7COBO E R,CANO D,CAMPERO C M.Experimental infection with Tritrichomonas suis in heifers[J].Vet Parasitol,2001,99(1):73-78.
8LUN Z R,CHEN X G,ZHU X Q,et al.Are Tritrichomonas foetus and Tritrichomonas suis synonyms?[J].Trends Parasitol,2005,21(3):122-125.
9FELLEISEN R S.Comparative sequence analysis of 5.8 S rRNA genes and internal transcribed spacer(ITS)regions of trichomonadid protozoa[J].Parasitology,1997,115(Pt2):111-119.
10XU W D,LUN Z R,GAJADHAR A.Chromosome numbers of Tritrichomonas foetus and Tritrichomonas suis[J].Vet Parasitol,1998,78(4):247-251.