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The University of Tennessee University of Tennessee UT Institute of Agriculture

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Shawn
Shawn A. Hawkins   Ph.D., P.E.
Assistant Professor

Office: 310 OFC
Phone: 974-7722
Email: shawkins@utk.edu
    Specialty: Animal Waste Management

    Area(s) of Interest:
    • Animal waste pathogen and nutrient fate and transport
    • Pathogen source tracking using molecular markers
    • Molecular measures of microbial nutrient transformation rates
    Educational & Research Programs:
    • Accurate on-farm measurements of animal waste and biosolids land application rates
    • Design of livestock watering systems
    • Environmental regulations for animal feeding operations

Recent selected publications

Hawkins, S. A., Alice C. Layton, Steven Ripp, Daniel Williams, and Gary S. Sayler.  2008.  Genome sequence of the Bacteroides fragilis phage ATCC 51477-B1.  Virology Journal, 5:97.

Hawkins, S. A., Robinson, K. G., Layton, A. C., and Sayler, G. S..  2008.  Response of Nitrobacter spp. ribosomal gene and transcript abundance following nitrite starvation and exposure to mechanistically distinct inhibitors.  Environmental Science and Technology, 42(3), 901-907.

Hawkins, S. A., Robinson, K. G., Layton, A. C., and Sayler, G. S..  2006.  A comparison of ribosomal gene and transcript abundance during high and low nitrite oxidizing activity using a newly developed real time PCR detection system targeting the Nitrobacter spp. 16S-23S intergenic spacer region.  Environmental Engineering Science, 23(3):521-532.

Recent bulletins/reports

Hawkins, S. A.  2008.  Efficient use of biosolids on beef pastures and hay fields.  Proceedings of the 2008 University of Tennessee Beef & Forage Field Day.

Hawkins, S. A., and F. R. Walker.  2008.  Horse manure management.  University of Tennessee Extension Master Horse Owner Manual.

Hawkins, S. A.  2007.  Funding available to address livestock drought stress.  UTIA Web Packet News and Information for Use by Agents, September 4, 2007.

Recent grants/contracts

Hawkins, S. A., J. Lee, A. M. Johnson, F. R. Walker.  Prioritizing pollutant causes and sources using CADDIS and Arc-SWAT for biologically impaired stream.  Tennessee Department of Environment and Conservation.

Hawkins, S. A., Douglas Hamilton.  Alternative uses for animal manure.  Texas A&M University.

Walker, F. R., S. A. Hawkins.  Oostanaula Creek Restoration Project.  Tennessee Department of Agriculture.

Johnson, A. M., S. A. Hawkins, F. R. Walker.  Phosphorus Speciation and Availability of Land-Applied Waste Materials and Effects on In-stream Nutr.  TDEC.

Hawkins, S. A., F. R. Walker.  Cooperatively Available Equipment to Accurately Quantify Manure Application Rates.  University of Tennessee Extension.

Hawkins, S. A., John Teague.  Solar Powered Livestock Watering Demonstration System.  University of Tennessee Extension.

Hawkins, S. A., A. M. Johnson, F. R. Walker.  Stand-alone edge of field automatic storm water sample collection and monitoring ... .  UT Agricultural Experiment Station.

Steven Ripp, S. A. Hawkins, Alice Layton.  Unbiased tagging, isolation, and genomic characterization of bacteriophage transduction events in wa.  USDA.

Walker, F. R., S. A. Hawkins.  Pond Creek Protection and Water Quality Improvement Project.  Tennessee Department of Agriculture.