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Heritability Estimates and Non-genetic Factors Analysis of Birth Weight of Chinese Merino Sheep (Xinjiang Type)

XU Xin-ming1, LI Yan-fei2, FU Xue-feng1, YU Li-juan1, ZHANG Yan-hua1,HUANG Xi-xia2,TIAN Ke-chuan1   

  1. 1.Institute of Animal, Xinjiang Academy of Animal Sciences, Urumqi 830000,China2.College of Animal Science, Xinjiang Agricultural University, Urumqi 830052,China

  • Received:2013-12-02 Online:2014-06-20 Published:2014-07-24

Abstract: The article estimate the heritability and analysis the influence of non-genetic factors on birth weight of the number of 2125 Chinese Merino sheep (Xinjiang type) by using SAS 8.1 program of least-squares analysis and MTDFREML software, the data collected from Nanshan sheep breeding farm. The results showed that the birth weight heritability of Chinese Merino sheep was 0.30, it belonged to the moderate heritability (0.1<h2<0.3). The maternal age, year of birth, lambing type and group were highly significantly effect on birth weight (P<0.01), but the gender was no significantly effect on birth weight (P>0.05).

Key words:

Chinese Merino sheep (Xinjiang type)birth weightheritabilitynonmso-bidi-font-family: 宋体" lang="EN-US">-genetic factors