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

Year 2021, Volume: 18 Issue: 1, 19 - 23, 30.06.2020

Widya Pintaka Bayu Putra

https://doi.org/10.34233/jpr.901581

Cited By: 1

Abstract

Rock partridge (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 (BW) in mixed-sex Rock partridges using non-linear regression of Gompertz (G), Logistic (L) and Richards (R) models. The computer program of CurceExpert 1.4. was used in this study to calculate the growth parameters of asymptotic weight (A), maximum growth rate (MGR), inflection of weight (IW), inflection of age (IA), coefficient of determination (R2) and mean squared error (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

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