逐渐断奶的山羊羔可能会改善体重增加,同时减少断奶压力和增加爬行料摄入量
Holly M Vickery1, Rachael A Neal1, Sokratis Stergiadis1
1Department of Animal Sciences, University of Reading, Reading, United Kingdom.
Frontiers in veterinary science
|June 19, 2023
概括
乳山羊的逐步断奶可以通过增加固体料摄入量和减少对牛奶的依赖来改善福利. 这种方法对农场来说是可行的,为儿童的发展和福祉提供了潜在的好处.
科学领域:
- 动物科学动物科学
- 乳制品生产 乳制品生产
- 动物福利 动物福利
背景情况:
- 乳山羊养殖场通常会为小孩使用自由选择的牛奶替代品,这可能会阻碍固体料的摄入.
- 突然断奶与福利减少有关,而逐渐断奶策略需要进一步调查.
研究的目的:
- 评估不同逐步断奶策略对乳山羊幼生长,料摄入量和行为的可行性和影响.
- 为了比较突然断奶与两个逐渐断奶协议 (GW1和GW2).
主要方法:
- 实验1:对261名突然断奶 (AW) 和GW2的儿童进行了农场可行性,行为和平均每日收益 (ADG) 的评估. 行为通过CCTV和扫描采样记录.
- 实验2:使用计算机料器和笔级摄入记录,研究了AW和GW2中的料摄入量,行为和ADG.
主要成果:
- GW2儿童在断奶期间增加了固体料摄入量,并在断奶后减少了受挫的哺乳动机.
- 与AW相比,GW2从第35-45天呈现出较高的ADG,并且从第45-55天减少了牛奶摄入量.
- 虽然ADG结果是混合的,但逐渐断奶增加了爬行动物的料摄入量和断奶后的水消耗.
结论:
- 乳山羊养殖场的可行策略是逐渐断奶.
- 逐渐断奶通过增加固体料摄入量和减少对牛奶的依赖来提高幼儿福利.
- 虽然ADG有所不同,但行为改善表明逐渐断奶是一种可推的做法.
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