OCCURRENCE AND SURVIVABILITY OF YERSINIA IN PORK
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Date
1994
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COLLEGE OF VETERINARY AND ANIMAL SCIENCES Mannuthy - Thrissur
Abstract
Investigation was carried out to find out the the
presence and survivability of Yersinia in pork. One hundred
and seventy one samples were collected from 39 animals. Three
Isolates of Yersinia pceudotnberculosis were obtained using
Yersinia isolation agar (Himedia). Two of the isolates were
from the buccal cavity and tonsil of the same animal and the
third from the tonsil of another animal. Even when the
organism could not be isolated by direct plating, cold
enrichment enabled isolation of the organism from the same
sample.
The organism could be recovered from in^oculated and
stored (4°C) pork samples upto seven days. At -15»C storage,
the organism could be recovered upto 30 days by direct
plating. Direct plating failed to recover the organism on
45th day, but resuscitation technique was effective, which
underlined the importance of resuscitation for isolation of
the organism from frozen samples, on 60th day resuscitation
also failed to recover the organism.
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