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Year : 2019  |  Volume : 8  |  Issue : 4  |  Page : 34-40

‘Antibiotic residue free broiler meat’; Prevalence of antibiotic residues in broiler meat and resistant bacteria in poultrylitter in sri lanka and awareness on antibiotic usage

1 Department of Animal Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka
2 Department of Soil Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka
3 Cargills Quality Foods, Maygaha Junction, Ganemulla Road, Ja-Ela, Sri Lanka

Correspondence Address:
T S Samarakone
Department of Animal Science, Faculty of Agriculture, University of Peradeniya, Peradeniya
Sri Lanka
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Source of Support: None, Conflict of Interest: None

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Antibiotics are broadly being used in poultry industry where the residual effect and antibiotic resistance have become major environmental impacts. In this study, a questionnaire survey was carried out with thirty three buyback farmers and employees of closed house farms from six broiler chicken producers in Sri Lanka. Eighty four whole birds were randomly selected at processing plants and tested for antibiotic residues in liver, kidney and breast, using the Six Plate Assay method (SPA). Litter samples from twenty five farms were cultured in Tryptic Soy Agar (TSA) with 3 treatments; T1: TSA+0 ppm Antibiotics, T2: TSA+10 ppm Enrofloxacine and T3: TSA+10 ppm Tetracycline. The survey revealed that the managers and supervisors of the closed house farms and the buyback farmers had a substantial knowledge on antibiotics and their adverse effect whereas the laborers of closed houses were not well aware. All the litter samples contained resistant bacterial populations where the Tetracycline resistant population was always higher (P<0.05) than that of Enrofloxacine. The broiler meat was free from detectable amounts of antibiotic residues. In conclusion, broiler chickens (meat, livers and kidneys) of the surveyed producers were free from antibiotic residues. However, broiler litter samples consisted of antibiotic resistant bacterial populations.

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