Evaluation of antibody titers of Noiler chickens fed with different biotic additive against Newcastle disease

Résumé

Immunity plays a key role in maintaining animal health, and thereby helps to enhance performance in livestock. The focus of alternative antibiotic growth promoters (prebiotic, probiotic, and symbiotic) strategies has been to prevent proliferation of pathogenic pathogen and to improve the immune status and performance of livestock. Atotal of 360, day old Noiler chickens were randomly distributed into 12 treatments with 3 replicates of 10 birds each. Experimental treatments consisted of 4 different growth promoters (probiotic, prebiotic, symbiotic and antibiotic) at 3 inclusion rates (0, 0.5 and 1g) into kg of feed respectively. The chickens were reared for a period of 42 days to evaluate the titer value of the bird fed with different growth promoters (prebiotic, probiotic, symbiotic and oxytetracycline antibiotic). The results obtained revealed significant differences in (P<0.05) in the Newcastle disease titer value of birds fed with different growth promoters with prebiotic having the best value (4.67), followed by symbiotic (4.55) and the inclusion of growth promoters at 1g into a kg of feed were significantly improved for prebiotic (6.00) and symbiotic (5.60) as compared to 0.5 and 0 g level of inclusion across the biotic additives. Hence it could be concluded that inclusion of prebiotic improved the Newcastle disease titer value of Noiler chicken at 1g/kg of feed.