title: Rumen ciliate populations in fistulated cows.
mesh_terms: D000818:Animals; D002417:Cattle / Q000469:parasitology*; D016798:Ciliophora / Q000302:isolation & purification*; D005260:Female; D005402:Fistula; D012417:Rumen / Q000469:parasitology* / Q000601:surgery