EVALUATING THE ROLE OF YEAST AS A PREBIOTIC IN SMALL AND LARGE RUMINANT NUTRITION

Abstract

This study investigated the effects of yeast supplementation as a prebiotic in the diets of small and large ruminants, focusing on its impact on feed intake, rumen microbial activity, and overall productivity. The experiment involved two ruminant species—sheep (small ruminants) and cattle (large ruminants)—divided into control and treatment groups that received diets with or without yeast supplementation. Over a 12-week period, key performance indicators, including feed conversion ratio, body weight gain, and rumen microbial fermentation, were evaluated. Results indicated that yeast inclusion significantly improved feed efficiency and enhanced rumen microbial populations, particularly those involved in fiber digestion. Animals receiving yeast supplementation exhibited greater weight gain and overall health status compared to the control group. These findings highlight yeast’s potential as an effective prebiotic for improving digestive function and promoting growth performance in ruminants. The study provides valuable insights for livestock producers seeking to optimize animal health and productivity through dietary interventions.