| sensitivity to avian purified protein derivative in cattle from farms having a high prevalence of swine mycobacteriosis. | on two farms in north georgia a large percentage of the swine was infected with organisms of the mycobacterium avium-intracellulare-scrofulaceum complex. the hypothesis that the cattle on these farms, which are maintained separately from the swine, would not be sensitive to avian purified protein derivative was rejected. it was concluded that the source of the m. avium-intracellulare-scrofulaceum complex of each animal population is environmental. | 1981 | 7235698 |
| the seroprevalence of johne's disease in georgia beef and dairy cull cattle. | beef and dairy cattle serum samples, collected during 2000 at sale barns throughout georgia, were obtained from the georgia state brucellosis laboratory and were used to conduct a retrospective epidemiological study. statistical samplings of 5,307 sera, from over 200,000 sera, were tested for antibodies to mycobacterium avium ssp. paratuberculosis, (johne's disease) using a commercial enzyme-linked immunosorbent assay test kit. an overall period seroprevalence in all classes of cattle tested was ... | 2003 | 14535551 |