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为了提高加工猪的弹性而进行育种,可以减少咬尾巴,腿和死亡率.

Wim Gorssen¹, Carmen Winters^1,2, Roel Meyermans¹

¹Center for Animal Breeding and Genetics, Department of Biosystems, KU Leuven, Kasteelpark Arenberg 30, Box 2472, 3001, Leuven, Belgium.

Genetics, selection, evolution : GSE

|June 20, 2024

概括

此摘要是机器生成的。

使用纵向体重数据来提高生殖猪的弹性,可以减少尾巴咬伤,,以及死亡率. 这种方法也提高了猪内的统一性,表明整体健康和福利得到了改善.

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科学领域:

动物科学动物科学
遗传学是一个遗传学.
动物福利动物福利

背景情况:

猪的纵向数据偏差是遗传的,可以作为一般弹性的代理.
有限的研究存在于从纵向数据和特定的健康/福利指标的弹性特征之间的关系.
本研究探讨了从纵向数据中获得的弹性与诸如伤口,,死亡率等特征之间的联系.

研究的目的:

调查从纵向数据偏差和特定猪健康和福利指标中得出的弹性特征之间的关系.
评估弹性特征的遗传性及其与尾部咬伤伤,,死亡率的遗传相关性.
为了确定这些弹性特征的繁殖是否可以改善猪的健康,福利和统一性.

主要方法:

每两周监测1919只养猪,记录体重和身体异常 (,伤口).
使用体重,称重顺序和称重期间活动的偏差来评估弹性.
分析了弹性特征和身体异常特征之间的关联,估计了遗传参数.

主要成果:

体重偏差显示中度遗传 (25.2%36.3%) 并与尾部咬伤伤,,和死亡率正相关.
权衡顺序 (4.2%的遗传性) 和活动 (12.0%的遗传性) 的偏差具有低遗传性,并且与研究的福利特征没有显著的关联.
个体体重偏差与水平的均性有正相关,这表明为了弹性而进行育种可以增强均性.

结论:

基于纵向体重数据的复原性育种可以减少猪的尾巴咬伤,腿和死亡率.
这些弹性特征是一般健康和福利的指标,对养猪者来说是有价值的.
这些发现支持使用其他动物物种的纵向体重量化性.