Physical Sciences and Mathematics Commons^™

Forage Spokesman Information, Clayton Geralds, Brady Jarvis

Kentucky Grazing Conference

No abstract provided.

Supplementing Cattle On Pasture: When, What And How Much?, Roy Burris

Kentucky Grazing Conference

The biggest advantage of maintaining cattle in the southeast is our ability to grow forages. It is generally an economic advantage to make maximum use of our forage and then supplement only when needed to meet our production goals. Judicious use of extra nutrition to grazing cattle can allow us to meet an objective which was best stated by Hoveland in 1986:

“Our objective is to maintain pasture at the highest quality that the environment will allow and efficiently convert as much of the pasture as possible into saleable animal product.”

Fencing And Watering Systems: Simpler Is Better, Ralph Quillin

Kentucky Grazing Conference

Sustainability and Grazing Management have taken on a new importance in the Americana farm community. The key components of the sustainable approach, profitability, agronomic, social and ecological responsibility and quality of life are becoming obtainable goals for this and future farming generations.

Practical Grazing Management And Feed Strategies To Alleviate Fescue Toxicosis, Glen Aiken

Kentucky Grazing Conference

Tall fescue grown in Kentucky is productive and persistent and that is why the state has 5 million acres of the stuff! Fescue has tolerances to drought, low fertility, and overgrazing that are attributed to a fungal endophyte which infects most tall fescue plants. Unfortunately, these advantages of tall fescue that livestock producers appreciate are offset by reduced calving percentages and calf weight gains caused by consumption of ergot alkaloids produced by the endophyte. Ergot alkaloids affect the physiology of cattle to cause elevation in body temperature, reduced sweating, retention of winter hair coats and uncontrollable growth of summer hair …

Herbicide Options For Pasture Weed Control, Jonathan D. Green

Kentucky Grazing Conference

Weeds have become more evident and problematic in grazed pastures as forage and livestock production systems have intensified. As animals consume the more desirable and palatable plant species in pastures, weedy plants become more abundant. In particular, animals tend to avoid grazing plants which contain thorns, prickly spines, or are unpalatable making some pastures less productive. In fact, many of the more problematic plants observed in Kentucky’s grazed pastures possess these characteristics including thistles, spiny amaranth (spiny pigweed), horsenettle, common cocklebur, tall ironweed, and buttercups.

Horse Pasture Monitoring Program: Results After Three Years, Tom Keene, S. Ray Smith

Kentucky Grazing Conference

Since 2001-2002 and the outbreak of Mare Reproductive Loss Syndrome (MLRS) the University of Kentucky has been developing stronger ties with the state’s equine industry. Approximately 30% of the foal crop was lost in the Central Bluegrass region during this period with a devastating impact on the industry. Traditionally, many Thoroughbred farms have functioned as independent entities, but MLRS helped them to realize that the University of Kentucky had tremendous amount of expertise that they could provide in the areas of animal health, forage management, and other areas. Initially, there were many theories as to the cause of MLRS with …

Forage Legumes Vs. Fertilizer Nitrogen, Garry D. Lacefield

Kentucky Grazing Conference

A few weeks after I started to work as a Forage Extension Specialist at the University of Kentucky, I heard my mentor and forage idol, Mr. Warren Thompson, speak on forage legumes. Warren, along with Dr’s. Tim Taylor and W.C. Templeton had pioneered the “Pasture Renovation Program” in Kentucky. In addition, Mr. Ed Smith had joined the team and collectively they developed the “Power-til Pasture Renovator.” Warren began his presentation by talking about Kentucky Forages pointing out we were so fortunate to have a good grass base and the opportunity to grow lots of legumes. He also talked about all …

Growth Of Grasses And Legumes: Impact On Grazing, S. Ray Smith

Kentucky Grazing Conference

The primary, cool season, perennial pasture grasses used in Kentucky are orchardgrass, bluegrass, and tall fescue. When not grazed or harvested, each of these passes through successive stages of growth in the spring: 1) leafy vegetative; 2) boot with seed heads enclosed in leaf sheath; 3) heading when the seed heads begin to show and, 4) bloom when pollination has occurred ( Figure 2). Since fiber and lignin contents increase steadily beyond the vegetative stage, while percent protein and digestibility decrease, a major goal in grazing management is to maintain these grasses in the leafy, vegetative stage at all times. …

Foreword And Kfgc Award Winners [2008], Garry D. Lacefield, Christi L. Forsythe

Kentucky Grazing Conference

No abstract provided.

