Browsing ETDs: Virginia Tech Electronic Theses and Dissertations by Author "Abaye, Azenegashe Ozzie"
Now showing items 1-20 of 42
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Alkanes as Internal and External Markers in Horses and the Digestibility of a High Fat Cereal By-Product
(Virginia Tech, 2003-11-13)Determining intake of feeds in horses is an important factor in incorporating supplements in their diets. Fecal recoveries (R), fecal output (FO), dry matter digestibility (DMD) and dry matter intake (DMI) were estimated ... -
Arsenic Adsorption on Iron Oxides in the Presence of Soluble Organic Carbon and the Influence of Arsenic on Radish and Lettuce Development
(Virginia Tech, 2000-12-12)Chapter 2: Germination and Growth of Radish (Raphanus sativus) and Lettuce (Lactuca sativus) Exposed to Arsenite and Arsenate in Hydroponic Growth Solution Little information is available on the survival, uptake, and dry ... -
Assessing the Distribution and Impact of Bean pod mottle virus (BPMV) as a Re-emerging Virus, and Soybean mosaic virus (SMV) in Soybean Grown in Virginia.
(Virginia Tech, 2004-07-12)Bean pod mottle virus (BPMV, Genus Comovirus, Family: Comoviridae)is an important virus in soybean (Glycine max (L.) Merrill), causing quality and yield loss due to seed coat mottling and seed ... -
Assessing the Effect of Nitrogen Sources, Rates and Time of applications on Yield and Quality of Stockpiled Fescue and Tall Fescue Pastures
(Virginia Tech, 2008-08-01)In Virginia, tall fescue [(Schedonorus phoenix (Scop.) Holub,) formally known as Festuca arundinacea L.] can be found on more than 4 million ac of hay and pastureland. Two separate experiments were conducted at three ... -
Assessing the potential of mixed grazing goats with beef cattle to improve animal performance and increase the utilization of marginal pasturelands in the Appalachian coal region
(Virginia Tech, 2008-01-14)Reclaimed coal-mined lands in the Appalachian region can be successful established and utilized for beef cattle production. Currently, these areas are underutilized partly due to an increase in invasive plant species, such ... -
Assessing the Potential Use of Teff as an Alternative Grain Crop in Virginia
(Virginia Tech, 2012-04-27)Teff (Eragrostis tef (Zucc.)) is an annual, warm-season cereal crop most notable for its gluten-free, nutrient-packed seed. Experiments were conducted in two regions of Virginia (Blacksburg and Steeles Tavern) in 2010 and ... -
Assessment of stockpiling methods to increase late summer and early fall forage biomass
(Virginia Tech, 2013-05-06)As one of the major forage crops of the United States management programs to optimize stockpiled tall fescue (Festuca arundinacea Schreb.) can potentially increase livestock profitability. This study consists of two ... -
Benefits of Dung Beetles (Coleoptera: Scarabaeidae) on Nutrient Cycling and Forage Growth in Alpaca Pastures
(Virginia Tech, 2012-02-28)Alpacas have been gaining prominence in the U.S. since the early 1980s. In pastures, dung beetle activity has been shown to enhance the degradation and incorporation of dung into the soil. The benefits of this activity ... -
Circadian and Seasonal Variation in Pasture Nonstructural Carbohydrates and the Physiological Response of Grazing Horses
(Virginia Tech, 2006-12-14)Nonstructural carbohydrates (NSC), which includes sugars, starches and fructans in pasture forages, undergo circadian and seasonal variation which has direct effects on metabolism in grazing horses. Increased intake of NSC ... -
Community Decision Making Aids for Improved Pasture Resources in the Madiama Commune of Mali
(Virginia Tech, 2004-11-29)The lack of forage resources in the Sahelian region of Mali is a major constraint to food production and food sufficiency. Madiama commune is located in northern Mali, in the Niger Delta region. Three separate experiments ... -
Comparison of techniques for estimating pasture herbage mass and productive ground cover for Lakota prairie grass, Kentucky 31 endophyte free tall fescue, Kentucky 31 endophyte infected tall fescue and Quantum 542 tall fescue grazed by stocker steers.
