Effect of the microbial additive Levucell® SC on microbial activity in the rumen during the stepwise adaptation of sheep to high concentrate diet B. Michalet-Doreau, D. Morand and C. MartinReprod. Nutr. Dev., 37 Suppl. 1 (1997) 81-82DOI: https://doi.org/10.1051/rnd:19970767