TITLE:
Comparative Study on Growth and Developmental Model of Indigenous Chicken Breeds in China
AUTHORS:
Zhenhua Zhao, Shoufeng Li, Huayun Huang, Chunmiao Li, Qianbao Wang, Longgang Xue
KEYWORDS:
Indigenous Chicken, Growth Curve, Fitting Model, Weight
JOURNAL NAME:
Open Journal of Animal Sciences,
Vol.5 No.2,
April
28,
2015
ABSTRACT: The growth and development regularity and genetic parameters were described in three types of indigenous chicken in China, Shaobo, Huaixiang and Youxi Chicken, by 3 nonlinear mathematics models, Logistics, Gompertz and Bertalanfy, according to the data of Body Weight from 1 week to 10 weeks. The results showed that the growth process of the three breeds could be illustrated well by three models, and the indices of fitness were very high (more than 0.99). Among the 3 models, Gompertz model was the best for its less bias from practice. The inflexions of growth were 5.98, 5.11 and 6.16 weeks of age, and body weights were 2115.77 g, 1499.08 g and 1409.62 g, respectively in Shaobo Chicken, Huaixiang Chicken and Youxi Chicken.