The Use of Saccharomyces cereviceae as an Antibiotic Alternative on the Protein and Energy Utilization at Broiler

Abstract

An experiment was conducted to examine the effect of S. cereviceae and S. cereviceae containing zinc as alternative of antibiotic growth promoter on nutrient utilization in broiler. A total of 180 of chicks were randomly assigned into four treatments with 5 replications. The four treatments were : 1) positive control (T+) : basal diet + oxytetracycline (75 ppm); 2) negative control (T0) : basal diet ; 3) T1 : basal diet + S. cereviceae (1%); 4) T2 : basal diet + S. cereviceae containing zinc (1%). The experiment was arranged in a completely randomized design. Nutrient utilitization comprised of dry matter digestibility, protein retention, protein efficiency ratio (PER) and metabolism energy. The data were analyzed using anova and continued by the Duncan’s multiple range test. The result showed that metabolism energy was not significantly different but the dry matter digestibility, protein retention and protein efficiency ratio were significantly different (p < 0.05). This experiment demonstrated that feed additive of S. cereviceae had positive impact to utilized nutrient in broiler as well as antibiotic did. Keywords: broiler, probiotic, protein, S. cereviceae, zinc