| differential serologic response to mycoplasma ovipneumoniae and mycoplasma arginini in lambs affected with chronic respiratory disease. | an enzyme-linked immunoabsorbent assay (elisa) was used to evaluate the levels of antibodies to mycoplasma ovipneumoniae and m. arginini in lambs with chronic respiratory disease. sera were obtained from lambs in several flocks at various stages of the clinical disease and tested with sodium dodecyl sulfate (sds)-treated m. ovipneumoniae and m. arginini whole cells and a crude capsular extract of m. ovipneumoniae as the antigens. there were low levels of antibody to m. ovipneumoniae in flocks sa ... | 1999 | 9925209 |