对影响奶牛牛奶质的危险因素的横截面研究
Marios Moschovas1, Georgios Pavlatos2, Zoitsa Basdagianni3
1Chrisodima Veterinary Services S.H., Andrea Syngrou Avenue 191, 17121 Athens, Greece.
Animals : an open access journal from MDPI
|November 25, 2023
概括
牛乳炎对乳制品经济有重大影响. 长时间的哺乳期会增加体细胞计数 (SCC) 并降低牛奶质量,而乳房问题会恶化体细胞计数和蛋白质含量.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物科学动物科学
- 乳制品生产 乳制品生产
背景情况:
- 牛乳炎给全球乳制品行业带来了重大的经济挑战.
- 牛奶产量下降,牛奶质量下降,治疗费用和过早的牛子杀是主要的后果.
- 有效的管理策略对于减轻乳腺炎的影响至关重要.
研究的目的:
- 确定影响乳牛牛奶质量的关键风险因素.
- 强调适当的挤奶程序的重要性.
- 为改善乳牛群健康和牛奶生产提供见解.
主要方法:
- 一项涉及1004头希腊奶牛场的荷尔斯坦弗里西亚牛的横截面研究.
- 记录每个奶牛的乳腺和乳腺特征.
- 用回归模型 (AIC,stepAIC) 分析个人牛奶样本的体细胞计数 (SCC) 和粗牛奶成分.
主要成果:
- 乳腺炎的患病率约为9%.
- 增加的哺乳期与较高的SCC以及减少的脂肪,蛋白质和乳糖含量相关.
- 乳腺球症与SCC增加和蛋白质含量降低有关.
结论:
- 哺乳期和乳头状况是影响牛奶质量的重要因素.
- 实施适当的养殖管理和挤奶技术对于保持高牛奶质量标准至关重要.
- 解决这些风险因素可以帮助减少乳制品行业的经济损失.
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