摘要
选用从美国安伟捷公司引进的1日龄罗斯308祖代D系肉种鸡10823只，监测其0～20周的生长性能和生活力性状，并采用Logistic、Gompertz和VonBertalanffy3种非线性数学模型对其生长曲线进行拟合。结果表明：罗斯308祖代D系肉种鸡在良好的饲养管理下生长发育正常、均匀度较高，死淘率低；3种数学模型均能很好地拟合罗斯祖代D系肉种鸡的生长曲线，拟合度均在0．98以上，比较拟合度、成熟体重、生长拐点、最大周增重等指标，以VonBertalanffy方程的拟合效果为最佳。
A total of 10823 Ross 308 grandparent stock were used to monitor their growth per- formance and viability. Three mathematic models including Logistic, Gompertz and Von Berta- lanf/y were applied to fit the growth curve of Ross 308 grandparent stock. The results showed that Ross 308 grandparent stock well developed with higher body weight uniformity, lower mor- tality and culling rate under the good management. The growth curves could be fitted well with three non - linear models and degrees of fitting were more than 0.98. Compared the parameters of degree of fitting, matural body weight, growth inflexion and maximum weekly gain, Von Berta- lanffy model was the best effect on fitting the growth curve.
出处
《河南农业科学》
CSCD
北大核心
2009年第8期128-131,共4页
Journal of Henan Agricultural Sciences
基金
河南省重点科技攻关项目(072102210102)
