Results 51 to 60 of about 296,059 (170)

The Chicken and the Egg

, 1993
“Which came first, the chicken or the egg?” For all its innocence, this is a question which, as this paper will show, obliges one to think deeply about the terms in which one ultimately seeks to explain biological systems. “A hen is only the egg’s way of making another egg”, in Butler’s (1878)1 apt phrase, sums up the view that organisms can most ...
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A Spherical Chicken

Science, 1973
Letter to the editor, published in Science (magazine).
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Chimeric Chickens and Their Use in Manipulation of the Chicken Genome

Poultry Science, 1993
Germline chimeric chickens can be made by injecting dispersed cells from Stage X blastoderms into recipient embryos at an equivalent stage of development. Colonization of the chimera by donor-derived cells is facilitated when the recipient embryo is compromised by exposure to irradiation prior to injection of the donor cells.
R J, Etches, R S, Carsience, M E, Clark, R A, Fraser, A, Toner, A M, Verrinder Gibbins   +5 more
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Single-cell RNA sequencing uncovers cellular heterogeneity of granulosa cells and provides a signature for follicular development in chicken

Poultry Science
Functional differentiation of the granulosa cell (GC) layer plays an essential role in follicular development and oocyte maturation in birds. However, despite the importance of GCs, heterogeneity within the granulosa layer across poultry species remains ...
Shigang Yu, Xuemei Shen, Gang Wang, Juan Liao, Jia Chen   +4 more
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The SNPs C.513A>T in the MHC B-F gene and rs15001532 in the SPOCK1 gene are associated with Salmonella pullorum disease resistance in chickens

Journal of Integrative Agriculture, 2016
This study was designed to identify molecular markers single nucleotide polymorphisms (SNPs) of MHC B-F gene and SPOCK1) associated with Salmonella pullorum disease susceptibility/resistance. A two-stage case-control association study was used.
Ze-tang ZHANG, Jian-kang GAN, Wen-wu ZHANG, De-xiang ZHANG, Xi-quan ZHANG, Qing-bin LUO   +5 more
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Effects of Dietary Supplementation with dl-Methionine and dl-Methionyl-dl-Methionine in Breeding Pigeons on the Carcass Characteristics, Meat Quality and Antioxidant Activity of Squabs

Antioxidants, 2019
This study aimed to investigate the effects of dietary supplementation with dl-methionine (dl-Met) and dl-methionyl-dl-methionine (dl-Met-Met) in breeding pigeons on the carcass characteristics, meat quality and antioxidant activity of squabs. A total of
Shi-Guang Jiang, Neng-Xia Pan, Meng-Jie Chen, Xiu-Qi Wang, Hui-Chao Yan, Chun-Qi Gao   +5 more
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Localization and expression of C1QTNF6 in chicken follicles and its regulatory effect on follicular granulosa cells

Poultry Science
C1q/tumor necrosis factor-related protein 6 (C1QTNF6) is a newly discovered adiponectin analog that plays a significant role in female reproduction. However, its expression and function in chickens remain unclear.
Chong Li, Qi Li, Xing Wu, Zihao Zhang, Jing Li, Ruirui Jiang, Guoxi Li, Xiaojun Liu, Xiangtao Kang, Zhuanjian Li, Donghua Li, Yadong Tian   +11 more
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Unraveling the regulatory mechanisms of fasting-induced molting on follicle development in laying hens

Poultry Science
Fasting-Induced Molting (FIM) has been shown to enhance the laying rate and extend the laying cycle of hens in the late laying period. However, the precise regulatory mechanism underlying FIM’s effects on follicle development remains unknown.
Yidan Zhu, Pengyu Wang, Yujie Gong, Yadong Tian, Donghua Li, Shizheng Zhou, Yanhua Zhang, Xiangtao Kang, Yujie Guo, Yujian Lu, Ruirui Jiang   +10 more
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Variations in chickens [PDF]

Nature, 1987
D, Conrad, T G, Parslow
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Marine red yeast supplementation improves laying performance by regulating small intestinal homeostasis in aging chickens

Animal Nutrition
Recent studies have shown that age-related aging evolution is accompanied by imbalances in intestinal homeostasis. Marine red yeast (MRY) is a functional probiotic that has been shown to have antioxidant, immune and other properties.
Yudian Zhao, Sujin Si, Yangguang Ren, Xing Wu, Zihao Zhang, Yixiang Tian, Jing Li, Yijie Li, Meng Hou, Xueyang Yao, Zhaoheng Xu, Ruirui Jiang, Xiangtao Kang, Yujie Gong, Qiang Li, Yadong Tian   +15 more
doaj   +1 more source