Hygiene-related and feed-related hoof diseases show different patterns of genetic correlations to clinical mastitis and female fertility
Hygiene-related and feed-related hoof diseases show different patterns of genetic correlations to clinical mastitis and female fertility
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DOI：
10.3168/jds.2010-3137
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发表时间：
2011-03-01
影响因子：
3.5
通讯作者：
Sorensen, M. K.
中科院分区：
文献类型：
--
作者：
Buch, L. H.;Sorensen, A. C.;Sorensen, M. K.
蹄病是许多奶牛群面临的一个问题。为了研究该问题的一个方面，使用三变量线性动物模型对一胎瑞典红牛的 4 种蹄病、蛋白质产量、临床乳腺炎、授精次数以及从产犊到第一次授精的天数之间的遗传相关性进行了估计。修蹄机报告了皮炎、跟角糜烂、足底出血和足底溃疡的发生情况。该数据集包含约 314,000 只动物，这些动物至少有一种性状的记录；其中，约64,000只动物有蹄病记录。所有蹄部疾病的遗传力都很低（0.03 至 0.05）。蹄病分为两组：（1）皮炎和跟角糜烂（即与卫生有关的疾病）和（2）鞋底出血和鞋底溃疡（即与喂养有关的疾病）。 2组内性状之间的遗传相关性较高（分别为0.87和0.73），而不同组内性状之间的遗传相关性较低（
Hoof diseases are a problem in many dairy herds. To study one aspect of the problem, genetic correlations between 4 hoof diseases, protein yield, clinical mastitis, number of inseminations, and days from calving to first insemination were estimated in first-parity Swedish Red cows using trivariate linear animal models. Occurrence of dermatitis, heel horn erosion, sole hemorrhage, and sole ulcer were reported by hoof trimmers. The data set contained about 314,000 animals with records on at least one of the traits; among these, about 64,000 animals had records on hoof diseases. Heritabilities were low for all hoof diseases (0.03 to 0.05). The hoof diseases fell into 2 groups: (1) dermatitis and heel horn erosion (i.e., diseases related to hygiene) and (2) sole hemorrhage and sole ulcer (i.e., diseases related to feeding). The genetic correlations between traits within the 2 groups were high (0.87 and 0.73, respectively), whereas the genetic correlations between traits in different groups were low (