Maintaining Biosecurity at the Feed Mill Raw materials are a significant source of contamination in feed processing facilities and, dependent on type, are associated with varying degrees of contamination. Assessing microbial risk at the intake point is crucial for preventing pathogen transmission within the feed production system. Notable pathogen, Salmonella, is commonly found in the guts of animals. It spreads through feces and animal products, entering soil via muck spreading and waterways then contaminating growing crops. Some crops used as feed ingredients pose higher risks with risk olevels varying by geography, climate and seasonality. Specifically, vegetable protein meals, animal Sample contamination occurring in 8000 sample survey, Anitox Global Feed Database protein meals, and processed cereal meals are identified as the highest-risk feed ingredients. Variable microbial loads contribute directly to the contamination and recontamination of feed.