机构地区:[1]吉林农业大学动物科学技术学院,吉林长春130118 [2]吉林省农业科学院动物生物技术研究所,吉林公主岭136100 [3]公主岭国家农业科技园飞马斯牧业有限公司,吉林公主岭136100 [4]吉林省德惠市动物卫生监督所,吉林德惠130300 [5]吉林大学动物科学学院,吉林长春130062
出 处:《养猪》2023年第1期31-35,共5页Swine Production
基 金:国家自然科学基金项目(U21A20251)。
摘 要:旨在揭示松辽黑母猪繁殖性能,确定繁殖性能最优的松辽黑母猪产仔季节和胎次组合,试验选择公主岭国家农业科技园飞马斯牧业有限公司2021年9月到2022年9月的126头221窝松辽黑母猪的繁殖记录,采用SPSS26.0软件邓肯法多重比较分析不同产仔季节和胎次与松辽黑母猪繁殖性能的关联性,以期在吉林省饲养条件下提高松辽黑母猪育种效率和生产水平。统计分析结果显示:在春夏秋冬四季中,松辽黑母猪四季间的总产仔数和产活仔数均存在极显著差异(P<0.01),其中春季产仔性能最高,其次为冬季和夏季,秋季产仔性能最低;春季和冬季产仔的松辽黑母猪初生窝重、3周龄窝重和断奶窝重、断奶仔猪数极显著高于秋季(P<0.01);四季间松辽黑母猪的初生重性状间未存在显著差异(P>0.05)。松辽黑母猪第3胎次和4胎次的总产仔数极显著高于其他胎次(P<0.01);松辽黑母猪第3胎次的产活仔数显著高于第2、5胎次(P<0.05),极显著高于第1胎次和6胎次(P<0.01);第3胎次的断奶仔猪数性能最高,且显著高于第1胎次和6胎次(P<0.05);第4胎次的总产仔数、3周龄重、3周龄窝重、断奶重和断奶窝重性能最好;各胎次间初生重和初生窝重差异不显著。结果表明:季节和胎次对松辽黑猪的繁殖性能有显著影响。关联分析结果显示松辽黑猪母猪春季和冬季的繁殖性能相对较优;松辽黑母猪的繁殖性能相对最佳胎次为第3次和第4胎次。In order to reveal the reproductive performance of Songliao black sows and determine the litter season and parity combination of Songliao black sows with the best reproductive performance,the breed-ing records of 126 Songliao black sows with 221 liters from Gongzhuling Nationial Agricultural Science and Technology Park Pegasi Farming Co.,LTD from September 2021 to September 2022 were selected.The Duncen method using SPSS 26.O software was used to analyze the correlation between different litter seasons and parity and reproductive performance of Songliao black sows,in order to improve the breeding efficiency and production level of Songliao black sows under the conditions of Jilin Province.The results of statistical analysis showed that there were significant differences in the total litter size and live litter number of Songliao black sows in spring,summer,autumn and winter(P<0.01).The liter perform-ance was the highest in spring,followed by winter and summer,and the lowest in autumn.Litter weight at birth,litter weight at 3 weeks of age,litter weight at weaning and number of weaned piglets of Songli-ao black sows in spring and winter were significantly higher than those in autumn(P<0.01).There was no significant difference in birth weight traits of Songliao black sows between four seasons(P>0.05).The total litter size of the 3rd and 4th parities of Songliao black sows was significantly higher than that of other parities(P<0.01).The live birth number of Songliao black sows at the 3rd parities was significantly higher than that at the 2nd and 5th parities(P<0.05),and extremely significantly higher than that at the 1st and 6th parities(P<0.01).The number performance of weaned piglets at 3rd parities was the highest,and significantly higher than that at lst parities and 6th parities(P<0.05).The performance of total litter size,weight at 3 weeks of age,litter weight at 3 weeks of age,weaning weight and litter weight at the fourth parities was the best.There was no significant difference in birth weight and litter wei
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