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Detection of Chloramphenicol Residues in Pigs with Different Agar Diffusion Methods
Undersökning av kloramfenikolrester hos gris med olika agardiffusionsmetoder.
Acta Veterinaria Scandinavica volume 25, pages 352–364 (1984)
Abstract
Various tissues and body fluids of pigs given chloramphenicol intramuscularly at a dose level of 20 mg/kg 1.5, 2.5 and 18 h before slaughter were examined for drug residues with different agar diffusion methods. Zones of inhibition were observed in bile, kidney, muscle, serum and urine samples 1.5 h after drug administration. After 19 h, residues were found only in the urine. The treatment of the bile, kidney, serum and urine samples with β-glucuronidase lowered the detection threshold of the agar diffusion methods for chloramphenicol. In addition, β-glucuronidase can be used for the identification of chloramphenicol residues. Chloramphenicol yielded the greatest zones of inhibition in kidney medulla and especially in urine with and without β-glucuronidase. 18 h after drug administration residues were found with β-glucuronidase treatment only in these samples. Urine and kidney medulla proved the best samples in the residue analysis of chloramphenicol at meat inspection.
Sammanfattning
Olika vävnader och kroppsvåtskor hos gris, som hade givits kloramfenikol (20 mg/kg) intramuskulärt 1.5, 2.5 och 18 h före slakt, undersöktes med olika agardiffusionsmetoder för läkemedelsrester. Hämningszoner observerades i galla, njure, muskel samt serum prov 1.5 h efter administrationen. Rester kunde efter 18 h konstateras enbart från urinprov. Då gallan, njurarna, serumet och urinproven behandlades med β-glucuronidas, minskade den kloramfenikolnivå, som künde iakttagas med agardiffusionsmetoden. Dessutom kan β-glucuronidas användas för identification av kloramfenikolrester. Njurmedulla och speciellt urin gav de största hämningszonerna med och utan tilskott av β-glucuronidas. 18 h efter medicin administrationen kunde rester iaktagas enbart ur dessa prov behandlades med β-glucuronidas. Urin och njurmedulla befanns vara de bästa proven för analys av kloramfenikolrester vid köttbesiktning.
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Korkeala, H., Mäki-Petäys, O. Detection of Chloramphenicol Residues in Pigs with Different Agar Diffusion Methods. Acta Vet Scand 25, 352–364 (1984). https://doi.org/10.1186/BF03547250
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DOI: https://doi.org/10.1186/BF03547250