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Mineral Supplements And Feed Additives--Can They Eliminate Fescue Toxicity?, John Thomas Johns

Kentucky Grazing Conference

Fescue is the predominate cool season grass in much of the United States due to its wide adaptation and hardiness. Many of these acres however, contain an endophytic fungus resulting in production of toxins with negative effects on grazing cattle. The two primary responses in beef cattle are an increase in core body temperature and a decrease in dry matter intake. As a result, decreases in reproductive rates, milk production, weaning weights and ADG are seen (Tables 1 and 2). Many approaches to pasture management have been advocated to overcome or minimize the problem such as incorporation of legumes, rotational …

Developing Watering Systems For Efficient Grazing, Kevin Laurent

Kentucky Grazing Conference

Whether you call it rotational grazing, intensive grazing or management intensive grazing, the economic benefits of controlling how and where your cattle graze are well documented. Increased forage utilization, greater stocking rates, greater legume persistence, reduced hay feeding and more uniform nutrient recycling are just some of the many benefits producers can take advantage of when practicing some form of controlled grazing. However, one of the greatest challenges to implementing a controlled grazing system is the delivery of stock water to the grazing animal.

Grazing Programs: Environmentally Friendly, Economically Sound And Agronomically Feasible, Sid Brantly

Kentucky Grazing Conference

The environmental soundness of our farms is the greatest, long term asset that farmers have. The topsoil, the trees, the cattle, the grass and crops on your farm are like unto a great financial account...and you are the banker. You make the decisions to: A) Use it all up now, B) Lock it away for someone in the future to make the decisions, or C) Utilize wisely in such a way that it is managed for financial success today, and still builds momentum for your future as well as your descendents.

Animal Behavior: Impacts On Grazing, Mark Kennedy

Kentucky Grazing Conference

I am not an expert on this subject and give all credit for my limited understanding of this subject to Dr. Fred Provenza, Utah State University; Katy Voth, Livestock for Landscapes, LLC; Jim Gerrish and others. I have tried to put into practice, both personally and with other producers, many of these principles to aid in improved grazing management. This presentation will address only 2 aspects of animal behavior; 1) How animal behavior impacts grazing distribution and forage utilization over the landscape, and 2) How animal behavior affects diet selection.

Growing Forage Crops For Wildlife, Don Ball

Kentucky Grazing Conference

Numerous forage crops adapted in the Southeast offer benefits in production of various domestic animals including beef and dairy cattle, horses, and sheep (Ball, et al., 2002). Many of the same attributes these plants offer when grown in connection with livestock enterprises are also valuable in wildlife settings. Furthermore, the attitudes of many wildlife managers are changing, and their desire for knowledge of forage crops is on the rise. Consequently, forage crops are becoming more important and more greatly appreciated by wildlife enthusiasts within our region.

Maximizing Production Of Beef Cattle On Pastures, Justin Sexten

Kentucky Grazing Conference

Standardized performance analysis (SPA) of beef cattle operations continues to demonstrate the importance of reducing feed related costs. As producers look for alternative methods to reduce feed costs the benefits of improved forage management become increasingly important due to the opportunity to reduce feed costs while improving animal performance. One note of caution related to maximizing beef production from pasture, maximizing anything must be done carefully, the difference between maximum success and a total disaster is a fine line.

Grazing Program For Goats, Greg Brann

Kentucky Grazing Conference

Goats are often referred to as four legged bush hogs and actually they perform best when consuming browse. Goats eat from the top down so fields have a mown appearance even when forage is three feet tall. The typical browse height for goats is up to four foot however, they will rise up on their hind legs and sometimes prop on others backs to reach higher. Goats have an affinity for high quality forage. Much of the vegetation we have considered weeds as beef producers is excellent forage for goats. Goats select the high quality leaves and tender growing tips …

From Traditional Confinement Dairying To Grazing Replacement Heifers, Bill Payne

Kentucky Grazing Conference

I would like to share an account of a transition from a conventional dairy operation to our current Management Intensive Grazing (MIG) enterprise. In 1974, I joined my father who at that time had been dairying on a 265 acre farm in Lincoln County, Kentucky for twenty five years. We fed our registered Holsteins corn silage and alfalfa haylage and purchased a manufactured feed. Our herd of 70 Holsteins spent most of their time on concrete. We did make an effort to allow access to an exercise lot when weather permitted. However, during the greater part of the 1990’s we …

Pastures For Horses: Challenges And Opportunities, Robert Coleman

Kentucky Grazing Conference

Horses were born to eat grass and how they evolved has allowed them to be efficient users of a high forage diet. In fact, for many of today’s horses, they will survive and thrive on an all forage diet.

