胎次和分娩季节对二元母猪产仔性能的影响  

Effects of parity and parturition season on litter performance of binary sows

作　　者：李美琳 郑诗婷 戴爱玲[2] Li Meilin;Zheng Shiting;Dai Ailing(Emergency Support and Technical Service Center of Zhangping Guilin Street,Fujian 364400;College of Life Sciences of Longyan University,Fujian Longyan 364000)

机构地区：[1]漳平市桂林街道应急保障与技术服务中心,福建漳平364400 [2]龙岩学院生命科学学院,福建龙岩364000

出　　处：《福建畜牧兽医》2022年第4期17-20,共4页Fujian Journal of Animal Husbandry and Veterinary medicine

摘　　要：本文对某存栏7800头能繁母猪的规模化场2019-2020年的生产数据进行整理,随机选择胎次不同的长大二元母猪各100窝,以及分娩季节中每个月份各100窝,对窝总产仔量、窝总活仔量、健仔量、死胎量、弱仔量、木乃伊胎量在不同胎次、分娩季节的影响展开分析,探究胎次和分娩季节对长大二元母猪产仔性能的影响。结果表明分娩季节和胎次与长大二元母猪的产仔性能存在紧密的联系,总产仔量、产活仔量与产键仔量最高皆出现于第6胎,产活仔量与产健仔量最低皆出现于第8胎,总产仔量最低出现于第2胎。在分娩季节方面,春季分娩的长大二元母猪总仔量、产活仔量、健仔量最高,秋季(9月份)和冬季(12月份)分娩的最低。因此,在母猪生产管理方面,应该充分利用该规律,做好相关育种工作,尽量淘汰6胎龄后繁殖性能低下的老母猪,多选择冬季配种春季分娩,在不同的分娩季节做好防暑保暖工作,使生猪育种经济效益最大化。In this study,the production data from 2019 to 2020 of a large-scale farm with 7800 breeding sows were collected.By random method,100 litters of Landrace×Large-White binary sows with different parities were selected,and 100 litters of sows with different parturients were selected for each month in the parturients season.The effects of litter size,litter live size,healthy litter size,stillbirth size,weak litter size and mummy litter size on different parturition and parturition season were analyzed to explore the effects of parturition number and parturition season on litter performance of Landrace×Large-White binary sows.The results showed that the parturition season and parturition had a close relationship with the litter performance of the Landrace×Large-White binary sows.The highest litter size,live litter size and bond litter size all appeared in the 6th parturition,the lowest live litter size and healthy litter size all appeared in the 8th parturition,and the lowest total litter size appeared in the 2nd parturition.In terms of parturition season,the total litter size,live litter size and healthy litter size of Landrace×Large-White binary sows parturition in spring were the highest,while the parturition in autumn(September)and winter(December)was the lowest.Herein,in terms of sow production management,we make full use of this law,do a good job in breeding,try to eliminate old sows with low reproductive performance after 6 gestation age,choose winter breeding and spring delivery,and do a good job in keeping warm in different delivery seasons to maximize the economic benefits of pig breeding.

关 键 词：二元母猪 胎次 分娩季节 产仔性能 

分 类 号：S828[农业科学—畜牧学]