Fig. 5.

Proportion of neurochemically defined subpopulations in the rumen of different species. Within all four species, the proportion of the subpopulation was in descending order: ChAT/SP > NOS/NPY/VIP > ChAT/– = NOS/NPY (the significant differences between the relative sizes of the subpopulations are not indicated in the figure). *Asterisks indicate significant (P < 0.05) differences within one subpopulation between species (two-way anova with subsequent Student–Newman–Keuls test). Data were obtained from 5–11 preparations from 4–10 animals.