Effect of New Feed Additive on Growth Performance and Immunoglobulin of Broilers

Recently postbiotics and inulin combinations used as a new feed additives. Within current study, we examined the effect of new feed additives on growth performance and immunoglobulin of broiler. 216 one day-old male chicks were distributed into six treatments, six replicates/six birds in cage system, negative control (NC) without additive, positive control (PC) basal diet + antibiotic, Basal diet + 0.15% postbiotic + 1.0% inulin (T1), Basal diet + 0.3% postbiotic + 1.0% inulin (T2), Basal diet + 0.45% postbiotic + 1.0% inulin (T3), Basal diet + 0.6% postbiotic + 1.0% inulin (T4) and nourished for six weeks. Results demonstrated that birds that fed T3 and T1 had greater (p<0.05) body weight in the starter and finisher phase than negative control birds. The outcomes from the current study exhibited that the immune response increased especially at the starter phase for both types of immunoglobulin. We conclude that combinations of postbiotic and inulin are potential substitutes for antibiotic in poultry industry as growth promoters.