Life Sciences Commons^™

Forage News [2003-12], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Forage at KCA
• KFGC Awards
• 4^TH Kentucky Grazing Conference
• Characteristics Typical of Profitable Dairy Graziers in Wisconsin
• Alfalfa Average Increase
• Opportunities for Warm Season Grasses
• Costs of Maintaining a Beef Cow in Kentucky, Illinois or Michigan
• Upcoming Events

Forage News [2003-11], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• 4^TH Kentucky Grazing Conference in Lexington
• Buttercup Control in Cool-Season Grass Pastures
• Does “Endophyte” in Stockpiled Tall Fescue Impact Animal Performance?
• Upcoming Events

Forage News [2003-10], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Illinois Animal Scientist to Speak at Kentucky Grazing Conference
• KFGC Awards: Deadline October 15
• Fighting Tall Fescue Toxicity: Is There a Silver Bullet?
• Forage Extension Position
• Performance of Grazing-Tolerant Alfalfa Varieties Rotationally Grazed by Dairy Cattle
• The Most Important Invention in 2000 Years?
• Last Call for October Grazing School
• A Long, Rich History
• Evaluating Hay Quality
• Upcoming Events

A Neuronal-Specific Differentiation Protein That Directly Modulates Retinoid Receptor Transcriptional Activation, Kenneth W. Henry Ii, Michael L. Spencer, Maria Theodosiou, Dingyuan Lou, Daniel J. Noonan

Molecular and Cellular Biochemistry Faculty Publications

BACKGROUND: The specificity of a nuclear receptor's ability to modulate gene expression resides in its ability to bind a specific lipophilic ligand, associate with specific dimerization partners and bind specific DNA sequences in the promoter regions of genes. This sequence of events appears to be the basis for targeting an additional regulatory complex composed of a variety of protein and RNA components that deliver signals for facilitation or inhibition of the RNA polymerase complex. Characterization of the tissue and cell-specific components of these coregulatory complexes appear to be integral to our understanding of nuclear receptor regulation of transcription.

RESULTS: A …

Simulation Of Fixed– And Variable–Rate Application Of Granular Materials, John Patrick Fulton, Scott A. Shearer, Timothy S. Stombaugh, Michael E. Anderson, Thomas F. Burks, Stephen F. Higgins

Biosystems and Agricultural Engineering Faculty Publications

Research has shown that application errors exist with variable–rate technology (VRT) systems. Consequently, using prescription maps for economic and agronomic analyses can generate misleading results. The intent of this article was to develop and validate a spatial data model for generating “as–applied” maps to support the advancement of precision agriculture practices. Previous research modified ASAE Standard S341.2 to include a 2–D matrix of collection pans to assess fixed–rate and variable–rate (VR) deposition of granular fertilizers and agricultural lime from a spinner disc spreader. The “as–applied” spatial data model uses GIS functionality to generate “as–applied” surfaces by merging distribution patterns and …

Forage News [2003-09], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Grazing School in Paris October 14-15
• Kentucky Grazing Conference
• KFGC Awards
• Influence of Nitrogen Rate and Pasture Composition on Toxicity, Quality and Yield of Stockpiled Tall Fescue
• Revised Publications
• Variety Information Available on Web
• Feed Cost #1
• Can It Pay to Graze High Value Land?
• Upcoming Events

Cutter Assembly For Microscope And Related Method, Richard R. Muse, Lisa J. Vaillancourt, William J. Young

Plant Pathology Faculty Patents

A low-profile cutter assembly for use on a microscope and related cutting method are provided. The cutter assembly includes a support subassembly having a mounting ring for receiving and engaging the objective of a microscope. A cutter subassembly carried by the support subassembly is displaceable between a home and a forward position in response to actuation. Upon reaching the forward position, additional actuation causes the front end of the cutter subassembly to pivot toward the stage, thereby placing a cutter adjacent to or in contact with the specimen. By selectively actuating the cutter subassembly, multiple cuts may be performed, as …

Forage News [2003-08], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Forages at KCA
• Seeding Cool Season Grasses
• Tall Fescue Response to Nitrogen Fertilization for Stockpiled Grazing
• Extending the Grazing Season
• Round Bale Silage
• Does Grazing Management Impact the Production and Winter Survival of Annual Ryegrass?
• Upcoming Events

