Education
- Ph.D., University of Minnesota, 1974
- M.S., University of Minnesota, 1966
- B.S., North Dakota State University, 1962
Research Interests
Research focuses on the information needs of moderate sized dairy farms with particular emphasis on reduced-input management that includes transition to certified organic, intensive grazing, crossbreeding, outwintering and group rearing of calves in a systems approach.
Organic Dairy Research and Outreach at WCROC
Outreach
Programs
Grazing
systems and other reduced-input management techniques.
Memberships
- American Dairy Science Association
- American Society
of Animal Science
- Gamma Sigma Delta (Honorary)
- Land Stewardship
Project
- Midwest Forage Association
- Sustainable Farming Association
Publications (2004-2009)
- Refereed Articles -
Heins, B.J., L.B. Hansen, A.J. Seykora, A.R. Hazel, D.G. Johnson, and J.G. Linn. 2008. Crossbreds of Jersey x Holstein compared with pure Holsteins for body weight, body condition score, dry matter intake, and feed efficiency during the first one hundred fifty days of first lactation. J. Dairy Sci. 91: 3716-3722.
Heins, B.J., L.B. Hansen, A.J. Seykora, A.R. Hazel, J.G. Linn, D.G. Johnson, and W.P. Hansen. 2008.
Crossbreds of Jersey x Holstein compared to pure Holsteins for production, fertility and body and udder measurements during first lactation. J. Dairy Sci. Vol. 91:1270-1278.
Cuomo, G.J., M.V. Rudstrom, P.R. Peterson, D.G. Johnson, A. Singh, and C.C. Sheaffer. 2005. Initiation date and nitrogen rate for stockpiling smooth bromegrass in the North-Central USA. Agron. J. 97:1194-1201.
- E-Book Chapter -
Boody, G., P. Gowda, J. Westra, C. van Schaik, P. Welle, Bruce Vondracek, and D. Johnson. 2009. Multifunctional grass farming: Science and policy considerations. Soil and Water Conservation Soc. (published online). http://www.swcs.org/en/publications/farming_with_grass/
- Proceedings, Invited Papers, Research Reports -
Johnson, D.G. 2008. Organic dairy production at the University of Minnesota. Proc., 69th Minnesota Nutrition Conf., Owatonna, MN. Sep. 16-17. p. 33.
Johnson, D.G. 2007. Group feeding dairy calves. Proc., 68th Minnesota Nutrition Conf., Minneapolis, MN. Sep 18-19. p. 4.
Johnson, D.G., M.V. Rudstrom, R. Imdieke, E. Ballinger, and G.J. Cuomo. 2005. Farmer-driven research for developing models of successful low input dairy farms of small to medium size in the American Midwest. Proc., XX International Grassland Congress, Ireland. June 2005. p. 820.
Chester-Jones, H., M. Rudstrom, R. Imdieke, D. Johnson, M. Reese, and A. Singh. 2004. Comparative economic efficiencies and performance of dairy heifers in feedlot or pasture-based systems on a commercial custom heifer grower operation. Proc., Custom Heifer Raising IX Seminars, Green Bay and Fond du Lac, WI. Feb. 24-25.
- Abstracts -
Hazel, A.R., B.J. Heins, L.B. Hansen, A.J. Seykora, D.G. Johnson, J.G. Linn, and J.E. Romano. 2008. Montbeliarde-sired crossbred cows compared to pure Holstein cows for production, SCS, days open, and body condition score during their first two lactations. J. Dairy Sci. 91 (Suppl. 1):597 (Abstr. 762).
Heins, B.J., A.R. Hazel, L.B. Hansen, A.J. Seykora, D.G. Johnson, J.G. Linn, and J.E. Romano. 2008. Jersey × Holstein crossbred cows compared to pure Holstein cows for production, SCS, days open, body condition score, and udder measurements during the first three lactations. J. Dairy Sci. 91 (Suppl. 1):598 (Abstr. 763).
Johnson, D.G., C. Jergenson, and H. Chester-Jones. 2008. Group feeding dairy calves. J. Dairy Sci. 91 (Suppl. 1):464 (Abstr. T187).
Johnson, D.G., J.M. Moynihan, M.J. Forbord, and L. Paine. 2008. Organic dairy short course for ag professionals. J. Dairy Sci. 91 (Suppl. 1):23 (Abstr. T68).
Shane, E.M., M.I. Endres, D.G. Johnson, and J.K. Reneau. 2008. Bedding options for an alternative housing system for dairy cows. J. Dairy Sci. 91 (Suppl. 1):254 (Abstr. W180).
Shane, E.M., M.I. Endres, D.G. Johnson, and C.J. Rosen. 2008. Compost: A potential value-added product for dairy operations? J. Dairy Sci. 91 (Suppl. 1):252 (Abstr. W175).
Heins, B.J., L.B. Hansen, A.J. Seykora, A.R. Hazel, A.G. Linn, and D.G. Johnson. 2007. Crossbreds of Jersey/Holstein compared to pure Holsteins for production, fertility, and udder traits during first
lactation. J. Dairy Sci. 90 (Suppl. 1):420 (Abstr. 556).
Johnson, D.G., B.J. Heins, L.B. Hansen, A.J. Seykora, and J.G. Linn. 2007. Body weight and condition score of four dairy genetic groups in the summer or winter under low-input management. J. Dairy Sci. 90 (Suppl. 1):540 (Abstr. W243).
Heins, B.J., L.B. Hansen, A.J. Seykora, A.R. Hazel, J.G. Linn, D.G. Johnson, and W.P. Hansen. 2006.
Crossbreds of Jersey/Holstein compared to pure Holsteins for production, calving difficulty, stillbirths, and fertility. J. Dairy Sci. Vol. 89 (Suppl. 1):245 (Abstr. 251).
Seykora, A.J., B.J. Heins, L.B. Hansen, J.G. Linn, D.G. Johnson, and W.P. Hansen. 2004. Effect of Holstein females carrying Holstein versus Jersey sired calves on subsequent MEMilk, days open, and involuntary culling. J. Dairy Sci. 87 (Suppl. 1):282 (Abstr 527).
- Other -
Johnson, D.G. (content specialist). 2006. Dairy your way: A guide to management alternatives for the Upper Midwest. Minnesota Dept. of Ag., St. Paul.
|
