松辽黑猪繁殖性状遗传规律的研究  

Heredity of Reproductive Traits in Songliao Black Swine

作　　者：张树敏[1] 李娜[2] 李毅[3] 金鑫[2] 赵晓东[2] 张嘉保[3] 

机构地区：[1]吉林大学农学部,长春130062 [2]吉林省农业科学院畜牧分院,吉林公主岭136100 [3]吉林大学实验动物中心,长春130062

出　　处：《沈阳农业大学学报》2007年第3期349-352,共4页Journal of Shenyang Agricultural University

基　　金：国家科技攻关计划项目(2004BA907A22);吉林省科学技术厅重大科技专项项目(20065019)

摘　　要：对松辽黑猪繁殖性状的表型参数和遗传参数进行了分析研究,结果表明:乳头数14.11个,产仔数13.45头,产活仔数12.54头,初生窝重15.79kg,初生个体重1.37kg,断奶仔数10.04头,断奶窝重122.84kg,断奶个体重12.45kg。繁殖性状乳头数、产仔数、产活仔数、初生窝重、初生个体重、断奶仔数、断奶窝重和断奶个体重的遗传力分别为0.528,0.138,0.118,0.427,0.382,0.147,0.243,0.212。繁殖性状间的表型相关介于-0.481～0.901之间,遗传相关在-0.371～0.913之间。断奶窝重与所有繁殖性状间都存在着正的表型相关和遗传相关,因此断奶窝重可以作为松辽黑猪繁殖性状的重要选择指标。The Phenotypic and genetic parameters of the reproductive traits of Songliao black swine were analyzed. The results indicated number of nipples were 14.11, total number of pigs born were 13.45, survival litter size was 12.54, litter weight at birth was 15.79kg, birth weight was 1.37kg, litter size at weaning were 10.34, weaning weight of litter were 122.34, and pig weight at weaning were 12.45kg. The heritability parameters corresponding with above mentioned reproductive traits were 0.528,0.138,0.118,0.427,0.382,0.147,0.243 and 0.212 respectively. The phenotypic correlation between traits ranged from -0.481 to 0.901, and the ranges of genetic correlation was -0.3＂71 to 0.913. The phenotypic and genetic correlations between pig weight at weaning and all the reproductive traits were positive. So pig weight at weaning could be regarded as an important choice index of reproductive traits in Songliao black swine.

关 键 词：遗传参数 繁殖性状 松辽黑猪 

分 类 号：S828.2[农业科学—畜牧学]