Poster Session, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Kentucky Water Awareness Month Packet, Ashley Osborne, UK Cooperative Extension Service, ENRI Task Force
• Recent Enhancements to the Kentucky Groundwater-Quality Data Search Engine, Bart Davidson and R. Stephen Fisher, KGS
• Diatom Colonization Patterns and Carbon Stable Isotopic Ratios in Developing Periphyton at Springs of Differing Geologic Origin in Land-Between-the-Lakes, Courtney Snapp and Susan Hendricks, Water Sciences Program, Murray State University
• Seasonal Changes in Stratification and Oxygen Content of a Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Jill Hunter and Walter Borowski, Dept of Geography and Geology, EKU
• Water Pioneers Water Quality Program 2007, Stephanie Jenkins, …

Session 2d: Pathogen Transport, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Assessment of Nonpoint Source Impacts on Groundwater Quality in South Elkhorn Creek Basin, Central Kentucky, Robert J. Blair and others, Kentucky Division of Water, Frankfort
• Karst Groundwater Infiltration of the Sanitary Sewer within the Beargrass Creek Watershed, Jefferson County, Kentucky, Joseph Ray and others, Kentucky Division of Water
• Illicit Discharge into Town Branch in Lexington, Kentucky, Jim Buckles and others, Tetra Tech, Lexington
• Assessment of Water Quality Trends in the Upper Forks of the Kentucky River Basin: Focus on Pathogen Impairment, Chandramouli Viswanathan, Kentucky Water Resources Research Institute, UK

Session 2c: Water Quality, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Determinations of Bioavailable Fractions in the Assessment of Metals in Big and Little Bayou Creeks……, McCracken County, Kentucky, David J. Price, Dept Biology, UK
• Creation of a Catalog of Environmental Mercury Databases in Kentucky, Caroline Chan and others, School of Public Health and Information Sciences, U of L
• Using Nitrogen Isotopes to Trace Nutrient Inputs to a Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Walter Borowski and Theresa Aguiar, Dept of Geography and Geology, EKU
• Using Microbial Distribution and Abundance in a Eutrophic Lake as a Tracer for Nutrient Inputs, Wilgreen Lake, Madison County Kentucky, Theresa …

Session 2b: Variety, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Mud, Horses and Clean Water – A BMP Demonstration Project for Suburban Horse Owners, Steve Higgins and others, Biosystems and Ag Engineering, UK
• A Topological Model of Open Channel Flows, Brian Belcher and Jimmy Fox, Dept of Civil Engineering, UK
• Rain Gardens: Restoring a Waste Water to a Priceless Treasure, H. David Gabbard, LFUCG, Richard Walker, Tetra Tech, and Sandy Camargo, CDP Engineers
• Kentucky Erosion Prevention and Sediment Control (KESPSC) – An Answer to the Question “What is a Qualified Inspector?” Shelby Jett, Kentucky Transportation Cabinet, Kevin Gibson and John Ricketts, Stantec Consulting Services, Lexington

Session 2a: Groundwater, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• How Close Do We Need to Sample for Appropriate Solute Transport Characterization Through the Vadose Zone? Ole Wendroth and others, Dept of Plant and Soil Sciences, UK
• Efficiently Locating and Repairing Damaged Sewer Lines in a Karst Terrane, Kevin Lyne, LFUCG and Robert Blair, KDOW
• Hydrogeologic Investigations of Pavement Subsidence in the Cumberland Gap Tunnel, Jim Dinger and others, KGS

