October 31, 2019


US study tests effects of fumonisin in corn used in swine feed


The study by researchers at Kansas State University observed how fumonisin-infected corn affects nursery swine's growth performance.


Fumonisin is a type of mycotoxin (a naturally-occurring toxic chemical) that usually develops in corn after a wet harvest comes after a drought period.


The study, which examined 20 to 60-pound (~9 to 27kg) nursery swine, found that the nursery swine decreased in performance if they consumed 30 parts per million (ppm) of fumonisin-infected corn or more.


Nursery swine can safely consume up to 20 ppm of fumonisin-infected corn for up to five weeks without affecting its performance. There are no effects on nursery swine if they consume up to 10 ppm of fumonisin-infected corn.


The study had also shown that corn with high levels of fumonisin needs to be diluted, citing the need for producers to contact nutritionists for guidance to the use of products that can mitigate mycotoxins.


Kansas and the Midwest reported high levels of fumonisin-infected corn last year. The start of the growing season in 2018 saw hot and dry conditions, which was later followed by heavy rains.


Pork from swine that consume fumonisin-infected corn are safe to eat for humans. Fumonisin only affects nursery swine's performance and health.


-    Kansas State University