Why are additives typically added to horse feed?

Additives are often included in horse feed primarily for their beneficial effects on the animal's health and nutrition. In the case of controlling gastrointestinal worm infestations, certain additives can include de-worming agents or substances that create an unfavorable environment for parasites in the gut. This proactive approach helps to manage worm burdens effectively, thereby promoting better overall health, growth, and productivity in horses.

While other reasons for adding ingredients to horse feed could be valid, such as enhancing flavor or improving palatability—which refers more to how appetizing the feed is to encourage consumption—the effective management of parasites is critical in maintaining the health and well-being of horses. Additionally, increasing fat content is a specific nutritional modification that serves different purposes, such as energy enhancement rather than directly addressing health issues like gastrointestinal worms. Therefore, the emphasis on controlling parasites with additives highlights an essential aspect of responsible horse husbandry.