Results 71 to 80 of about 2,222 (233)

Effect of restricted feed intake in broiler breeder hens on their stress levels and the growth and immunology of their offspring1 [PDF]

, 2018
The prenatal environment has been shown to have significant effects on the lifelong health of offspring in humans and other species. Such effects have not been studied extensively in avian species but could prove important, especially in the case of ...
Sarah Weaver, Robert J Hughes, Philip Ian Hynd, Rebecca Forder, Mandy Bowling   +4 more
core   +1 more source

Heat Stress in Quail: Impacts on Health and Productivity, and Mitigation Strategies

Animal Research and One Health, EarlyView.
Heat stress disrupts physiological homeostasis in quail, inducing oxidative stress, immune dysregulation, and metabolic imbalance, which impair growth, reproduction, product quality, and welfare. Integrating nutritional, environmental, and genetic–epigenetic strategies enhances thermotolerance, sustains productivity, and supports climate‐smart quail ...
T. A. Eletu, I. A. Anjola, L. O. Fasasi, D. P. Fadipe, A. T. Afuye, F. O. Fasanya, O. E. Oke   +6 more
wiley   +1 more source

Effects of dietary iron on reproductive performance of Chinese Yellow broiler breeder hens during the egg-laying period

Poultry Science, 2020
: The objective of this study was to investigate the effects of dietary iron (Fe) on reproductive performance of Chinese Yellow broiler breeder hens during the egg-laying period.
Zhongyong Gou, Qiuli Fan, Long Li, Zongyong Jiang, Xiajing Lin, Xiaoyan Cui, Yibing Wang, Chuntian Zheng, Shouqun Jiang   +8 more
doaj   +1 more source

Feed allowance-genotype interactions in broiler breeder hens

Poultry Science, 2005
Ad libitum feeding reduces livability and reproductive fitness in broiler breeder hens. Two genotypes, a standard (S) and an experimental dwarf broiler breeder (E), were fed ad libitum (SA and EA, respectively), restricted at 55% of ad libitum feed intake (intermediate restriction) from 6 to 15 wk of age (SI and EI, respectively), or restricted (SR and
Bruggeman, V., Onagbesan, O., Ragot, O., Metayer, Sonia, Skiba, Sandrine, Favreau, Florence, Jégo, Y., Trevidy, J.J., Tona, Kokou, Williams, J., Decuypere, Eddy, Picard, M.   +11 more
openaire   +5 more sources

Initial insemination interval: One approach to improving turkey fertility

California Agriculture, 1983
In the past 30 years, there have been decided increases in the reproductive efficiency of turkeys. Refinements in artificial insemination techniques have eliminated problems associated with natural mating, such as injury to the hen, clumsiness of the ...
F Bradley, F Ogasawara
doaj  

Effect of Cyclic Heat Exposure on the Growth Performance and Metabolism of Broilers Fed Palm Kernel Meal

Animal Research and One Health, EarlyView.
The aim of our study is to evaluate the interaction between HS and the incorporation of PKM in broiler chicken diets, as well as its effect on growth performance and metabolism. Based on the results obtained, PKM supplementation failed to mitigate the adverse effects of heat stress in broiler chickens. ABSTRACT The aim of this study was to evaluate the
Ahmed Mijiyawa, Elham Ghashghaei, Okasha Hamada, Huimin Wang, Lijing Sun, Yendouhamtchié Nadiedjoa, Dan Wang, Zhengkai Yue, Clarice Maa Maa Temhoul, Maxwell Ansong Okai, Muhammad Faisal Riaz, Felix Kwame Amevor, Wéré Pitala, Hai Lin   +13 more
wiley   +1 more source

Evaluation of the Chloride Requirement of the Broiler Breeder Hen

Brazilian Journal of Poultry Science, 2000
Two experiments wore conducted to evaluate the chloride requirement of the broiler breeder hen. Experiments were conducted for a twelve-week period and seven experimental diets wore fed. The diets contained the following dietary chloride levels: 0.
Harl JC, Harms RH, Wilson HR, Russel GB
doaj  

Effects of dietary vitamin E supplementation on laying performance, hatchability, and antioxidant status in molted broiler breeder hens

Journal of Applied Poultry Research, 2021
SUMMARY: Dietary vitamin E supplementation has been indicated to enhance the antioxidant capacity of breeders. As breeders age, the productive and reproductive performance rapidly decline, and dietary vitamin E supplementation may play a positive role in
J. Yang, X.M. Ding, S.P. Bai, J.P. Wang, Q.F. Zeng, H.W. Peng, Y. Xuan, Z.W. Su, K.Y. Zhang   +8 more
doaj   +1 more source

Induction of eggshell apex abnormalities in broiler breeder hens [PDF]

Avian Pathology, 2010
Recently, the causal relationship between eggshell apex abnormalities (EAA) and Mycoplasma synoviae was described. This eggshell pathology has only been documented in table egg layers both spontaneously and experimentally infected with M. synoviae, suggesting that meat-type layers are less prone to this condition.
Feberwee, A., Landman, W.J.M.
openaire   +4 more sources

Comprehensive Characterization of Acer truncatum Leaf Extract: Identification of Systemic Metabolites and Effects on Performance, Antioxidant Status, and Intestinal Microbiota in Laying Hens

Animal Research and One Health, EarlyView.
Dietary A. truncatum leaf extract is absorbed and improves laying performance in aged hens by enhancing systemic antioxidant capacity and modulating the gut microbiota. ABSTRACT The demand for natural feed additives is considerably increasing in the antibiotic‐free feed era.
Kailong Qin, Jiantao Yang, Minglu Gao, Xiaozhao Tao, Xin Yang, Yanli Liu, Xiaojun Yang   +6 more
wiley   +1 more source