Abstract
This study evaluates the production performance, immune responses and carcass traits in broiler chickens (0 to 42 days) fed diet with incorporated Kappaphycus alvarezii (AF-KWP). Day-old chicks (280) were randomly distributed into 35 groups with 8 chicks in each group (7 dietary treatments × 5 replicates). Seven experimental diets were formulated by adding 0 (control—T1), 0.25 AF-KWP (T2), 0.50 AF-KWP (T3), 0.75 AF-KWP (T4), 1.00 AF-KWP (T5), 1.25 AF-KWP (T6) and 1.50 AF-KWP (T7) respectively. Body weight gain (g) significantly (P 0.05) by the feeding of diets containing different levels of AF-KWP. Haemagglutination (HA) titre and cell-mediated immunity (CMI) were significantly increased (P 0.05) difference was recorded in the percentage of carcass traits and organ weights but significant improvement (P < 0.05) was recorded in cut up parts (percentage of live wt.) between the control and some AF-KWP-supplemented groups. From the results, it may be concluded that K. alvarezii (AF-KWP) can be incorporated at 1.25% level in broiler diets for improved performance, immuno-responsiveness and breast yield in broiler chickens.
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