The Growth Curve of Body Weight in Mixed-sex Rock Partridges (Alectoris graeca) Kept in captivity

Authors : Widya PİNTAKA BAYU PUTRA

Pages : 19-23

Doi:10.34233/jpr.901581

View : 16 | Download : 10

Publication Date : 2020-06-30

Article Type : Research Paper

Abstract :Rock partridge insert ignore into journalissuearticles values(Alectoris graeca); can be domesticated for meat and egg production poultry. This study was carried out to obtain the growth curve model of body weight insert ignore into journalissuearticles values(BW); in mixed-sex Rock partridges using non-linear regression of Gompertz insert ignore into journalissuearticles values(G);, Logistic insert ignore into journalissuearticles values(L); and Richards insert ignore into journalissuearticles values(R); models. The computer program of CurceExpert 1.4. was used in this study to calculate the growth parameters of asymptotic weight insert ignore into journalissuearticles values(A);, maximum growth rate insert ignore into journalissuearticles values(MGR);, inflection of weight insert ignore into journalissuearticles values(IW);, inflection of age insert ignore into journalissuearticles values(IA);, coefficient of determination insert ignore into journalissuearticles values(R2); and mean squared error insert ignore into journalissuearticles values(MSE);. Study showed that all models have similar R2 value but the lower MSE value was showed in R model. Hence, the R model can be used to predict the BW in mixed-sex rock partridges from hatching to adult age accurately. In conclusion, the A, IW and IA values in rock partridges with all models were 442.57 - 513.25 g; 188.69-221.29 g and 5.48-6.69 weeks respectively.
Keywords : Body weight, Growth curve, Inflection, Non linear regression, Rock partridge