Ivano Neira; Carole R. Engle; Charles Ngugi
Type of Document:
Journal of Applied Aquaculture
Date of Publication:
Place of Publication:
Abstract: Commercial production of tilapia in Kenya has potential for expansion, but growth and development of the tilapia industry in Kenya will depend upon its profi tability and the effect of associated risks. Data from pond experiments, on-farm trials, and farm surveys were used to develop enterprise budgets and a risk analysis for nine production scenarios. The nine scenarios include: 1) monoculture of sex-reversed male tilapia fed either rice bran, a pelleted experimental diet, or a pelleted pig fi nisher diet; 2) clarias monoculture fed with each of the three diets; and 3) tilapia-clarias (sex-reversed male fi ngerlings) polyculture fed with each of the three diets. Net returns/ha were highest for production with the pig fi nisher diet, with
clarias in monoculture the highest followed by tilapia in monoculture and then the polyculture system. The lowest net returns/ha were obtained with clarias fed rice bran. Profi tability was affected by feed cost and tilapia survival. Tilapia monoculture systems had lower probabilities of financial losses than either clarias monoculture or the polyculture system. Use of the pelleted diets also resulted in lower probabilities of fi nancial losses. Lower yields from the rice bran feed scenario resulted in its greater sensitivity to fl uctuating costs of rice bran and survival of tilapia.