2013年至2023年巴西商业母猪群中的爪病变状况
Ton Kramer1,2, Alyssa S Cornelison2, Alan Klein2
1Programa de Pós-graduação em Ciências Veterinárias, Universidade Federal do Paraná-Setor Palotina, Palotina, Brazil.
Frontiers in veterinary science
|August 13, 2024
概括
母猪的爪损伤是一个福利问题. 这项研究发现,独立的群体结构和个体妊娠住房恶化了爪病变,而更大,更先进的群体和群体住房显示出对母猪爪健康的潜在益处.
科学领域:
- 动物科学动物科学
- 兽医医学 兽医医学 兽医医学
- 农业科学 农业科学
背景情况:
- 母猪的爪损伤对动物福利和生产力产生重大影响.
- 与爪病变相关的是商业生猪生产中的一个主要问题.
研究的目的:
- 调查影响巴西商业母猪群爪损伤严重程度的因素.
- 确定与减少爪病变流行率相关的群体特征和管理实践.
主要方法:
- 一项涉及12364头母猪的研究在巴西的129个群体中进行,评估了病变的严重程度 (部过度生长和侵蚀,部和鞋底裂,白线分离,墙壁裂,生长的脚/爪).
- 使用主要组件分析 (PCA) 和层次聚合集群 (HAC) 来分组群体.
- 应用了部分最小平方 (PLS) 方法来评估生产结构,管理,住房和地区的影响.
主要成果:
- 脚跟过度生长和侵蚀,白线分离和水平墙壁裂是最常见的病变.
- 与C1和C2相比,C3集群 (可能更大,更先进) 的群体对大多数爪病变的得分明显较低.
- 独立的生产结构和个体妊娠住房与损伤严重程度的增加有关 (L-指数).
结论:
- 较大,技术先进的群体可能会为母猪爪健康带来好处.
- 与个人住房相比,组孕期住房似乎可以减轻爪子对健康的不良影响.
- 需要进一步的研究来验证群体住房的好处,特别是考虑到巴西最近从个人住房实践过渡.
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