裸足赛跑的能力是标准品种和冷血的遗传特征
Paulina Berglund1, Sreten Andonov2, Anna Jansson2
1Department of Animal Biosciences, Swedish University of Agricultural Sciences, P.O. Box 7023, 75007, Uppsala, Sweden. paulina.berglund@slu.se.
Genetics, selection, evolution : GSE
|February 25, 2025
概括
瑞典步行者裸足比赛的能力是一种遗传性特征. 为裸足比赛潜力进行育种是可行的,比起裸足状态,对比赛比例的遗传性更高.
科学领域:
- 马类遗传学 马类遗传学
- 动物繁殖 动物繁殖
- 运动科学 运动科学
背景情况:
- 马保护在马体育运动中至关重要,裸足比赛在瑞典慢跑中很受欢迎,以提高时间.
- 马的质量对于表现至关重要,但并非所有马匹都能忍受赤脚比赛.
- 裸足比赛的能力的遗传基础仍然未被研究.
研究的目的:
- 估计瑞典标准品种 (SB) 和瑞典-挪威冷血 (CB) 中与赤脚比赛相关的特征的遗传参数.
- 评估赤脚赛车倾向的遗传性及其与表现的相关性.
- 评估赤脚状态和赤脚种族比例之间的遗传相关性.
主要方法:
- 利用单特征混合线性动物模型来估计赤脚种族比例的方差组分.
- 采用单一特征混合动物值模型,用于二进制特征"赤脚状态".
- 分析了数千匹SB和CB马的数据,包括对赤脚状态的重复测量.
主要成果:
- 裸足比赛的比例的遗传概率估计在0.17至0.28.
- 裸足状态的遗传概率估计为0.07 (SB) 和0.08 (CB).
- 皮尔森对赤脚状态和赤脚种族比例的估计育种值之间的相关性是中等到强 (0.630.82).
结论:
- 裸足比赛的能力是SB和CB两种品种的遗传性特征.
- 裸足比赛的比例显示出更高的遗传性比裸足状态.
- 马匹的估计繁殖值显示中度至高准确度,这表明选择性繁殖的潜力为赤脚赛车能力.
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