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Heavy metal residues in beef carcasses in Beni-Suef abattoir, Egypt

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Author(s): Fathy A. Khalafalla | Fatma H. Ali | Fredi Schwagele | Mariam A. Abd-El-Wahab

Journal: Veterinaria Italiana
ISSN 0505-401X

Volume: 47;
Issue: 3;
Start page: 351;
Date: 2011;
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Keywords: Arsenic | Beef | Cadmium | Egypt | Heavy metal | Kidney | Lead | Liver | Mercury | Nickel

ABSTRACT
A total of 300 samples were collected from cattle slaughtered in the Beni-Suef abattoir in Egypt. Samples included muscle, liver and kidney. Animals were randomly selected from the slaughter line. The age of the slaughtered cattle was less than three years (18-30 months). Samples were packed separately in plastic bags, identified and stored at -18°C until analysis which was performed at the Max Rubner Institute in Kulmbach, Germany, for the following heavy metals residues: lead, cadmium, mercury, arsenic, chromium and nickel in beef muscle, liver and kidney samples. The results revealed that the overall mean residual levels of lead were 8.77 µg/kg, 42.70 µg/kg and 109.42 µg/kg fresh weight in muscle, liver and kidney samples, respectively, while the mean residual levels of cadmium were 1.40 µg/kg, 14.16 µg/kg and 62.56 µg/kg fresh weight, respectively, and the mean arsenic residual levels were 5.06 µg/kg, 4.64 µg/kg and 14.92 µg/kg fresh weight, respectively. The mean residual levels of mercury were 3.91 µg/kg, 5.81 µg/kg and 10.14 µg/kg fresh weight, respectively, and the residual levels of chromium were 11.20 µg/kg, 21.85 µg/kg and 25.49 µg/kg fresh weight, respectively. Finally, the mean residual levels of nickel were 21.17 µg/kg, 14.59 µg/kg and 34.95 µg/kg fresh weight, respectively. The mean values of all heavy metals examined were low and did not exceed the permissible limits adopted by different organisations. Most heavy metals accumulated in higher concentrations in the kidney in comparison to the liver and muscle.

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