周周的反和活动时间的模式在多卵性霍尔斯坦牛在早期哺乳期有或没有失血症
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1Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853.
Journal of dairy science
|February 8, 2024
概括
牛的失血症是一种血中低的情况,可以通过产后的活动和反活动的监测来确定. 这种方法有助于早期检测和治疗失血症,改善群体健康.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物科学动物科学
- 牛奶牛的营养 牛奶牛的营养
背景情况:
- 乳牛患有失血症 (血中低) 与乳牛产量降低,生育问题和健康问题有关.
- 目前的牛场测试难度很高,需要使用替代的诊断方法.
- 活动和反活动的监测提供了一种潜在的非侵入性方法来识别失质血症.
研究的目的:
- 为了研究患有失血症和高血症的奶牛之间的周周活动和反模式的差异.
- 评估使用活动和反动物数据来检测乳牛中缺血症的疗效.
主要方法:
- 对两个群体182头多双的荷尔斯坦牛的数据进行了回顾性分析.
- 使用耳朵或子记录器从产前14天到产后14天收集的活动和反数据.
- 在分娩后4天 (DIM) 被归类为失血症 (血≤2.2 mmol/L) 或高血症的奶牛.
- 使用线性混合模型和后勤回归的统计分析.
主要成果:
- 产后高血症奶牛的活力和反时间显著增加,相比低血症奶牛的活力和反时间明显增加.
- 产前活动和反时间在两组之间没有显著差异.
- 后勤回归模型显示,使用产后活动和反数据识别失血症的准确度中等 (70.377.0%),特异性高 (91.294.4%).
结论:
- 产后活动和反活动的监测可以帮助识别患有失质血症的奶牛.
- 这种方法为早期检测提供了一个实用的工具,有可能改善管理策略并减轻负面健康结果.
- 需要进一步的研究,以提高活动和反活动监测的预测能力,以检测缺血症.
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