摘要
对湖南省食品公司农科院猪场长白后备猪的生长发育性能和母猪繁殖性能进行了测定,并进行了遗传力和遗传相关估计,结果表明:生长发育性状都具有中等以上的遗传力,繁殖性状中个体初生重、初生窝重、断奶个体重、断奶窝重具有中等遗传力,但产仔数、活仔数、断奶头数、21日龄窝重均为低遗传力。生长发育各性状间都呈较强相关,在繁殖性状中初生个体重与产仔数、21日龄窝重、断奶头数、断奶窝重、断奶个体重之间存在较强的正遗传相关,但与活仔数的遗传相关较弱。
The growth characters and the reproductive characters of landrace,which was provided by Pig farm of Hunan Food Company in Hunan Academy of Agricultural Sciences,were determined,and the hereditary capacity and genetic correlation of it were also estimated.The results showed that all the growth characters had middle and over middle hereditary capacity;in reproductive characters,the individual birth weight,the birth litter weight,the individual weanling weight and the weanling litter weight all had middle hereditary capacity,but the litter size,the live litter size,the weanling pig number and the 21-day-old litter weight all had low hereditary capacity.There were stronger genetic correlations between each growth character;in reproductive characters,there were stronger positive genetic correlations between the individual birth weight and the litter size,the 21-day-old litter weight,the weanling pig number,the weanling litter weight and the individual weanling weight,but there was weaker genetic correlation between individual birth weight and live litter size.
出处
《湖南农业科学》
2011年第4期122-124,128,共4页
Hunan Agricultural Sciences
关键词
长白猪
生长发育性状
繁殖性状
遗传力
遗传相关
landrace
growth character
reproductive character
hereditary capacity
genetic correlation
