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首页> 外文期刊>Livestock Science >Genetic relations of First Stallion Inspection traits with dressage and show-jumping performance in competition of Dutch Warmblood horses.
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Genetic relations of First Stallion Inspection traits with dressage and show-jumping performance in competition of Dutch Warmblood horses.

机译：首次种马检验性状与盛装舞步和跳马性能的遗传关系。

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摘要

Genetic parameters for traits evaluated at the First Stallion Inspection (FSI) and genetic correlations with dressage and show-jumping performance in competition were estimated. Data comprised 2361 stallions with FSI-observations from 1994 through 1999. Genetic analyses were performed using univariate and bivariate animal models. Heritability estimates of the FSI-traits ranged from 0.25 to 0.61. FSI-traits related to gaits showed strong genetic correlations (above 0.70) and FSI-traits related to free jumping had correlations close to unity. Competition results of 23 897 horses with performance in dressage and 22 811 horses with performance in show-jumping were linked to the FSI data to estimate the genetic relationship with performance in competition. Heritability estimates for dressage and show-jumping were 0.14. Genetic correlation between FSI-gaits and dressage in competition were positive, ranging from 0.37 to 0.72. Genetic correlation between FSI-jumping traits and show-jumping were all above 0.80. FSI-jumping traits showed negative correlations with dressage (about -0.48). FSI-gait traits showed negative correlations with show-jumping, except for canter. It is concluded that selection at First Stallion Inspection comprises an important component of the stallion selection programme, because FSI-traits have good genetic relationships with performance in competition and, due to the number of animals involved, relative high selection intensities can be achieved..
机译：估算了首次种马检查（FSI）评估的性状的遗传参数，以及与盛装舞步和比赛中跳跃表演的遗传相关性。数据包括1994年至1999年间2361例FSI观测的种马。使用单变量和双变量动物模型进行了遗传分析。 FSI-性状的遗传力估计范围为0.25至0.61。与步态有关的FSI特征显示出很强的遗传相关性（高于0.70），与自由跳跃有关的FSI特征具有接近于单位的相关性。 FSI数据将23 897匹盛装舞步赛马和22 811匹跳跳赛马的比赛结果与FSI数据关联起来，以估计与比赛表现之间的遗传关系。盛装舞步和跳跃表演的遗传估计为0.14。 FSI步态与盛装舞步之间的遗传相关呈正相关，范围为0.37至0.72。 FSI跳跃性状与表演跳跃之间的遗传相关性均在0.80以上。 FSI跳跃性状与盛装舞步呈负相关（约-0.48）。 FSI步态特征与跳影呈负相关，除了慢跑。结论是，首次种马检验的选择是种马选择计划的重要组成部分，因为FSI-性状与竞争表现具有良好的遗传关系，并且由于涉及的动物数量，可以实现相对较高的选择强度。

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