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Articles 901 - 930 of 1811

Full-Text Articles in Animal Sciences

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2009, Katherine Mcgraw, Jennie Popp, Wayne Miller Dec 2011

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2009, Katherine Mcgraw, Jennie Popp, Wayne Miller

AAES Research Reports and Research Bulletins

This report is the sixth in a series of reports examining agriculture’s economic contribution on the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economic Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and Minnesota IMPLAN Group, Inc. (MIG), the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2009. Gross Domestic Product (GDP) by State information for Arkansas in 2009 was compared with those of other states in the southeast U.S. to give a measure of the relative importance of agriculture in Arkansas.2 The total …


Review Of Grass: In Search Of Human Habitat. By Joe C. Truett. Foreword By Harry W. Greene., Mary Ann Vinton Oct 2011

Review Of Grass: In Search Of Human Habitat. By Joe C. Truett. Foreword By Harry W. Greene., Mary Ann Vinton

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Much of the book is devoted to discussing the heavy human dependence on grasslands and whether this relationship can be maintained in company with grassland conservation. Can humans continue to use grasslands for food, fiber, and newer uses like biofuels and carbon banking while still sustaining the ecosystem? Many of us in academic ecology struggle with resolving perceived conflicts between conservation and human grassland use. In many cases, a "win-win" scenario exists in which, for example, the proper use of livestock grazing is perfectly compatible with a healthy grassland ecosystem. In other cases, such as conserving prairie dog populations, tensions …


Growing South Dakota (Fall 2011), College Of Agriculture &. Biological Sciences Oct 2011

Growing South Dakota (Fall 2011), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

Page] 2 Adapting for the Future: South Dakota 4-H Efforts Move Forward
[Page] 5 Regional Transitions: Eight Extension Centers to Open in October
[Page] 6 College News [Page] 8 Making a Difference with Research: Ag Experiment Station Aids Industry & Economy
[Page] 10 Pig Potential: South Dakota's Swine Industry Offers Economic Opportunity [Page] 13 New Department Debuts: Natural Resource Disciplines Join Forces
[Page] 14 Autumn in the AIr: Grab Your Blue and Gold and Visit Campus
[Page] 16 iGrow Evolves: Usability And Content Are Being Enhanced
[Page] 18 Collection Effort: Despite Budget Cuts, Private Funds Allowed for Growth [Page] 21 …


Growing South Dakota (Spring 2011), College Of Agriculture &. Biological Sciences Apr 2011

Growing South Dakota (Spring 2011), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Classroom to Careers: An Optimistic Outlook Awaits Ag & Biological Sciences Graduates
[Page] 5 New Opportunities: Intro Ag Courses To Be Offered in Rapid City
[Page] 6 Budget Reality: Funding Cuts Prompt Structure and Staff Changes
[Page] 7 Gearing Up for DakotaFest: Replicated SDSU Campus, Educational Forums and Fundraising Auction Planned
[Page] 8 Continuing a Legacy: &1 Million Livestock Judging Endowment Being Established
[Page] 10 4-H Fun: Unique 4-H Activities Spark Student Interest in Science
[Page] 12 Innovative Outreach: BBQ Boot Camp Connect Consumers to Meat Industry
[Page] 13 College News
[Page] 14 Relevant Research: New, More Efficient …


Controlling Weeds In Horse And Cattle Pastures, Byron Sleugh, Robert Masters Jan 2011

Controlling Weeds In Horse And Cattle Pastures, Byron Sleugh, Robert Masters

Forage Symposium at the Kentucky Cattlemen’s Convention

Weed control is one of the most talked about concerns of forage-animal systems. Producers will sometimes pay more attention to some pests than others and more so in some crops than others. For example, a producer may have a very low threshold for weed infestation in their corn, soybean or tobacco field but will have a very high tolerance for weeds in their pastures. This is usually because the “direct” dollar value of the forage is not seen while we can “see” how a reduction in soybean or corn yield will affect the bottom line of our operation. Vegetation manipulation …


Endophyte In Tall Fescue: Impact On Horses And Cattle, S. Ray Smith, Krista Cotton Jan 2011

