Effects of Saccharomyces cerevisiae fermentation products (SCFP) on rumen microbiota were determined in vitro and in vivo under a high and a depressed pH. The in vitro trial determined the effects of Original XPC and NutriTek (Diamond V, Cedar Rapids, IA) at doses of and g/L, respectively, on the abundances of rumen bacteria under a high pH (> ) and a depressed pH (–) using quantitative PCR (qPCR). |