与过度繁殖母猪生育辅助相关的因素
Napatsawan Wongwaipisitkul1, Yanwarut Chanpanitkit1, Natthacha Vaewburt1
1Department of Obstetrics, Gynaecology, and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand.
Animal bioscience
|September 1, 2023
概括
高产母猪的产卵援助与平价相关,老母猪需要更多的帮助. 需要帮助的小猪消耗的胆乳较少,血液中氧和度较低,需要特别照顾.
科学领域:
- 动物科学 动物科学
- 生殖生物学 生殖生物学
- 猪生产 生产 猪生产
背景情况:
- 过度繁殖的母猪往往需要由于 litter 尺寸大而需要生育援助.
- 热带地区的环境因素可能会影响繁殖动态.
- 了解生育援助对于优化小猪生存和母猪福利至关重要.
研究的目的:
- 确定热带环境中高产母猪生育辅助的风险因素.
- 评估生育援助对小猪母乳摄入量的影响.
- 评估助产对母猪胆乳产量的影响.
主要方法:
- 分析了泰国5个商业群体352只兰德雷斯×约克郡杂交母猪的繁殖数据.
- 根据平价数 (1,2-4,5-6,≥7) 和 litter 尺寸 (TB: 10-13, 14-16,≥17) 的母猪的分类.
- 调查生育援助发生率和相关参数,包括小猪乳酪消费量和母猪乳酪产量.
主要成果:
- 29.8%的母猪需要分娩辅助,群体变化很大 (5.7%53.3%).
- 与较年轻的母猪相比,具有较高的平价数 (≥7) 的母猪在分娩援助的频率更高.
- 需要辅助的母猪产生的小猪的乳母乳消耗较低 (302.2g与354.2g相比),血液中氧和率较低 (87.8%与90.4%相比).
结论:
- 播种平价数量是影响生育援助需求的重要因素.
- 生育援助没有影响母猪胆乳产量,但对小猪胆乳摄入量产生了负面影响.
- 辅助生猪需要有针对性的照顾,以改善氧化和确保适当的乳母吸收.
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