Endophyte In Tall Fescue: Impact On Horses And Cattle, S. Ray Smith, Krista Cotton

Forage Symposium at the Kentucky Cattlemen’s Convention

Tall fescue [Lolium arundinaceum (Schreb.) Darbysh.] is an introduced cool-season perennial grass from Europe. Originally imported for regularly flooded pastures, tall fescue is now widespread across the United States due to its adaptability of a wide range of soils and climate. Kentucky 31 tall fescue is the ecotype discovered in 1931 by E.N. Fergus, which launched its popularity as a dependable, adaptable, and palatable pasture crop. In the mid-1970s, the negative effects caused by consuming tall fescue were termed fescue toxicosis. The source of fescue toxicosis was not identified until Charles Bacon first reported evidence of an endophytic fungus …


Strategies For Reducing Losses To Forage Related Disorders, Jeff Lehmkuhler Jan 2011

Strategies For Reducing Losses To Forage Related Disorders, Jeff Lehmkuhler

Forage Symposium at the Kentucky Cattlemen’s Convention

Forage induced disorders are not uncommon. These may be the result of poor harvesting and storage, symbiotic relationships with other organism such as endophtye-infected tall fescue, or environmentally induced. Poisonous plants can also be problematic when they are present in areas where cattle actively graze or forage is harvested. Yet, in many instances, problems are rare and often limited not affecting the entire herd. A primary management strategy is to ensure forage availability is not limiting forcing cattle to consume poisonous plants. Additionally, farming involves a given amount of management in all daily activities and one cannot simply ignore the …


Hay For Horses: Needs And Wants, Laurie Lawrence Jan 2011

Hay For Horses: Needs And Wants, Laurie Lawrence

Forage Symposium at the Kentucky Cattlemen’s Convention

Hay producers have to satisfy two types of clients, horses and humans. Horses need clean hay that has a nutritional value that is appropriate for the requirements of the horse. Clients want hay that IS consistent, convenient and cost effective. So, in many cases the “needs” of the horse and “wants” of the human are not exactly the same.


Forages: Back To Basics, Garry D. Lacefield Jan 2011

Forages: Back To Basics, Garry D. Lacefield

Forage Symposium at the Kentucky Cattlemen’s Convention

Over the past fifteen years, we have covered many forage-related topics ranging from the species we grow through marketing our final products. Through all of these themes, we have attempted to address the “basics” in a practical way. We will continue that theme today as we deal with some very important-practical topics.


Foreword [2011], Garry D. Lacefield, Christi L. Forsythe Jan 2011

Foreword [2011], Garry D. Lacefield, Christi L. Forsythe

Forage Symposium at the Kentucky Cattlemen’s Convention

No abstract provided.


Temperature Increase Effects On Sagebrush Ecosystem Forbs: Exprimental Evidence And Range Manager Perspectives, Hilary Louise Whitcomb Jan 2011

Temperature Increase Effects On Sagebrush Ecosystem Forbs: Exprimental Evidence And Range Manager Perspectives, Hilary Louise Whitcomb

Green Canyon Environmental Research Area, Logan Utah

No abstract provided.


Biology Department Newsletter, No.1, Sacred Heart University Jan 2011

Biology Department Newsletter, No.1, Sacred Heart University

Biology Newsletter

No abstract provided.


Contents, Discovery Editors Jan 2011

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 12 2011, Several Authors Jan 2011

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 12 2011, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Letter From The Dean, Michael Vayda Jan 2011

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Instructions For Authors, Discovery Editors Jan 2011

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Growing South Dakota (Winter 2011), College Of Agriculture &. Biological Sciences Jan 2011

Growing South Dakota (Winter 2011), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Introducing iGrow: New Web Portal Brings Information To One Location
[Page] 4 Crops, Cattle & Much More: Opportunities Farm Cultivates Research, Teaching And Scholarships
[Page] 7 College News
[Page] 8 Funding Fundamentals: Budget Cuts Have Far-Reaching Impact
[Page] 10 The Value Extension: Three Producers Share How They've Benefited [Page] 12 A Vision for Precision: Gregg Carlson Has Helped Guide Agronomy
[Page] 13 A Boost for Beginning Beef Producers: Training Program Offered Through USDA Grant
[Page] 14 Ethanol's Evolution: Promising New Research Goes Beyond Corn
[Page] 16 New Era for Cereal Grains: Seed Technology Lab Inspires Innovation
[Page] 18 …


