Modelling Growth Curves to Predict Live Weight, Weight Gains and Suitable Slaughter Age for Mia Chicken

Received: 12-04-2022

Accepted: 05-07-2022

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Issue: Vol. 20 No. 7 (2022)

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CHĂN NUÔI – THÚ Y – THỦY SẢN

How to Cite:

Tuan, H., Bo, H., Dang, P., Trach, N., Thinh, N., & Doan, B. (2024). Modelling Growth Curves to Predict Live Weight, Weight Gains and Suitable Slaughter Age for Mia Chicken. Vietnam Journal of Agricultural Sciences, 20(7), 900–910. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/1018

Modelling Growth Curves to Predict Live Weight, Weight Gains and Suitable Slaughter Age for Mia Chicken

Hoang Anh Tuan (*) 1 , Ha Xuan Bo 1 , Pham Kim Dang 1 , Nguyen Xuan Trach 1 , Nguyen Hoang Thinh 1 , Bui Huu Doan 1

  • 1 Khoa Chăn nuôi, Học viện Nông nghiệp Việt Nam

    • Keywords

    Mia chicken, growth functions, bodyweight gain, slaughter age

    Abstract


    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.

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