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
Selected Publications
- Refereed Articles -
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.
Nennich, T.D., J.G. Linn, D.G. Johnson, M.I. Endres, and H.G. Jung. 2003. Comparison of feeding corn silages from leafy or conventional corn hybrids to lactating dairy cows. J. Dairy Sci. 86: 2932-2939.
Jung, H.G. and F.M. Engels. 2002. Alfalfa stem tissues: cell wall deposition, composition, and degradability. Crop Sci. 42: 524-534.
Bliss, D.Z., H.G. Jung, K. Savik, A. Lowry, M. LeMoine, L. Jensen, C. Werner, and Schaffer. 2001. Supplementation with dietary fiber improves fecal incontinence. Nursing Res. 50: 203-213.
Jung, H.G. and F.M. Engels. 2001. Alfalfa stem tissues: rate and extent of cell-wall thinning during ruminal degradation. Neth. J. Agric. Sci. 49: 3-13.
Moore, K.J. and H.G. Jung. 2001. Lignin and fiber digestion. J. Range Manage. 54: 420-430.
Vogel, K.P. and H.G. Jung. 2001. Genetic modification of herbaceous plants for feed and fuel. Crit. Rev. Plant Sci. 20: 15-49.
Bliss, D.Z., J. McLaughlin, H-J. Jung, A. Lowry, K. Savik, and L. Jensen. 2000. Comparison of the nutritional composition of diets of persons with fecal incontinence and that of age- and gender-matched controls. JWOCN 27: 90-97.
Jung, H.G., M.A. Jorgensen, J.G. Linn, and F.M. Engels. 2000. Impact of accessibility and chemical composition on cell wall polysaccharide degradability of maize and lucerne stems. J. Sci. Food Agric. 80: 419-427.
Stombaugh, S.K., H.G. Jung, J.H. Orf, and D.A. Somers. 2000. Genotypic and environmental variation in soybean seed cell wall polysaccharides. Crop Sci. 40: 408-412.
Weimer, P.J., J.M. Hackney, H.G. Jung, and R.D. Hatfield. 2000. Fermentation of a bacterial cellulose/xylan composite by mixed ruminal microflora: implications for the role of polysaccharide matrix interactions in plant cell wall biodegradability. J. Agric. Food Chem. 48: 1727-1733
- 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 Conference, St. Paul, MN. Sep. 21-22. pp. 105-125.
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