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Articles 1 - 9 of 9
Full-Text Articles in Entire DC Network
Evaluating The Effects Of Modifying Mixing And Pelleting Parameters On Feed Quality, Pellet Production Rate, And Broiler Performance, Lucas E. Knarr
Evaluating The Effects Of Modifying Mixing And Pelleting Parameters On Feed Quality, Pellet Production Rate, And Broiler Performance, Lucas E. Knarr
Graduate Theses, Dissertations, and Problem Reports
In Chapter 2, an experiment was conducted to evaluate the effect of different mixer types (MTY) and mix times (MTI) on mix uniformity (MU). A 2 (mix time) x 3 (mixer type) factorial was utilized in this experiment to create six treatments, each mixed in three randomized complete blocks. Mix times were designated adequate or inadequate, were based on the manufacturers’ recommendation, and varied based on the mixer utilized. The mixer types utilized included a vertical mixer, horizontal mixer, and transfer mixing system. The transfer mixing system can be described as a batch-to-mix system …
The Investigation Of Novel Bovine Oocyte-Specific Long Non-Coding Rnas And Their Roles In Oocyte Maturation And Early Embryonic Development, Jaelyn Zoe Current
The Investigation Of Novel Bovine Oocyte-Specific Long Non-Coding Rnas And Their Roles In Oocyte Maturation And Early Embryonic Development, Jaelyn Zoe Current
Graduate Theses, Dissertations, and Problem Reports
Early embryonic loss is a significant factor in livestock species' infertility, resulting in an economic deficit. In cattle, the in vivo fertilization rate is ~90%, with an average calving rate of about 55%, indicating an embryonic-fetal mortality rate of roughly 35%. Further, 70-80% of total embryonic loss in cattle occurs during the first three weeks after insemination, particularly between days 7-16. Growing evidence indicates that the oocyte plays an active role in regulating critical aspects of the reproductive process required for successful fertilization, embryo development, and pregnancy. However, defining oocyte quality remains enigmatic. Recently, many have abandoned the notion that …
Impacts Of Temperature And Salt Concentrations For Thermal Inactivation Of Salmonella In Moisture Enhanced Reconstructed Chicken Patties, Alik D. Browning
Impacts Of Temperature And Salt Concentrations For Thermal Inactivation Of Salmonella In Moisture Enhanced Reconstructed Chicken Patties, Alik D. Browning
Graduate Theses, Dissertations, and Problem Reports
The purpose of this experiment is to determine the thermal kinetic parameters of Salmonella in moisture-enhanced, reconstructed ground chicken patties as affected by temperatures and salt concentrations. Salmonella is responsible for 35% of the foodborne illnesses associated with poultry products (Batz et al., 2011). Nonintact reconstructed chicken meat is mixed with brine solutions containing various salt and polyphosphate concentrations to increase water-holding capacity, decrease cooking losses, improve sensory tasting scores, and maintain the good quality of completed chicken products (Gill et al., 2004). Increasing salt concentrations within meats can increase the thermal inactivation of pathogens. In this study, Salmonella Typhimurium …
Effects Of Climate Change And Landscape-Scale Forest Management On Avian Communities, Abundance, And Nest Success In The Appalachian Mountains, Hannah L. Clipp
Effects Of Climate Change And Landscape-Scale Forest Management On Avian Communities, Abundance, And Nest Success In The Appalachian Mountains, Hannah L. Clipp
Graduate Theses, Dissertations, and Problem Reports
Birds are integral components of ecosystems and account for billions of dollars in tangible benefits to humans. As such, recent continental declines of bird species have ecological and economic consequences, providing the impetus for my dissertation research. I identified knowledge gaps and proposed novel questions about how birds in the Appalachian Mountains are influenced by changing environmental conditions due to climate change and forest management. The Appalachian Mountains encompass an important biogeographical region with high conservation value due to its myriad habitats and corresponding bird species diversity. Thus, there is a critical need to evaluate the effects of shifting climate …
Rumen And Urine Amine/Phenol-Metabolome Of Beef Steers With Divergent Residual Feed Intake, Taylor S. Sidney
Rumen And Urine Amine/Phenol-Metabolome Of Beef Steers With Divergent Residual Feed Intake, Taylor S. Sidney
Graduate Theses, Dissertations, and Problem Reports
