Received: 12-04-2022 / Accepted: 05-07-2022
This study was carried out to determine growth curve models for estimating live weight, weight gains and suitable slaughter age for commercial Mia chicken. A total of 300 (150 males and 150 females) birds were raised from 1 to 20 weeks of age and individual live weight data were colletced every week. Three growth functions, viz.Gompertz, Logistic, and Lopez, were used to be fitted with the growth data. The results showed that Gompertz function and Lopez function were the best models for describing the growth curves of the male and the female, respectively. The weekly gain (WGt) reached the maximum at the 10thweek and the 9thweek of age for the male and the female, respectively. The maximum of the average weekly gain (AWGt) was obtained at the 15thweek and the 14thweek of age for the male and the female, respectively.Furthermore, it was estimated that the suitable slaughter time was within 15th-16thweeks of age for the male and 14th-15thweeks for the female of Mia chicken.