The pathogen of the disease was identified as S.
pseudintermedius by mass spectrometery
To obtain the pathogenic microbes, the samples from six tissues of the
diseased raccoon dogs were inoculated onto the specific TSA medium in
Petri Dishes and the cultured bacterial strains were detected using a
mass spectrometer. The results in Table 1 showed that 8 species of
bacteria were identified from the pus samples of the suppurative
focuses, 5 species from Lymph nodes, 4 species from the lungs and liver,
2 species from the kidney. Among these isolated bacteria strains, two
strains including staphylococcus pseudintermedius (S.
pseudintermedius) and enterococcus faecalis (E.F) were common
and the isolated positive ratios of S. pseudintermedius in all
the tissues were the highest except in pus. So it was deduced that the
pathogen of the disease in raccoon dogs might be S.
pseudintermedius .