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Year : 2014, Volume : 38, Issue : 2
First page : ( 75) Last page : ( 81)
Print ISSN : 0250-4758. Online ISSN : 0973-970X. Published online : 2014 June 1.
Article DOI : 10.5958/0973-970X.2014.01142.0

Pathomorphological studies of lung lesions in sheep

Kumar M. Asok1,*, Kumar R.2, Varshney K.C.2, Nair M.G.2, Lakkawar A.W.2, Sridhar B.G.2, Palanivelu M.1

1Division of Pathology, Indian Veterinary Research Institute, Izatnagar-243 122 (U.P)

2Department of Veterinary Pathology, Rajiv Gandhi Institute of Veterinary Education and Research, Puducherry

*Corresponding author; e-mail: drasokvet@gmail.com

Received:  28  December,  2013; Accepted:  03  May,  2014.

Abstract

Respiratory disorders are very common in sheep and often not easily detectable in the live animals until it is complicated. Thus examination of lungs at slaughter is the only way to understand pathology behind respiratory disorders and their prompt diagnosis. And thus this study was aimed at documenting various pathological conditions affecting the lungs of sheep. A total number of 903 sheep carcasses were examined, out of which, lung lesions were recorded in 203 cases (22.48 %). Pneumonia was recorded in 16.82% (152/903) cases, adenomatosis in 4.87% (44/903) cases and other lesions (atelectasis, emphysema and hemorrhages) in 0.78% (7/903) of cases. Based on duration of inflammation, involvement of tissue component and the principal constituent of the exudates, the lung lesions were further classified as acute bronchopneumonia (90/203 cases, 44.33%), sub-acute bronchopneumonia (28/203 cases, 13.79%), chronic bronchopneumonia (7/203 cases, 3.45%), acute interstitial pneumonia (16/203 cases, 7.88%), chronic interstitial pneumonia (6/203 cases, 2.96%), broncho-interstitial pneumonia (4/203 cases, 1.97%), embolic pneumonia (1/203 cases, 0.49%), adenomatosis (44/203 cases, 21.68%), atelectasis (3/203 cases, 1.48%), emphysema (1/203 cases, 0.49%) and hemorrhages (3/203 cases, 1.48%).

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Keywords

Adenomatosis, Atelectasis, Embolic, Emphysema, Pneumonia, Sheep.

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