Can We Graze Year-Around In The Heart Of America, Edward N. Ballard

Kentucky Grazing Conference

Feed costs represent the major cost in most livestock production systems. A recently completed analysis of 225 Standardized Performance Analysis (SPA) Beef Cow Records on herds in Illinois and Iowa showed that feed cost was the overriding factor determining profitability, explaining over 57 percent of the herd-to-herd variation. Typically the cost of supplying nutrients to ruminant livestock is much greater using harvested feedstuffs as opposed to grazing pastures or crop residues. The primary function of a grassland farm is to convert solar energy to marketable livestock products in the most efficient manner. The fewer steps between the animal product and …

Foreword And Conference Information [2006], Garry D. Lacefield, Christi L. Forsythe

Kentucky Grazing Conference

No abstract provided.

Applying Reflection Tomography In The Postmigration Domain To Multifold Ground-Penetrating Radar Data, John H. Bradford

CGISS Publications and Presentations

Acquisition and processing of multifold ground-penetrating radar (GPR) data enable detailed measurements of lateral velocity variability. The velocities constrain interpretation of subsurface materials and lead to significant improvement in image accuracy when coupled with prestack depth migration (PSDM). Reflection tomography in the postmigration domain was introduced in the early 1990s for velocity estimation in seismic reflection. This robust, accurate method is directly applicable in multifold GPR imaging. At a contaminated waste facility within the U.S. Department of Energy’s Hanford site in Washington, the method is used to identify significant lateral and vertical velocity heterogeneity associated with infilled waste pits. Using …

Effects Of Carbonation On The Mineral Composition Of Cement Kiln Dust, Cecilia P. Anderson

Dissertations, Master's Theses and Master's Reports - Open

Due to their relatively high calcium oxide content, industrial mineral oxide wastes are potential candidates for mineral sequestration of carbon dioxide (CO₂). Cement kiln dust (CKD), a byproduct of cement manufacturing contains 20-60% CaO making it a possible candidate for CO₂ sequestration. In this study, three types of CKD are characterized, before and after carbonation, using environmental scanning electron microscopy and energy dispersive x-ray microanalysis to determine the mineralogical and morphological changes occurring due to carbonation. The reactants, products, and precipitation mechanisms were investigated to enhance understanding of the governing processes and allow better utilization of CKD …

On-Farm Field Research: Replicating Your Valid Comparison, John H. Grove

Soil Science News and Views

On-farm research is motivated by a desire to learn more about a product/practice/system on land you manage. You may now have the tools (yield monitor, weighing grain cart, etc.) to accomplish on-farm research that generates information you can use in management decision-making. Your on-farm research should start with the design of a ''valid comparison", according to your research objective (Soil Science News & Views 26:01).

Paleontology Of The Coastal Plain Province., David R. Schwimmer

Faculty Bibliography

No abstract provided.

Guide To Participation For The Andrill Mcmurdo Ice Shelf Project, Andrill Science Management Office, Mcmurdo-Andrill Science Implementation Committee

ANDRILL Project Information

Purpose of This Document

This document is a guide to participation for science team members involved in the McMurdo Ice Shelf (MIS) Project of the ANDRILL Program. The document provides the following information: 1) An overview of the ANtarctic geologic DRILLing (ANDRILL) Program; 2) An overview of expected individual involvement in and commitment to the MIS Project; and 3) Logistical information most relevant to on-ice participants. Information provided in this document will be supplemented by the publication of the MIS Science and Logistics Implementation Plan (SLIP).The SLIP will be available to all MIS ANDRILL participants prior to commencement of drilling. …

Scientific Logistics Implementation Plan For The Andrill Mcmurdo Ice Shelf Project, Timothy R. Naish, Richard H. Levy, Ross D. Powell, Mis Science And Operations Team Members

ANDRILL Project Information

Summary

Response of Antarctic ice sheets to projected greenhouse warming of up to 5.8°C by the end of the century is unknown. Models on which predictions are based need to be constrained by geological proxy data from the ancient ice sheets during times when Earth is known to have been warmer than today. The marine-based West Antarctic Ice Sheet (WAIS) and its fringing ice shelves are hypothesized (Clark et al., 2002; Weaver et al., 2003; Stocker, 2003) and documented (Scherer et al., 1998) to have collapsed during past “super-interglacial” warm extremes when global sea-level was more than 5m higher than …

