不同生长模型估计淮南麻鸭早期体重的发育规律及遗传参数研究  

Estimating the Growth Regularity and Genetic Parameters about Early Bodyweight of Huainan Partridge Duck with Different Growth Model

作　　者：李建柱 唐雪峰[1] 赵云焕[1] 赵聘[1] 

机构地区：[1]信阳农业高等专科学校动物科学系,河南信阳464000

出　　处：《湖北农业科学》2010年第8期1921-1923,共3页Hubei Agricultural Sciences

基　　金：河南省科技攻关项目(0524030031)

摘　　要：运用Gompertz、Richards和Logistic3种非线性生长模型对淮南麻鸭1～9周龄的平均体重进行拟合,并分析生长发育规律及遗传参数。结果表明,3种模型都能描述淮南麻鸭的生长过程,拟合度均超过了0.99,但Logistic模型更符合实际饲养的情况,能更好地预测体重,为最佳模型,其相应的体重极限参数a为2304.92g,调节参数b为13.11,瞬时相对生长率c为0.46,生长拐点周龄为3.35,拐点体重为847.93g。Growth and development regularity and genetic parameters of the Huainan partridge duck were analyzed.The average week bodyweight and week-old （ 1 to 9 week-old ） was fit with three non-lineared growth models, Gompertz model, Richards model and Logistic mode1.The results showed that the growth process of Huainan partridge duck could be demonstrated very well by three models, and all indexes of fitness were very high （more than 0.99）.But Logistic model was the best model because of its less bias of feed practice, and its genetic parameters of limited bodyweight, adjustable parameter and coefficient of growth were 2 304.92 g, 13.11 and 0.46 respectively.The inflection age of growth was 3.35 weeks, and bodyweight at inflection age was 847.93 g.

关 键 词：淮南麻鸭 生长模型 生长发育 遗传参数 

分 类 号：S834.83[农业科学—畜牧学] O242.1[农业科学—畜牧兽医]