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Updated: Jan 25, 2026

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在高产母猪中助产和新生儿挑战的发生率:来自实地研究的见解
1Veterinary Clinic for Reproductive Medicine and Neonatology, Justus-Liebig-University Giessen, Germany.
Theriogenology
|January 23, 2026
概括
繁殖时间和住房显著影响母猪的繁殖成功和小猪的活力. 抑郁症,更长的分娩和箱子住房增加了母猪和小猪的风险,影响了死亡率.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 兽医医学 兽医医学 兽医医学
背景情况:
- 过度繁殖的母猪在生育方面面临挑战,原因是 litter 尺寸增加和dystocia 的潜力.
- 住房系统可以影响繁殖动态,母猪福利和小猪的结果.
- 了解影响繁殖的因素对于提高猪生产效率和动物健康至关重要.
研究的目的:
- 分析高产母猪的生殖参数,重点关注生育动态,养系统和小猪活力.
- 为了研究分娩时间,均等性, litter 尺寸和分娩并发症之间的相关性.
- 评估不同住房系统 (CRATE, PEN, GROUP,自由发育) 对发育结果和小猪死亡率的影响.
主要方法:
- 实地研究涉及69只健康的多产母猪.
- 收集关于怀孕时间,生育时间,幼大小,分娩间隔 (BPI) 和产科干预措施的数据.
- 评估母猪和小猪的活力,包括部破伤,子宫收缩,分数和第一周死亡率.
- 在不同的住房系统中以及在dystocic和eutocic母猪之间比较生育结果.
主要成果:
- 平均孕期长度为114.5天;繁殖时间平均为267.6分钟,与均值和 litter 尺寸有积极的关联.
- 相比于eutocic母猪 (分别为193.1分钟和10.49分钟),dystocic母猪的分娩时间 (324.9分钟) 和BPI (24.74分钟) 显着更长.
- 产科干预和严重的部伤在CRATE住房中更为频繁. 随着生育时间的延长,小猪的活力下降,在PEN和GROUP系统中,第一周死亡率最高.
结论:
- 住房系统,繁殖时间和均等性是影响繁殖结果,母猪健康和小猪生存的关键因素.
- 箱子住房与增加的偏心,干预和母猪受伤有关,而PEN和GROUP系统显示较高的早生猪死亡率.
- 优化住房和管理生育时间对于减少新生儿损失和改善猪整体生殖表现至关重要.
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