Influence of difloxacin-contaminated manure on microbial community structure and function in soils

Occurrence and fate of eleven classes of antibiotics in two typical wastewater treatment plants in South China

“…A previous study only reported doxycycline at a concentration of 1500 ng/g in the Swedish sludge samples (Lindberg et al, 2005). Such high concentrations in the sludge would have negative impacts on the environment if the sludge was applied on agricultural land, including effects soil microbial diversity, respiration and denitrification due to their antimicrobial activities (Chander et al, 2005;Kotzerke et al, 2011;Zielezny et al, 2006). The high concentrations of ofloxacin (1500-5800 ng/g) and norfloxacin (1820-5610 ng/g) in the present study are consistent with previous reports in other regions of China (Gao et al, 2012;Jia et al, 2012) and in Switzerland (Golet et al, 2003).…”

Excretion masses and environmental occurrence of antibiotics in typical swine and dairy cattle farms in China

“…Antibiotic residues in the environment can affect aquatic and terrestrial organisms (Costanzo et al, 2005;Kotzerke et al, 2011Kotzerke et al, , 2008Liu et al, 2009), alter microbial activity and community composition in groundwater (Underwood et al, 2011), and cause the development of antibiotic resistance by exerting the selective pressure on the microbial community (Pruden et al, 2006). However, most reported investigations focused more on tetracyclines, sulfonamides and fluoroquinolones in animal wastes in livestock farms due to available analytical methods, less on other classes of antibiotics such as bacitracin, leucomycin, lincomycin, florfenicol, ceftiofur and ionophores (Ben et al, 2008;Campagnolo et al, 2002;Chen et al, 2012aChen et al, , 2012bJacobsen and Halling-Sorensen, 2006;Karci and Balcioglu, 2009;Martínez-Carballo et al, 2007;Tagiri-Endo et al, 2009;Watanabe et al, 2010;Zhao et al, 2010).…”

Use patterns, excretion masses and contamination profiles of antibiotics in a typical swine farm, south China

“…8 Antibiotics have oen been found in animal manures at concentrations of up to tens of mg kg À1 , [9][10][11][12][13] in animal wastewater at concentrations up to tens of mg L À1 , [14][15][16] and in the environmental components affected by animal waste, including surface water, groundwater and agricultural land at several hundreds of ng L À1 . 11,[17][18][19] Antibiotic residues in the environment can affect aquatic and terrestrial organisms, [20][21][22][23] and lead to the development of antibiotic resistance by exerting selective pressure on the microbial community. 24,25 Therefore, the extensive use of antibiotics in the livestock industry has become an increasing concern due to the potential risks posed by their residues to the environment and human health.…”