Effect of addition of multi-enzyme and varying levels of toasted African yam bean seed meal on carcass characteristics and internal organs of broiler starter

Abstract

African yam bean seed is one of the underutilized legumes and a prospective feed ingredient in poultry diet. This study was carried out to examine carcass characteristics and internal organs of broiler starter fed partial replacement of toasted African yam bean seed meal supplemented with multi-enzyme (TAYBSM+E). There were five treatments: treatment one (T1) served as control without TAYBSM+E while T2, T3, T4 and T5 contained 20%, 40%, 60% and 80% TAYBSM+E, respectively and supplied experimental broiler birds for four weeks. Each treatment was randomly assigned to one of the five experimental diets in a completely randomized designed. Two hundred birds were allotted to five treatments replicated four times with 10 birds per replicate. At four weeks of age, experimental birds were starved for 12 hours; one bird was sacrificed per replicate (four per treatments), defeathered and cut into different parts. Carcass cuts and vital organs were carefully collected and weighed with sensitive scale. All parameters in the carcass cuts and internal organs weight examined were not statistically (P>0.05) influenced except intestine, lungs and thigh that significantly (P<0.05) different. It is concluded that toasted African yam bean seed meal supplemented with multi-enzyme is a good source of protein that can be used in broiler feeds safely up to 80% inclusion level to give satisfactory results.