Cattle production is one of the most important agricultural industries in the United States. Despite its overall production efficiency, the industry is facing considerable adversities to its long-term sustainability due to population growth, decreased land availability, and the increase in global warming. Since feed efficiency imposes an immense influence on the cost of production for animals and is a major cost determinant for profitability, the improvement of feed utilization through the understanding of animal-to-animal variation in feed efficiency is pertinent to increase farm productivity and profitability. Residual feed intake (RFI) is a measure of feed efficiency and is defined as …
Cluster Homolog Of Immunoglobulin-Like Receptor Genes In Chicken Immune Responses, Brandi A. Sparling
Cluster Homolog Of Immunoglobulin-Like Receptor Genes In Chicken Immune Responses, Brandi A. Sparling
Graduate Theses, Dissertations, and Problem Reports
This dissertation explores the identity and role of immunoglobulin-like (Ig-like) receptors in chickens, with focus on their implications in disease and disease progression. These receptors, wisely expressed across immune cells, interact with the major histocompatibility complex (MHC) class I molecules to modulate immune responses in mammals. Due to the insufficient representation of chicken Ig-like receptors in online databases, this study systematically annotates the chicken Cluster Homolog of Immunoglobulin-like Receptors (CHIR) genes using advanced bioinformatic techniques, aligning with the release of the 7th edition of the chicken genome assembly that comprises builds for a broiler and layer chicken. The analysis identifies …
Assessing Forest Features And Nocturnal Flying Insect Diversity As Predictors Of Eastern Whip-Poor-Will Occupancy In Foraging Habitat, Clark D. Alexander
Assessing Forest Features And Nocturnal Flying Insect Diversity As Predictors Of Eastern Whip-Poor-Will Occupancy In Foraging Habitat, Clark D. Alexander
Graduate Theses, Dissertations, and Problem Reports
Eastern whip-poor-will (Antrostomus vociferus), an insectivorous caprimulgid, have seen an approximate 2.76% annual population decrease since the 1960s, with their breeding and foraging ecology largely unknown due to their nocturnal and cryptic behavior. I conducted research to assess abiotic and biotic variables correlated with detection, and occupancy probability, and prey species diversity on ~104,000 hectares of forest in West Virginia, owned by the private timber company Weyerhaeuser. Previous literature indicates that Eastern whip-poor-will, and their prey, require ephemeral habitat such as recently cleared and early successional forests, like those historically created by forest fires, wind shears, hurricanes, and …
Detection And Observed Correlations Of Statin And Beta-Blocking Pharmaceuticals In West Virginia Surface Waters And Ichthyofauna, Joseph W. Kingsbury
Detection And Observed Correlations Of Statin And Beta-Blocking Pharmaceuticals In West Virginia Surface Waters And Ichthyofauna, Joseph W. Kingsbury
Graduate Theses, Dissertations, and Problem Reports
Within this thesis the source, presence, and the estimated ecotoxicological effects of cardiovascular medicines, specifically statins and beta-blockers are described within the Buckhannon, Tygart Valley, and West Fork Rivers of West Virginia. Included within this thesis is a general introduction providing key background information and relevant research related to the source, presence, and known toxicity of statins and beta-blockers. Following the general introduction there are 3 distinct chapters. Chapter 1 focuses on the estimated demographic based source loadings and the surface water concentration characteristics of statins and beta-blockers within the three rivers. Chapter 2 investigates the effects of statins and …
Exploring The Biological Basis Of Residual Feed Intake In Beef Cattle Using Multi-Omics Analysis., Godstime Ayobami Taiwo
Exploring The Biological Basis Of Residual Feed Intake In Beef Cattle Using Multi-Omics Analysis., Godstime Ayobami Taiwo
Graduate Theses, Dissertations, and Problem Reports
Efficient feed utilization is critical for both economic sustainability and environmental responsibility in modern livestock production. While there has been extensive research, the multifaceted nature of feed efficiency remains complex, with many biological factors still unexplored. This dissertation examines the physiological foundations of feed efficiency by elucidating some of the complex biological mechanisms associated with residual feed intake (RFI) phenotype in beef cattle, using a range of Omics approaches. We hypothesized that metabolites related to amino acids, carbohydrates, and fatty acids could act as potential biomarkers for RFI. Through a chemical group-based metabolomics method, we identified enriched pathways in feed-efficient …