经济动物学报2026，Vol.30Issue(4)：260-264,5.DOI:10.13326/j.jea.2026.1998
基于生长曲线分析琅琊鸡母鸡的保种效果
Preservation Effect Analysis of Langya Chicken Hens Based on Their Growth Curve
摘要
Abstract
In order to evaluate the preservation effect of the populations in National Chickens Genetic Resources(Jiangsu),three nonlinear growth models,Logistic,Gompertz and Bertalanffy,were used to fit the growth of hens in two generation Langya chicken preservation population in 2019 and 2022.The results showed that the body weight fitting degrees(R2)of three models in the two generations of hens were all above 0.996.According to the R2 values of 0.997 and 0.998,the Gompertz model had the best growth fitting effect in Langya chickens.The asymptotic body weights fitted for the two generations of hens were 1 967.965 g and 1 896.725 g.The turning point age were 6.184 weeks and 6.321 weeks.The results were consistent with the actual situations of the preservation and production in Langya chickens.In summary,in the process of local chicken preservation,the population can be scientifically and reasonably fed and managed.And the preservation effect can be monitored based on the characteristics of the growth curve.This study provides a scientific basis for the protection,development and utilization of local chicken genetic resources.关键词
生长曲线/拟合度/琅琊鸡/保种效果Key words
growth curve/fitting degree/Langya chicken/preservation effect分类
农业科技引用本文复制引用
李国辉,侍佳敏,张会永,薛倩,周成浩,蒋一秀,殷建玫,韩威..基于生长曲线分析琅琊鸡母鸡的保种效果[J].经济动物学报,2026,30(4):260-264,5.基金项目
江苏省农业科技自主创新项目[CX(24)3001],国家重点研发计划"农业生物种质资源挖掘与创新利用"重点专项(2021YFD1200803),江苏省种业振兴"揭榜挂帅"项目[JBGS(2021)029] （24）
