ISSUE FOCUS FEED & ADDITIVE MAGAZINE May 2023 39 “As food safety and consumer awareness increases, feed hygiene has become an integral part of poultry and livestock operations – ensuring that the feed given to the animals is clean and safe. Raw materials and feed can be contaminated by pathogens that can lead to risks on health of animals and economic losses.” Sanitation is critical in poultry production to maintain the better health of the flock and prevent pathogenic organisms in human food. A well-managed sanitation program helps to reduce the incidence of disease and improve the overall production of meat and eggs. It comes with its own set of challenges from both growth of pathogenic bacteria on the farm and possible contamination in feed. As food safety and consumer awareness increases, feed hygiene has become an integral part of poultry and livestock operations – ensuring that the feed given to the animals is clean and safe. Raw materials and feed can be contaminated by pathogens that can lead to risks on health of animals and economic losses. Aside from that, the contamination in feed and ingredients is a potential risk of food safety for consumers, whereas Salmonella is the leading cause of gastrointestinal disease and is commonly found in poultry production. FEED CONTAMINATION There have been several studies of Salmonella association in feed and food. As early as 1976, McKenzie and Bains found significant correlation of Salmonella contamination in feed ingredients with broiler meats while Shirota et al., in 2001 found that there was correlation on frequency of serotypes of Salmonella in feed and eggs. In some studies, Salmonella isolates from feed were recovered in the slaughterhouse, meat processing plant and in raw processed meat like chicken nuggets and strips. The question is: why we are seeing microbial contamination in feed? Interestingly, a survey by Jones and Richardson in 2004 of three (3) feed mills in the US illustrate that Salmonella and Enterobacteria can be found in major feed ingredients like corn and soybean meal. Other feed ingredients like wheat and wheat middlings can have risk of Enterobacteria contamination. Wood et al., suggests that Enterobacteriaceae contamination can be an indicator of feed hygiene due to recognized association between the risk of Salmonella and degree of Enterobacteria contamination. In Europe, Regulation (EC) 183/2005 laying down requirements for feed hygiene aims to ensure customer protection throughout the food chain, starting from feed production up to feeding of food-producing animals. In 2018, China published its final version of Hygienic Standard for Feeds GB 13078, which includes total number of molds, bacteria and Salmonella as parameters for feed and THE UNDERLYING OF FOOD SAFETY: FEED HYGIENE Ermin Magtagnob Regional Technical and Sales Manager, APAC ADM Feed Additives and Ingredients
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