Photo of Pat Hatfield

Professor and Department Head
Department of Animal and Range Sciences
P. O. Box 172900
103 Animal BioScience Building
Montana State University
Bozeman, MT 59717-2900
Tel (406) 994-4850
Fax (406) 994-5589
Email: hatfield@montana.edu

Education

  • B.S.  Montana State University, Range Science, 1983
  • M.S.  New Mexico State University, Range Science, 1985
  • Ph.D.  University of Nebraska-Lincoln, Ruminant Nutrition, 1988

Classes

  • ANSC 222  Livestock in Sustainable Systems  ‹ Syllabus
  • ANSC 432  Sheep Management  ‹ Syllabus
  • ARNR 521  Advanced Ruminant Nutrition  ‹ Syllabus

Research Interests

  • Incorporating sheep into sustainable crop production systems for insect and weed pest control, and residue management.
  • Nutritional and management factors that improve sheep production efficiency.

Accomplishments and Interests

  • Interim Department Head, 2013 to 2014 and currently serving as Department Head. 
  • Committed to serving the land grant mission through the Department of Animal and Range Sciences research, teaching, and extension mission.
  • Investigate alternatives to traditional crop residue and fallow management using sheep to control weed and insect pests and enhance soil nutrient cycling.
  • Develop strategic nutritional intervention strategies for the late gestating ewe to minimize neonatal losses by improving lamb immune function and/or fetal and neonate energetic status.
  • Determine profitable management options that enhance quality and expand the availability of market ready lean lamb beyond current seasonal limits.
  • Develop and maintain online programs to aid students and producers in making sound nutrition and management decisions.
  • 77 peer reviewed publications, 1 book chapter, 31 invited papers, over 100 proceedings, abstract, and research reports, 33 popular press articles.
  • $8.3 million in competitive research, teaching, and USDA special grants.
  • 2011 MSU meritorious award
  • 2012 MSU meritorious award
  • 2013 Western Section American Society of Animal Science Distinguished Service Award
  • MSU Sheep Ration Program
  • Ewe Cost and Sheep Grazing Crop Residue Partial Budgeting Programs
  • Western Section American Society of Animal Science President, 2002-2003

Recent Publications

Peer-Reviewed (2007-present)

