Akademik Veri Yönetim Sistemi
5 th International Animal Nutrition Congress, Antalya, Türkiye, 11 - 14 Aralık 2025, ss.284-289, (Tam Metin Bildiri)
Introduction: This study evaluated the effects of different biotics, prebiotics, probiotics, and postbiotics on broiler carcass traits and organ weights, emphasizing their potential as natural alternatives to antibiotics for sustainable poultry production. Materials and methods: A total of 320-day-old broiler chicks were used and randomly assigned to four treatment groups with four replicates per treatment and 20 birds per replicate. Treatments groups consisted of control (only basal diet), PRE; prebiotic (Basal diet+1.5% Saccharomyces cerevisiae based-Mannan oligosaccharides), PRO; probiotic (basal diet+1.5% live Saccharomyces cerevisiae), and POS; postbiotic (basal diet+0.3% Saccharomyces cerevisiae based postbiotic). Results: Results of the study exhibit that significantly higher live weight, hot carcass, cold carcass, liver, spleen, and pancreas weights were observed in the treatment groups than in the control group. Liver weight was higher (P<0.05) in the control group than in the treatment groups, while gizzard weight was higher (P<0.05) in the postbiotic and probiotic groups. Heart, intestine, and bursa of Fabricius remained unaffected (P>0.05). Postbiotic exhibited higher (P<0.05) proventriculus weight as compared to other treatment groups and the control group. Conclusion: Based on these findings, it can be concluded that supplementation of broiler feed with prebiotics, probiotics, and postbiotics significantly enhanced carcass traits in broiler chickens, with the greatest improvements observed in postbiotics, followed by probiotics and prebiotics. These findings suggest that such biotic additives can serve as effective natural alternatives to antibiotics.