Optimal Management Of Groundwater Over Space And Time, Nicholas Brozovic, David L. Sunding, David Zilberman

Daugherty Water for Food Global Institute: Faculty Publications

For nearly half a century, groundwater has been portrayed in the economic literature as a typical common property resource. Numerous studies of groundwater extraction have analyzed the externalities imposed by users on each other. A large body of work offers clear prescriptions in the form of optimal policy instruments, and a similarly large body of work advocates the needlessness of any centralized intervention. Yet existing theoretical models of groundwater extraction implicitly make two strong assumptions about the underlying behavior of the resource. First, the spatial distribution of resource users is assumed to be irrelevant. Second, path-independence of the resource is …

Sorption-Desorption Of Imidacloprid And Its Metabolites In Soil And Vadose Zone Materials, Sharon V. Papiernik, William C. Koskinen, Lucia Cox, Pamela J. Rice, Sharon A. Clay, Nancy R. Werdin-Pfisterer, Kristen A. Norberg

Agronomy, Horticulture and Plant Science Faculty Publications

Sorption-desorption is one of the most important processes affecting the leaching of pesticides through soil because it controls the amount of pesticide available for transport. Subsurface soil properties can significantly affect pesticide transport and the potential for groundwater contamination. This research characterized the sorption-desorption of imidacloprid (1-[(6-chloro-3-pyridinyl)-methyl]-Nnitro-2-imidazolidinimine) and three of its metabolites, 1-[(6-chloro-3-pyridinyl)methyl]-2-imidazolidinone (imidacloprid-urea), 1-[(6-chloro-3-pyridinyl)methyl]-4,5-dihydro-1H-imidazol-2-amine (imidaclopridguanidine), and 1-[(6-chloro-3-pyridinyl)methyl]-1H-imidazol-2-amine (imidacloprid-guanidine-olefin), as a function of changing soil properties with depth in two profiles extending from the surface to a depth of 1.8 or 8 m. Sorption of each compound was highly variable and hysteretic in all cases. Normalizing the sorption coefficients (Kf) …

Promoting Low Impact Development In Your Community, New England Environmental Finance Center

Planning

Low Impact Development (LID) is an approach to stormwater management and site development that is gaining popularity throughout the country. Its attractiveness lies in its potential to lessen off-site stormwater impacts, reduce costs to municipalities and developers, and promote development that is “softer on the land” compared with typical traditional development. The approach, which is applicable to residential, commercial and industrial projects, and in urban, suburban and rural settings, often is linked with efforts by governments and citizens to foster more sustainable communities.

The Abundance Of Different Dragonfly Species At Furman Lake - 2006, Wade Worthen

Furman Lake Restoration Book Gallery

A line graph showing the abundance of fifteen different species of dragonflies spotted over a five month period at Furman Lake in 2006.

Bedrock And Surficial Geologic Map Of The Red Rock 7.5’ Quadrangle, Beaverhead County, Southwestern Montana, Daryn Reyman-Lock, Christine A. Regalla, David J. Anastasio, Frank J. Pazzaglia

History Faculty Publications

The Red Rock 7.5 minute quadrangle, located in Beaverhead County, southwestern Montana, spans the Red Rock River Valley, an extensional graben formed between the Tendoy mountain front and the western flank of the Blacktail-Snowcrest uplift (Fig. 1). Notable landmarks within the quadrangle include the Clark Canyon Reservoir (Bureau of Reclamation dam number MT00569) located in the northwest area of the quadrangle and Interstate 15 which runs northwest-southeast through the quadrangle. The highest elevations in the map area are located within the Tendoy Mountains and the Red Rock Hills and are underlain by Paleozoic and Cenozoic bedrock. From these points, broad …

Theoretical Derivation Of Stable And Nonisotopic Approaches For Assessing Soil Organic Carbon Turnover, D. E. Clay, C. G. Carlson, S. A. Clay, C. Reese, Z. Liu, J. Chang, M. M. Ellsbury

Agronomy, Horticulture and Plant Science Faculty Publications

Techniques for measuring soil organic C (SOC) turnover in production fields are needed. The objectives of this study were to propose and test nonisotopic and 13 C stable isotopic techniques for assessing SOC turnover. Based on SOC equilibrium and mass balance relationships, an equation was derived: NHC/SOC initial=[1/(SOC× k NHC)](dSOC/dt)+ k SOC/k NHC, where dSOC/dt is the annual change in SOC, NHC is nonharvested C returned to soil, k SOC is the annual mineralization rate of SOC, and k NHC is the annual mineralization rate of NHC. This equation was used to calculate maintenance rates. An isotopic approach based on …

Surface Water Assessment For The Buntine-Marchagee Recovery Catchment, R Short, P Whale, D Farmer, N Coles

Resource management technical reports

No abstract provided.

