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HomePhilippine Journal of Veterinary and Animal Sciencesvol. 32 no. 1 (2006)

Development of the Bio-Economic Model Of Native Chicken Production System For Coconut-Based Farming System In Dolores, Quezon

Veneranda P. Anila-magpantayl | Enrico P. Supangco | A.y. Pacificador Jr. | Cesar C. Sevilla | Angel L. Lambio

Discipline: Veterinary Medicine, Animal Science



A dynamic stochastic model of native chicken production system under coconut-based farming system was built using STELLA 4.0. Primary and secondary data from the real system was obtained and used in model building. Starting flock consisted of 1 rooster and 5 hens. Results showed that in the base situation, the number of hen per year remains stable during the simulated period of five yean. This indicates that the model reflects the behavior of relatively stable poultry flock. The total number of chicken sold during the simulated period was distributed as 34.1 cockerels, 32.4 pullets and 4:2 hens. Two ready-to-lay pullets were purchased at the start of dry season (November) following NCD outbreak, which occurred on the 2-d and 4t11 years of production. The model was sensitive to changes in hen mortality, selling rate of hen, clutch sizes, selection rate, and household chicken consumption. The model was used to assess the effect of vaccination and time of confinement of brooding hens on the population dynamics. All interventions tested increased the number of growers produced and sold. Highest number of grower produced was noted when vaccination and artificial brooding of chicks were practiced. Economic analysis revealed that vaccination and complete confinement of brooding hen during the dry season was economically most effective. The model can be a part of research and development approaches to test possibilities of interventions in native chicken production system.