多种剑在共同放牧的牛和羊生产系统中提高了动物的表现
G Beaucarne1, J Shackleton1, C Grace2
1School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland; Devenish Research and Innovation Company, Dowth Hall, Dowth, Co. Meath, Ireland.
Animal : an international journal of animal bioscience
|March 21, 2025
概括
多种剑显著改善了牛和羊的表现,观察到更高的平均每日收益和尸体装饰百分比. 这些多样化的牧场为反动物生产系统提供了更可持续的方法.
科学领域:
- 农业科学 农业科学
- 动物科学动物科学
- 生态生态学 生态生态学
背景情况:
- 多种类的刀具为反动物生产的生产率和环境可持续性提供了潜在的好处.
- 有限的研究存在于不同类型的刀剑对共同放牧的牛和绵羊的比较影响.
- 了解剑组成影响对于优化放牧系统至关重要.
研究的目的:
- 评估四种不同的剑系统对共同放牧的牛和羊的表现的影响.
- 为了比较一个多年生麦草的剑,一个永久的牧场,一个6种的剑,和一个12种的剑.
- 评估动物表现指标,包括平均每日增益和尸体特征.
主要方法:
- 建立了四种剑草类型 (多年生草,永久牧场,6种,12种).
- 每个9公的系统在2020年和2021年4月至11月期间由乳牛交叉母牛和母羊与羔羊轮流共同放牧.
- 动物的活体重定期记录,根据年龄,体重和脂肪类别的屠宰标准.
主要成果:
- 与其他类型的相比,放牧6种的公牛的平均日益 (ADG) 显著更高.
- 六种和十二种剑的羔羊表现出更高的ADG和尸体装饰百分比,牧场日数更少.
- 多种剑 (6SP和12SP) 支持动物表现优于多年生草 (PRG) 和永久牧场 (PP).
结论:
- 在多种剑上共同放牧的牛和羊可以提高动物生产的性能.
- 多种刀具提高了效率,并可能减少反动物系统对环境的影响.
- 较低的肥率是可行的多种剑,而不会影响动物产量.
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