Troy
Downing, OSU Extension Dairy faculty (503)
842-5708 x 211
Contact Troy
Downing for information on the research listed below
1. Downing, T. 2008. Developing an air emissions extension program
for the Oregon dairy industry. Western
Region Extension Professional Development Conference, Redmond, OR.
2. Downing, T. 2008. Selecting for improved energy content in
grasses. International Livestock and
Dairy Exposition. New Delhi, India.
3. Downing, T. 2007. International dairy extension in
Siberia. Western Region Extension
Professional Development Conference, Tucson, AZ. Pg 7.
4.
Downing, T. and J.
Hart. 2007. The economics of liming coastal dairy
pastures. American Dairy Science Annual
Meeting. J Dairy Sci. Vol. 90 Suppli. 1
pg 36.
5. Downing, T. 2006. Relationship between size of vegetated
buffers and transport of fecal coliform bacteria. Western Region Extension
Professional Development Conference, Boise, ID.
Pg 37.
6. Downing, T., P. French, and B. Frisch. 2006. Neutral detergent fiber digestibility in cool
season grasses. Western Region Extension Professional Development Conference,
Boise, ID. Pg 22.
7. Downing, T., P. French, and B. Frisch. 2006. Fiber digestibility in cool season grasses.
Oregon State University Extension Annual Conference, Corvallis, OR.
8. Downing,
T., A. Buyserie, P. French and M. Gamroth. 2006. Effect of non-structural carbohydrates on ensiling
characteristics of perennial grasses.
American Forage and Grasslands Council proceedings, pg 29.
9. Sullivan, T.J.,J. A. Moore, T.W. Downing, D. Thomas, E. Mallory, K.U. Snyder, M.
Wustenberg, S. Mackey. 2006.
Relationship between Size of Vegetated buffers and transport of fecal
coliform bacteria from pasturelands treated with dairy cow manure. American Dairy Science Annual Meeting. J Dairy Sci.
Vol. 89, Suppl. 1: 298.
10. French,
P., T. W. Downing, B. D. Frisch, J. L. Chamberlain, and J. L. Warntjes. 2006.
Neutral detergent fiber digestibility of cool-season grasses. American Dairy Science
Annual Meeting. J Dairy Sci. Vol. 89 Suppl. 1: M53.
11. Frisch,
B P. French, and T. Downing. 2006. Fiber
digestibility in cool season grasses.
Tri-State Dairy Conference, Portland, OR.
12. VanWieringen, L, J.H. Harrison, R. L. Kincaid, A. Hristov, R.
Sheffield, M. Gamroth, P. French, T. Downing,
and A. L. Sutton. 2005. Development of an on-farm feed management assessment
tool for use with dairy comprehensive nutrient management plans. American Dairy Science Annual Meeting. J Dairy Sci. 88 Suppli 1: 328.
13.
Harrison, J. H., L. Van Wieringen,
R. Kincaid, A. Histov, R. Sheffield, M. Gamroth and T. Downing. 2004. Western Integrated Nutrition and
Nutrient Management Education (WIN2ME) for the nutrition and nutrient
management professional. American Dairy Science
Annual Meeting .
J Dairy Sci. 87 Suppl. 1:
247.
14.
Buyserie, A.C.,
T. W. Downing and P.D. French. 2004. Effect of nonstructural carbohydrates
on ensiling characteristics of perennial ryegrass. Proceedings of the Thirty-ninth Annual
Pacific Northwest Animal Nutrition Conference. p. 148.
15.
Buyserie, A., P. French, and T. Downing. 2004. Effect of
grass nonstructural carbohydrates on milk yield and composition and dry matter
intake of dairy cattle. American Dairy Science
Annual Meeting
. J. Dairy Sci. 87 Suppl. 1:37.
16.
Downing, T. 2004. Phosphorus
education for Oregon's dairy industry.
Western Region Extension Professional Development Conference. Woodland, CA. pg. 40.
17. Buyserie, A., T.
Downing, P. French and M. Gamroth.
2004. Effect of grass forage
nonstructural carbohydrates on dry matter intake, milk yield and composition of
dairy cattle. American Forages and
Grasslands Council Proceedings, Vol 13, pg 327.
18. Downing, T., A.
Buyserie, P. French, and M. Gamroth. 2004.
Nonstructural carbohydrates in cool season grasses. American Forages and Grasslands Council
Proceedings, Vol. 13, pg 90.
19. Downing, T. 2003.
Non-structural carbohydrates in cool season grasses. Pacific Northwest
Animal Nutrition Conference Proceedings. Pgs 169-177.
20. Downing,
T., B. Lambert and M. Gamroth. 2003.
Impact of manure application timing in dairy pastures on the migration of
nitrates to groundwater. American Dairy Science Annual Meeting . J. Dairy Sci. Vol. 86, Suppl., 1 pg 282.
21. Downing, T. A.
Buyserie and M. Gamroth. 2003. The
relationship between nonstructural carbohydrates and total dry matter yield in
cool season grasses. American Dairy Science Annual
Meeting. J. Dairy Sci. Vol. 86, Suppl., 1 pg. 286.
