开花后的伤口特征:第二部分-比较和腐蚀糊的方法
Alycia M Drwencke1, Sarah J J Adcock2, Cassandra B Tucker3
1Center for Animal Welfare, Department of Animal Science, University of California, Davis, CA 95616; Animal Behavior Graduate Group, University of California, Davis, CA 95616.
Journal of dairy science
|August 8, 2025
概括
与腐蚀性粘贴方法相比,Cautery disbudding导致伤口愈合速度更快,小牛的敏感性更低. 这些发现表明,在这个常见的过程中,制是牛犊福利的更好的选择.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物福利科学 动物福利科学
- 农业科学 农业科学
背景情况:
- 脱芽是畜牧业的一种标准但痛苦的程序.
- 目前的方法,包括和糊,在应用方面有所不同,但长期影响的研究不足.
- 了解这些差异对于改善动物福利至关重要.
研究的目的:
- 为了比较伤口愈合,灵敏度和角的再生经过化和两种腐蚀性糊口散花方法在霍尔斯坦小牛.
- 评估不同散花技术对长期福利的影响.
主要方法:
- 荷尔斯坦小牛被分配到四个组:假 (控制),热铁,0.2毫升的性糊在剃光的芽,和0.3毫升的糊在未剃光的芽.
- 小牛接受局部麻醉和全身止痛.
- 在几周内评估了伤口愈合,深度,直径,机械感知值 (MNT) 和角的再生.
主要成果:
- 所有被拆散的小牛至少在42天内显示MNT降低;在拆散治疗中,灵敏度相似.
- 热铁伤口的收缩和愈合速度更快 (7-10周),而不是粘贴伤口 (16-18周).
- 粘贴伤口最初更大,更深,并且与体相比,愈合时间要长得多.
结论:
- 与腐蚀性糊相比,Cautery disbudding在伤口愈合速度和长期降低灵敏度方面表现出优异的结果.
- 剃毛和未剃毛的糊涂应用都产生了类似的结果,表明化学破坏方法具有相似的效果.
- 芽散发似乎对小牛的福利更有益,而不是腐蚀性粘贴方法.
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