  • Ragen, D. L., E. E. Nix, W. A. Whitehurst, T. M. Novell, R. B. Sager, E. S. Read, B. S. Hauptman, C. G. Hooley, and P. G. Hatfield.   Effects of swath grazing pea-barley forage, bale-fed pea-barley forage, and straw stubble grazing on ewe body weight and number of lambs born.  In Press
  • Ragen, D. L., E. E. Nix, R. L. Endecott, P. G. Hatfield, M. K. Petersen, and J.G.P. Bowman.  2015. Individual mineral supplement intake by ewes swath grazing or confinement fed pea barley forage.  Animal and Feed Science and Technology 107-111.
  • Miller, Z. J. F.D. Menalled, U.M. Sainju, A.W. Lenssen, and P. G. Hatfield.  2015. Integrated sheep grazing into cereal-based crop rotations: spring wheat yields and weed communities.  Agron. J.  104-112:
  • Swartz, J. D., M. Lachman, K. Westveer, T. O’Neill, T. Geary, R. W. Kott, J.G. Beradinelli, P. G. Hatfield, J. M. Thomson, A. Roberts, and C.J. Yeoman. 2014.  Characterization of the vaginal microbiota of ewes and cows reveals a unique microbiota with low levels of lactobacilli and near-neutral pH.  Frontiers in Vet Sci.  1: 1-10.
  • Sainju, U. M., J. L. Barsotti, A. W. Lenssen, and P. G. Hatfield.  2014. Particulate and active soil nitrogen fractions are reduced by sheep grazing in dryland cropping systems. Nutr. Cycl. Agroecosyst. 99:79–93.
  • Ragen, D. L., R. R. Redden, A. N. Hafla, B. M. Nichols, J. L. Nichols, J. I. Keithly,T. J. McDonald, J. Uhrig, L. A. Cook, A. L. Kellom, and P. G. Hatfield.  2013. Technical Note: Effects of supplementation of expired human foodstuffs on intake and digestion of wethers fed a base diet of grass hay and alfalfa pellets.  Sheep & Goat Res. J.  28: 1- 5.
  • Barsotti, J., L., U. M. Sainju, A. W. Lenssen, C. Montagne, and P. G. Hatfield. 2013. Crop yields and soil organic matter responses to sheep grazing in the U.S. Northern Great Plains.   Soil & Till. Res.  134: 133-141
  • Lenssen, A. W., U. M. Sainju, and P.G. Hatfield.  2013.  Integrating sheep grazing into wheat-fallow systems: Crop yield and soil properties. Field Crop Res.  146: 75-85.
  • Barsotti, J.L., U.M. Sainju, A.W. Lenssen, C. Montagne, and P.G. Hatfield. 2013. Net greenhouse gas emissions affected by sheep grazing in dryland cropping systems. Soil Sci. Soc. of Am. J.77:1012-1025. (70)
  • Goosey, H. P., J. P. Hatfield, M. G. Rolston, G. D. Johnson, and P. G. Hatfield.  2013.  Hymenoptera parasitoid response to sheep grazing tillage, and herbicides in wheat-fallow rotations.   Journal of the Kansas Entomological Society.
  • Keithly, J. I., R. W. Kott, J. G. Berardinelli, S. Moreaux, and P. G. Hatfield. 2011.  Thermogenesis, blood metabolites and hormones, and growth of lambs born to ewes supplemented with algae-derived docosahexaenoic acid. J. Anim. Sci. 89:4305-4313.
  • Sainju, U. M., A. W. Lenssen, H. B. Goosey, E. Snyder, and P. G. Hatfield. 2011. Sheep grazing in a wheat-fallow system affects dryland soil properties and grain yield. Soil. Sci. Soc. Am. J. 75:1789-1798.
  • Moreaux, S J. J., J. L. Nichols, J.G. P. Bowman, and P. G. Hatfield. 2011. Psyllium lowers blood glucose and insulin concentrations in horses. J. Equine Vet. Sci. 31:160-165.
  • Lenssen, A. W.,  S. D. Cash, P. G. Hatfield, U. M. Sainju, W. R. Grey, S. L. Blodgett, H. B. Goosey, D. A. Griffith, and G. D. Johnson.  2010. Yield, quality, and water and nitrogen use of Durum and annual forages in two-year rotations. Agron. J. 102:1261- 1268.
  • Kott, R. W.,  L. M. M. Surber, A. V. Grove, P. G. Hatfield, J.A. Boles, C. R Flynn, and J. W. Bergman. 2010. Feedlot performance, carcass characteristics, and muscle CLA concentration of lambs fed diets supplemented with safflower seeds and vitamin E. Sheep & Goat Res. J. 25:16-22.
  • Sainju, U. M., A. W. Lenssen, H. B. Goosey, E. Snyder, and P. G. Hatfield. 2010. Dryland soil carbon and nitrogen influenced by sheep grazing in the wheat-fallow system. Agron. J. 102:1153-1561.
  • Redden, R. R., R. W. Kott, J. A. Boles, A. W. Layton, and P. G. Hatfield. 2010. Effects of late gestation supplementation of rumen undegradable protein, vitamin E, zinc, and chlortetracycline to ewes on indices of immune transfer and productivity. J. Anim. Sci. 88:1125-1134.
  • Redden, R. R., R. W. Kott, L. M. M. Surber, J. A. Boles, A. W. Layton, and P. G. Hatfield. 2009. Post-weaning management of lambs alters subsequent feedlot performance and tissue deposition. Sheep & Goat Res. J. 24:26-31.
  • Dafoe, J. M.,  R. W. Kott, B. F. Sowell, J. G. Berardinelli, K. C. Davis, and P. G. Hatfield. 2008. Effects of supplemental safflower and vitamin E during late gestation on lamb growth, serum metabolites, and thermogenesis. J. Anim. Sci. 2008 86:3194-3202. (60)
  • Hatfield, P. G., S. L. Blodgett, T. M. Spezzano, H. B. Goosey, A. W. Lenssen, R. W. Kott, and C. B. Marlow. 2007.  Incorporating sheep into dryland grain production systems:  I. Impact on over-wintering larva populations of wheat stem sawfly, Cephus cintus Norton (Hymenoptera: Cephidae). Small Rum. Res. 67:209-215.
  • Hatfield, P. G., A. W. Lenssen, T. M. Spezzano, S. L. Blodgett, H. B. Goosey, R. W. Kott, and C. B. Marlow. 2007. Incorporating sheep into dryland grain production systems:  II. Impact on changes in biomass and weed density. Small Rum. Res. 67:216-221.
  • Hatfield, P. G., H. B. Goosey, T. M. Spezzano, S. L. Blodgett, A. W. Lenssen, R. W. Kott, and C. B. Marlow. 2007. Incorporating sheep into dryland grain production systems:  III. Impact on changes in soil bulk density and soil nutrient profiles. Small Rum. Res. 67:222-231.

Invited Papers and Presentations


Dr. Patrick Hatfield Resume

 

Professor and Department Head

Department of Animal and Range Sciences

P. O. Box 172900

103 Animal BioScience Building

Montana State University

Bozeman, MT 59717-2900

Tel (406) 994-4850

Fax (406) 994-5589