Abstract
Three broiler processing plants, A, B, and C, were examined for Salmonella contamination, which was proved to be very intense in each of them. Employees' gloves, polyethylene or metal baskets for transportation and storage of products, vats for freezing, and working tables were positive for Salmonella.
This seemed to be the cause of high contamination of products.
Of 34 samples from products, 27 samples (79.4%) were positive for Salmonella contamination. S. thompson was isolated from facilities and products in plant A, S. thompson, S. typhimurium, and S. blockley were in plant B, and S. thompson and S. typhimurium were in plant C.S. thompson was killed when exposed to 10 ppm ofchlorine for 30 seconds. When a product was dipped in 50 ppm chlorine water for 3 minutes, the coli group and viable bacteria decreased in count by one order, but Salmonella did notbecome negative.
Of 744 broiler chickens examined, and found to be carriers, 11 chickens (1.5%) were positive for Salmonella, which was exclusively S. thompson
