人工养的母绵羊不能从自然养的母绵羊中区分出来,这取决于观察到的母绵羊的行为或羊羔的断奶体重
Christian J Posbergh1, Asha M Miles2, Natasha L Pettifor3
1Department of Animal & Range Sciences, Montana State University, Bozeman, MT 59717, USA.
Journal of animal science
|September 21, 2024
概括
人工养的母羊羔表现出与母亲相似的行为,并且与自然养的母羊相比,不会对羊羔生长性能产生负面影响. 这些发现表明,人工养的母羊是羊生产中合适的替代候选人.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 绵羊生产 绵羊生产
背景情况:
- 人工养羊羔对于通过更大的 litter 尺寸来提高羊的生产力至关重要.
- 一个常见的误解是,人工养的母羊会成为不合适的母亲.
- 这种看法可能会阻碍采用高效的绵羊管理实践.
研究的目的:
- 为了调查人工和自然养的母羊之间的母行为潜在的差异.
- 评估母养殖类型对羔羊生长表现的影响.
- 提供数据驱动的洞察力,了解人工养母羊的孕产妇能力.
主要方法:
- 四十八只母羊被分为四组,根据养殖类型 (人工与自然) 和平等性 (原生与多生).
- 在分娩期间和分娩后,使用远程摄像头记录了母亲的行为,包括理和护理协助.
- 使用多变量回归模型的统计分析评估了行为差异和历史群体数据评估了羔羊的生长.
主要成果:
- 在人工和自然养的母羊之间,在理或协助羔羊哺乳的比例上没有发现统计学上显著的差异.
- 对历史群体数据的分析显示,人工养母和羊羔断奶重量之间没有有害的关联.
- 根据育儿史,母亲的护理行为没有显著差异.
结论:
- 人工养的母羊表现出与自然养的母羊相等的母性行为.
- 母养殖类型不会对羔羊生长性能产生不利影响.
- 人工养的母羊是商业羊群中可行的替代候选人,挑战了传统的信仰.
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