在不列颠哥伦比亚省的奶牛养殖场上,奶牛养和小牛养的做法
Elizabeth R Russell1, Marina A G von Keyserlingk1, Daniel M Weary1
1Animal Welfare Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada V6T 1Z4.
Journal of dairy science
|January 8, 2025
概括
在不列颠哥伦比亚省,乳牛养殖实践向更高的牛奶配给和社会住房转变. 然而,个人住房仍然存在,这凸显了对收养障碍和改善小牛生长监测方法的研究的需要.
科学领域:
- 动物科学动物科学
- 乳制品管理 乳制品管理
- 农业实践 农业实践
背景情况:
- 已经有几十年的乳牛护理研究,但在商业农场的采用是不太了解.
- 评估小牛的生长对于评估养殖成功至关重要,但方法各不相同.
研究的目的:
- 描述加拿大不列颠哥伦比亚省目前的乳牛养殖做法.
- 记录农场用来评估小牛生长的方法.
主要方法:
- 从6月到2023年12月,一项调查通过电子邮件发送给不列颠哥伦比亚省所有437家奶牛场.
- 分析了63个完成的答案 (14.4%的参与率),详细说明了群体大小,品种,住房,母乳养,断奶和生长监测.
主要成果:
- 大多数农场 (63.5%) 在断奶前使用单独的小牛;25.4%使用社会住房.
- 平均牛奶补贴为9.5升/天,其中71.6%使用母乳养.
- 小牛的年龄 (平均75.8天) 是主要的断奶标准,52.4%监测成长,31.7%有成长目标.
结论:
- 乳牛养殖正在随着牛奶养的增加和社会住房的采用而发展.
- 个人住房仍然很常见,这表明需要调查社会住房的障碍.
- 有机会加强小牛的生长监测,以基于证据的管理决策.
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