Detection of Coliforms and Salmonella in Feeds of Animal Farms Based on Epidemic Prevention
The feed is rich in carbohydrates, proteins, fats, inorganic salts, vitamins and other nutrients, and is a natural medium for microbial growth. In this paper, the detection and analysis of coliforms and salmonella in animal feed were studied. The detection of coliform bacteria in feed indicates that there is a possibility of contamination by intestinal pathogenic bacteria in the feed, and the potential threat of feed poisoning and epidemic diseases must be considered as a potential risk to animal health. The coliforms and salmonella of 18 beef cattle feed samples were detected and analyzed. Coliforms were detected in all feed samples. The number of coliforms in corn straw and wheat straw was higher, while the number of coliforms in granules, premix, cottonseed meal and rapeseed meal was lower. No Salmonella was detected in the feed samples. Therefore, the storage of feed and the production of processed feed should prevent the contamination of the feed by microorganisms, thus ensuring the hygiene and quality of the beef feed.