Construction Of A Ssr-Based Genetic Map And Identification Of Qtl For Domestication Traits Using Recombinant Inbred Lines From A Cross Between Wild And Cultivated Cowpea (V. Unguiculata (L.) Walp.), Mebeaselassie Andargie, Remy S. Pasquet, Bhavani S. Gowda, Geoffrey M. Muluvi, Michael P. Timko Jan 2011

Construction Of A Ssr-Based Genetic Map And Identification Of Qtl For Domestication Traits Using Recombinant Inbred Lines From A Cross Between Wild And Cultivated Cowpea (V. Unguiculata (L.) Walp.), Mebeaselassie Andargie, Remy S. Pasquet, Bhavani S. Gowda, Geoffrey M. Muluvi, Michael P. Timko

All Peer-Reviewed Publications

Cowpea (Vigna unguiculata (L.) Walp.) is a grain legume commonly grown and consumed in many parts of the tropics and subtropics. A genetic linkage map was constructed using simple sequence repeat (SSR) markers and a recombinant inbred (RI) population of159 individuals derived from a cross between the breeding line 524B, a California Blackeye, and 219-01, a perennial wild cowpea from Kenya. Out of 912 primer combinations predicted to amplify SSRs in cowpea, 639 reliably produced amplification products in PCR assays and 202 (31.6%) were polymorphic between the two parents. These polymorphic SSRs were used to construct a genetic map consisting …


Western Australia's Biosecurity, Department Of Agriculture And Food, Western Australia, Department Of Environment And Conservation, Western Australia, Department Of Fisheries, Western Australia, Forest Products Commission, Western Australia Jan 2011

Western Australia's Biosecurity, Department Of Agriculture And Food, Western Australia, Department Of Environment And Conservation, Western Australia, Department Of Fisheries, Western Australia, Forest Products Commission, Western Australia

Biosecurity published reports

Biosecurity is the protection of the economy, environment and human health from the negative impacts of pests, weeds and diseases, including the management of invasive species if they become established (definition adopted by AusBIOSEC).

This requires steps to prevent the entry of harmful organisms, as well as the timely and efficient management of them if they do enter.

Biosecurity threats range from catastrophic diseases such as Foot and Mouth Disease, which causes rapid and widespread animal deaths, to more subtle and slower spreading problems such as invasive weeds, mussels that foul vessel hulls and fungus-induced dieback disease of trees. These …


Ua66/5/1 Ogden College Of Science & Engineering Agriculture Student Organizations, Wku Archives Dec 2010

Ua66/5/1 Ogden College Of Science & Engineering Agriculture Student Organizations, Wku Archives

WKU Archives Collection Inventories

Records created by and about Agriculture student organizations including:

  • Block & Bridle Club
  • Cherry Country Life Club
  • WKU Equestrian Team


Invasive Species And Climate Change, Invasive Species Advisory Committee Dec 2010

Invasive Species And Climate Change, Invasive Species Advisory Committee

National Invasive Species Council

ISSUE

Climate change interacts with and can often amplify the negative impacts of invasive species. These interactions are not fully appreciated or understood. They can result in threats to critical ecosystem functions on which our food system and other essential provisions and services depend as well as increase threats to human health. The Invasive Species Advisory Committee to the National Invasive Species Council recognizes the Administration’s commitment to dealing proactively with global climate change. However, unless we recognize and act on the impact of climate change and its interaction with ecosystems and invasive species, we will fall further behind in …


Is Orthoptera Abundance And Distribution Across A Small Grassland Area Affected By Plant Biomass, Plant Species Richness, And Plant Quality?, Caitlin Falcone Dec 2010

Is Orthoptera Abundance And Distribution Across A Small Grassland Area Affected By Plant Biomass, Plant Species Richness, And Plant Quality?, Caitlin Falcone

