The response of limousin x friesian steers fed silage and concentrates to the addition of supplemental yeast culture (yea-sacc) and/or antibiotic additive (avotan)

Abstract

Supplementation with Yea-sacc - yeast (Saccharomyces cerivisiae ‘1026’) and its growth medium or with Avotan - an antibiotic feed additive has been found by several workers to alter rumen fermentation patterns and animal performance. This experiment investigated the effect of inclusion of these supplements on their own or in combination in the concentrates of silage fed steers on rumen fermentation and animal performance.