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Performance and carcass characteristics of broiler fed raw and processed kenaf seed meal 1 2 3 2 1 * Odetola,O. M., Eruvbetine., D. Onagbesan. O. M., Oduguwa, O. O., Owosibo, A.O., 1 2 4 Ijadunola, T. I., Adetola, O.O., Sobayo, R. A. and O. A. Adeyemi 1 Federal College of Animal Health and Production Technology, P.M.B 5029, Moor Plantation, Ibadan, Nigeria. 2 3 Department of Animal Nutrition, Department of Animal Physiology, 4 Department of Animal Production and Health, Federal University of Agriculture, P.M.B 2240, Abeokuta, Nigeria. *Corresponding E-mail: odetolabayo@yahoo.com Two hundred and forty (240), unsexed day old Arbor Acre broiler chicks were used to evaluate the effects of replacing whole kenaf (Hibiscus cannabinus L.) seed meal (WKSM) with full fat soybean meal (FFSM) in the diets on the performance and carcass characteristics of broiler chicken in a 2 x 4 factorial arrangement, consisting two processing methods (raw kenaf seed meal RKM and roasted kenaf seed meal HKM) and 4 inclusion levels (0%, 10%, 20% and 30%). Both RKM and HKM were analysed for anti-nutritive factors, data were collected on performance, carcass characteristics and cost benefit. The results of anti-nutritive factors (ANF) in RKM and HKM revealed that HKM had lower values of 0.045%, 0.029mg/g and 0.013mg/g for tannin, oxalate and phytic acid respectively when compared to 0.078%,0.124mg/g and 0.026mg/g obtained for RKM (P<0.05). The performance of broiler chicken showed that birds on 10% RKM with an average weight gain and FCR of (2640.00g and 2.48) competed favourably with the control (2554.67g and 2.45). The results of carcass characteristics showed that birds on 10% and 20% inclusion levels had significantly (P<0.05) higher values of 64.25% and 65.58% for dressed weight respectively. In terms of weight gain and FCR, birds fed RKM performed better than birds fed roasted kenaf meal HKM. About 5% feed cost savings was made when WKSM was included in the diets of broilers. It was concluded that RKM and RKM can replace FFSB in broiler diets up to 10% without any detrimental effect on performance and carcass quality. Introduction Domestic animals continue to make important contributions to global food supply. Livestock products accounts for about 30 percent of the value of agriculture and 19 percent of the value of food production. Similarly, 34 percent of protein and 16 percent of the energy consumed in human diets are provided by livestock (Ominisi et al., 2012). Meeting consumer's demand for more meat, milk, eggs and other livestock products is dependent to a major extent on the availability of regular supplies of appropriate, cost effective and safe animal feeds and as a result, animal feeds