Session 1d: Land Use, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Mountaintop Mining and Sustainable Development Opportunities for Appalachia, J. Stephen Gardner, Engineering Consulting Services, Inc., Lexington
• Spatial Characterization of Kentucky’s 2005-2001 Land Cover Change, A Kentucky Landscape Census Product, Demetrio Zourarakis and others, Kentucky Division of Geographic Information
• Feasibility Study of Cover-Collapse Rate in the Western Pennyroyal Karst of Kentucky, James Currens and Randall Paylor, KGS
• Kentucky SPARROW Model and its Applications to Understanding Nutrient Loads, Tanja N. Williamson, USGS Kentucky Water Science Center

Session 1c: Student Research Projects, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• A 3-D Computational Fluid Dynamics Code for Simulation of Pump Stations with Vertical Plunging Jet and Air Bubble Transport, Tien Mun Yee and Scott Yost, Dept of Civil Engineering, UK
• Chemical Evolution of Groundwater in the Wilcox Aquifer of the Mississippi Embayment, Estifanos Haile and Alan Fryar, Dept of Earth and Environmental Sciences, UK
• Sediment Organic Matter Degradation within Storage Zones Deposited In-Stream, Charles Davis and Jimmy Fox, Dept of Civil Engineering, UK
• Effectiveness of Improved Skid Trail Headwater Stream Crossings, Jeffrey Stringer and Christopher Reeves, Dept of Forestry, UK

Session 1b: Education, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Community Based Science, Water Quality and Nonpoint Source Pollution, Carol Hanley and others, Tracy Farmer Center for the Environment, UK
• A Stormwater Education Program to Assist Kentucky’s MS4 Phase II Communities, Yvonne Meichtry and Julie Gee, Kentucky Transportation Cabinet, Frankfort
• Water/Wastewater Technician Training Institute: A Holistic Approach to Developing a Professional Water and Wastewater Workforce, Andrew Ernest, Center for Water Resource Studies, WKU
• Geology for Everyone, New Map Products from the Kentucky Geological Survey, Daniel Carey, KGS

Session 1a: Watersheds, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Cane Run Watershed Assessment and Restoration Project, Steve Higgins and others, Biosystems and Ag Engineering, UK
• Kentucky Institute for Watershed Management Support, Andrew Ernest, Center for Water Resource Studies, WKU
• Watershed Planning Guidebook for Kentucky Communities, Katie Holmes and others, Kentucky Waterways Alliance

Proceedings Of 2008 Kentucky Water Resources Annual Symposium, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

This conference was planned and conducted as part of the state water resources research annual program with the support and collaboration of the Department of the Interior, U.S. Geological Survey and the University of Kentucky Research Foundation, under Grant Agreement Number 06HQGR0087.

The views and conclusions contained in this document and presented at the symposium are those of the abstract authors and presenters and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government or other symposium organizers and sponsors.

Photo Highlights Of The 28th Kentucky Alfalfa Conference, Kentucky Alfalfa Conference

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

Hay Supply, Price And The Future, Tom Keene

Kentucky Alfalfa and Stored Forage Conference

As we prepare for the 2008 hay crop, it’s probably a good time to look back and see what the ’07 crop brought to us and wonder if it will have any bearing on the upcoming 2008 crop.

Alfalfa Hay And Balage: Testing For Quality, Kimberly Field

Kentucky Alfalfa and Stored Forage Conference

Why Test Your Hay?

• By knowing the percentages and protein levels you can increase/decrease the amount of supplements needed from your analysis report and will help the producer set feeding rations
• If you do not know what you have in your forage you are over or under feeding your livestock – therefore affecting the health of your animal and your pocket book

Is There A Benefit To Alfalfa Balage?, Gary Bates

Kentucky Alfalfa and Stored Forage Conference

Making hay in the mid-South has always been a difficult process. High humidity and rainfall often make drying a long, tedious, if not impossible proposition. Over the last few years there has been an increased interest in making round bale silage, or balage, from forage crops. Fermenting alfalfa for storage has several advantages and disadvantages over regular haymaking systems.

