拟合杂交肉羊生长曲线及构建60、180日龄体重校正公式研究  

Study on Fitting Growth Curve of Hybrid Mutton Sheep and ConstructingWeight Correction Formulas at 60 days and 180 Days of Age

作　　者：靳善宁 王海锋 野丽锋 白蓉蓉 李建烨 徐振飞 张金霞 安雪娇 张瑞 王银春 金俊妮 耿智广 岳耀敬[2] JIN Shanning;WANG Haifeng;YE Lifeng;BAI Rongrong;LI Jianye;XU Zhenfei;ZHANG Jinxia;AN Xuejiao;ZHANG Rui;WANG Yinchun;JIN Junni;GENG Zhiguang;YUE Yaojing(Huanxian Animal Husbandry Technology Extension Centre,Huanxian 745700,China;Lanzhou Institute of Husbandry and Pharmaceutical Sciences,Chinese Academy of Agricultural Sciences,Lanzhou 730050,China;Qingyang Academy of Agricultural Sciences,Qingyang 745000,China)

机构地区：[1]环县畜牧技术推广中心,环县745700 [2]中国农业科学院兰州畜牧与兽药研究所,兰州730050 [3]庆阳市农业科学研究院,庆阳745000

出　　处：《中国草食动物科学》2024年第3期10-16,共7页China Herbivore Science

基　　金：国家重点研发计划(2021YFD1300901);2020年中央引导地方科技发展专项(YDZX20206200003391);兰州市人才创新创业项目(2020-RC-130);甘肃省科技重大专项计划(22ZD6NA037);科技创新2020项目-农业生物育种重大项目;2021年甘肃省科技厅重大专项(21ZD11NM001);甘肃省科技计划项目(21JR7RA033);内蒙古自治区科技计划项目(2021GG320)。

摘　　要：为探讨杂交肉羊的生长发育规律,选取生长发育良好的南湖杂交羊(南丘羊×湖羊,NH)、陶湖杂交羊(陶赛特羊×湖羊,TH)为研究对象,利用SPSS软件拟合Logistic、Gompertz和Von Bertalanffy三种非线性模型分析NH、TH羊的早期生长发育规律,构建NH、TH羊达到60日龄(断奶)和180日龄时的体重校正公式。结果表明,3种模型均能较好地拟合生长曲线,其中Von Bertalanffy非线性模型对NH、TH羊的拟合度最高。在目标日龄段,构建NH母羊达到60日龄(断奶)的体重校正公式为W_(60校)(kg)=W_(实)×18.254[/18.254+0.0493×(T_(实测日龄)-60)],达到180日龄的体重校正公式为W_(180校)(kg)=W_(实)×30.956[/30.956+0.0515×(T_(实测日龄)-180)];TH母羊达到60日龄(断奶)的体重校正公式为W_(60校)(kg)=W_(实)×17.087[/17.087+0.0439×(T_(实测日龄)-60)],达到180日龄的体重校正公式为W_(180校)(kg)=W_(实)×31.869[/31.869+0.0934×(T_(实测日龄)-180)]。The purpose of this study is to explore the growth and development patterns of hybrid mutton sheep,healthy hybrid Nanhu sheep(Southdown sheep×Hu sheep,NH)and Taohu sheep(Dorset sheep×Hu sheep,TH)were selected as the research objects.The early growth and development rules of NH sheep and TH sheep were analyzed,and weight correction formulas for NH sheep and TH sheep at 60 days(weaning)and 180 days of age were constructed by using three nonlinear models of Logistic,Gompertz,and Von Bertalanffy in SPSS software.The results showed that all three models could fit the growth curve well,and the Von Bertalanffy nonlinear model had the best fitting degree for NH sheep and TH sheep.In the target age segment,the weight correction formula constructed for NH ewes at 60 days old(weaning)is W_(60 calibration)(kg)=W_(measured)×18.254/[18.254+0.0493×(Tmeasured-60)],and the weight correction formula at 180 days old is W180 calibration(kg)=W_(measured)×30.956/[30.956+0.0515×(Tmeasured-180)].The weight correction formula for TH ewes reaching 60 days(weaning)is W_(60 calibration)(kg)=W measured×17.087/[17.087+0.0439×(Tmeasured-60)],the weight correction formula for reaching 180 days is W180 calibration(kg)=W_(measured)×31.869/[31.869+0.0934×(Tmeasured-180)].

关 键 词：杂交肉羊 生长曲线 体重 校正公式 

分 类 号：S826.2[农业科学—畜牧学]