New Lawsuit Alleges Horse Feed was Tainted

Two horse owners allege that feed manufacturer ADM knowingly sold and distributed horse-feed tainted with monensin.

No account yet? Register


Two horse owners have filed a class-action lawsuit in Illinois alleging that feed manufacturer Archer Daniels Midland, Co. (ADM), knowingly sold and distributed horse-feed tainted with monensin.

Monensin is an ionophore antibiotic sometimes included in ruminant, swine, and poultry feed that can be toxic to horses. Robert J. MacKay, BVSc, PhD, Dipl. ACVIM, professor of large animal medicine at the University of Florida, in Gainesville, said horses that ingest monensin can show clinical signs of ionophore poisoning including poor appetite, refusal of the grain product, diarrhea, weakness, rapid heart rate, labored breathing, exercise intolerance, depression, wobbly gait, colic, sweating, recumbency, and sudden death within three days of ingesting it. Horses that survive can exhibit long-term heart issues, resulting in diminished performance potential.

In a complaint filed July 19 in the U.S. District Court in Northern Illinois by the law firm of Bailey & Glasser LLP, horse owners Beth Berarov, of Michigan, and Annelisa Bindra, of South Carolina, allege their animals and those in their care died or sustained diminished heart function as a result of ingesting ADM-manufactured horse feed. The complaint also alleges that ADM was aware of the risks of distributing horse feed that could be tainted with monensin by cross-contamination from machines used to make both horse and cattle feeds.

“To cut costs, ADM manufactures horse feed products at facilities that also produce cattle feed containing monensin,” the complaint claimed

Create a free account with to view this content. is home to thousands of free articles about horse health care. In order to access some of our exclusive free content, you must be signed into

Start your free account today!

Already have an account?
and continue reading.


Written by:

Pat Raia is a veteran journalist who enjoys covering equine welfare, industry, and news. In her spare time, she enjoys riding her Tennessee Walking Horse, Sonny.

Related Articles

Stay on top of the most recent Horse Health news with

FREE weekly newsletters from

Sponsored Content

Weekly Poll

sponsored by:

Has your veterinarian used SAA testing for your horse(s)?
101 votes · 101 answers

Readers’ Most Popular

Sign In

Don’t have an account? Register for a FREE account here.

Need to update your account?

You need to be logged in to fill out this form

Create a free account with!