Capture myopathy in Elk in Alberta, Canada: a report of three cases |
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Authors: | RJ Lewis GA Chalmers MW Barrett R Bhatnagar |
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Abstract: | Acute capture myopathy was diagnosed in 3 elk (Cervus canadensis). In 2 of the elk, hindlimb lameness developed within 10 days of capture. Clinical signs were not observed in the third elk, which was found dead 7 days after its capture. Elks 1 and 2 were euthanatized and all 3 animals were necropsied. In elks 1 and 2, rupture of the semi-membranosus muscle was associated with massive hemorrhage and swelling. Microscopic findings included hemorrhage, edema, myofibril fragmentation, and evidence of attempted muscular regeneration. In elk 3, several of the large muscles of the hindlimbs as well as the biceps brachii muscles of the forelimbs appeared pale, dry, and friable. Except for lack of hemorrhage and edema, microscopic findings in this elk were similar to those of elks 1 and 2. |
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