PESQUISA VETERINÁRIA BRASILEIRA

Abstract in English:

ABSTRACT.- Rivero R., Matto C., Adrien M.L. & Rampoldi O. 2011. [Organochlorine (endosulfan) poisoning in cattle in Uruguay.] Intoxicação por organoclorados (endosulfan) em bovinos no Uruguai. Pesquisa Veterinária Brasileira 31(4):277-280. Laboratorio Regional Noroeste “Dr. Miguel C. Rubino”, Dirección de Laboratorios Veterinarios do Ministerio de Ganaderia, Agricultura y Pesca, CC.57037, Paysandú, CP.60.000, Uruguay. E-mail: rrivero@mgap.gub.uy An outbreak of organochlorine (endosulfan) poisoning in cattle registered in April 2009 on a farm for calf rearing is reported. Cattle showed neurological symptoms one day after an accidental discharge of a crop duster releasing 700 liter of pesticide with a water-based solution of endosulfan and cypermethrin had occurred. The morbidity was 7.7% and the mortality 6.0%. The symptoms in the cattle were sialorrhea, ataxia, hypersensitivity, muscle twitching, pedaling, teeth grinding, excitability, convulsions, recumbency and death. At necropsy of the animals and histopathological examination non significant lesions were found. There was also a significant mortality of fish in the gorge of the affected paddock. Through gas chromatography the presence of endosulfan and/or its metabolite above references levels was identified in samples of fat, liver and rumen contents of affected animals, as well as in fish and water collected, what confirmed the organochlorine poisoning.

• Endosulfan organochlorine poisoning intoxicação por organoclorados

Abstract in Portuguese:

RESUMO.- Rivero R., Matto C., Adrien M.L. & Rampoldi O. 2011. [Organochlorine (endosulfan) poisoning in cattle in Uruguay.] Intoxicação por organoclorados (endosulfan) em bovinos no Uruguai. Pesquisa Veterinária Brasileira 31(4):277-280. Laboratorio Regional Noroeste “Dr. Miguel C. Rubino”, Dirección de Laboratorios Veterinarios do Ministerio de Ganaderia, Agricultura y Pesca, CC.57037, Paysandú, CP.60.000, Uruguay. E-mail: rrivero@mgap.gub.uy Descreve-se um surto de intoxicação por organoclorados (Endosulfan) em bovinos ocorrido em abril de 2009, em uma propriedade de recria de bezerros localizada no departamento de Paisandú, Uruguai. O quadro clínico foi observado um dia depois de haver ocorrido na propriedade, uma descarga acidental de 700 litros de um pesticida formulado em solução a base de água mais endosulfan e cipermetrina por dano em um avião pulverizador. A morbidade foi de 7,7% e mortalidade de 6,0%. Os sinais clínicos se caracterizaram por salivação, ataxia, hipersensibilidade, tremores musculares, movimentos de pedalagem, ranger de dentes, excitação, convulsão, decúbito e morte. Na necropsia dos animais e ao exame histopatológico não se observaram lesões. Na mesma propriedade foi observada, também, mortalidade de peixes em um arroio próximo ao local onde o pesticida foi derramado. Amostras de gordura, fígado e conteúdo ruminal de bovinos mortos e de peixes foram analisadas pela técnica de cromatografia gasosa sendo detectada a presença de endosulfan e/ou seus metabólitos em quantidades de 0,16-3,7mg/kg, superiores aos níveis de referência aceitáveis de 0,05-0,2mg/kg, confirmando-se a ocorrência da intoxicação por este organoclorado.

Abstract in English:

Amaral L.A, Isa H., Dias L.T., Rossi Jr. O.D. & Nader Filho A. 2004. [Efficiency of the disinfection of teatcups and teats during mechanic milking of dairy cows.] Avaliação da eficiência da desinfecção de teteiras e dos tetos no processo de ordenha mecânica de vacas. Pesquisa Veterinária Brasileira 24(4):173-177. FCAV, Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal, SP 14884-900, Brazil. E-mail: lamaral@fcav.unesp.br The purpose of this investigation was to evaluate the efficiency of the teatcup disinfection process by immersion into a disinfectant solution, using sodium hypochlorite and organic chlorine, to verify the residual chlorine dynamics in both solutions during milking time, and to evaluate three premilking disinfection methods: immersion, spray and sponge. Total coliforms, fecal coliforms, Staphylococcus sp and mesophilic microorganism counting was done. The results showed that the disinfecting clusters between individual cows, using immersion in sodium hypochlorite or organic chlorine solutions with a concentration of 150ppm, was not efficient for the rubber teatcup microorganism reduction. The organic chlorine solution showed more stability. Teatcup is a potential microorganism vehicle for milk and the mammary gland. Disinfection of the teats reduced the number of the microorganisms studied in all treatments, showing to be a simple method that can be used to reduce the microrganism transmission risks during milking and to increase the microbial quality of the milk.

• Disinfection milking chlorine teatcups pre-dipping.

Abstract in Portuguese:

Amaral L.A, Isa H., Dias L.T., Rossi Jr. O.D. & Nader Filho A. 2004. [Efficiency of the disinfection of teatcups and teats during mechanic milking of dairy cows.] Avaliação da eficiência da desinfecção de teteiras e dos tetos no processo de ordenha mecânica de vacas. Pesquisa Veterinária Brasileira 24(4):173-177. FCAV, Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal, SP 14884-900, Brazil. E-mail: lamaral@fcav.unesp.br The purpose of this investigation was to evaluate the efficiency of the teatcup disinfection process by immersion into a disinfectant solution, using sodium hypochlorite and organic chlorine, to verify the residual chlorine dynamics in both solutions during milking time, and to evaluate three premilking disinfection methods: immersion, spray and sponge. Total coliforms, fecal coliforms, Staphylococcus sp and mesophilic microorganism counting was done. The results showed that the disinfecting clusters between individual cows, using immersion in sodium hypochlorite or organic chlorine solutions with a concentration of 150ppm, was not efficient for the rubber teatcup microorganism reduction. The organic chlorine solution showed more stability. Teatcup is a potential microorganism vehicle for milk and the mammary gland. Disinfection of the teats reduced the number of the microorganisms studied in all treatments, showing to be a simple method that can be used to reduce the microrganism transmission risks during milking and to increase the microbial quality of the milk.