Effect of the addition probiotic Saccharomyces cerevisiae in diet on ammonia gas in pens of ducks

This study investigates the effects of the probiotic Saccharomyces cerevisiae on protein digestibility and gas emissions in pens of ducks. We conducted a series of experiments to evaluate the impact of dietary supplementation with Saccharomyces cerevisiae on the protein digestibility profiles and gas emissions on the ducks. A total of 24 grower ducks were randomly assigned to one of four treatments, which consisted of (T0) basal diet (without yeast); (T1) basal diet + Sc yeast 0.5 g/kg feed; (T2) basal diet + Sc Yeast 1.0 g/kg feed; and (T3) basal diet+ Sc Yeast 1.5 g/kg feed. The experiment was conducted with a completely randomised design, with five replications for each treatment. The ducks were reared for 35 d. On d 35-38 we observed nutrient digestibility and d 40 gas analysis using a chamber on 2, 4, 8 and 12 h after incubation. The results demonstrated that yeast supplementation did not have a significant effect on retention nitrogen. Yeast supplementation dose 0.5 g/kg can effectively reduce ammonia production after 2 hours after incubation. Our findings suggest that incorporating Saccharomyces cerevisiae into the diet of ducks is a promising mitigating environmental impacts associated with ducks waste.