›› 2009, Vol. 36 ›› Issue (5): 185-188.

• 动物生产 • Previous Articles     Next Articles

Genetic Parameter Estimation for Locomotion Scorein China Holstein Cattle

LIU Song-bai1, YI Jian-ming1, YAN Bang-fu2, ZHOU Rong-zhu1, ZHANG Jun-wei1, WANG Ting-ting1, HU Ling-li1, MAO Zhao-xun2, TENG Mao-ping2, BI Qun2   

  1. (1.Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070,China; 2.Wuhan Hui’erkang-Yangzijiang Dairy Co.Ltd, Wuhan 430070,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-05-20 Published:2009-05-20
  • Contact: YI Jian-ming

Abstract: The objective of this study was to estimate genetic parameter for locomotion score by applying single-trait animal model through MTDFREML with REML algorithm in China Holstein cattle, and data from 887 cows collected in 2007 derived from Wuhu farm in Wuhan. The results showed that locomotion score was affected by lactation number and housing types. There was an increasing tendency in locomotion score with the increase of lactation number. Locomotion score of tie-stall dairy cow was higher than that of free-stall dairy cow, the heritability of locomotion score was 0.09, the locomotion score, was a low heritability trait.

Key words: dairy cattle; locomotion score; heritability

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