Forage News [2003-07], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• UK All Commodity Field Day
• Intensive Hay Conditioning Systems
• South Central Kentucky Agriculture Field Day
• Fructans in Pasture Grasses and Implications for Equine Laminitis in Kentucky
• Hybrid and Protein Supplement Affect Gains of Cattle Grazing Mature Corn
• Crop Options for an Expanding Dairy Farm in Wisconsin
• Kentucky Ranks in Top 20
• Upcoming Events

Forage News [2003-06], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Plant and Soil Sciences Field Day
• Kentucky Grazing School
• KFGC Elects New Board Members
• Hay Temperature
• The Influence of Solar Radiation and Vapor Gradient on Alfalfa Hay Drying Rates
• Approximate Diet Selection of Grazing Animals When Offered in a Mixed Pasture
• Designer Milk
• Upcoming Events

Is Hp1 An Rna Detector That Functions Both In Repression And Activation?, Rebecca Kellum

Biology Faculty Publications

Heterochromatin is defined as regions of compact chromatin that persist throughout the cell cycle (Heitz, 1928). The earliest cytological observations of heterochromatin were followed by ribonucleotide labeling experiments that showed it to be transcriptionally inert relative to the more typical euchromatic regions that decondense during interphase. Genetic studies of rearrangements that place euchromatic genes next to blocks of heterochromatin also pointed out the repressive nature of heterochromatin (Grigliatti, 1991; and references therein). The discovery of the heterochromatin-enriched protein heterochromatin protein 1 (HP1) by Elgin and co-workers in the mid-1980s suggested that the distinct cytological features of this chromatin may be …

Addressing The Decline In Reproductive Performance Of Lactating Dairy Cows: A Researcher’S Perspective, William J. Silvia

Animal and Food Sciences Faculty Publications

No abstract provided.

Assessing The Benefits Of Misting–Cooling Systems For Growing/Finishing Swine As Affected By Environment And Pig Placement Date, Thomas C. Bridges, Larry W. Turner, Richard S. Gates, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

The NCPIG swine growth model was used to evaluate swine growth performance for Wilmington, North Carolina; Bardstown and Mayfield, Kentucky; and Oklahoma City, Oklahoma as influenced by the use of a misting–cooling system. Five pig placement dates (Julian days 106, 126, 146, 166, and 186) were evaluated for each location using 22 years of weather data (1978–1999). The use of a misting system, while quite variable, was found to be generally profitable, reducing the length of the time to reach market weight. As the placement date increased, the average return to misting ($/pig/year) decreased from $8.12 to $1.98 for Oklahoma …

Forage News [2003-05], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Losses and Drying Rates of Different Conditioners
• UK Robinson Station Host All Commodity Field Day
• Impact of Alfalfa Cutting Height on Yield and Quality
• Kentucky Plays Prominent Role at National Level
• Cool Season Pastures and Meat Goat Interaction
• Relationship Between Yield and Quality
• Upcoming Events

Forage News [2003-04], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Forage News Loss – College of Agriculture Gain
• Forage News Reflections
• Kentucky Grazing School
• Forages for Goats
• The Meat Goat and Cattle Consortium
• Upcoming Events

Pc–Based Data Acquisition For A Solid Substrate Cultivation Deep Bed Reactor, Mari S. Chinn, Sue E. Nokes, Richard S. Gates

Biosystems and Agricultural Engineering Faculty Publications

This work describes an instrumentation and data acquisition system designed for a deep bed reactor used to cultivate Trichoderma longibrachiatum on wheat bran. The system allowed on–line measurements of substrate temperature, oxygen concentration within the reactor headspace, relative humidity and temperature of the inlet air, and inlet airflow rates while maintaining aseptic conditions and without disturbing the cultivation process. An error analysis for the instrumentation and data acquisition equipment was completed and provided insight into the reliability of the sensor readings. The collected data provided quantitative information about the reactor system dynamics which can be used to evaluate and apply …

