Figure 2.

Effects of basal diet, grain or forage (Panel A), and cattle breed, Holstein or Angus (Panel B), on Bray–Curtis metric graphed using a nonmetric multidimensional scaling. There was a diet effect (P<0.01), meaning that rumen content samples from cattle fed grain-based diets differed from rumen content samples from cattle fed forage-based diets in terms of bacterial communities composition, regardless of breed. However, no main effect of breed was observed (P = 0.45) on Bray–Curtis metric, meaning that it is not possible to differentiate rumen content samples collected from Angus or Holstein in terms of bacterial communities composition, regardless of diet.