O.C. Aniedu and D.N. Udozuwe
The poultry industry in Nigeria today is plagued by various problems such as capital, poor management and high cost of feeds and feed ingredients. With the ever increasing demands for protein by Nigerians, large importation of cereals, like maize, wheat etc. used in feed formulation has contributed to the massive drain of our foreign exchange reserves. Substitution of cassava for maize in poultry feed formulation at 0%, 50%, 75% and 100% levels proved successful by Ngoka (1984) but the relative cost of substitution is yet to be determined. The main objective of this work therefore was to determine the relative cost of substitution of cassava root meal for maize in poultry feed formulation. Data collection on prices of fresh cassava tubers and feed ingredients was carried out in the following markets and feedmills – Nkwoachara. Nkwoegwu, Ndoro, Ahiaeke and over-rail markets. Imo modern poultry feedmill Avutu, Pfizer feedmill Aba, ADC feedmill Nekede and National Root Crops Research Institute Umudike feedmill. Cassava root meal was produced by the Processing unit, National Root Crops Research Institute Umudike, with 12 month-old fresh cassava tubers of three varieties – TMS 30572, TMS 30555 and TMS 30211. The cost of production of the cassava root meal was determined and it contained 28.0 mg/kg hydrocyanic acid, 2.4% crude protein, 0.9% fat and 3 1% crude fibre. The moisture content was 8.5%. Result showed the cost of 75% substitution was cheaper in cassava root meal based ration (N19,886.70/t of feed) than in the maize-based ration (N27,847 50/t ot teed) Benefit-cost ratio for the cassava-root meal based ration was 1.30 but for the maize-based ration it was 0.94. Consequently it can be concluded that it is profitable to substitute cassava-root meal for maize at 75% level in poultry feed formulation.