Effect of Saccharomyces cerevisiae Supplementation on Reproductive Performance and Ruminal Digestibility of Queue Fine de l’Ouest Adult Rams Fed a Wheat Straw-Based Diet

This study aimed to investigate the effect of supplementing a wheat straw-based diet with Saccharomyces cerevisiae (S.C.) on feed intake, nutrient digestibility, nitrogen balance, body weight and reproduction performance. The experiment was conducted 14 Queue Fine de l’Ouest rams between 3 4 years age (body (B.W.): 54.7 ± 2.03 kg; condition score (B.C.S.): 3.5 0.5), for 80 days during breeding season. were divided into two homogenous groups (n = 7), housed individually in floor pens, allocated dietary treatments. control group offered basal 1 kg/d straw 700 g concentrate. experimental (yeast) received same supplemented 10 S.C./head/day. results indicated that S.C. supplementation had no significant animal’s weight, volume concentration semen, dry matter crude protein digestibility balance. Compared group, addition improved (p < 0.05) by 7.3%, organic 11.9% fiber 24%. In addition, mass motility increased yeast compared (3.7 0.24 vs. 1.9 0.27, p 0.05). total number dead abnormal spermatozoa decreased contrast (9.28 0.95 26.8 3.85% 25.5 3.33 59.2 2.78%, respectively; These showed adding ram’s season could improve reproductive