Numbered Publications by Jeff Lehmkuhler
ID-143: Rotational Grazing
Roy Burris, Bob Coleman, Jimmy Henning, Garry Lacefield, Jeff Lehmkuhler, Ray Smith | Nov. 21, 2016 (Reprinted)
A rotational grazing program can generally be defined as use of several pastures, one of which is grazed while the others are rested before being regrazed. Continuous grazing is the use of one pasture for the entire grazing season.
ID-231: Forage-Related Cattle Disorders: Acute or Atypical Interstitial Pneumonia (AIP)
Michelle Arnold, Jeff Lehmkuhler | Jul. 17, 2015 (New)
In the Southeastern United States, acute interstitial pneumonia has been produced by ingestion of the leaves and seeds of perilla mint (Perilla frutescens). Perilla ketone is the toxin absorbed from the rumen into the bloodstream and carried to the lungs where it damages the lung tissue in cattle.
ASC-215: Mineral and Protein Blocks and Tubs for Cattle
Donna Amaral-Phillips, Roy Burris, Jeff Lehmkuhler | Nov. 3, 2014 (New)
Nutritional supplement blocks and tubs are convenient for beef producers, require no investment in feeding troughs and require a limited area for storing. One of the most attractive features is that they lower the labor needed to supplement livestock. Many producers use these products to provide supplemental nutrients to cattle consuming low-quality forages or as a mechanism to promote a more consistent intake of minerals. These products are also attractive to producers who have off-farm employment as they eliminate the need for daily feeding. Yet, they often come at a greater cost per unit of nutrient than more conventional feedstuffs. Since there are differences in the blocks and tubs being marketed today, familiarity with how to compare products and determine their differences will enable producers to decide which product best fits their needs.
ID-226: Forage-Related Cattle Disorders: Hypomagnesemic Tetany or "Grass Tetany"
Michelle Arnold, Jeff Lehmkuhler | Sep. 18, 2014 (New)
Magnesium is a vital component of normal nerve conduction, muscle function, and bone mineral formation. Hypomagnesemic tetany or "grass tetany" is a disorder caused by an abnormally low blood concentration of the essential mineral magnesium (Mg). Synonyms for this disorder include spring tetany, grass staggers, wheat pasture poisoning, or lactation tetany.
ID-223: Forage-Related Cattle Disorders: Brassicas--Be Aware of the Animal Health Risks
Michelle Arnold, Jeff Lehmkuhler | Aug. 12, 2014 (New)
Although infrequent, brassica crops can cause animal health disorders if grazing is managed improperly. Most brassica-related disorders in cattle tend to occur during the first two weeks of grazing while adjusting to the forage. The primary potential disorders are polioencephalomalcia or PEM, hemolytic anemia (mainly with kale), nitrate poisoning, and pulmonary emphysema. Other possible clinical disorders include bloat and rumen acidosis, and metabolic problems such as hypomagnesemia and hypothyroidism with goiter. Glucosinates present in brassicas are precursors of irritants that can cause colic and diarrhea. Large bulbs may lodge in the esophagus and lead to choking. Certain brassicas (specifically rape) can cause sunburn or "scald" on light-skinned animals, especially when grazed while the plants are immature. Other potential problems include oxalate poisoning and off-flavoring of meat and milk.
SR-105: 2012 Beef Research and Extension Report
Glen Aiken, Les Anderson, Darrh Bullock, Roy Burris, Lowell Bush, J.R. Bussard, Andrew Foote, Ben Goff, David Harmon, V.B. Holder, Isabelle Kagan, Nicole Kenney, D.H. Kim, S.E. Kitts, Jim Klotz, Anne Koontz, Jeff Lehmkuhler, Kyle McLeod, Jim Strickland, Eric Vanzant, Bill Witt | Jan. 7, 2014 (New)
The intent of this report is to provide highlights of our research and extension activities. We have a vested interest in the beef industry in the state and nation, and hope this report provides a window into our programs. We believe that after viewing this report, a greater appreciation will be garnered with respect to our involvement in the multiple fields of study related to beef production. The faculty, staff and student activities are advancing our understanding of basic science principles of livestock production as well as applied research that producers and the industry can benefit from immediately, as well as in the future. Extension educational programs, on-farm demonstrations, and other activities aid in transferring this knowledge to producers, allowing for increased awareness and adoption of management change.
ID-202: Feedlot Design and Environmental Management for Backgrounding and Stocker Operations
Steve Higgins, Jeff Lehmkuhler, Sarah Wightman | Mar. 21, 2013 (New)
Kentucky's cattle industry represents the largest beef cattle herd east of the Mississippi, ranking eighth in the nation for number of beef cows. This industry is extremely important to Kentucky's economy. This publication discusses site evaluation strategies, production area management techniques, and a variety of facility types for intensive cattle production that preserve natural resources and improve production.
ID-205: Drought-Stressed Corn Silage Valuation, 2012
Kenny Burdine, Greg Halich, Jeff Lehmkuhler, Cory Walters | Feb. 6, 2013 (New)
Extended dry conditions have impacted the corn crop severely in many areas of the state this year. As the condition of the corn crop deteriorates, many have been forced to look at salvage options such as cutting corn for silage and possibly hay for some fields. Due to the extreme weather conditions this year, this publication will focus on valuing drought-stressed corn silage.
ID-135: Infectious Bovine Keratoconjunctivitis ("Pinkeye") in Cattle
Michelle Arnold, John Johns, Jeff Lehmkuhler, Patty Scharko | Sep. 24, 2012 (Major Revision)
Infectious Bovine Keratoconjunctivitis (IBK), also known as pinkeye, is a costly disease for the beef producer. Tremendous losses stem from poor weight gain and loss of appetite in affected animals suffering from visual impairment and ocular pain.
ASC-186: Distillers Grain Coproducts for Beef Cattle
Roy Burris, Jeff Lehmkuhler | Dec. 5, 2011 (New)
Feeding distillers grains derived from the production of spirits or ethanol for fuel is an acceptable practice for beef cattle production. The use of these products as both an energy and a protein supplement has been beneficial as the cereal grain prices have increased making these coproducts more cost competitive.
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