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Effect of the Line and Age of Female Broiler Breeder on Hatchability Performance of Eggs [PDF]
Brazilian Journal of Poultry Science, 2023 An experiment was conducted to assess how hatchability performance of eggs is affected by line and age of female broiler breeders. Response variables analyzed were hatchability, infertility, pipping (i.e., pipped shell but not emerged), embryonic ...
OFP Rebolledo +5 more
doaj +2 more sources
Journal of Applied Poultry Research, 2023 SUMMARY: Due to increased demand for broiler chicks, broiler breeder operations are interested in dietary and feeding strategies that can enhance broiler breeder reproduction and improve hatchability.
L P Avila
exaly +3 more sources
Brazilian Journal of Poultry Science, 2019 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 ...
U Khan +8 more
doaj +3 more sources
How concerned should we be about broiler breeder fertility declines? [PDF]
Poultry ScienceBroiler breeder fertility is the bedrock on which modern broiler production rests. Over the last decade, fertility and hatchability issues have emerged as key topics of interest for both breeders and producers.
Giridhar Athrey
exaly +3 more sources
Effect of broiler breeder age on pancreas enzymes activity and digestive tract weight of embryos and chicks [PDF]
Brazilian Journal of Poultry Science, 2004 A study was carried out to evaluate the effect of broiler breeder age on the development of the digestive tract of embryos and chicks. Fertilized eggs Cobb from 30 and 60 week-old broiler breeder was utilized in this experiment.
A Maiorka +5 more
doaj +2 more sources
Is relaxing broiler breeder growth restriction cost-effective? [PDF]
Poultry Science, 2023 : Broiler breeders are subjected to feed restriction programs to control excessive growth. However, current levels of feed restriction and concomitant growth restriction are becoming severe, raising welfare and suboptimal reproductive performance ...
M. Afrouziyeh, V.L. Carney, M.J. Zuidhof
doaj +2 more sources
Metformin modulates the gut microbiome in broiler breeder hens [PDF]
Frontiers in Physiology, 2022 Broiler breeder hens, the parent stock of commercial broiler chickens, are genetically selected for rapid growth. Due to a longer production period and the focus of genetic selection on superior carcass traits in their progeny, these hens have the ...
Emily Van Syoc +13 more
doaj +2 more sources
Brazilian Journal of Poultry Science, 2016 This 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
doaj +3 more sources
Journal of Applied Animal Research, 2019 Effects of multi-strain (Lactofeed) and mono-strain (Pediguard) probiotics on broiler breeder performance and expression of toll-like receptors (TLR) were evaluated.
A Khatibjoo, Mojtaba Zaghari
exaly +2 more sources
Effects of Long-term Induced Hyperthyroidism on Egg Quality Traits in Cobb 500 Broiler Breeder Hens [PDF]
Poultry Science Journal, 2019 Published data on 4-week-long administration of exogenous thyroxine in broiler breeder hens to decline the cold-induced ascites in their progeny suggest that the long-term maternal hyperthyroidism would affect egg quality characteristics traits in Cobb ...
Rostami S +5 more
doaj +2 more sources