胎次和季节对青峪母猪繁殖性能的影响  

Effects of Parity and Season on Reproductive Performance of Qingyu Sows

作　　者：郭芝忺 甘麦邻 沈林園[1] 李强 陈映 廖坤 张顺华[1] 朱砺[1] GUO Zhixian;GAN Mailin;SHEN Linyuan;LI Qiang;CHEN Ying;LIAO Kun;ZHANG Shunhua;ZHU Li(College of Animal Science and Technology,Sichuan Agricultural University,Sichuan Chengdu 611130,China;Sichuan Animal Husbandry General Station,Sichuan Chengdu 610041,China;Tongjiang County Animal Husbandry Station,Sichuan Tongjiang 636700,China)

机构地区：[1]四川农业大学动物科技学院,四川成都611130 [2]四川省畜牧总站,四川成都610041 [3]通江县畜牧站,四川通江636700

出　　处：《中国畜牧杂志》2021年第6期102-106,共5页Chinese Journal of Animal Science

基　　金：国家重点研发计划项目(2018YFD0501004);四川省科技支撑计划项目(2016NYZ0050);四川省畜牧总站畜禽遗传资源保护项目。

摘　　要：本实验旨在研究不同胎次和季节对青峪母猪繁殖性能的影响,以优化猪群胎次结构和配种时间。根据四川省青峪猪保种场2017—2019年的729头青峪母猪1 773窝繁殖数据分析不同胎次、不同季节母猪繁殖性能的差异。结果表明:青峪母猪第1~10胎的总产仔数、健仔数、出生窝重、断奶窝重以及断奶仔猪数等性状总体呈先增高后降低的趋势,各胎次间存在显著差异,但弱仔数差异不显著,其中,第4胎的繁殖性能最好(9.63头);青峪猪总产仔数、健仔数、出生窝重、断奶窝重以及断奶仔猪数等性状存在显著的季节效应,其中,夏季分娩的总产仔数极显著高于春季和冬季,夏季分娩的平均初生窝重显著高于春季、秋季、冬季。综上,青峪猪的繁殖性状受到季节和胎次效应的综合影响,生产中需要加强初产和第6胎次以上高胎龄母猪的饲养管理,并及时淘汰高胎龄母猪,以维持最佳胎次结构。This experiment aims to study the effects of different parities and seasons on the reproductive performance of Qingyu sows to optimize the parity structure and mating time of the pig herd.According to the breeding data of 1773 litters from 2017 to 2019 in the Qingyu Pig Breeding Farm in Sichuan Province,the difference in the production performance of sows in different parities and different seasons was analyzed.The results showed that the total litter size,healthy litter size,litter weight at birth,weaning litter weight and the number of weaned piglets of Qingyu sows from the 1st to 10th litters showed an overall trend of first increasing and then decreasing,and there was a significant trend between parities.However,the difference in the number of weak pups is not significant.Among them,the fourth litter has the best reproductive performance(9.63 heads);There are significant seasonal effects on the traits of Qingyu pigs such as total litter size,healthy litter size,birth litter weight,weaning litter weight and number of weaned piglets.Among them,the total number of litters delivered in summer was significantly higher than that in spring and winter,and the average litter weight delivered in summer was significantly higher than that in spring,autumn and winter.In summary,the reproductive traits of Qingyu pigs are affected by season and parity.In order to maintain the optimal parity structure,it is necessary to strengthen the feeding management of primipara and high gestational age sows above 6th parity,and timely eliminate the high gestational age sows in production of Qingyu sows.

关 键 词：青峪猪 繁殖性能 分娩季节 分娩胎次 

分 类 号：S828.3[农业科学—畜牧学]