| 辛海云，李宝红，孟繁明，王塑天，胡 斌，李剑豪，杜宗亮.定时输精技术在母猪繁殖中的应用研究进展[J].广东农业科学,2021,48(8):106-115 |
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定时输精技术在母猪繁殖中的应用研究进展 |
| Research Progress of Timed Artificial Insemination in Sow Reproduction |
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| DOI：10.16768/j.issn.1004-874X.2021.08.013 |
| 中文关键词: 母猪 定时输精 批次生产 生殖激素 繁殖调控 激素安全 |
| 英文关键词: sow timed artificial insemination batch production reproductive hormone reproductive regulation hormone safety |
| 基金项目:清远市创新创业科研团队项目（2018002）；广东省农业科学院院长基金（201911）；清远市科技计划项目（DZXQY012）；广东省科技专项资金（201106166270779） |
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| 中文摘要: |
| 我国生猪养殖业对集约化、规模化、高效化的养殖需求逐渐增强。传统发情鉴定和配种方式需
要大量的人力劳动和时间成本，且易导致母猪生产延误甚至被淘汰。母猪定时输精是人工授精和同期发情技
术联合产生的一项创新技术，通过添加外源合成激素对母猪体内的生殖激素进行分泌调控，从而调节卵泡的
发育状况，使大量母猪在特定时间内集中表现发情症状、排卵，并对母猪进行批量输精配种。该技术能降低
查情依赖性、减少隐性发情而造成的生产损失、增加母猪年产胎次数和提高母猪繁殖利用率，有利于猪群“全
进全出”和防疫消毒，减少疫病交叉感染。但定时输精技术引入我国时间较短，存在效果不稳定、胚胎数增
加不明显等问题，需要深入研究和解决。综述了母猪体内生殖激素的繁殖调控规律，针对不同生产阶段母猪
开展定时输精技术的途径，分析各类激素的应用效果及影响激素效果的关键因素，为优化定时输精技术方案、
提高母猪繁殖管理水平提供参考。 |
| 英文摘要: |
| The demand for intensive, large-scale and effective breeding pattern is growing in pig breeding industry.
Traditional estrus detection and insemination methods are time-consuming and expensive while more likely to be delayed
in sow reproduction. Timed artificial insemination（TAI）is an innovative technology combining the artificial insemination and estrus synchronization. It helps to regulate reproductive hormones secretion and the follicular development in sows by
adding exogenous synthetic hormones to make sows show estrus, ovulate and be inseminated during a given time. Moreover,
this technology contributes to reducing the dependence on estrus detection, production loss caused by recessive estrus and
crossing infection, and helps increase sows’reproduction frequency per year and reproductive rate as well as facilitate
epidemic prevention. However, TAI has been introduced into China for a short time, and it still has many problems, including
unstable effects and insignificant increase in the number of embryos, which need further researches and solutions. This article
summarizes the regulation law of reproductive hormones in sows as well as the ways to develop TAI for sows at different stages
of production, and analyzes the application effects of various hormones and key factors affecting hormone effects to provide a
reference for optimizing TAI procedure and improving reproductive management level for sows. |
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