The company recognizes that an ingredient in the feed may contain monensin. The feed was distributed in California and Arizona. According to the FDA, clinical signs of ionophore poisoning in horses vary depending on the dosage ingested, but can include poor appetite and feed refusal of the grain product, diarrhea, weakness, rapid heart rate, labored breathing, decreased exercise tolerance, depression, wobbly gait, colic, sweating, recumbency, and sudden death. The first clinical signs are often noted from 12 to 72 hours after ingesting a toxic dose and the clinical signs may linger up to about 8 days. Permanent cardiac damage is possible in horses which showed adverse effects, but then recovered.
Consumers are urged to examine any bags of Western Blend horse feed purchased in September, 2015 to check and see if they have Lot 5251. Any bags with this lot number may be returned to the stores where they were purchased for a full refund.