Assessment of stilbene residues in cattle through analytical control in Korca region

ALI LILO1*, KAPLLAN SULAJ2

1*Institute of Food Safety and Veterinary, Street “A. Moisiu” 82, Tirana, Albania

 2Faculty of Biotechnology and Food, Agricultural University of Tirana, Kamez, Tirana, Albania

*Corresponding author e-mail: liloali71@yahoo.com

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Abstract

The use of substances having hormonal action is banned in Albania. However, sometimes forbidden drugs may be added to feeds for illegal administration or treatment to cattle for promoting increased muscle development or increased water retention and thus obtain an economical benefit. Residues of these substances may remain in meat and may pose a real threat to the consumer either through exposure to the residues. On this context use of stilbens as hormonal dugs in cattle is used in illegal way. Evaluation of stilbens residues in live cattle and beef meat samples remains a common objective of food control in Albania. Assessment of stilbene residues (diethylstilbestrol, hexerol and dienstrol) is carried out from 2012 to 2013 in 94 urine samples collected from cattle in region of Korca. Analytical control is performed by ELISA test as commercial product following the use instructions. Study results showed the positive results for stilbens group of substances in 8, 5% (8/ 94) of urine samples. Detection limit of ELISA test is respectively 0.15ng/ml for diethylstilbestrol, 0.25ng/ml for hexerol and 0.5ng/ml for dienstrol residues. 6 out 8 positive urine samples for stilbens residues contained diethylstilbestrol confirming as well use of hormones in cattle treatment.

Keyword: stilbens, residues, cattle, Korca, Albania

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