Abstract
In the semiarid region of the Brazilian state of Pernambuco, the feedstuffs for dairy cattle contain the mineral supplement of di-calcium phosphate (DCP). This study was carried out to determine the concentration of 210Pb in samples of di-calcium phosphate (DCP: CaHPO4) consumed by dairy cows in Pedra and Venturosa. 210Pb concentrations ranged from 17 to 256 Bq.kg−1, and although they are below the concentrations reported in Spain (up to 2260 Bq.kg−1), they also could be considered to represent a potential risk of chemical toxicity in dairy cows.
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