Odeyinka et al., 2007. Livest. Res. Rural Dev., 19: 125
In a fourteen week trial, fifty-six weaner rabbits comprising of New Zealand White, Chinchilla and California breeds of both sexes, aged 5-6weeks, and weighing 250.6g-596.0g were equally allotted to four experimental diets in a completely randomized design to evaluate and determine the utilization of soybean milk residue, cowpea testa (cowpea seed waste), corn starch residue and maize-groundnut-cake (a control diet) by rabbits. There were no significant differences in the mean dry matter intakes of animals on the four diets. The mean dry matter intake (48.36g/day/animal) on the control maize-groundnut (CD) diet was lower than mean values of 48.84, 48.80 and 49.5g/day/animal, obtained by feeding soybean milk residue (SMRD), corn starch residue (CSRD) and cowpea testa (CTD) based diets respectively. Differences in the weight gains of animals on the four diets were not significant. Feed conversation ratio was 4.12, 4.08, 4.35 and 4.69 for animals fed CD, SMRD, CSRD and CTD, respectively. There was no significant difference in hot dressing percentage. The dressing percentage was 52.5, 52.9, 53.3 and 51.3% for animals fed CD, SMRD, CTD and CSRD diets, respectively. The weights of the kidney, stomach, kidney fat, head, heart, lung and skin of rabbits on different diets were not significantly different (P>0.05) while the liver, caecum and small intestine were significantly different (P<0.05). Weaner rabbits can utilize soybean milk residue, cowpea testa and corn starch residue without adverse effect on their performance. Soybean milk residue, corn starch residue and cowpea testa can replace maize and groundnut cake in the diet of weaner rabbits.