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Subject: Veterinary Pathology × Author: SATHISH SANGMESHWAR × End date: 2019 × Start date: 2017 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    SATHISH SANGMESHWAR
    (KVAFSU,BIDAR, 2019) SATHISH SANGMESHWAR
    Disorders of lymphoid organs are often common in sheep and are not detected easily until related clinical signs are observed. These are important in understanding the disease process but are generally neglected during routine post mortem examination. Thus examination of lymphoid organs at necropsy/slaughter is the only way to understand pathology behind disorders of lymphoid organs. The present study was therefore aimed at documenting various pathological conditions affecting the lymphoid organs of sheep. A total of 110 sheep carcasses were examined, lymph node lesions were recorded in all cases where splenic lesions in 76 (69.09 %) cases. Prominent clinical signs observed were related to different systems such as digestive, respiratory and urogenital. Lymph nodes pertaining to respective systems along with spleen were examined in all cases. Based on gross and histopathological changes, the lymph node lesions were classified as congestion in 56 (50.09 %) cases, oedema in 15 (13.63 %) cases, reactive hyperplasia in 27 (24.54 %) cases, lymphoid depletion in five (4.54 %), liquefaction in seven (6.36 %) cases caseation in five (4.54 %) cases, chronic lymphadenitis in nine (8.18 %) cases, discrete eosinophilic accumulation in eight (7.27 %) cases, hemosiderosis in five (4.54 %) cases, necrotic debris accumulation and anthracosis in four (3.63 %) cases. Likewise splenic lesions were classified as congestion in 32 (29.09 %) cases, oedema in 20 (18.18 %) cases, haemorrhages in 11 (10.00 %) cases, hyperplasia in eight (7.27 %) cases, hemosiderosis in seven (6.36 %) and amyloidosis in four (3.364 %) cases. Thus the findings of the present study concluded that disorders of lymphoid organs are important with respect to sheep health and proper attention is needed to mitigate the losses due to the disorders of lymphoid organs and associated mortality by taking proper managemental care.