Date of this Version
Soni, Bhavneet Narrow Grass Hedge Effects on the Transport of Antimicrobials and Antimicrobial Resistance Genes Following Land Application of Swine Slurry. 2013, MS thesis, University of Nebraska, Lincoln, Nebraska.
The objective of this study was to determine the effects of manure amendment and narrow grass hedges on the fate and transport of antimicrobials and ARGs in runoff and in soil following the land application of swine manure slurry. Swine manure slurry was land applied to 0.75m wide by 4.0m long plots established on an Aksarben silty clay loam soil located in southeast Nebraska. The treatment factor manure amendment consisted of two levels: no manure application and manure application to meet the 3 year nitrogen (N) requirements for corn. The treatment factor of grass hedge was established for half of the test plots. Runoff water generated during three 30 min simulated rainfall events was analyzed for antimicrobials and antimicrobial resistance genes (ARGs). The grass hedge proved to be consistently effective in reducing antimicrobial tylosin in runoff (p=0.016), while the effect in reducing tylosin resistance gene erm(B) was not significant (p=0.2465).
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