Avaliação do comportamento de contaminações de Salmonella spp. em tanques de escaldagem em frigorífico de aves no sudoeste do Paraná

Abstract

Among the main foods that must feed humans, meats in general, especially chicken, are indispensable in the diet because they are highly protein and considered a major source of nutrients in food, but can suffer chemical changes, physical and biological processes that have a major impact on the quality of processed products throughout the steps of a broiler chicken. Intrinsic and extrinsic factors present risks for the establishment and proliferation of bacteria as well as Salmonella spp.which in some way impact the quality of the final product and induce DTA's (foodborne disease) to consumers. For better food security and increasing demands for healthy food by demanding customers, it is necessary to implement food safety systems that assist in the production of animal products and are required by human health agencies. The objective of this work is to identify the presence of contamination in the water of the tanks during the scald stage for a week in a refrigerator that has three tanks throughout the process in the Southwest of the State of Paraná in the period of August 2018. The scald tanks facilitate the opening of the pores of the skin of birds, looking for greater ease in the removal of feathers in the depluming, however, the real potential of these birds in the contamination of the birds that pass through this process is not known. Salmonella spp.can be found in the digestive tract of cut birds, and when they are not slaughtered, they do not have an adequate fasting time, large amount of bacteria in the tanks can proliferate through feathers dirty from animal waste of other birds from the transport process or involuntary expulsion of animal waste at the time of desensitization. The descriptive method was used to evaluate the results obtained. A total of462 samples of water from the tanks were collected, and at a minimum identified contamination of 12 different species. Tank 1 presented the highest number of water samples positive for Salmonella spp.among the three tanks analyzed, which presented higher microbiological load. The most prevalent species was S. Heidelberg, with 37% of positive samples. It was possible to conclude that the hours of 05:30am and 1:00pm were the ones that presented the highest contamination of the samples, and started a new water exchange of the tanks 1 of each production line at these times.