Abstract
The use of antibiotics is still intensive in animal production. Among the most used veterinary products in pig farming, tetracyclines can be highlighted. When used in excess, these substances can leave residues in food, which depending on the concentration pose a risk on consumers. Brazil, as one of the world’s largest producer and exporter of animal protein, must be attentive to the laws and ensure that their meat products are safe for human health. So, the concentration of veterinary residues eventually detected must be below the maximum residue limits (MRLs) stipulated by the regulatory agencies. To contribute with subsidies for decision making in pork safety to the annual monitoring program, performed by the Ministry of Agriculture and Livestock, this study aimed to evaluate the residues of tetracyclines in swine muscle from the federal inspection system, by validated and officially accepted analytical methodology (HPLC-UV). Any suspect results obtained from the HPLC-UV analysis can be confirmed immediately by injecting the samples onto a LC-MS/MS system. The results showed that all evaluated samples had concentrations of tetracycline residues below the MRL, and therefore, can be considered safe for human consumption.
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