家畜生态学报2018，Vol.39Issue(1)：50-53,4.
分娩胎次及季节对母猪繁殖性能的影响研究
Effect of Different Parities and Delivery Seasons on Reproductive Performance of Yorkshire Sows
摘要
Abstract
The aim of this study was to analyze the effect of parities and delivery seasons for the reproductive performance of Yorkshire Sows.A total of 46533 reproductive records of Yorkshire sows from an Anhui farm were used in this study.All sows were housed according to the same feeding standard.Effects of parities and delivery seasons to the reproductive performance including total litter size,number of live pigs,number of litters,number of stillbirths,number of mummies were tested.The data showed that the parity and delivery seasons all have significant effect on the reproductive performance of Yorkshire sows (P ＜0.05).The total litter size,number of live pigs and healthy litters of the 3rd parity was significantly increased by 0.56,0.58 and 0.74 respectively comparing with the first parity.However,after the third parity,these reproductive performance was reduced by 1.07,1.43 and 1.35 respectively from the third parity to the ninth parity.The number of weak litters and deformity pigs were the highest in the first parity,and the number of mummy was the lowest;The number of live litters,live births,and litter size of sows in spring were significantly higher than those of summer and winter (P＜0.05),The number of weak litters born in winter was significantly higher than that in autumn,spring and summer,and the number of stillbirth litters born in winter was significantly lower than that in autumn,spring and summer (P＜0.05).The results demonstrated that the appropriate delivery parity of Yorkshire sows were the 2nd to 6th parity,and the appropriate delivery season for pigs were spring and summer.关键词
大白母猪/胎次/分娩季节/繁殖性能Key words
Yorkshire sows/parity/delivery season/reproductive performance分类
农业科技引用本文复制引用
耿倩,刘德武,蔡更元,吴珍芳,杨杰,郑恩琴,丁荣荣,全建平,王兴旺,付帝生,周身娉,李绍云,曾忠花,顾婷..分娩胎次及季节对母猪繁殖性能的影响研究[J].家畜生态学报,2018,39(1):50-53,4.基金项目
国家自然科学基金青年基金(31601912) （31601912）
广东省科技计划项目(2013B070702003) （2013B070702003）
广东省应用型科技研发专项资金项目(2015B020231010) （2015B020231010）
广东省自然科学基金(2016A030310447) （2016A030310447）
