Scours, or diarrhea, can be a common issue among horses that causes dehydration and discomfort. It isn’t just a messy inconvenience. It’s a red flag that something’s gone awry in the gut, and in adult horses, it often signals hindgut dysfunction, particularly in the caecum and colon where fluid reabsorption normally occurs.
A study released in August this year in the Journal of Equine Veterinary Science into contaminants in horse feeds has found that “99 % (n = 107) of the samples tested positive for fungal metabolites, particularly Fusarium metabolites, unspecific metabolites, and pesticide residues."