Forage News [2003-03], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Central Kentucky Alfalfa Conference
• Congratulations Alfalfa Award Winners
• 23^RD Kentucky Alfalfa Conference
• Congrats to Kentucky Alfalfa Hay Contest Winners
• Forage Variety Test Reports Available Locally and on Web
• Nitrogen on Grass
• Spring Oats
• I Can’t Wait for Lafayette, LA
• Kentucky Grazing School
• Upcoming Events

Hiv Protease Inhibitors Promote Atherosclerotic Lesion Formation Independent Of Dyslipidemia By Increasing Cd36-Dependent Cholesteryl Ester Accumulation In Macrophages, James Dressman, Jeanie Kincer, Sergey V. Matveev, Ling Guo, Richard N. Greenberg, Theresa Guerin, David Meade, Xiang-An Li, Weifei Zhu, Annette M. Uittenbogaard, Melinda E. Wilson, Eric J. Smart

Physiology Faculty Publications

Protease inhibitors decrease the viral load in HIV patients, however the patients develop hypertriglyceridemia, hypercholesterolemia, and atherosclerosis. It has been assumed that protease inhibitor–dependent increases in atherosclerosis are secondary to the dyslipidemia. Incubation of THP-1 cells or human PBMCs with protease inhibitors caused upregulation of CD36 and the accumulation of cholesteryl esters. The use of CD36-blocking antibodies, a CD36 morpholino, and monocytes isolated from CD36 null mice demonstrated that protease inhibitor–induced increases in cholesteryl esters were dependent on CD36 upregulation. These data led to the hypothesis that protease inhibitors induce foam cell formation and consequently atherosclerosis by upregulating CD36 and …

Forage News [2003-02], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Cave City – Here We Come
• Forages at KCA
• Hard Seed in Alfalfa
• Large Baler Research and Storage Ideas
• Pasture Renovation
• Heart of America Grazing Conference
• Upcoming Events

2002-2003 Kentucky Canola Variety Performance Test, Greg Schwab, Lloyd W. Murdock, James H. Herbek, Chad Lee, David Van Sanford

Agronomy Notes

Winter canola is a crop that is well suited for Kentucky’s climate and crop rotation, but production peaked at 20,000 acres in 1989and has since declined mainly due to winter hardiness concerns. Changes in the 2002 farm bill have once again caused farmers to consider converting some of their wheat acreage to canola production. For the past several years, plant breeders have been working to improve canola’s winter hardiness and have released several varieties that seem to be better suited for Kentucky’s variable winters than the varieties grown in the late 1980s. A study was initiated in the fall of …

Manganese Distribution Across The Blood-Brain Barrier. I. Evidence For Carrier-Mediated Influx Of Managanese Citrate As Well As Manganese And Manganese Transferrin, Janelle S. Crossgrove, David D. Allen, Bonny L. Bukaveckas, Susan S. Rhineheimer, Robert A. Yokel

Pharmaceutical Sciences Faculty Publications

Manganese (Mn) is an essential element and a neurotoxicant. Regulation of Mn movement across the blood–brain barrier (BBB) contributes to whether the brain Mn concentration is functional or toxic. In plasma, Mn associates with water, small molecular weight ligands and proteins. Mn speciation may influence the kinetics of its movement through the BBB. In the present work, the brain influx rates of ⁵⁴Mn²⁺, ⁵⁴Mn citrate and ⁵⁴Mn transferrin (⁵⁴Mn Tf) were determined using the in situ brain perfusion technique. The influx rates were compared to their predicted diffusion rates, which were determined from …

Kentucky Water Resources Research Institute Annual Technical Report Fy 2002, Kentucky Water Resources Research Institute, University Of Kentucky

KWRRI Annual Technical Reports (USGS’s 104b Grant Program)

The FY 2002 Annual Technical Report for Kentucky consolidates reporting requirements of the Section 104(b) base grant award in a single technical report that includes: 1) a synopsis of each research project supported during the period, 2) a list of related reports, 3) a description of information transfer activities, 4) a summary of student support during the reporting period, and 5) notable achievements and awards during the year.

Forage News [2003-01], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Happy New Year!
• Regional Grazing Conference Coming to Hannibal, Missouri
• Oops!!!
• Organic Agriculture Depends on Inorganic Nutrients
• 23^RD Alfalfa Conference Set for February 20
• Upcoming Events