Seeing Through The Noise: Seismic Reflection Profiling In Urban Areas, Lee M. Liberty, Thomas L. Pratt, Scott S. Hess

CGISS Publications and Presentations

Studies for urban hazard or resource assessment often take place in densely populated areas characterized by considerable cultural noise. These site conditions can severely compromise seismic reflection data quality. We have collected vibroseis and hammer (weight drop) seismic reflection data in a range of geologic conditions to image stratigraphy and structures in the upper one km along regional highways, city streets,and power line access roads. In addition to the challenges of safety and outreach, acquisition efforts along busy streets and highways often encounter poor receiver coupling and large-amplitude coherent noise from traffic and power lines. Although higher quality seismic reflection …

Evaluation Of Cauliflower And Broccoli Varieties: Summer Planting (November 2005 - February 2006), Department Of Food And Agriculture, Western Australia

Horticulture research reports

This document has been prepared from a cauliflower and broccoli variety evaluation trial conducted at the Manjimup Horticultural Research Institute, South Western Highway, Manjimup WA 6258. The results reflect the growth characteristics, yield, quality and density of the cauliflower and broccoli varieties as recorded at this site during the conditions of the growing period (November 2005 to February 2006).

This report is the first in a series of four produced from the evaluation of cauliflower and broccoli varieties conducted at the Manjimup Horticultural Research Institute.

The results are provided to allow seed suppliers, seedling nurseries, producers, packers and marketers to …

Facilitating The Development Of The Strawberry Industry In Western Australia, Dennis Phillips, Aileen Reid

Horticulture research reports

Horticulture Australia Project No. BS05001 Annual report 2005/06

This is the first of three annual reports for the Horticulture Australia project BS05001 — ‘Facilitating the development of the strawberry industry in Western Australia’. This project is managed by the Strawberry Growers Association of WA Inc. and the work is being done in collaboration with the Department of Agriculture and Food WA (DAFWA). The project has been funded by voluntary contributions from the W.A. Strawberry Producers Committee, Toolangi Strawberry Runner Growers Co-operative and DAFWA with matching funding from Horticulture Australia Ltd (HAL). The project has been funded for three years, 2005, …

The Climate Of Hays, Kansas, From 1867 To 1999: Variability, Trends, And Influences, John Heinrichs

Fort Hays Studies Series

Data for a number of possible regional and global climate influences were compared with Hays climate data to characterize the relationships. The analysis of possible influences on Hays climate provided a rich and complex pattern of relationships.

Cave Levels, Marine Terraces, Paleoshorelines, And The Water Table In Peninsular Florida, Lee J. Florea, H L. Vacher

Earth, Environmental, and Atmospheric Sciences Faculty Publications

Levels of passages are a common feature of many cave systems around the world. Likewise, coastal and marine terraces are common in coastal plain settings. This paper extends the discussion of cave levels from traditional research sites in the interior lowlands of the United States to the Atlantic Coastal Plains, namely peninsular Florida. Are there levels in Florida caves, and is there a link between the elevation of cave levels, marine terraces, paleoshorelines, and thus the water table, above and below present sea level in peninsular Florida?

Crosshole Radar Tomography In An Alluvial Aquifer Nearboise, Idaho, William P. Clement, Warren Barrash

CGISS Publications and Presentations

To determine the distribution of heterogeneities in an unconfined aquifer in Boise, ID, we compute radar tomograms for three adjacent well pairs. The fluvial deposits consist of unconsolidated cobbles and sands. We used a curved‐ray, finite‐difference approximation to the eikonal equation to generate the forward model. The inversion uses a linearized, iterative scheme to determine the slowness distribution from the first arrival traveltimes. The tomograms consist of a sequence of layers representing the saturated aquifer. The velocities in this saturated zone range between 0.06 to 0.10 m/ns. We use a variety of methods to assess the reliability of our velocity …