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Leadership Meet the Administrative Team Departments and Units Aute et fugiat ad est cupidatat esse laborum dolor ex anim anim cillum cillum exercitation culpa. Our Experts Aute et fugiat ad est cupidatat esse laborum dolor ex anim anim cillum cillum exercitation culpa.State Administration Get contact information for Extension administrative personnel by operational area and their respective support personnel. Area Extension Directors Get contact information for the Area Extension Directors (AEDs) County Extension Personnel Aute et fugiat ad est cupidatat esse laborum dolor ex anim anim cillum cillum exercitation culpa.
Jeffrey Lehmkuhler
Extension Faculty
Associated Departments
Scholars@UK
Growth trends in Bos grunniens (yak) raised in pasture-based systems in Eastern Kentucky
Lee, A. L., Lehmkuhler, J. W., McCarty, M. & Dike, G., 2025, In: Canadian Journal of Animal Science. 105, p. 1-6 6 p.Research output: Contribution to journal › Article › peer-review
Whole stillage inclusion level influences in vitro fiber digestibility and ruminal fermentation of tall fescue hay
Ajayi, H. J., Davis, B. E., Lehmkuhler, J. W., Harmon, D. L., Jiang, Y. & Trotta, R. J., 2025, In: Journal of Animal Science. 103, skaf006.Research output: Contribution to journal › Article › peer-review
INVITED REVIEW: Rise of craft distilleries in the southeastern United States increases bourbon-distillery feedstuffs as supplement for beef cattle
Lehmkuhler, J. W. & Vanzant, E. S., Oct 2022, In: Applied Animal Science. 38, 5, p. 456-465 10 p.Research output: Contribution to journal › Article › peer-review
Forages and pastures symposium: Use of marginal lands and fibrous byproducts in efficient beef and dairy production systems
Poore, M. H. & Lehmkuhler, J. W., Jun 2015, In: Journal of Animal Science. 93, 6, p. 2607-2608 2 p.Research output: Contribution to journal › Comment/debate
Reducing phosphorus inputs for grazing Holstein steers
Brokman, A. M., Lehmkuhler, J. W. & Undersander, D. J., Mar 2008, In: Journal of Animal Science. 86, 3, p. 712-719 8 p.Research output: Contribution to journal › Article › peer-review
Tree protection methods during the silvopastoral-system establishment in midwestern USA: Cattle performance and tree damage
Lehmkuhler, J. W., Felton, E. E. D., Schmidt, D. A., Bader, K. J., Garrett, H. E. & Kerley, M. S., 2003, In: Agroforestry Systems. 59, 1, p. 35-42 8 p.Research output: Contribution to journal › Article › peer-review
Bill E. Kunkle interdisciplinary beef symposium: Tall fescue toxicosis update
Scaglia, G., Beck, P., Poore, M. H. & Lehmkuhler, J., Dec 18 2015, In: Journal of Animal Science. 93, 12, p. 5485-5486 2 p.Research output: Contribution to journal › Comment/debate
Blood Meal and Fish Meal as Supplements to Increase the Amino Acid to Energy Ratio in Steer Receiving Diets
Lehmkuhler, J. W. & Kerley, M. S., Jun 1 2007, In: Professional Animal Scientist. 23, 3, p. 253-259 7 p.Research output: Contribution to journal › Article › peer-review
Bill E. Kunkle Interdisciplinary Beef Symposium: Beef cattle welfare and stress
Lehmkuhler, J. W., Corriher, V. A., Larson, J. E., Reuter, R., Stewart, R. L., Garcia, M. D. & Duckett, S. K., Dec 1 2014, In: Journal of Animal Science. 92, 12, p. 5309-5310 2 p.Research output: Contribution to journal › Article › peer-review