Department of Environmental Studies: Undergraduate Student Theses

The choice of a specific microhabitat represents a compromise among a number of different factors organisms use to monitor habitat suitability. Grassland vegetation structure can vary widely along environmental gradients over a relatively small area. This vegetation structure can have a large influence on habitat selection by grasshoppers (Orthoptera). However, it is not clear which vegetation characteristics are most important in determining grasshopper abundance. We found that plant biomass, plant species richness, and plant quality all have an effect on grasshopper abundance and distribution. We observe that these affects vary both within and among the two years of data collection. …


Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2008, Jennie Popp, Nathan Kemper, Wayne Miller, Katherine Mcgraw, Kyle Karr Nov 2010

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2008, Jennie Popp, Nathan Kemper, Wayne Miller, Katherine Mcgraw, Kyle Karr

AAES Research Reports and Research Bulletins

This report is the fifth in a series of reports examining agriculture’s economic contribution to the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economics Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and Minnesota IMPLAN Group, Inc. (MIG), the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2008. Gross Domestic Product (GDP) by State information for Arkansas was compared with those of other states in the southeast U.S. to give a measure of the relative importance of agriculture in Arkansas.2 The total economic contribution …


Report On Phosphorus And Potassium Experiments Conducted On Partner Farms Of The Greener Pastures Project, Mike Bolland, Ian Guthridge, Graham Blincow, Peter Needs Oct 2010

Report On Phosphorus And Potassium Experiments Conducted On Partner Farms Of The Greener Pastures Project, Mike Bolland, Ian Guthridge, Graham Blincow, Peter Needs

Bulletins 4000 -

Dairy production in south-western Australia occurs predominantly on sandy soils in the greater than 800 mm annual average rainfall areas of the region. The climate is Mediterranean-type, typically with cool, wet May-October growing seasons and hot, dry November-April. Most dairy pastures are rain-fed and comprise the annual species Subterranean Clover (clover, Trifolium subterraneum L.), Annual Ryegrass (Lolium rigidum Gaud.) and Italian Ryegrass (L. multiflorum Lam.).

Paddock grown pasture is the cheapest source of feed for dairy production in the region (Dilley and Howes 1998). To remain profitable in the face of diminishing returns, dairy farmers have modified their grazing management …


Growing South Dakota (Fall 2010), College Of Agriculture &. Biological Sciences Oct 2010

Growing South Dakota (Fall 2010), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Focused on Lean Growth: Despite Challenging Times, Dean Barry Dunn Has a Vision of Growth and Excellence for ABS
[Page] 6 Building Better Communities: Horizons Helps Small Town South Dakota
[Page] 8 On Campus
[Page] 9 Urban Opportunities: A New Twist to Attract Urban Youth
[Page] 10 Saddle Up: Steers for State Helps SDSU Rodeo Program Attain Success [Page] 12 Inspiring Students: This Professor's Teaching & Research Style Is Earning Awards and Student Accolades
[Page] 14 Fish Feed :The Newest Market for South Dakota Crops 15 College News [Page] 16 Field Notes from Lyman County: Bob Fanning's Experience …


Invasive Species And Public Investment In The Green Economy, Invasive Species Advisory Committee Jun 2010

Invasive Species And Public Investment In The Green Economy, Invasive Species Advisory Committee

National Invasive Species Council

Invasive Species and Public Investment in the Green Economy, approved by ISAC on June 24, 2010

ISSUE

Invasive species are intricately linked to the economy. Trade, travel, and transport facilitate their spread. Invasive species management requires extensive human and financial resources. The impacts of invasive species can substantially undermine economic growth and sustainable development. United States Executive Order (EO) 13112 defines invasive species as “alien [non-native] species whose introduction does or is likely to cause economic or environmental harm or harm to human health” and states that Federal agencies should …“not authorize, fund, or carry out actions that are likely …


Marine Bioinvasions And Climate Change, James T. Carlton, Sandra C. Lindstrom, Celia M. Smith, Jennifer E. Smith Jun 2010

Marine Bioinvasions And Climate Change, James T. Carlton, Sandra C. Lindstrom, Celia M. Smith, Jennifer E. Smith

