Education
- Ph.D.,
University of Illinois, 1982
- M.S., University of Illinois, 1979
- B.S., University of California, 1976
Research
Interests
Assigned responsibility is to determine factors that limit forage
utilization by dairy cows and develop technologies to improve
the quality of forages. Research is being conducted to understand
how the anatomical tissue organization and structure of forages
results in the often poor digestibility of the cell wall fraction
of forages, and to integrate this information with more traditional
measures of forage chemical composition to develop a more complete
conceptual model of forage cell wall digestion and its limitations.
Working with plant breeders and biotechnologists, genetic manipulation
of specific cell wall structures are being tested for improving
overall forage digestion and utilization.
Affiliated Centers/Organizations/Appointments
- USDA-ARS Plant Science Research Unit, St. Paul
- USDA-ARS US Dairy Forage Research Center, Madison, WI
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul
Awards
- OECD Travel Fellowship to conduct collaborative research at CSIRO, Livestock Industries, Perth, Australia, 2001-02
- American Dairy Science Pioneer Hi-Bred International Forage Award, 1997
- OECD Travel Fellowship to conduct collaborative research at the Swedish Agricultural University, Uppsala, 1987
Links
Publications (2004-2008)
- Refereed Articles -
Casler, M.D., H.G. Jung, and W.K. Coblentz. 2008. Selection for lignin and etherified ferulates in three perennial grasses. Crop Sci. 48: 424-433.
Lamb, J.F.S., H.G. Jung, C.C. Sheaffer, and D.A. Samac. 2007. Alfalfa leaf protein and stem cell wall polysaccharide yields under hay and biomass management systems. Crop Sci. 47: 1407-1415.
Raeth-Knight, M.L., J.G. Linn, and H.G. Jung. 2007. Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows. J. Dairy Sci. 90: 1802-1809.
Russelle, M.P., R.V. Morey, J.M. Baker, P.M. Porter, and H.G. Jung. 2007. Comment on "Carbon-negative biofuels from low-input high-diversity grassland biomass". Science 316: www.sciencemag.org/cgi/content/full/316/5831/1567b.
Boateng, A.A., H.G. Jung, and P.R. Adler. 2006. Pyrolysis of energy crops including alfalfa stems, reed canarygrass, and eastern gamagrass. Fuel 85: 2450-2457.
Dien, B.S., H.G. Jung, K.P. Vogel, M.D. Casler, J.F.S. Lamb, L. Iten, R.B. Mitchell, and G. Sarath. 2006. Chemical composition and response to dilute-acid pretreatment and enzymatic saccharification of alfalfa, reed canarygrass, and switchgrass. Biomass Bioenergy 30: 880-891.
Jung, H.G. and M.D. Casler. 2006. Maize stem tissues: Cell wall concentration and composition during development. Crop Sci. 46: 1793-1800.
Jung, H.G. and M.D. Casler. 2006. Maize stem tissues: Impact of development on cell wall degradability. Crop Sci. 46: 1801-1809.
Jung, H.G. and J.F.S. Lamb. 2006. Stem morphological and cell wall traits associated with divergent in vitro neutral detergent fiber digestibility in alfalfa clones. Crop Sci. 46: 2054-2061.
Engels, F.M. and H.G. Jung. 2005. Alfalfa stem tissues: Impact of lignification and cell length on ruminal degradation of large particles. Anim. Feed Sci. Technol. 120: 309-321.
Jung, H.G. and C.C. Sheaffer. 2004. Influence of Bt transgenes on cell wall lignification and digestibility of maize stover for silage. Crop Sci. 44: 1781-1789.
- Invited Papers, Conference Proceedings, Research Reports -
Jung, H., M. Raeth-Knight, and J. Linn. 2004. Forage fiber digestibility: Measurement, variability and impact. Proc., 65th Minnesota Nutrition Conf., St. Paul, MN. Sep. 21-22. pp. 105-125.
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