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Nigerian Society for Animal Production Nigerian Journal of Animal Production © Carcass and organ weight changes of weaner rabbits fed varying inclusion levels of dehulled African yam bean (Sphenostylis stenocarpa) soaked in wood ash solution Amusa, H. O., Oseni, T. A., Ogungbenro, S. D., Egbinola, O. O. and Abu, Department of Animal Health and Production, Oyo state College of Agriculture and Technology, Igboora, Oyo State Nigeria 2 Department of Animal Science University of Ibadan, Ibadan Nigeria Corresponding contact: hammed4dtop@yahoo.com: +2348054146259 O. A. A total of thirty weaner rabbits were randomly allocated to five dietary treatments of six rabbits each in a completely randomized design to investigate the carcass yield and organ weight changes of weaner rabbits fed diets containing alkaline-soaked dehulled African yam bean (Sphenostylis stenocarpa) at 0 (control), 5, 10, 15 and 20% levels of inclusion. The rabbits were fed ad libitum for 56 days. The carcass yield showed that live weight, head, fore limbs, hind limbs, breast, back neck, pelt, tail and eviscerated weights were significantly affected (P<0.05) by dietary treatments. Organ weight however showed that heart, lungs, kidney, whole intestine and caecum were significantly affected by dietary treatments (P<0.05) and there was no significant (P>0.05) difference in weights of liver, gall bladder and spleen across the dietary treatments. Results showed that rabbits on T1 had the highest value of live weight (586.5g), fore limb (13.10%), hind limb (14.50%) and neck (1.02%) while the lowest value of fore limb and hind limb was recorded for rabbits on T5 (6.26). Rabbits on T4 had the highest value of pelt (8.57%), tail (0.50%) and chest (8.82%). The lowest value was recorded for rabbits on T5 (5.36%), T2 (0.38%) and T1 (6.14) respectively. Rabbits on T1 had the lowest value of heart (0.05%), lungs(0.05%) whole intestine (2.50%) and caecum (2.16%) while the highest value of heart (0.46%), whole intestine (18.81%) and caecum (5.46%) was recorded for rabbits on T4 with rabbits on T5 having the highest value of lungs (0.51%). It can be concluded that dehulled AYB soaked in alkaline medium can be fed to weaner rabbits at 5% level of inclusion promoted good carcass yield and without having adverse effects on the internal organs. However, further processing methods needs to be adopted to improve the feeding quality of legume seeds. Introduction In Nigeria, soybean and groundnut cakes are the premium plant protein feedstuffs in livestock feed because of their high protein values and availability. These two feed ingredients are however competed for by human and industrial usage, therefore resulting in scarcity, high prices of feed and livestock products (Musalia et al., 2005). This calls for the need to look for alternative protein sources that are cheaper and readily available. Dafwang (2006) had earlier

nigerian journal of animal production

Carcass and organ weight changes of weaner rabbits fed varying inclusion levels of dehulled African yam bean (Sphenostylis stenocarpa) soaked in wood ash solution