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KMID : 1023520130360040311
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Korean Journal of Veterinary Service
2013 Volume.36 No. 4 p.311 ~ p.320
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Comparison of detecting methods and the relationship between tissue and blood for enrofloxacin and metabolic ciprofloxacin residues in broiler chickens
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Sung Myung-Suk
Kim Mi-Suk
Seo Hee-Jin
Bae Dong-Rok
Hwang Ji-Young
Kim Soon-Tae
Jang Seong-Jun
Yun Mun-Jo
Cho Jong-Suk
Park Hong-Je
Hong Sung-Hee
Kim Gyung-Dong
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Abstract
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The purpose of this study was to evaluate detecting methods and the relationship between tissues and blood for enrofloxacin and metabolic ciprofloxacin residues in broiler chickens. Two groups of broiler chickens were administrated via the drinking water with 50 μg/mL and 100 μg/mL of enrofloxacin for 5 days, respectively. The concentration of enrofloxacin and metabolic ciprofloxacin in tissues (muscle and kidney) and blood were measured during administration period (for 5 days) and withdrawal period (for 12 days) by high performance liquid chromatography (HPLC) method. Also, all samples were conducted for screening of residues by microbial method using E. coli for quinolone detection and immuno- chromatography method using Smart kit. The relationship between tissues (muscle and kidney) and blood for enrofloxacin and metabolic ciprofloxacin residues in broiler chickens was followed : The levels of enrofloxacin and metabolic ciprofloxacin residues in muscle and kidney were higher 2.9∼3.2 folds, 3.6∼3.8 folds more than the residues levels in blood, respectively. These results support we can predict the residues in muscle and kidney from the residues in blood. In comparison of detecting methods for antibiotic residues, microbial method using E. coli for quinolone detection and immuno-chromatography method using Smart kit could detect positive reaction at similar or lower concentration than violative concentration of enrofloxacin and metabolic ciprofloxacin in chicken tissues. These results support what two screening methods are useful for screening of quinolone detection in chickens.
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KEYWORD
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Antibiotic residues, Enrofloxacin, Tissue, muscle and kidney, Blood
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