(Virginia Tech, 2006-04-10)In terms of acreage, forage is the number one crop in Virginia. The backbone of these forages has long been tall fescue (Lolium arundinaceum (Schreb.) S.J. Darbyshire). Knowledge of the plant species that make up a pasture ... -
Compatibility, Yield, and Quality of Matua Prairie Grass, Bromus willdenowii (Kunth), with Legumes
(Virginia Tech, 2003-12-08)Matua prairie grass has a potential to extend the grazing season in Virginia due to its higher early spring and fall production. However, little is known about the compatibility of Matua prairie grass with legumes or the ... -
Compensation of Cotton to Square Removal at Various Rates
(Virginia Tech, 2000-04-22)Compensation of Cotton to Square Removal with Different Varieties and Planting Dates Virginia Pitman, Ozzie Abaye, Ames Herbert and Derrick Oosterhuis Abstract Fruit abscission is a natural occurrence in cotton. Fruiting ... -
Conservation agriculture in Senegal: comparing the effects of intercropping and mulching on millet yields
(Virginia Tech, 2015-02-25)Situated on the western edge of Africa's harsh Sahel region, Senegal faces a number of agricultural production constraints. Limited rainfall, poor soil fertility, and insufficient agronomic inputs all contribute to low ... -
Cotton Yield as Related to Selected Physical and Chemical Properties of Soils of the Coastal Plain of Virginia and North Carolina
(Virginia Tech, 1998-08-28)Cotton (Gossipium hiristum, L) is a warm season perennial with indeterminant growth habit. In 1995, 42,500 and 300,000 hectares were grown in Virginia and North Carolina, respectively. Soil physical and chemical properties ... -
Dynamics and Characterization of Soil Organic Matter on Mine Soils 16 Years after Amendment with Topsoil, Sawdust, and Sewage Sludge.
(Virginia Tech, 1999-07-14)DYNAMICS AND CHARACTERIZATION OF SOIL ORGANIC MATTER IN MINE SOILS 16 YEARS AFTER AMENDMENT WITH TOPSOIL, SAWDUST, AND SEWAGE SLUDGE. by Eric S. Bendfeldt Committee Chairman: Dr. James A. Burger Department of Forestry ( ... -
The Effect of Antioxidants on Flaxseed Stability in Yeast Bread
(Virginia Tech, 2005-03-17)The antioxidants BHA, BHT, and ascorbic acid were added to flaxmeal breads to prevent rancidity. Six types of yeast leavened breads were evaluated: control (100% bread flour), flaxmeal (15%) bread, and flaxmeal (15%) bread ... -
The Effect of Three Fescue Types and Lakota Prairie Grass on Copper Status, Dry Matter Intake, and Alkaloid Appearance of Beef Steers
(Virginia Tech, 2006-10-27)Tall fescue [Schedonorus arundinaceus (Schreb.) Dumort.] is an important forage crop in the United States and covers over 14 million ha. The presence of Neotyphodium coenophialum, an endophytic fungus in tall fescue, ...
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Estimating forage mass of tall fescue pastures and dry matter intake and digestibility of fescue forage by beef steers
(Virginia Tech, 2005-01-13)A series of three experiments were conducted to evaluate different methods of estimating forage mass of tall fescue pastures, and dry matter intake and digestibility in beef steers under indoor and grazing conditions. ... -
Evaluation of alternative forage species to reduce risk for cow-calf production systems in the Appalachian region
(Virginia Tech, 2010-11-30)Optimizing forage productivity is essential to reduce pasture seasonality and ensure available forage to meet the nutritional needs of livestock. This study explores the risk-buffering ability of warm-season forages to ...
