Bio-economics and growth performance of feeding broilers with rice waste, palm kernel cake and spent grain diets fermented with liquid spent brewer’s yeast

Abstract

Eight (8) weeks research was carried out to determine the effect of feeding broilers rice waste, palm kernel cake and spent grain fermented with liquid spent brewer’s yeast (LSBY) on growth performance and cost benefit. One hundred and eight (108) day-old Agritted broiler birds were brooded and fed commercial diet at the starter phase for 2 weeks. At 3 weeks old, they were
weighed and assigned randomly to 4 treatment of 27 birds each in a completely randomized design (CRD). Each group was randomly assigned to one of the 4 starter diets (0kg fermented diet for control and 21.07kg of rice waste, palm kernel cake and spent grain fermented with LSBY; 21.56- 23.20% CP) and 4 finisher diets (0kg fermented diet for control and 24.15kg of rice waste, palm
kernel cake and spent grain fermented with LSBY; 19.07-19.92% CP). Each treatment was replicated thrice with 9 birds each; feed and water were provided ad-libitum. Result on growth performance showed significant (P<0.05) differences in final body weight, weight gain, feed intake and feed conversion ratio. The result showed that the final body weight of the broilers ranged from
1.84-2.00kg, total weight gain (1.35-1.51kg), average daily weight gain (32.24-35.99g), total feed intake (8.28-8.95kg), average daily feed intake (192.63-208.35g) and feed conversion ratio (5.53- 6.47) across the treatments, respectively. Results on feed cost per kg gain showed significant (P<0.05) differences; indicating that T3 had the lowest value of 98.76N/kg followed by T2 (114.11N/kg), T1 (123.01N/kg) and the control with the highest value of 146.06 N/kg. Fermentation of rice waste, PKC and spent grain with LSBY positively improved the nutritive value of the diet which will lead to increase in poultry farmers’ income.
Keywords: Spent brewer’s yeast, Broiler performance, Rice waste, Palm kernel cake, Spent