Keywords: STAR test, antibiotic residues, pork, chicken, antibiotic residue screening, swine tissues, poultry tissues, antibiotics, muscle tissue, liver tissue, kidney tissue, microbiology, food safety, food contamination
Screening for antibiotic residues in swine and poultry tissues using the STAR test
During a 12–month period, 138 tissue samples (muscle, liver, kidney) were screened for antibiotic residues (ARs), using the five–plate STAR test. Samples positive to one or more antibiotics were detected in 33.9% of the chicken samples and in 26% of the pig samples. All the chicken liver samples, 32.2% of the chicken muscle and 14% of the swine liver samples were positive to sulphonamides and β–lactams, 25% of the kidney, 11.1% of the liver and 4% of the muscle tissue of the swine samples and 1.7% of the chicken muscle samples were positive to tetracycline, 12.5% of the kidney and 4% of the muscle swine samples were positive to aminoglycosides and macrolides. No quinolone residues were detected in any samples. The use of a microbiological method such as the STAR–test, for ARs screening in food is an effective low cost scheme indicating potential contamination with ARs.