Position: Home > Articles > THE INFLUENCE OF DIFFERENT DEGRES OF INBREEDING ON ECONOMIC TRAITS IN THE NEW LINE(D Ⅳ)OF CHINESE LEAN-TYPE PIGS
Journal of Huazhong Agricultural University
1994
(1)
中国瘦肉猪新品系DⅣ系不同近交程度对经济性状的影响
作 者：
范春国;高有吉;颜元喜
单 位：
华中农业大学畜牧兽医系
关键词：
近交，经济性状，猪
摘 要：
根据中国瘦肉猪新品系ＤⅣ系群猪的研究资料，我们逐头计算了个体近交系数，然后按近交系数（％）高低依次分为０～０．７８，０．７９～１．５６，１．５７～３．１２，３．１３～６．２４，６．２５～１２．４，１２．５～２５等６个组，对各项繁殖性状、肥育性状、胴体性状与肉质性状进行了分组统计和方差分析。结果表明，当近交系数在６．２４％～１２．４％范围内时，后备猪生长发育和同胞测定猪的肥育性能表现最佳，当近交系数大于１２．５％时，主要经济性状出现下降趋势。
译 名：
THE INFLUENCE OF DIFFERENT DEGRES OF INBREEDING ON ECONOMIC TRAITS IN THE NEW LINE(D Ⅳ)OF CHINESE LEAN-TYPE PIGS
作 者：
Fan Chunguo;Gao Youji;Yan Yuanxi(Huazhong Agricultural University,Wuhan 430070)
关键词：
inbreeding,economic traits,pig
摘 要：
Individual inbreeding coefficitnt was ealculated in the population of new D Ⅳ line of the Chinese lean pig.Inbreeding coefficient(%) was divided into six groups:0～0.78,0.79～1.56,1.57～3.12, 3.13～6.24,6.25～12.4 and 12.5～25.Reproductive,fattening and carcass traits in each group were analyzed by analysis of group and variance.Results showed that replacement pigs could acquire maximum fattening performance according to sib test when inbreeding coefficient was in the range of 6.24%～12.4%.The major ecomomic traits displayed a declining tendency if the coefficient was larger than 12.5%.
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