TY - JOUR T1 - Comparison of Non-linear Growth Models to Describe the Growth in Japanese Quail AU - Aksoy, Tulin AU - Firat, Mehmet Ziya AU - Narinc, Dogan AU - Karaman, Emre JO - Journal of Animal and Veterinary Advances VL - 9 IS - 14 SP - 1961 EP - 1966 PY - 2010 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2010.1961.1966 UR - https://makhillpublications.co/view-article.php?doi=javaa.2010.1961.1966 KW - Growth curve KW -goodness of fit KW -Japanese quail KW -Non-linear regression models KW -breeding KW -Turkey AB - Growth is one of the well-known features in biological creatures. The evolution of body weight during growth is of particular importance in both breeding and management. In the present study, the adequacy of 11 mathematica l functions, (Gompertz, Richards, Logistic, Bertalanffy, Brody, Negative Exponential, Morgan-Mercer Flodin and three Hyperbolastic models) used to model growth characteristics of Japanese quails were compared. For this purpose, the live-weight data obtained weekly from 499 quails were fitted to aforementioned non-linear models. The results of the analysis indicated that the Gompertz model is the most appropriate one in terms of goodness of fit criteria (R2 = 0.99998, R= 0.99997, MSE = 0.318, RM = 0.03019, RSD = 0.60868, AIC = -2.010, BIC = -2.172) followed by the Richards and H3 models. Weight and age at the inflection point for Gompertz equation were calculated as 81.70 g and 14.95th day, respectively. ER -