Comparative Study on Growth and Carcass Performance of Three-way Cross Hybrid Pig Produced by Different Lines of Duroc Boar and Danish Sow
ZHAO Yunxiang
LI Sicheng
PENG Xing
ZHU Lin
JIANG Wei
LIU Qinyuan
ZHANG Conglin
LIU Xiaohong
Abstract：In order to compare the differences among production trait, disease resistance, feeding trait carcass trait and meat quality trait of three way cross hybrid pigs produced by different line of Duroc boar.The US Duroc, 50％Danish Duroc and Danish Duroc were crossed with Danish LY or YL sow to produce three way cross hybrid pigs(100％Danish pedigree, 75％Danish pedigree, 50％Danish pedigree), respectively.Tracking in the same childbirth batch, under the same feeding environment and feeding management conditions.The results showed that the average daily gain from birth to weaning was 50％Danish line(0.224 kg/d)＞75％Danish line(0.212 kg/d)＞100％Danish line(0.200 kg/d), and50％Danish line was significantly higher than 100％Danish line.The average daily gain of weaning to 30kg was 50％Danish line(0.384 kg/d)＞75％Danish line(0.335 kg/d)＞100％Danish line(0.319kg/d), and 50％Danish line was significantly higher than 75％and 100％Danish line.Adjust for 100 kg body age was 50％Danish line(156.8 d)＞75％Danish line(156.2 d)＞100％Danish line(153.0d), and 100％Danish line was significantly lower than 50％and 75％Danish line.The mortality of100％Danish line(6.94％) was higher than 50％(2.84％) and 75％Danish line(2.84％).In early feeding stage, the average daily intake of pig was 50％Danish line＞75％Danish line＞100％Danish line, but average daily intake in mid and late feeding period was 50％Danish line＞100％Danish line＞75％Danish line.The traits of slaughter rate, lean meat rate, back fat thickness and eye muscle area had no significant difference among the lines.The length of small intestine was 100％Danish line(23.64 m)＞75％Danish line(20.40 m)＞50％Danish line(19.99 m), and 100％Danish line was significantly longer than 50％and 75％Danish line.The different lines of three way cross hybrid pigs were no significant differences in meat quality traits.In summary, the growth rate of the 100％Danish line had obvious advantages, but slaughter rate had no advantages.In order to meet market demand, hog production enterprises can carry out different crossbreeding combination by Danish line.
Keywords：Tow-way cross hybrid sow of Danish lineThree way cross hybrid pigProduction performanceMeat quality traitCarcass trait
Publication Date：2018-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 126-131 )