循环甲状腺激素和血清激素在多胎母牛中,分娩后血清度不同
1Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853.
Journal of dairy science
|September 10, 2023
概括
乳牛的亚临床低血症 (SCH) 显示出产后的不同动态. 过渡性SCH的奶牛的结果更好,这表明在延迟或持续的SCH病例中,平衡的潜在干扰.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物科学动物科学
- 内分泌学 在内分泌学.
背景情况:
- 多母乳母牛经常经历分娩后的亚临床低血症 (SCH).
- 牛乳的动态影响牛的健康和牛奶生产的结果.
- 了解 (Ca) 恒温调节媒介对于管理SCH至关重要.
研究的目的:
- 为了研究不同SCH动态的奶牛之间的Ca稳态调解者的差异.
- 将奶牛分为常态血 (NC),短暂的SCH (tSCH),延迟的SCH (dSCH) 和持久的SCH (pSCH) 组.
- 为了分析血清总 (tCa),甲状腺前激素 (PTH) 和血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清.
主要方法:
- 对89只多夫妇的荷尔斯坦牛进行前性队列研究.
- 根据1天和4天牛奶中的血清tCa (DIM) 将SCH分为四个组.
- 从分娩前到10 DIM取血样,分析tCa,PTH和血清素;使用重复测量ANOVA进行统计分析.
主要成果:
- 产后tCa在SCH组之间有显著的差异,pSCH奶牛的水平最低.
- 与NC和 tSCH相比,dSCH和pSCH的母牛的产后PTH平均度在数值上更高.
- 血清激素水平在不同组中是相似的,并显示出循环模式.
结论:
- 在SCH组之间观察到产后PTH的假设差异,这表明dSCH和psch奶牛的潜在Ca稳态中断.
- 需要进一步的研究来证实PTH在不同SCH动态中的作用.
- 了解这些差异可以为SCH的预防,管理和治疗策略提供信息.
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