不同狼山鸡累计产蛋数曲线拟合和比较分析  

Various Curve-fitting and Comparative Analysis of Accumulative Egg Production of Langshan Chicken

作　　者：殷建玫[1] 李国辉[1] 苏一军[1] 张学余[1] 屠云洁[1] 

机构地区：[1]中国农业科学院家禽研究所,江苏扬州225003

出　　处：《江西农业学报》2012年第2期136-137,共2页Acta Agriculturae Jiangxi

基　　金：江苏省自然科学基金资助(BK2011431)

摘　　要：运用Logistic、Gompertz和Bertallanffy 3种被广泛采用的非线性生长模型对狼山鸡的累计产蛋数进行拟合分析,结果表明,3种模式都能很好地对其累计产蛋数进行拟合,拟合度(R2)都在0.99以上,但Bertallanffy模型对狼山鸡的累计产蛋数拟合效果更佳,Bertallanffy模型拟合的拐点日龄和拐点产蛋数更为准确;进一步分析Bertallanffy模型拟合参数,发现狼山鸡的拐点产蛋数为66.142个,狼山鸡的拐点日龄275.412 d,在生产中可以运用该模型对狼山鸡的饲养日累计产蛋数进行估计与预测。The curve-fitting analysis of the accumulative egg production of Langshan chicken was conducted by using 3 kinds of widely-used nonlinear growth models： Logistic,Gompertz and Bertallanffy model.The results showed that these 3 kinds of models all could well simulate the accumulative egg production,and their fitting degree（R2） all reached above 0.99,but the fitting effect of Bertallanffy model was the best,and this model got more accurate inflexion day-age and inflexion egg production.Further study on the fitting parameters of Bertallanffy model indicated that the inflexion egg production of Langshan chicken was 66.142 eggs,and its inflexion day-age was 275.412 days.Therefore,Bertallanffy model could be used to estimate and forecast the accumulative egg production of Langshan chicken in the actual production.

关 键 词：狼山鸡 累计产蛋数 产蛋曲线 非线性模型 

分 类 号：S831[农业科学—畜牧学]