title: Observation of free-living protozoa in treatment process of anaerobic fermentation of swine feces.
mesh_terms: D000693:Anaerobiosis; D000818:Animals; D056890:Eukaryota / Q000302:isolation & purification*; D005243:Feces / Q000469:parasitology*; D005285:Fermentation; D013552:Swine / Q000469:parasitology*