用自动化奶系统与自动化养机器人或没有自动化养机器人使用的牛群之间的料堆营养的一致性,牛奶生产和奶牛行为的比较
Kevin Kamau1, Benjamin Thorpe2, Katie E Meier2
1Department of Animal Science, University of Minnesota, St. Paul, MN 55108, USA.
Animals : an open access journal from MDPI
|April 26, 2025
概括
与传统养系统相比,奶牛场的自动养机器人 (AFR) 减少了料的变化,并增加了牛奶中的新脂肪酸合成. 使用AFR的奶牛也更频繁地访问自动化挤奶系统 (AMS).
科学领域:
- 乳制品科学 乳制品科学
- 动物营养 动物营养
- 农业工程 农业工程
背景情况:
- 自动养机器人 (AFR) 正在在北美乳制品农场获得吸引力,以缓解劳动力短缺.
- 与传统养系统 (CFS) 相比,AFR系统在料混合,交付和位管理方面提供了更大的灵活性.
研究的目的:
- 为了比较配给一致性,牛奶成分,牛奶脂肪酸概况,以及使用AFR与CFS的牛群中的牛行为.
- 评估AFR对商业乳制品业务中料变化和牛奶生产指标的影响.
主要方法:
- 一项涉及美国中西部上部16家商业奶牛农场的观察性研究,将它们配对成八个区块 (AFR与CFS).
- 对营养素和颗粒大小变化 (CV) 的料库样本的分析,以及对成分和脂肪酸概况的散装牛奶样本的分析.
- 收集关于自动化挤奶系统 (AMS) 访问,牛奶产量,成分和反时间的数据.
主要成果:
- 在料库样本中,AFR群体对干物质,ADF,NDF和红素的变化系数 (CV) 较低.
- 在AFR和CFS群体之间,没有观察到大量油箱牛奶脂肪,蛋白质或牛奶尿素 (MUN) 的显著差异.
- 在AFR群体中,牛奶中新合成脂肪酸的比例更高,AMS检查频率增加,拒绝更多.
结论:
- AFR系统与床上料纤维含量的每日变化减少有关.
- 增加乳腺新生脂肪酸合成和更频繁的母牛访问AMS与AFR实施有关.
- 与传统养方法相比,AFR可能对料的一致性有好处,并影响牛奶脂肪合成途径.
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