The abattoir study of the Mycobacterium avian paratuberculosis infection in buffalo in Ahwaz
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Abstract:
John's disease which is caused by Mycobacterium avium paratuberculosis is a chronic, infectious, granulomatous and incurable enteritis of ruminants. The most important clinical signs of the disease are diarrhea and emaciation. In order to investigate the prevalence of Mycobacterium paratuberculosis infection among slaughtered buffaloes in ahwaz abattoir. samples were taken from 100 buffaloes. Befor slaughter sex, body condition and age (by use dental formula) were assessed and after that, samples were taken from ileocecal valve, rectum mucosa, ileocecal lymph node and feces. All samples were stained by zile- nielson technique and examined by light microscope. At first, ilececal valve samples were examined and other samples were examined whereas ilececal valve sample was positive. Based on examiniation of ilececal vawe sample, out of 100 buffaloes 3 (3%) were positive. Clumps of mycobacterium paratuberculosis were seen in smears of ileocecal vave sample but in other parts (rectum mucosa, ileocecal lymph node and feces) werenot seen. All positive buffaloes had normal feces and body condition, therefore they suffered from subclinical form of john's disease.
Language:
Persian
Published:
Iranian Journal of Veterinary Clinical Sciences, Volume:2 Issue: 1, 2008
Page:
55
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