Mycotoxins in Animal Feed: Understanding the Risk and How to Manage It

Mycotoxins are among the most underestimated threats in animal feed production. These toxic compounds, produced by molds growing on crops and feed ingredients, can silently reduce animal performance, weaken immunity, and cause significant economic losses — often before any visible signs appear.

Where do mycotoxins come from?

Mycotoxins develop both in the field and during storage. Warm, humid conditions encourage mold growth on grains such as corn, wheat, and soybean meal. Even after harvest, poor storage — high moisture, inadequate ventilation, temperature fluctuations — allows molds to keep producing toxins. By the time mold becomes visible, contamination is usually already severe.

The most common mycotoxins in feed include aflatoxins, deoxynivalenol (DON), zearalenone, ochratoxin, and fumonisins. Each affects animals differently: reduced feed intake, impaired growth, reproductive problems, liver damage, and suppressed immune response have all been documented across poultry, swine, ruminants, and aquaculture.

Why prevention beats treatment

Once mycotoxins are present in feed, they cannot be removed. Management therefore focuses on two strategies: preventing mold growth in the first place, and reducing the impact of toxins already present.

Good storage practice is the first line of defense — controlling moisture, temperature, and ventilation. Feed preservatives such as mold inhibitors, formulated with organic acids and propionates, help suppress mold growth during storage and transportation, protecting feed quality and extending shelf life.

For mycotoxins already present in raw materials, mycotoxin binders offer a practical solution. Multi-component binders work through adsorption and biological regulation, binding harmful mycotoxins in the digestive tract and reducing their absorption — supporting animal health and feed safety.

A practical program for feed manufacturers

An effective mycotoxin management program typically combines raw material screening and supplier qualification, controlled storage conditions, mold inhibitors to protect feed during storage and transport, mycotoxin binders as a nutritional safeguard in formulations, and regular testing of high-risk ingredients.

At PEK, we support feed manufacturers with compound mold inhibitors and multi-component mycotoxin binders designed for these applications, alongside the export documentation and technical support international customers need.

Managing mycotoxin risk is not a one-time fix but an ongoing part of quality feed production. The right combination of prevention and nutritional intervention helps protect both animal performance and your bottom line.