Abstract
The growth performance, carcass qualities, organ weights and cost-analysis of ninety-six (96) day-old (ROSS 308 strain) broiler birds fed diets containing immunowall® prebiotic additive were evaluated. The birds reared on deep litter system were randomly allotted to four (4) treatments of (0, 1.5, 3.0 and 4.5) g of immunowall® prebiotic additive denoted as; T1, T2, T3, and T4 respectively. Each treatment with 24 birds was also replicated three times with 8 birds per replicate in a completely randomized design for 56 days. Performance indicators measured included feed intake, body weight gain, feed conversion ratio, carcass parameters, and cost-benefit parameters. Results showed that immunowall® prebiotic additive elicited significant differences (P<0.05) across treatments with exception in organ weights. Bodyweight gain 2067.00g, and 2000.00g, (T2 and T3) were significantly higher in broilers fed diets with 1.50g and 3.00g immunowall® prebiotic additive. Cost-benefit values indicated that broilers birds fed 1.50g and 3.00g immunowall® prebiotic additive performed better for revenue (₦2,348.00 and ₦2,268.00) and gross margin (₦1,048.00 and ₦961.00). This is an indication that broiler birds fed diets containing 1.50g and 3.00g respectively of immunowall® prebiotic additive enhanced better performance characteristics. Further research is suggested in other avian species available in Nigeria.