初配日龄、体重和背膘对法系长大后备母猪产仔性能的影响  

Effects of initial mating age,weight and back fat on litter performance of French Landrace×Yorkshire gilts

作　　者：李根来 雷骁勇 封伟杰 任双 于君 邵彩梅 Li Genlai;Lei Xiaoyong;Feng Weijie;Ren Shuang;Yu Jun;Shao Caimei(Wellhope Foods Co.,Ltd.,Liaoning Shenyang 110000;Liaoning Agriculture Development Service Center,Liaoning Shenyang 110033;Liaoning Hefeng Agriculture and Animal Husbandry Development Co.,Ltd.,Liaoning Shenyang 110000)

机构地区：[1]禾丰食品股份有限公司,辽宁沈阳110000 [2]辽宁省农业发展服务中心,辽宁沈阳110033 [3]辽宁禾丰农牧发展有限公司,辽宁沈阳110000

出　　处：《现代畜牧兽医》2023年第12期34-38,共5页Modern Journal of Animal Husbandry and Veterinary Medicine

基　　金：国家生猪产业技术体系建设专用项(CARS-35)。

摘　　要：试验旨在研究初配日龄、体重和背膘对法系长大后备母猪产仔性能的影响,选取禾丰食品股份有限公司某猪场的762头法系长大后备母猪的基础数据,分析不同配种日龄、体重和背膘与第一胎产仔性能的关系,为提升法系后备母猪的饲养及繁殖性能提供参考。结果显示:初配日龄为251~270日龄可获得最高的总产仔数和产活仔数;初配体重为151~170 kg可获得最高的总产仔数和产活仔数;初配背膘为12~17 mm可获得最高的总产仔数和产活仔数。研究表明,不同的初配日龄、体重和背膘对法系长大后备母猪的第一胎产仔性能具有重要影响,配种日龄为251~270日龄,配种体重为151~170 kg,配种背膘为12~17 mm,法系长大后备母猪可在第一胎获得最好的产仔性能。The purpose of the experiment was to study the effect of initial mating age,weight and back fat on the litter performance of French Landrace×Yorkshire gilts.The basic data of 762 gilts from a pig farm of Wellhope Foods Co.,Ltd.were selected to analyze the relationship between different breeding age,body weight and backfat and first litter performance,so as to provide references for the improvement of breeding and reproductive performance of gilts.The results showed that 251~270 days of initial mating age could obtain the highest total litter size and live litter size.The highest total litter size and live litter size were obtained when the initial mating weight was 151~170 kg.The highest total litter size and live litter size were obtained when the initial backfat was 12~17 mm.The study indicates that different mating age,weight and backfat had significant impact on the first litter performance of farrowing sows.When the farrowing age was 251~270 days,the farrowing weight was 151~170 kg,and the farrowing backfat was 12~17 mm,French Landrace×Yorkshire gilts can achieve the best litter performance in their first litter.

关 键 词：法系长大后备母猪 初配日龄 初配体重 初配背膘 产仔性能 

分 类 号：S828.89[农业科学—畜牧学]