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Pesquisa Veterinária Brasileira

Print version ISSN 0100-736X


FAGNANI, Rafael et al. Organophosphorus and carbamates residues in milk and feedstuff supplied to dairy cattle. Pesq. Vet. Bras. [online]. 2011, vol.31, n.7, pp.598-602. ISSN 0100-736X.

Considering acute and chronic toxicity effects on human and animal health caused by pesticide residues in food, this study aimed to analyze organophosphorate (OP) and carbamate (CB) in feedstuff and water destined for dairy cattle, as well as in the milk produced by these animals, through gas chromatography (GC). In the Agreste region of Pernambuco, Brazil, 30 raw milk samples and all components of the animals' diet were collected from several farms. Out of the 30 milk of milk analyzed, six (20%) were contaminated with OP, five (16.7%) with CB, and one sample with both pesticides. From 48 analyzed feed samples, 15 (31.25%) were contaminated with residues of OP, six (12.50%) with CB, and one sample was contaminated with both pesticides. Out of 16 water samples analyzed, six (37.50%) were contaminated with OP residues, but non with CB. In four dairy farms the pesticides detected in milk were compatible with the active principles found in water and/or foodstuff, suggesting them to be the source of contamination.

Keywords : Pesticides; gas chromatography; Brazil; Pernambuco; contamination.

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