| composition of the rumen ciliate population in experimental herds of cattle and sheep in lethbridge, alberta, western canada. | rumen ciliate populations were surveyed in 11 holstein cattle and 6 sheep in lethbridge (alta., canada) to determine species distribution in this western canadian environment. a total of 28 ciliate species were identified in cattle and 17 in sheep. the average total number of ciliates per millilitre of rumen content was 6.9 x 10(4) in cattle and 1.9 x 10(5) in sheep. the average number of species per host was 20.5 in cattle and 13.8 in sheep. of the ciliate species detected, species of entodiniu ... | 1989 | 2504472 |