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J Vet Sci. 2003 Dec; 4(3): 235-8 |
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Levels of lead in mineral salt commercial mixtures for beef cattle.
Wilmar Sachetin Marcal, Paulo Eduardo Pardo1, Marcos Roberto Lopes do Nascimento2, Evandro Brandalize Veras and Aleksey Machado Moreno |
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Veterinary Clinic, Department, Londrina State University, CP 6001, Londrina-Parana, CEP: 86051-970, Brazil. wilmar@uel.br
1Unoeste Presidente Prudente, Sao Paulo, Brazil.
2National Commission of Nuclear Energy, Pocos de Caldas, Minas Gerais, Brazil. |
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Lead concentrations was measured in samples of mineral mixtures used in beef cattle feed in the states of Sao Paulo, Parana, Mato Grosso and Mato Grosso do Sul, Brazil. Lead content was determined by inductively coupled plasma atomic emission spectrometry. Of the 60 analyzed samples, 21 had values greater than 30 ppm (range less 1.6 to 460 ppm), which is the maximum concentration recommended [3,14]. These findings show the necessity for careful industrial monitoring because some mineral mixtures contain sufficient lead to cause toxicity in animals.
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