影响外来猪种繁殖性状若干因素的研究  

Study on Factors Affecting Reproductive Performance of Foreign Pig Breeds

作　　者：陈海燕[1] 朱海平[1] 叶选怡[1] 徐燕云[1] 傅衍[2] 陆建定[3] 

机构地区：[1]丽水师范专科学校生物系,丽水323000 [2]浙江大学动物科学学院,杭州310029 [3]浙江省农业厅,杭州310021

出　　处：《上海交通大学学报（农业科学版）》2003年第3期173-176,共4页Journal of Shanghai Jiaotong University(Agricultural Science)

基　　金：国家自然科学基金资助(39670533)

摘　　要：研究材料来自杭州种猪试验场1996～2001年长白、杜洛克和大约克猪的3个繁殖性状原始档案,共收集了6965窝。在建立固定效应模型的基础上,对总产仔数、产活仔数及初生窝重的资料进行了最小二乘分析。结果表明:胎次、年份、季节和品种对3个繁殖性状的影响都达到了极显著的水平(P<0.01)。A total number of 6965litter records of reproductive traits of Landr ace,Duroc and Yorkshire pigs collected a t Hangzhou Pig Breeding Farm from 19 96to 2001we re analysed.On the basis of fixed eff ect model,the least sq uares means of the total number born,the number born alive and the litter weigh t at birth were estimated.The result indicated that the influence of the fixed effects of parity,year,season and breed on the three reproductive traits were all highly significant (P<0.01).

关 键 词：外来猪种 繁殖性状 最小二乘分析 长白 杜洛克 大约克猪 胎次 

分 类 号：S828[农业科学—畜牧学]