EFFECTS OF LIVESTOCK ANTIBIOTICS ON NITRIFICATION, DENITRIFICATION, AND MICROBIAL COMMUNITY COMPOSITON IN SOILS ALONG A TOPOGRAPHIC GRADIENT
Several types of antibiotics (roxarsone, virginiamycin, and bacitracin) are widely included in poultry feed to improve animal growth yields. Most of the antibiotics are excreted in manure which is subsequently applied to soils. One concern with this practice is that antibiotics may affect several mi...
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UKnowledge
2010
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| Online Access: | http://uknowledge.uky.edu/gradschool_theses/43 http://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1042&context=gradschool_theses |