Genetic Parameters Analysis on Main Growth and Carcass Traits for High Quality Line of Hubei White Swine
Sun Hua
Song Zhongxu
Peng Xianwen
Dong Binke
Lei Bing
Chen Mingyin
Liu Xinjian
Mei Shuqi
Abstract：In this study, the genetic parameters of main growth and carcass line in Hubei white swine high quality strain were analyzed by applying the method of Multi-trait animal model DFREML. The results showed that the heritabilidy evaluations of average daily gain(ADG), age at 90 kg body weight(AGE), back-fat(BF) up to 90 kg body weight and feed conversion ratio(FCR) were 0.42, 0.34, 0.22 and 0.48 respectively. Each traits presented certain litter effects and the ef-fects ranged from 0.09 to 0.31. The heritabilidy evaluations of live weight before slaughter, car-cass weight, dressing percentage, lean meat percentage, eye muscle area, back-fat between 6th and 7th lib, hind leg percentage, carcass straight length, skin thickness and eye muscle area were 0.13, 0.21, 0.32, 0.45, 0.67, 0.52, 0.48, 0.65, 0.72 and 0.32 respectively. The genetic correla-tion of ADG/DAYS, ADG/BF, ADG/FCR, DAYS/BF, DAYS/FCR and BF/FCR were -0.72, 0.25, -0.48, -0.17, 0.55 and -0.04, respectively. The genetic correlation between eye muscle area with hind leg per-centage and lean meat percentage were 0.62 and 0.59, respectively. The genetic correlation be-tween intra-muscle fat with lean meat percentage, eye muscle area and hind leg percentage were -0.28, -0.15 and -0.23, respectively.
Keywords：Hubei white swine high quality lineDFREMLVariance componentGenetic parameter
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 26-30 )