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Removal of roosters alters the domestic phenotype and microbial and genetic profile of hens.

Science China. Life sciences - 1 Nov 2021

Xiang Hai, Chen Siyu, Zhang Hui, Zhu Xu, Wang Dan, Liu Huagui, Wang Jikun, Yin Tao, Liu Langqing, Kong Minghua, Zhang Jian, Li Hua, Turner Simon, Zhao Xingbo

Abstract excerpt

Hens are raised apart from roosters in modern poultry production, a substantial change from their natural social structure. We compared productivity, injuries, behavior, physiology, microbiome and transcriptome of hens housed with (R+) or without (R-) roosters to quantify the effects of this change in social structure. Hens were raised free-range from 70 to 280 days when 30 birds per treatment were assigned to...

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PMID: 33587265
DOI: 10.1007/s11427-020-1770-1

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