ABSTRACT
The principal sites of microbial fermentative activity in the intestinal tract of herbivorous mammals are located either in an enlarged forestomach or in the large intestine (Bauchop, 1977; McBee, 1977). Evolutionary anatomical and physiological adaptations have occurred at these sites to aid the retention of digesta and encourage microbial colonization. The conditions that prevail within these eco-systems allow diverse protozoa-containing microbial populations to develop; these intestinal protozoal populations are host specific (Dehority, 1986; Hungate, 1988).
