摘要
为探讨二元母猪和三元母猪繁殖性能的差异,试验以正常分娩的二元母猪50头、三元母猪67头为研究对象,对其1~2胎繁殖性状进行测定和分析。结果表明:二元母猪妊娠期低于三元母猪(P>0.05);二元母猪的总产仔数与产活仔数、初生窝重、断奶窝重大于三元母猪,初生个体重、断奶个体重略小于三元母猪;二元母猪26 d校正断奶窝净增重、窝日增重显著大于三元母猪,26 d校正断奶个体日增重略大于三元母猪(P>0.05);二元母猪21 d泌乳量大于三元母猪,26 d校正断奶仔猪成活率大于三元母猪。结果显示,三元母猪的繁殖性能低于二元母猪,从经济效益角度考虑,三元母猪不宜留作种用。
In order to explore the difference of reproductive performance between binary sows and ternary sows,50 binary sows and 67 ternary sows were selected as the research objects,and their reproductive characteristics of 1-2 fetuses were measured and analyzed.The results showed that the pregnancy period of binary sows was lower than that of ternary sows;the total litter size and live litter size,birth litter weight,weaning litter weight of binary sows were greater than those of ternary sows,and the average birth weight and weaning weight were slightly less than those of ternary sows;the corrected net weight gain and daily weight gain of binary sows at 26 days were significantly higher than those of ternary sows,and the corrected daily weight gain of individuals at 26 days was slightly higher than that of ternary sows(P>0.05);the milk yield of binary sows was higher than that of ternary sows in 21 days,and the survival rate of weaned piglets in 26 days was higher than that of ternary sows.The results showed that the reproductive performance of ternary sows was lower than that of binary sows.From the perspective of economic benefits,ternary sows should not be reserved for breeding.
作者
袁雪波
丁皓
柏雪锋
许娟
陆旭园
曹林
孔凡勇
YUAN Xuebo;DING Hao;BAI Xuefeng;XU Juan;LU Xuyuan;CAO Lin;KONG Fanyong(Farmer Science and Technology Education and Training Center of Honghe Hani and Yi Autonomous Prefecture,Mengzi 661199,China;Agricultural and Rural Science and Technology Bureau of Shiping County,Honghe Hani and Yi Autonomous Prefecture 662200,China;Animal Health Supervision Institute of Jinping County,Honghe Hani and Yi Autonomous Prefecture 661599,China;Animal Husbandry Technique Popularizing Station of Honghe Hani and Yi Autonomous Prefecture,Mengzi 661199,China)
出处
《养猪》
2022年第3期40-43,共4页
Swine Production
基金
云南省现代农业生猪产业技术体系建设项目(2020KJTX011)。
关键词
二元母猪
三元母猪
繁殖性能
研究
binary sow
ternary sow
reproductive performance
research
