Control for Stilbene Residues in Cattle in the Korça Region
Abstract
In the period from 2013 to 2014, 160 random samples of urine from slaughtered and live cattle collected from different locations in Korca region in Albania were analyzed or the presence of the stilbene derivatives diethylstilbestrol (DES) and hexestrol (HEX). For detection of these substances is used ELISA test (MaxSignal) as fast screening method. Detection limit of ELISA test is respectively 0.15ng/ml for diethylstilbestrol and 0.25ng/ml for hexerol residues. From 160 urine samples of live cattle was detected positive with residues of diethylstilbestrol (DES) 6 samples or about 3.8 % of tested samples. The residues of hexestrol (HEX) were detected in 2 out 160 or 1.2% of total samples. The incidence of diethylstilbestrol (DES) in urine samples collected from cattle in slaughterhouses was identified in value 3.4% (2/58). There were not detected residues of hexestrol (HEX) in urine samples from slaughtered cattle.
Keywords: stilbene, residues, cattle, Korça.
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