys and chickens. The disease can cause significant economic losses in turkey and chicken flocks, particularly when exacerbated by secondary ...
M. Rahimi
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Prevalence of Salmonella in broilers at retail outlets, processing plants and farms in Malaysia [PDF]
, 1996 A study was conducted to estimate the prevalence of Salmonella among broilers retailed at wet-markets and processing plants. Litter and feed samples obtained from both broiler and breeder farms were also examined for Salmonella. A total of 158 out of 445
Cheah, C. T. +4 more
core +1 more source
Copper requirements of broiler breeder hens
Poultry Science, 2018 One-hundred-twenty Cobb 500 hens, 20 wk of age, were randomly allocated into individual cages with the objective of estimating Cu requirements. After being fed a Cu deficient diet for 4 wk, hens were fed diets with graded increments of supplemental Cu (0.0; 3.5; 7.0; 10.5; 14; and 17.5 ppm) from Cu sulfate (CuSO4 5H2O), totaling 2.67; 5.82; 9.38; 12.92;
E, Berwanger +6 more
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Manganese requirements of broiler breeder hens
Poultry Science, 2020 The present research was conducted to assess Mn requirements of broiler breeder hens. One hundred and twenty Cobb 500 hens, 22 wk of age, were individually allocated in cages. After fed a Mn-deficient diet (22.2 ppm), hens were randomly placed in treatments having 6 increments of 30-ppm Mn. All trace minerals were from laboratory grade sources being Mn
T.L. Noetzold +5 more
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Veterinary Research Notes, 2021 Objective: The objective of poultry breeder management is the production of fertilized eggs. The purpose of this study was to see how phytogenic feed additive (PFA) affected hatchable egg production in Cobb 430 Y breeders and the economic ramifications.
Vishwanath Gopal Bhagwat +2 more
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Zinc requirements of broiler breeder hens
Poultry Science, 2019 One hundred and twenty Cobb 500 hens, 20 wk of age, were randomly allocated into individual cages with the objective of estimating their Zn requirements. The study was composed of 3 phases: adaptation to cages (basal diet), depletion (deficient diet containing 18.7 ± 0.47 ppm Zn) for 7 wk, and experimental phases.
A N, Mayer +6 more
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Housing and management of broiler breeders and turkey breeders.
, 2012 AbstractThis chapter describes the housing and management of broiler breeders and turkey breeders in Europe. The majority of broiler breeders in Europe are the standard, fast growing genotype, but 18-20% of the broiler breeders are dwarf parental females that produce standard and alternative (medium or slow growing) broilers.
de Jong, I.C., Swalander, M.
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Brazilian Journal of Poultry ScienceThis study investigated the effect of broiler breeder age on the morphological development of the small intestine broiler embryos (villus height, crypt depth, microvillus height, and villus density) at 20 day of incubation.
A Maiorka +5 more
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