一种基于温度湿度指数的新型模型,用于在热带条件下评估泰国本土的精液特性
Wuttigrai Boonkum1, Vibuntita Chankitisakul1, Jiraporn Juiputta2
1Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand, 40002; Network Center for Animal Breeding and Omics Research, Khon Kaen University, Khon Kaen, Thailand, 40002.
Poultry science
|May 31, 2025
概括
开发了一个新的温度和湿度指数 (THI) 函数 (THI_F),以更好地预测热应激对精液特征的影响. 这种改进的指数有助于提高家禽的耐热性.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 环境生理学环境生理学
背景情况:
- 温度和湿度指数 (THI) 对于评估家禽生产中的热应激至关重要.
- 现有的THI不足以准确预测对生殖特征的影响.
研究的目的:
- 开发和验证一种新的THI函数 (THI_F),用于预测泰国的精液质量.
- 为了建立一个可靠的指标,对热应激影响的繁殖性能.
主要方法:
- 在一年内从242只泰国本土公收集了精液数据 (体积,质量运动性,精子度).
- 通过标准化和总结关键的精液参数,开发了一个复合的"精液指数".
- 利用回归分析来确定最佳的THI功能和影响精液特征的值.
主要成果:
- 新的THI函数 (THI_F) 与原来的THI1.1相比,在预测热应激发生方面表现出更好的适应性.
- 76的THI值被确定为观察精液特征变化的关键值.
- 统计标准 (SSE,AIC,BIC) 证实了THI_F在表示热应力方面的可靠性提高.
结论:
- 开发的THI_F提供了一个更精确的工具来评估热应激对生殖性能的影响.
- 这一指数对遗传选择和育种策略有价值,以提高家禽的耐热性.
- 提高耐热性对于在气候变化下保持牲畜生产率至关重要.
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