No dietary effect was detected on the total number of ciliated protozoa or the numbers of Entodinia spp.,
and Dasytricha spp. in ruminal fluid. However, the numbers of Isotricha spp. were less (P < 0.05) in the ruminal fluid of cows offered the EGM diet compared with the CON diet. Dietary treatment had no effect (P > 0.05) on the concentrations of H2, CH4, and CO2 in the rumen headspace