Alfalfa: Forage Crop Of The Future, Neal P. Martin, David Mertens, Ronald Hatfield, Hans Jung

Kentucky Alfalfa and Stored Forage Conference

In 2007, U.S. farmers harvested 23.6 million acres of alfalfa. Alfalfa harvested as hay and haylage produced 82.8 million tons valued at approximately $9.4 billion, ranking behind only corn and soybeans. Alfalfa hay supports dairy, beef, sheep, and horse production in the U.S. as well as a growing export market.

National Hay Association President's Perspective: What A Year To Be President, Ron Tombaugh

Kentucky Alfalfa and Stored Forage Conference

Over the years, I have had the opportunity to attend the Kentucky Alfalfa Conference in Cave City. Usually it was combined with a trip to deliver hay into Kentucky to either a dairy, beef, or horse customer. This is an excellent event.

The following is my “acceptance” speech given in September 2007 in Columbus, Ohio, when I was installed as President of the National Hay Association.

Certified Weed Free Hay And Straw Program, Kenny E. Perry

Kentucky Alfalfa and Stored Forage Conference

There is a growing demand in North America for the use of certified weed free hay and straw as a preventative program to limit the spread of noxious weeds. This voluntary certification program is designed to assure that hay and straw sold with proper certification identification meets minimum standards designed to limit the spread of noxious and undesirable weeds. Buyers are provided assurance that hay and straw certified through this program meets these minimum standards.

Alfalfa: Back To Basics, S. Ray Smith, Thomas Adam Probst

Kentucky Alfalfa and Stored Forage Conference

In the past, many university research trials and on-farm demonstrations have determined a range of cutting intervals for alfalfa. Most researchers have agreed that the optimum harvest frequency is about every 35 days to ensure top yields, without sacrificing too much in the way of forage quality and stand persistence. Others use a strategy of harvesting at 10% bloom.

Haymaking: A Trip Down Memory Lane, Garry D. Lacefield, John E. Baylor

Kentucky Alfalfa and Stored Forage Conference

On a hot day in August, I climbed into the dust-free air-conditioned cab of a new tractor to assist in a hay baling demonstration during a field day. Hay yield was low as a result of the drought, so it was important that I get everything from the small windrow. I adjusted the volume on the surround sound stereo where I had just inserted a CD of the Eagles Greatest Hits. Now we’re ready to bale – first let me check the GPS and get a check on the moisture of the hay coming into the bale chamber – moisture …

Foreword And Recipients Of Kentucky Alfalfa Awards [2008], Garry D. Lacefield, Christi L. Forsythe

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

The Expression Of Microrna Mir-107 Decreases Early In Alzheimer's Disease And May Accelerate Disease Progression Through Regulation Of Β-Site Amyloid Precursor Protein-Cleaving Enzyme 1, Wang-Xia Wang, Bernard W. Rajeev, Arnold J. Stromberg, Na Ren, Guiliang Tang, Qingwei Huang, Isidore Rigoutsos, Peter T. Nelson

Sanders-Brown Center on Aging Faculty Publications

MicroRNAs (miRNAs) are small regulatory RNAs that participate in posttranscriptional gene regulation in a sequence-specific manner. However, little is understood about the role(s) of miRNAs in Alzheimer's disease (AD). We used miRNA expression microarrays on RNA extracted from human brain tissue from the University of Kentucky Alzheimer's Disease Center Brain Bank with near-optimal clinicopathological correlation. Cases were separated into four groups: elderly nondemented with negligible AD-type pathology, nondemented with incipient AD pathology, mild cognitive impairment (MCI) with moderate AD pathology, and AD. Among the AD-related miRNA expression changes, miR-107 was exceptional because miR-107 levels decreased significantly even in patients with …