Clinical Symptoms and PM Lesions
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Clinical signs
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Sometimes affected animal is found dead and sometimes the onset is slightly delayed.
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The animal quickly dies after manifesting weakness, dyspnoea, severe colic and terminal toxic convulsions.
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In some instances the onset of signs takes several hours and a range of clinical symptoms are seen.
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Behavioural abnormalities like restlessness and dullness initially, later signs of excitation, head pressing, abnormal posturing, jumping over unseen objects and maniacal behaviour.
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Nervous phenomena like initial hyperaesthesia, tremors, twitching and spasm of muscles beginning from eyelids and proceeding towards the tail are noticed.
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Autonomic manifestations include salivation, bradycardia, hypertension and severe colic.
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Gastrointestinal signs include rumen atony, bloat, teeth grinding, groaning, kicking at the abdomen and other evidence of colic. Terminally ill animals may regurgitate and aspirate the rumen contents.
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Locomotor disturbances like initial in-coordination and later staggering and stumbling prior to collapse.
Post mortem lesions
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Last modified: Wednesday, 30 November 2011, 5:58 AM