Effect of Ractopamine Hydrochloride on Growth Performance and Carcass Traits in Calf-Fed and Yearling Holstein Steers Fed to Slaughter
Vogel, G. J., Duff, G. C., Lehmkuhler, J., Beckett, J. L., Drouillard, J. S., Schroeder, A. L., Platter, W. J., Van Koevering, M. T. & Laudert, S. B., Feb 1 2009, In: Professional Animal Scientist. 25, 1, p. 26-32 7 p.Research output: Contribution to journal › Article › peer-review
Factors affecting wisconsin feeder calf prices at a local livestock market
Halfman, B., Lehmkuhler, J. W. & Cox, T., Dec 2009, In: Journal of Extension. 47, 6Research output: Contribution to journal › Article › peer-review
Ruminal peptide concentration required to optimize microbial growth and efficiency
Fu, C. J., Felton, E. E. D., Lehmkuhler, J. W. & Kerley, M. S., May 2001, In: Journal of Animal Science. 79, 5, p. 1305-1312 8 p.Research output: Contribution to journal › Article › peer-review
Pre-harvest factors influencing the acid resistance of Escherichia coli and E. coli O157:H7
Fu, C. J., Porter, J. H., Felton, E. E. D., Lehmkuhler, J. W. & Kerley, M. S., Apr 2003, In: Journal of Animal Science. 81, 4, p. 1080-1087 8 p.Research output: Contribution to journal › Article › peer-review
Increasing dietary phosphorus level for finishing yearling Holstein steers
Brokman, A. M. & Lehmkuhler, J. W., Feb 2008, In: Asian-Australasian Journal of Animal Sciences. 21, 2, p. 220-224 5 p.Research output: Contribution to journal › Article › peer-review
Comparison of dairy beef genetics and dietary roughage levels
Lehmkuhler, J. W. & Ramos, M. H., Jun 2008, In: Journal of Dairy Science. 91, 6, p. 2523-2531 9 p.Research output: Contribution to journal › Article › peer-review
Comparison of continuous and rotational silvopastoral systems for established walnut plantations in southwest Missouri, USA
Lehmkuhler, J. W., Kerley, M. S., Garrett, H. E., Cutter, B. E. & McGraw, R. L., 1998, In: Agroforestry Systems. 44, 2-3, p. 267-279 13 p.Research output: Contribution to journal › Article › peer-review
Changing market dynamics and value-added premiums in southeastern feeder cattle markets
Burdine, K. H., Maynard, L. J., Halich, G. S. & Lehmkuhler, J., Jun 1 2014, In: Professional Animal Scientist. 30, 3, p. 354-361 8 p.Research output: Contribution to journal › Article › peer-review
KBN 13 Grant Diversified Cattle Production
Lehmkuhler, J. (PI)
3/5/25 → 12/31/26
Project: Research project
KBN 13 Grant
VanValin, K. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Lehmkuhler, J. (CoI), Smith, S. (CoI) & Teutsch, C. (CoI)
3/5/25 → 12/31/26
Project: Research project
Beef Systems Analyzer Update
Bullock, K. (PI), Anderson, L. (CoI), Lehmkuhler, J. (CoI) & VanValin, K. (CoI)
KY Governor's Office of Agricultural Policy
2/24/25 → 2/23/26
Project: Research project
KY Farm Launch: A Beginning Farmer Accelerator Program for Kentucky
Jacobsen, K. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Durbin, K. (CoI), Jacob, J. (CoI), Lehmkuhler, J. (CoI), Potter, A. (CoI), VanValin, K. (CoI), Williams, M. (CoI), Yeargan, R. (CoI) & Young, J. (CoI)
National Institute of Food and Agriculture
9/15/24 → 9/14/27
Project: Research project
KY Farm Launch: A Beginning Farmer Accelerator Program for Kentucky