National Invasive Species Council

BACKGROUND

Invasive species are second only to habitat destruction as the greatest cause of species endangerment and global biodiversity loss. Invasive species can cause severe and permanent damage to the ecosystems they invade. Consequences of invasion include competition with or predation upon native species, hybridization, carrying or supporting harmful pathogens and parasites that may affect wildlife and human health, disturbing ecosystem function through alteration of food webs and nutrient recycling rates, acting as ecosystem engineers and altering habitat structure, and degradation of the aesthetic quality of our natural resources. In many cases we may not fully know the native animals …


Poisonous Rangeland Plants In San Luis Obispo County, Sara Litten, Amanda Ou Jun 2010

Poisonous Rangeland Plants In San Luis Obispo County, Sara Litten, Amanda Ou

Animal Science

Poisonous Rangeland Plants in San Luis Obispo County is a comprehensive educational guide to rangeland plants that are toxic to domestic livestock. This guide begins with an exploration of how the biological systems are affected by the poisonous plant toxins. The biochemistry behind these toxins is included in the discussion. Next, reference material for fourteen plants that inhabit San Luis Obispo County is provided. This information includes specific toxins found in poisonous plants, affected animals, symptoms of poisoning, stages of growth, lethal dose, and distribution of the plant in California. This section of the guide is filled with helpful photos …


Comparative Performance Of Fluorometry And High Performance Liquid Chromatography In The Detection Of Aflatoxin M1 In Two Commercial Cheeses, Gustavo Peña May 2010

Comparative Performance Of Fluorometry And High Performance Liquid Chromatography In The Detection Of Aflatoxin M1 In Two Commercial Cheeses, Gustavo Peña

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Aflatoxin M1 (AFM1) is frequently found in milk and dairy products. It is a metabolite formed in cows from aflatoxin B1 (AFB1), contained in animal feeds. In cheese production AFM1 distributes between curds and whey. In this study, cows were fed 64 µg/AFB1/d for the high treatment, and 5 µg/AFB1/d for the low treatment, to obtain milk contaminated with AFM1 over the 0.5 µg/L and under 0.05 µg/L restrictions, respectively. Cheese was manufactured with milk contaminated with AFM1 at 0.8 and 0.03 ìg/kg by the higher and lower …


The Loss Of Species: Mangrove Extinction Risk And Geographic Areas Of Global Concern, Beth A. Polidoro, Kent E. Carpenter, Lorna Collins, Norman C. Duke, Aaron M. Ellison, Joanna C. Ellison, Elizabeth J. Farnsworth, Edwino S. Fernando, Kandasamy Kathiresan, Nico E. Koedam, Suzanne R. Livingstone, Toyohiko Miyagi, Gregg E. Moore, Vien Ngoc Nam, Jin Eong Ong, Jurgenne H. Primavera, Serverino G. Salmo, Jonnell C. Sanciango, Sukristijono Sukardjo, Yamin Wang, Jean Wan Hong Yong Apr 2010

The Loss Of Species: Mangrove Extinction Risk And Geographic Areas Of Global Concern, Beth A. Polidoro, Kent E. Carpenter, Lorna Collins, Norman C. Duke, Aaron M. Ellison, Joanna C. Ellison, Elizabeth J. Farnsworth, Edwino S. Fernando, Kandasamy Kathiresan, Nico E. Koedam, Suzanne R. Livingstone, Toyohiko Miyagi, Gregg E. Moore, Vien Ngoc Nam, Jin Eong Ong, Jurgenne H. Primavera, Serverino G. Salmo, Jonnell C. Sanciango, Sukristijono Sukardjo, Yamin Wang, Jean Wan Hong Yong

Biological Sciences Faculty Publications

Mangrove species are uniquely adapted to tropical and subtropical coasts, and although relatively low in number of species, mangrove forests provide at least US $1.6 billion each year in ecosystem services and support coastal livelihoods worldwide. Globally, mangrove areas are declining rapidly as they are cleared for coastal development and aquaculture and logged for timber and fuel production. Little is known about the effects of mangrove area loss on individual mangrove species and local or regional populations. To address this gap, species-specific information on global distribution, population status, life history traits, and major threats were compiled for each of the …