Investigation and monitoring of tetracycline and degradation products in waters of trout farm

In this study, tetracycline and degradation products were determined in the basins of a trout farm and in the stream carrying the waters of trout farm. tetracycline (tc), 4-epitetracycline (etc), 4-epianhydrotetracycline (eatc) and anhydrotetracycline (atc) concentrations were determined under the detection limit in upstream of trout farm. the highest and lowest tetracycline concentrations detected in trout farm are 7.64±0.38 ppb and under detection limit, respectively. the highest and lowest 4-epitetracycline concentrations were 16.2±0.8 and 1.85±0.09 ppb, respectively while the highest and lowest 4-epianhydrotetracycline concentrations detected in trout farm were 25.8±1.3 and 6.12±0.30 ppb, respectively. the highest and lowest anhydrotetracycline concentrations detected in trout farm were 18.5±0.9 and 6.24±0.31 ppb, respectively. mean tetracycline, 4-epitetracycline, 4-epianhydrotetracycline and anhydrotetracycline concentrations were 3.52±0.17; 5.30±0.26; 14.4±0.7 and 9.64±0.48 ppb in downstream of trout farm. when upstream and downstream were compared in terms of tetracycline and degradation products it could be said that keban stream was affected as a result of activity of trout farm.