Intoxicação por organofosforado em bovinos no Rio Grande do Sul

Pesquisa Veterinária Brasileira

José C Oliveira-filho²  Priscila M.s Carmo²  Felipe Pierezan²  Camila Tochetto²  Ricardo B Lucena²  Daniel R Rissi²  Claudio S.l Barros¹ 

[1] ,Universidade Federal de Santa Maria (UFSM) Centro de Ciências Rurais área de concentração em Patologia VeterináriaSanta Maria RS ,Brasil

关键词: Diseases of cattle;    toxicoses;    neuropathology;    organophosphate poisoning;    phorate poisoning;    Doenças de bovinos;    toxicoses;    neuropatologia;    intoxicação por organofosforado;    intoxicação por forato;   

DOI  :  10.1590/S0100-736X2010001000001

来源: SciELO

【 摘 要 】

An outbreak of organophosphate (ORF) poisoning in cattle occurred in the central-midwestern region of Rio Grande do Sul, Brazil. The water available for 49 cattle was contaminated with ORF and carbamate (CM). Twenty cows died after a clinical course that lasted for few hours. The classical clinical signs of over stimulation of the parasympathetic nervous system were observed, including motor incoordination, aggressiveness, drooling, muscle tremors and, on occasion, diarrhea. Significant morphological changes were not observed at necropsy or at histopathological examination. ORF e CM were detected by thin layer chromatography in tissue samples of two affected cattle and in a sample from the water consumed by the affected cattle. Additionally, two other water samples accessed by the affected cattle were positive for ORF. A quantitative analysis carried out by gas chromatography in the abomasum contents of an affected cow revealed 0.93µg/g of mancozebe (CM) and 0.07µg/g of phorate (ORF).

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