ABSTRACT
The.formation.and.occurrence.of.antibiotic-resistant.bacteria.(especially.pathogens). in.the.environment.are.of.significant.concern.to.society,.and.are.the.specific.focus.of. the.scientific.and.regulatory.communities..In.animal.agriculture.in.the.United.States. and.elsewhere,.antibiotics.are.provided.to.swine.for.therapeutic.reasons,.as.well.as.for. growth.promotion..Many.antibiotics.that.are.fed.to.or.injected.into.swine.may.pass. through.the.swine.unmetabolized.and,.therefore,.end.up.in.the.swine.manure.that.is. passed.into.the.treatment.system..Accordingly,.it.is.of.considerable.interest.that.an. economical.and.effective.means.of. treating. these.antibiotics.prevent.or.minimize. their.introduction.into.the.environment.during.their.field.application.(Figure.14.1).
