| 奶牛生殖激素和体温的性周期变化及调控机制研究进展 |
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| 引用本文： | 田宏志,刘江静,陈晓丽,李蓝祁,李欣,李茹意,王栋.奶牛生殖激素和体温的性周期变化及调控机制研究进展[J].中国畜牧杂志,2019(2):27-32. |
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| 作者姓名： | 田宏志 刘江静 陈晓丽 李蓝祁 李欣 李茹意 王栋 |
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| 作者单位： | 1.中国农业科学院北京畜牧兽医研究所;2.吉林农业大学动物科技学院;3.湖南农业大学动物科技学院 |
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| 基金项目： | 重点研发计划项目(2017YFD0501903);奶牛产业技术体系北京市创新团队项目(BAIC06-2018) |
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| 摘 要： | 随着养殖的集约化程度逐渐提高,传统高耗低效的发情鉴定方法制约了奶牛养殖的经济效益。定时输精技术虽跨越了发情鉴定环节,但未获得理想的受胎率。本文对奶牛卵泡发育过程中生殖激素的变化规律以及雌激素、孕激素、生长因子等对卵泡生长发育的调控作用展开论述,并分析了奶牛体温的性周期变化规律及外源激素对体温的影响,为优化提高同期排卵-定时输精技术及推动奶牛养殖业集约化、智能化、标准化发展提供科学参考。
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| 关 键 词： | 奶牛 体温 生殖激素 卵泡发育 |
Research Progress on Sexual Cycle Changes and Regulatory Mechanisms of Reproduction Hormone and Body Temperature in Dairy Cows |
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| TIAN Hong-zhi,LIU Jiang-jing,CHEN Xiao-li,LI Lan-qi,LI Xin,LI Ru-yi,WANG Dong.Research Progress on Sexual Cycle Changes and Regulatory Mechanisms of Reproduction Hormone and Body Temperature in Dairy Cows[J].Chinese Journal of Animal Science,2019(2):27-32. |
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| Authors: | TIAN Hong-zhi LIU Jiang-jing CHEN Xiao-li LI Lan-qi LI Xin LI Ru-yi WANG Dong |
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| Institution: | ,Institute of Animal Sciences of Chinese Academy of Agricultural Sciences,College of Animal Science and Veterinary Medicine,Jilin Agricultural University,College of Animal Science and Veterinary Medicine,Hunan Agricultural University |
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| Abstract: | With the development of intensity, traditional high-energy and low-efficiency estrus identification methods have restricted the economic benefits of dairy farming.Although the technology of Timed Afrtificial Insemination spans estrus identification process, it does not achieve the ideal conception rate. This paper reviews the changes of reproductive hormones during follicular development in dairy cows, as well as the regulatory action of estrogen, progesterone and growth factor on the growth and development of follicles, and analyses the regularity of the sexual cycle of body temperature and the effect of exogenous hormones on body temperature in dairy cows.The related research is expected to optimize and improve the technology of Ovsynch-Timed Afrtificial Insemination and promote the intensive, intelligent and standardized development of dairy farming. |
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| Keywords: | Dairy cows Body temperature Reproduction hormone Follicular development |
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