The effect of Saccharomyces cerevesiae (BIOSAF Sc 47) on ruminal flora and rumen fermentation pattern in dairy cows B. Gedek, C. Enders, F. Ahrens and C. RoquesAnn. Zootech., 42 2 (1993) 175DOI: https://doi.org/10.1051/animres:19930243