Peer-reviewed veterinary case report
Lead poisoning risk for dairy cows in the semi-arid region of Pernambuco, Brazil.
- Journal:
- Bulletin of environmental contamination and toxicology
- Year:
- 2011
- Authors:
- Silva, C M et al.
- Affiliation:
- Grupo de Radioecologia (RAE)-Departamento de Energia Nuclear · Brazil
Abstract
The lead (Pb) isotopes ²⁰⁶Pb and ²⁰⁸Pb are the final products of the radioactive decay of ²³⁸U and ²³²Th, respectively. Soils in the municipalities of Pedra and Venturosa, Brazil, present high levels of these radionuclides. We hypothesized that forage plants growing in these soils may take up high amounts of Pb and, consequently, intoxicate dairy cows. To test this, we quantified Pb concentrations in 23 forage samples from this region. Pb concentrations varied from 5 to 344 mg kg⁻¹. The highest values are one order of magnitude above the reported limit, therefore, indicating high risk of Pb contamination for dairy cows.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/21203746/