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Subject: Veterinary Pathology × Author: Hamza, Palekkodan × End date: 2008 × Start date: 2000 × Type: Thesis × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    Pathology of pneumo-enteric lesions in goats
    (Centre for Excellence in Pathology, College of Veterinary and Animal Sciences, Mannuthy, 2007) Hamza, Palekkodan; KAU; Vijayan, N
    The present study was undertaken to assess the mortality pattern, prevalence and pathology of pulmonary and intestinal tract disorders in goat. The result of the present investigation and evaluation of data from the records revealed a high incidence of pulmonary and intestinal tract disorders in goat. A total of 111 cases were subjected to detailed investigation which included 80 kids, 11 young ones and 20 adults. The samples collected were subjected to detailed gross and histopathological examination. The lesions observed were classified and recorded and the lesions were explicated giving possible etiopathogenesis. The study revealed eighty percentage incidence of pulmonary lesion. The pulmonary lesions observed were congestion, oedema, atelectasis, emphysema, pneumonia and pulmonary haemorrhage. The pneumonic lesions encountered were classified as suppurative pneumonia, fibrinous pneumonia, interstitial pneumonia, haemorrhagic pneumonia and aspiration pneumonia. The gross and histopathological features of each type of pneumonia have been described and possible etiological factors had been indicated. Escherichia coli, klebsiella sp. and Corynebacterium sp. were isolated from the pneumonic lungs. The lesions observed in bronchial lymph nodes were congestion, oedema, depletion of lymphocytes and necrotic changes in the cortical area. Bronchi and bronchioles revealed proliferative and inflammatory lesions suggesting a viral etiology with secondary bacterial infection or exposure to chronic air pollutant which act as irritant. Seventy two per cent of cases showed various pathological lesions in intestinal tract. The major lesions encountered in small intestine were congestion, degeneration and necrosis, catarrhal enteritis, subacute enteritis, haemorrhagic enteritis and ulceration. The parasitic lesions observed in intestinal tract were coccidiosis, pimply gut and cestodiasis. Lesions in the large intestine were congestion, degeneration and necrosis, catarrhal colitis and necrotic colitis. Mesenteric lymph node changes included oedema, congestion, degenerative and necrotic changes. Escherichia coli and Klebsiella sp. could be isolated from intestinal contents and the possible role of these organisms in the causation of enteritis had been discussed. An attempt was made to correlate the lesions in respiratory and intestinal tract. Even though there were no typical gross lesions suggesting PPR, the possibility cannot be ruled out without using modern techniques such as immuno histochemical studies.