作　　者： ;

机构地区： 河北农业技术师范学院

出　　处： 《河北农业技术师范学院学报》 1990年第4期67-72,共6页

摘　　要： 本文调查了昌黎种猪场昌黎种母猪1973～1978年间1～6胎的产仔记录,借助PC-1500计算机,采用单因素次级样本含量不等的方差分析法,分别研究了产仔胎次及分娩季节对母猪产仔数、产活仔数及仔猪平均初生重和断奶成活率的影响。结果表明,产仔胎次对产仔数、产活仔数及仔猪平均初生重无显著影响(P>0.05);分娩季节对产仔数和产活仔数有显著影响(P<0.05),而对仔猪断奶成活率有极显著的影响(P<0.01)。 The farrowing data of the firstbirth to the sixthbirth of Changli sam from 1973 to 1978 were investigated in Changli breeding pig farm. with the help ot PC-1500 computer, effects ot orders and seasons of parturition to the number, the survival number, the average birth weight and the weaning survival rate of baby pig at a birth were studied by the variance analysis of one factor in which the samples of treatments were not equal. The results indicatod that the differences of the number, the survival number, the average birth weight of baby pig at a ibrth were all riot significant (p<0. 05) between orders of parturition. It was sign- ficant for the number and the survival number of baby pig at a birth (p<0. 05) and for the weaning survival rate of the baby pig (p<0. 01) between seasons of paturition.

关 键 词： 产仔胎次 分娩季节 母猪 繁殖性状

领　　域： [农业科学] [农业科学]