Research on viral transmission in feedstuffs yields new information

With research confirming that swine viruses can be transmitted through feed and feedstuffs, new studies are looking at how to prevent the spread of foreign animal diseases via these vehicles.
calendar icon 8 May 2019
clock icon 3 minute read

“Continued diligence on feedstuffs origin, the manufacturing processes, the shipping methods and ‘born on date’ is essential,” Liz Wagstrom, DVM, National Pork Producers Council chief veterinarian, said. “Feedstuffs manufactured, sealed, handled, and shipped under biosecure conditions produces an ingredient free of pathogens and reduces the risk of post-processing contamination, resulting in little to no risk to animal health.”

For example, vitamins and amino acids are typically shipped in sealed or secure containers. Anything produced under unknown conditions or unsealed can pose an animal health risk. Imported soybean meal and DDGS are often transported in non-sealed or non-secure containers. Knowing the origin of ingredients and the disease status of the region or country is essential.

“The feed industry is a committed partner in the effort to prevent foreign animal diseases from entering the US through imported feed ingredients,” said Leah Wilkinson, vice president for public policy and education for the American Feed Industry Association. “This additional information on holding times is helpful. We encourage dialogue with your feed ingredient or feed supplier to discover all of the measures that have been put in place to supply a safe product.”

Complete information on the research leading to the holding time calculation and the document, US Pork Industry Organization Provide ‘Options’ for Handling Imported Feed Ingredients, are available at swinehealth.org.

According to research using Senecavirus A (Seneca Valley virus), which is suggested to have the longest holding time of studied viruses, increasing holding times by an additional 30 percent would give an opportunity for 99.999 percent degradation of contaminating viruses
According to research using Senecavirus A (Seneca Valley virus), which is suggested to have the longest holding time of studied viruses, increasing holding times by an additional 30 percent would give an opportunity for 99.999 percent degradation of contaminating viruses
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