不同杂交组合肉鸡生长曲线拟合及分析  

Fitting and analysis of growth curve of different cross broilers

作　　者：李永峰 曲亮[1] 邵丹[1] 窦套存[1] 郭军[1] 王强[1] 王星果[1] 胡玉萍[1] 卢建[1] 马猛[1] 马军 童海兵[1] LI Yongfeng;QU Liang;SHAO Dan;DOU Taocun;GUO Jun;WANG Qiang;WANG Xingguo;HU Yuping;LU Jian;MA Meng;MA Jun;TONG Haibing(Jiangsu Institute of Poultry Science,Yangzhou 225125,China;Jiangsu Lihua Livestock Co.,Ltd.,Changzhou 213168,China)

机构地区：[1]江苏省家禽科学研究所,江苏扬州225125 [2]江苏立华牧业股份有限公司,江苏常州213168

出　　处：《畜牧与兽医》2024年第7期15-19,共5页Animal Husbandry & Veterinary Medicine

基　　金：江苏省种业振兴“揭榜挂帅”项目(JBGS[2021]106)。

摘　　要：通过对不同杂交组合肉鸡生长发育规律的研究,旨在为小型优质肉鸡品种选育提供参考。以AA肉鸡与R132、F112两个肉鸡品系杂交后代以及与G1、G3、C4三个蛋鸡品系杂交后代为试验组,白羽肉鸡WOD168为对照组,采用Logistic、Gompertz和Bertalanffy 3种模型对各组试验鸡进行生长曲线拟合。结果:6组试验鸡3种生长曲线模型拟合度(R^(2))均大于0.99。Gompertz和Bertalanffy模型的R~2均大于Logistic模型。进一步从统计学参数及其生物学意义角度评价可知,Gompertz模型是3种模型中拟合效果最好的。Gompertz模型拟合AA×R132、AA×F112、AA×G1、AA×G3、AA×C4和WOD168组的R~2分别为0.999、0.999、0.999、0.998、0.999和0.999,拐点体重分别为1 789.97、2 073.82、1 516.83、1 769.91、1 336.01和1 792.47 g,拐点周龄分别为5.75、6.30、7.19、7.20、6.38和7.64周,以AA×G3组拐点周龄和体重与WOD168组最为接近。本研究表明,3种模型均可用于不同杂交组合肉鸡生长曲线拟合及分析,以Gompertz模型的拟合效果最好,AA×G3组生长曲线最佳。This study was to investigate the growth and development rules of different cross broilers,and to provide basis for small-scale variety breeding of broiler.The offspring of AA chickens crossed with different broiler(R132,F112)and layer(G1,G3,C4)strains were used as the experimental group,while the white feather broilers(WOD168)were used as the control group.Non-linear models,including Logistic,Gompertz and Bertalanffy,were employed to fit and analyze the growth curve of all the groups of the experimental broilers.The results were as follows:The growth curves could be fitted using the three models with fitting degrees(R^(2))above 0.99 for all the groups.The R^(2) of the Gompertz and Bertalanffy models was greater than that of the Logistic model.From statistical and biological perspectives,further evaluation suggested that the Gompertz model had the best fitting growth effect among the three models.The R^(2)of the Gompertz model fitting the AA×R132,AA×F112,AA×G1,AA×G3,AA×C4,and WOD168 groups were 0.999,0.999,0.999,0.998,0.999 and 0.999,respectively,with the inflection body weight being 1789.97,2073.82,1516.83,1769.91,1336.01 and 1792.47 g,respectively;and the growth inflection point being at 5.75 weeks of age,6.30 weeks of age,7.19 weeks of age,7.20 weeks of age,6.38 weeks of age,and 7.64 weeks of age,respectively.The inflection point weight and ages of the AA×G3 groups were relatively close to that of the WOD168 group.The three models were feasible to fit and analyze the growth curve of all the groups of the experimental broilers,with the Gompertz model showing best fitting effect and the AA×G3 groups having the best growth curve.

关 键 词：肉鸡 杂交 生长曲线 拟合分析 

分 类 号：S831.2[农业科学—畜牧学]