Mathematical Models for Egg Production Curves of Caged Huainan Partridge Chicken

In order to understand the egg production rule of Huainan partridge chicken, the egg production curve of Huainan partridge chicken from 22to 60weeks old was analyzed and fitted with four mathematical models of Wood, McMillan, Yang and Ali-Schaeffer.The results showed that, the goodness of fit (R2) of four models were different and ranged from 0.391to 0.975.Wood model was not appropriate to predict the variation for egg production curve of caged Huainan partridge chicken (R2=0.391) .The egg production curves could be fitted well with three models of McMillan, Yang and Ali-Schaeffer, the fitness of Yang model was the highest of all (R2=0.975) .The result indicated that Yang model was the optimum model of egg production for caged Huainan partridge chicken.