| analysis and characterization of mycoplasma gallisepticum isolates from pennsylvania. | because mycoplasma gallisepticum f strain vaccine can be pathogenic in chickens and is pathogenic in turkeys, we monitored the spread of mg f strain into unvaccinated flocks by screening field and experimental isolates. thirteen mg isolates obtained from various sources in pennsylvania were screened using several techniques capable of differentiating between mg strains. dna restriction enzyme analysis (rea), sodium dodecyl sulfate-polyacrylamide gel electrophoresis (sds-page) protein profiles, n ... | 1994 | 7832700 |