莆田黑猪繁殖性状的通径分析  

Path analysis on reproductive traits of Putian black pig

作　　者：吴其文 陈建锚 肖天放[2] 吴国为 

机构地区：[1]莆田市乡里香黑猪开发有限公司,莆田351100 [2]福建农林大学动物科学学院,福州350002

出　　处：《福建畜牧兽医》2009年第2期4-6,共3页Fujian Journal of Animal Husbandry and Veterinary medicine

基　　金：福建省科技计划重点项目(编号:2007N00056)

摘　　要：本文对莆田黑猪206头初产母猪的繁殖性状进行了相关和通径分析,并分析了各繁殖性状对断乳窝重的直接影响和间接影响以及决定程度的大小。结果表明,莆田黑猪繁殖性状间在表型值上都存在不同程度的相关,其中以产活仔数与初生窝重的表型相关系数最高(0.943);影响断乳窝重的主要因素大小依次是20日龄窝重、产活仔数、20日龄个体重、初生窝重、初生重、乳头数和产仔数。揭示了莆田黑猪各繁殖性状间的真实关系。The data of 206 Putian black female pigs were used to carry correlation and path analysis on reproductive traits, and the direct effects, indirect effects and size of the decisive coefficient were analyzed. The results showed that different degree correlations existed between these reproductive traits, of which the correlation coefficient between number born alive （NBA） and litter weight at birth was reached to 0.943, which is the highest. The main influencing factors for 35-day weaning weight of litter were litter weight at 20 days, NBA, individual weight at 20 days, birth litter weight, birth weight, nipple number and birth litter size. It was revealed the real relationships among reproductive traits.

关 键 词：繁殖性状 相关系数 通径分析 莆田黑猪 

分 类 号：S828[农业科学—畜牧学]