22.
French, M.E., T.W. Downing, and P.D. French. 2003.
Oregon dairy environmental stewardship program. American Dairy Science
Annual Meeting. J. Dairy Sci. Vol. 86,
Suppl., 1 pg 357.
23. Downing, T.
2003. Nonstructural carbohydrates in
cool season grasses. Western Region
NACAA professional improvement conference proceedings. Las Vegas, NV. pg. 23.
24. Downing, T.
2002. Nutrient management plans for pasture-based dairies. Western Region NACAA professional improvement
conference proceedings. Las Vegas, NV.
pg 13.
25.
Downing, T. and T. Leonnig.
2002. Nutrient cycling in cool season grasses. American Dairy Science
Annual Meeting.
J. Dairy Sci. Vol. 85, Suppl. 1, abstract 1333.
26.
Downing, T. and T. Leonnig. 2002. Use of animal waste management plans on
pastured based dairies to increase productivity and reduce environmental
impacts. American Dairy Science Annual Meeting . J. Dairy Sci. Vol. 85, Suppl.
1, abstract 490.
27.
Downing, T. and J. Hart. 2001.
Phosphorus adsorption implications on phosphorus management on
dairies. American Dairy
Science Annual Meeting .
J. Dairy Sci. Vol. 84, Suppl. 1, abstract 1304.
28. Rudell, A., J. Hart,
M. Bohle, J. Carr. T. Downing, S. Filley, G. Pirelli and M. Porath. 2001.
Using air temperature to time nitrogen application for increased early
forage production. Soc. Range Management
54th Annual meeting, Kailua-Kona, HI.
29. Downing,
T.W and T.T. Leonnig. 2000. Utilizing dairy manure agronomically on
pastures. Agriculture and Water Quality
in the Pacific Northwest Conference. Conference
proceedings, pg. 76.
30. Bohle, M., J.
Carr, T. Downing, S. Filley, J. Hart, G. Pirelli, M. Porath and A. Ruddell. 2000.
Protecting groundwater while optimizing N applications for pasture
forage production in Oregon. Agriculture
and Water Quality in the Pacific Northwest Conference. Conference proceedings, pg 42.
31. Downing,
T.W. 2000. Nitrogen cycling on pasture based dairies. American Dairy Science Annual Meeting. J. Dairy Sci. Vol 83, Suppl. 1, abstract 450.
32. Downing, T. W.
and M. Gamroth. 1999. Extension and industry team up to tackle waste management
issues on dairies. Oregon State
University Extension Annual Conference Poster Session. 33. Dodson, R.E., S.A. Ericsson, K.L. Sternes, T.W.
Downing, and P.H. Purdy. 1999. Use of
reducible dyes resazurin, 2', 6' -dichloroindophenol and methylene green to
estimate rumen microbe numbers. J Animal
Science, Vol 77, Supplement 1, abstract 567.
34. Downing, T.W. and T.T. Leonnig. 1999. Animal waste management plans in dairies: An
industry approach. J Dairy Science Vol
82, supplement 1, abstract P102.
35. Downing, T.W., D.L. Garner, S.A. Ericsson and D.
Redelman. Alteration of sperm metabolism
by fluorescent viability stains. XIV
International Meeting of the Society for Analytical Cytology, 1991. Cytometry Supplement 4, abstract 276.
36. Garner, D.L., S.A. Ericsson, T.W. Downing and B.R.
Behr. 1991. Functional assessment of cryopreserved human spermatozoa using flow
cytometric and computer-assisted motility analyses. American Society of Cell Biology.
37. Downing, T.W., S.A. Ericsson, D.L. Garner. 1990.
Effects of added cytoplasmic droplets on bovine metabolism. American Society of Andrology Annual Meeting
1990. Andrology Supplement 122.
38. Sternes, K.L., S.A. Ericsson, T.W. Downing and D.L.
Garner. 1990. Relative mitochondrial DNA content and weight per day of age in
beef heifers. West Sec Am Soc Anim Sci
1990 Meeting, J Anim Sci 68, supplement 1, abstract 81.
39. Ericsson, S.A., D.L. Garner, R.Y. Kramer, T.W. Downing
and D. Redelman. 1990. Modified Tri-Functional fluorescent staining of
cryopreserved bovine sperm. XIV
International Meeting of the Society for Analytical Cytology. Cytometry
Supplement 4, Abstract 275.
40. Ericsson, S.A., D.L. Garner, T.W. Downing and D.
Redelman. 1990. Tri-Functional fluorescent staining of fertility tested bovine
spermatozoa. American Society of
Andrology Annual Meeting, 1990.
Andrology Supplement, Abstract 123.
41. Kramer, R.Y., D.L. Garner, S.A. Ericsson, D. Redelman
and T.W. Downing. The effect of dietary
cottonseed on testicular development in pubertal rams. Proc West Sec Am Soc Anim Sci 40:309-312,
1989.