Jacobsen, K. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Durbin, K. (CoI), Jacob, J. (CoI), Lehmkuhler, J. (CoI), Potter, A. (CoI), VanValin, K. (CoI), Williams, M. (CoI), Yeargan, R. (CoI) & Young, J. (CoI)
National Institute of Food and Agriculture
9/15/24 → 9/14/27
Project: Research project
KBN 12 Diversified Cattle Production System
Lehmkuhler, J. (PI)
2/28/23 → 4/30/25
Project: Research project
KBN 12 Grant Master Grazer
Teutsch, C. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Burdine, K. (CoI), Henning, J. (CoI), Lehmkuhler, J. (CoI), Smith, S. (CoI) & VanValin, K. (CoI)
2/28/23 → 1/31/25
Project: Research project
KBN 12 Grant Expansion of Cow-Calf and Backgrounding/Stocker Profitability Conferences
Burdine, K. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Henning, J. (CoI), Lehmkuhler, J. (CoI), Smith, S. (CoI), Teutsch, C. (CoI) & VanValin, K. (CoI)
2/28/23 → 1/31/25
Project: Research project
KBN 12 Grant Beef Bull Seedstock Symposium
Bullock, K. (PI), Anderson, L. (CoI), Lehmkuhler, J. (CoI) & VanValin, K. (CoI)
2/28/23 → 1/31/25
Project: Research project
KBN 12 Grant Innovative Facilities
VanValin, K. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Burdine, K. (CoI), Lehmkuhler, J. (CoI), Smith, S. (CoI), Teutsch, C. (CoI) & Henning, J. (Former CoI)
2/28/23 → 4/30/25
Project: Research project
KBN 12 Grant Applied Master Cattleman
VanValin, K. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Burdine, K. (CoI), Lehmkuhler, J. (CoI), Smith, S. (CoI), Teutsch, C. (CoI) & Henning, J. (Former CoI)
2/28/23 → 4/30/25
Project: Research project
KBN 12 Grant Back to the Basics
Anderson, L. (PI), Bullock, K. (CoI), Lehmkuhler, J. (CoI) & VanValin, K. (CoI)
2/28/23 → 4/30/25
Project: Research project
KBN 12 Grant Confinement Conference
Lehmkuhler, J. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Burdine, K. (CoI), Smith, S. (CoI), Teutsch, C. (CoI), VanValin, K. (CoI) & Henning, J. (Former CoI)
2/28/23 → 4/30/25
Project: Research project
KBN 12 Grant
VanValin, K. (PI), Anderson, L. (CoI), Bullock, K. (CoI), Burdine, K. (CoI), Lehmkuhler, J. (CoI), Smith, S. (CoI), Teutsch, C. (CoI) & Henning, J. (Former CoI)
2/28/23 → 4/30/25
Project: Research project
Field Monitoring of Beef Cattle Internal Parasite Burden
Lehmkuhler, J. (PI) & Arnold, L. (CoI)
1/26/23 → 12/31/24
Project: Research project
Participant Support: Extension Helps - Extension Response To Eastern Kentucky Flood
Young, J. (PI), Davis, A. (CoI), Hunter, J. (CoI), Kahl, D. (CoI), Lehmkuhler, J. (CoI) & Wilson, D. (CoI)
National Institute of Food and Agriculture
9/30/22 → 9/29/23
Project: Research project
Extension Helps - Extension Response To Eastern Kentucky Flood
Young, J. (PI), Davis, A. (CoI), Hunter, J. (CoI), Kahl, D. (CoI), Lehmkuhler, J. (CoI) & Wilson, D. (CoI)
National Institute of Food and Agriculture
9/30/22 → 9/29/23
Project: Research project
Master Stocker
Lehmkuhler, J. (PI), Burris, W. (CoI), Halich, G. (CoI) & Smith, S. (CoI)
1/1/13 → 12/31/14
Project: Research project
Master Cattlemen
Burris, W. (PI), Anderson, L. (CoI), Bullock, K. (CoI) & Lehmkuhler, J. (CoI)
1/1/13 → 12/31/13
Project: Research project
Kentucky Beef Network
Lehmkuhler, J. (PI), Amaral-Phillips, D. (CoI), Anderson, L. (CoI), Bullock, K. (CoI), Burdine, K. (CoI), Burris, W. (CoI), Halich, G. (CoI) & Smith, S. (CoI)
1/1/13 → 12/31/14
Project: Research project