World Grain - December 2020 - 56

FEED QUARTERLY

Protecting feed from
infectious pathogens
Preventing entry of the pathogen into the feed system is critical
by Allison Blomme

R

ents. This is of particular concern when considering the risk
of introducing foreign animal diseases, such as ASFV, which
has spread to several dozen countries worldwide in the past
two years. Therefore, the overall goal of feed mill biosecurity
is to prevent contamination of feed with infectious pathogens.
In addition to pathogen prevention, if a mill or ingredient does become contaminated it can be almost impossible
to control because most feed manufacturing facilities were
not hygienically designed. However, the next step would be
pathogen mitigation.
Pathogen mitigation could include strategies such as thermal processing or decontamination via chemical additives.

©Jonathan Weiss - stock.adobe.com

educing the risk of biological hazards in feed manufacturing facilities is an important part of the complete
biosecurity plan for livestock and poultry producers.
The type of feed manufactured is going to determine which
biological hazards are of greatest concern. Examples of hazards include pathogenic bacteria, such as Salmonella spp. and
Escherichia coli, and viruses, such as porcine epidemic virus (PEDV), African swine fever virus (ASFV), senecavirus
A (SVA), classical swine fever virus (CSFV), pseudorabies
virus (PRV) and foot and mouth disease (FMD).
Research in the past several years has demonstrated the
ability of these pathogens to survive in feed and feed ingredi-

56

December 2020 / World Grain / www.World-Grain.com



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World Grain - December 2020

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