作 者：
曹林;周建雄;梁保颂;张护;陈永军;孔凡勇
单 位：
云南省红河哈尼族彜族自治州畜牧技术推广站;云南省建水县畜牧技术推广站
关键词：
PIC母猪;窝产活仔数;初生重;28日龄断奶重;断奶成活率
摘 要：
以262窝PIC母猪所产的2 396头仔猪为研究对象,探讨窝产活仔数对仔猪初生重、28日龄断奶重及断奶成活率的影响。结果表明,随着窝产活仔数的增加,仔猪初生窝重、28日龄断奶窝重增加,断奶成活率降低。不同窝产活仔数间的初生窝重差异极显著(P<0.01),窝产活仔数9~11头间的断奶窝重差异不显著,但极显著大于窝产活仔数6、7头(P<0.01),断奶成活率以窝产活仔数6~11头较好(90%以上);不同窝产活仔数间的初生个体重差异不显著(P>0.05),窝产活仔数6~10头间的断奶个体重差异不显著(P>0.05),极显著大于窝产活仔数11头和12头(P<0.01)。窝产活仔数与初生窝重、28日龄断奶窝重呈极显著正相关,相关系数分别为0.917和0.589;与初生个体重呈负相关,相关系数为-0.105;与28日龄断奶个体重及28日龄断奶成活率呈极显著负相关,相关系数分别为-0.417和-0.581。本试验条件下,窝产活仔数在10~11头之间可以取得较好的经济效益。
译 名：
Study on the Correlation between Reproductive Traits of PIC Sows
作 者：
CAO Lin;ZHOU Jianxiong;LIANG Baosong;ZHANG Hu;CHEN Yongjun;KONG Fanyong;Animal Husbandry Technique Popularizing Station of Honghe Hani and Yi Autonomous Prefecture;Animal Husbandry Technique Popularizing Station of Jianshui County;
关键词：
PIC sows;;a litter of live piglets born number;;birth weight;;28 d weaned weight;;survival rate of weaning
摘 要：
To explore a litter of live piglets born number impact on birth weight,28 d weaned weight and survival rate of weaning,this experiment studied the 2 396 piglets from 262 nests sow.The result showed that,as a litter of live piglets number increased,the litter birth weight and 28 d weaned weight was increased,but survival rate of weaning was decreased.Different litter of live piglets born,piglets birth weight had significant distinction(P<0.01);the weaning weight of 9~11 pigs in a litter(P>0.05) was greater than 6~7 pig in a litter(P<0.01);when a litter of live piglets born number was 6 ~11,the survival rate of piglets weaning was highest(>90%);between different litter of live piglets born number,litter birth weight had no significant variance(P>0.05);there were no significant change on litter weaned weight,when the litter of live piglets born number was 6~10(P>0.05),but its litter weaned weight was very higher than the 11 or 12 heads live piglets born in a litter(P <0.01);litter birth weight and 28 d weaned weight was positively correlated to a litter of live piglets born number,the correlation coefficients were 0.917 and 0.589,respectively;in addition,the litter of live piglets born number was negatively related to the primary average weight,28 d weaned weight and survival rate of weaning,the correlation coefficients were-0.105,-0.417 and-0.581,respectively.Under the conditions of this experiment,when a litter of live piglets born number was 10~11,the farm can get more and more economic benifit.
