| pcr-based study of conserved and variable dna sequences of tritrichomonas foetus isolates from saskatchewan, canada. | the protozoan parasite tritrichomonas foetus causes infertility and spontaneous abortion in cattle. in saskatchewan, canada, the culture prevalence of trichomonads was 65 of 1,048 (6%) among 1,048 bulls tested within a 1-year period ending in april 1994. saskatchewan was previously thought to be free of the parasite. to confirm the culture results, possible t. foetus dna presence was determined by the pcr. all of the 16 culture-positive isolates tested were pcr positive by a single-band test, bu ... | 1995 | 7615746 |
| the effects of tritrichomonas foetus and nutritional status on the fertility of cows on a community pasture in saskatchewan. | a prospective observational study of a breeding season in a saskatchewan community pasture was carried out to determine the cause or causes of a chronic infertility problem. there were 774 cows, from 27 herds, divided into 4 breeding groups (a,b,c,d) on the pasture. cows entering the pasture in may were weighed, had their body condition scored and height measured. all bulls received breeding soundness examinations and a preputial wash, which was cultured for tritrichomonas foetus and campylobact ... | 1998 | 9789675 |