EVALUATION OF INDIVIDUAL BODY WEIGHT IN ROSS 308 MALE AND ARBOR ACRES MALE BROILER USING GROWTH CURVE MODEL

Résumé

Understanding of animal growth is important for the improvement of management and feeding practices. Thus, this study was carried out to determine the appropriate growth curve of Arbor acre and Ross 308. In the study, the individual growth weight of 50 males each of Arbor acre and Ross 308 chicken, using Gompertz mode were evaluated. The weight of each bird was taken. Estimate asymmetric weight (a) ranged from 6073.7 for Ross male and from 4341.8 for Arbor male, respectively. The age at the inflection point was estimated from 16.0 weeks for arbor acres and 20.0 weeks for Ross respectively. In conclusion, the Ross 308 has more growth curve. The parameter obtain from growth models could help define feeding programs to meet nutritional needs from hatching to the age of maximum growth, reproduction programs and marketing strategies.