Farmers are Encouraged to be Familiar with Mycotoxins

We hear a lot about mycotoxins in grain in the fall, but how does it affect the pigs we feed? Dr. Chris Hostetler, the National Pork Boards director of animal science, said mycotoxins are a classification of mold growing on feedstuffs.

“This time of year is harvest, so the new crop is coming in and each year there’s varying degrees of mycotoxin that is present in our crops”

Fungal infestation and consequent mycotoxin production can occur at various times between seed and feed. It’s influenced primarily by moisture level, temperature and availability of oxygen. In addition, grain that is damaged, immature, drought stricken or otherwise stressed is more susceptible to mold growth.

Production problems may arise if this grain is fed to pigs according to Dr. Hostetler; “Impacts growth, impacts of feed efficiency, impacts feed intake, impacts reproduction, immune suppression. So, there’s lots of things that mycotoxins can have an impact on.”

Dr. Hostetler stressed there might be intergenerational issues; “Zearalenone exposure to a sow may impact how her gilts perform reproductively. There is some indication that it could be transgenerational as well. So, these are underlying impacts to our productivity that we just, we’re getting more and more knowledgeable about all the time through research.”

Feed mills and crop farmers monitor and test for mycotoxins in grain. Producers should consult with their veterinarian if there are health concerns in their herd.

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