From ingestion of cantharidin which is found in blister beetles which may be in alfalfa.
Colic, salivation, shock, ulcers in mouth and GI mucosa.
Mineral oil. Specific lab tests are required to confirm diagnosis, so it is best to consult your vet who may prescribe fluid therapy and analgesics.
Observation of hay and other feed sources is always important.
Mostly in central and SW United States. P>
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