在德国巴伐利亚州的西门特尔奶牛哺乳期的身体状况和牛奶参数之间的关系
Theresa Rabus1, Andreas W Oehm1, Gabriela Knubben-Schweizer1
1Clinic for Ruminants with Ambulatory and Herd Health Services, Ludwig-Maximilians Universität Munich, Sonnenstrasse 16, 85764 Oberschleissheim, Germany.
Preventive veterinary medicine
|October 9, 2023
概括
在Simental奶牛中,过度培养比不足培养更为常见,特别是在哺乳期中期和干旱期. 牛奶蛋白质含量与这些牛的身体状况得分的关联最强.
科学领域:
- 动物科学动物科学
- 乳牛管理 乳牛管理
- 生殖生理学 生殖生理学
背景情况:
- 奶牛的身体状况反映了能量储备,影响健康,福利和生产力.
- 偏离理想的身体状况 (过度或不足) 会对奶牛的生产力产生负面影响.
- 与荷尔斯坦弗里西亚人相比,西门特牛的身体状况偏差存在有限的研究.
研究的目的:
- 为了调查在哺乳期的不同阶段,过度和不足条件的Simmental奶牛的患病率.
- 为了分析身体状况得分与生产参数 (牛奶产量,脂肪,蛋白质) 之间的关联,西蒙特牛.
- 为了确定具有挑战性的哺乳期,以保持西门特牛的最佳身体状况.
主要方法:
- 研究了巴伐利亚农场的Simmental奶牛,根据平价 (primiparous/multiparous) 将它们分类.
- 评估身体状况及其在分娩后几天 (dpp) 的流行情况.
- 与牛奶产量,牛奶脂肪和牛奶蛋白质含量相关的身体状况.
主要成果:
- 在Simmental奶牛中,过度培养比缺乏培养更为普遍.
- 中期哺乳期 (100-199dpp) 显示出更高的过度条件;干旱期 (<0&>299dpp) 显示出更高的不足条件.
- 牛奶蛋白质含量在所有哺乳阶段表现出与过度和不足条件的最强相关性.
结论:
- 干旱期和哺乳期中期是管理西蒙特牛身体状况的关键阶段.
- 较高的牛奶蛋白含量与过度条件的可能性增加和不足条件的可能性降低相关.
- 这些发现为改善西门特尔奶牛的育种,健康,福利和牛奶生产提供了基础.
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