To mitigate the environmental and health risk of antibiotics, the applications of antibiotics as animal growth promoters have been banned in EU countries (Alban et al., 2008) and the US (FDA, 2003
To mitigate the environmental and health risk of antibiotics, theapplications of antibiotics as animal growth promoters have beenbanned in EU countries (Alban et al., 2008) and the US (FDA,2003