牛肉行业发展规划的重要性
George A Perry1, Thomas H Welsh2
1Texas A&M AgriLife Research and Extension Center, Overton, TX 75684, United States.
Animal reproduction science
|May 3, 2024
概括
发展规划影响到牛肉生产的利能力. 在整个行业中,孕妇的营养和妊娠期间的压力会影响后代的生长,尸体的特征和生殖成功.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 农业经济学 农业经济学
背景情况:
- 牛肉行业包括不同的细分领域:牛犊,养/料和肉类包装.
- 由母亲的营养和环境影响的发育编程,可以改变后代的特征.
- 了解这些影响对于优化整个牛肉生产部门的利能力至关重要.
研究的目的:
- 评估发展规划对牛肉行业关键生产特征的影响.
- 确定孕期的关键窗口,其中母亲的刺激会影响后代的表现.
- 评估孕产妇压力和营养对肉牛的跨代影响.
主要方法:
- 对肉牛发育规划现有文献的综述.
- 分析不同妊娠期期间检查营养限制和非营养压力的研究.
- 对胚胎存活率,卵巢储备,受孕率,断奶体重和尸体特征的影响的评估.
主要成果:
- 孕期早期的营养限制会对胚胎存活率和母牛卵巢储备产生负面影响.
- 妊娠中期到晚期的限制降低了女儿的受孕率和怀孕成功率.
- 在妊娠的最后三分之一期间,母亲的营养限制会降低断奶重量,尸体重量和大理石化.
- 怀孕晚期的蛋白质补充可以改善断奶体重和生长,但可能会影响眼区域.
结论:
- 发展规划显著影响牛肉生产特征,影响各个部门的利能力.
- 特定的孕期窗口对于减轻对肌肉纤维发育和随后生长的负面影响至关重要.
- 需要进一步的研究,才能将发展规划知识完全整合到行业实践中,以提高效率和经济成果.
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