Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Cyrtonyx montezumae (3)
- Montezuma quail (3)
- Arizona (2)
- New Mexico (2)
- Rumen (2)
-
- Abundance (1)
- Antibody (1)
- Appalachian forests (1)
- Bacteria (1)
- Beef (1)
- Beef reproduction (1)
- Bovine respiratory disease (1)
- Breeding season (1)
- Catecholamines (1)
- Cattle (1)
- Conservation (1)
- Contamination (1)
- Corn (1)
- Dairy cow (1)
- Darters (1)
- ELONA (1)
- Economics (1)
- Emulating natural disturbances (1)
- Forages (1)
- Foraging (1)
- Geolocators (1)
- Living mulch (1)
- Locked nucleic acid (1)
- Magnetic bead (1)
- Metabolomics (1)
- Publication
- Publication Type
Articles 1 - 14 of 14
Full-Text Articles in Life Sciences
Rumen Biogeographical Regions And Their Impact On Microbial And Metabolome Variation, Macey P. Soltis
Rumen Biogeographical Regions And Their Impact On Microbial And Metabolome Variation, Macey P. Soltis
Masters Theses
The rumen microbiome is a complex microbial network critical to the health and nutrition of its host, due to their inherent ability to convert low-quality feedstuffs into energy. In rumen microbiome studies, the ventral sac is sampled from due to ease of access and repeatability. However, anatomical musculature demarcates the rumen into five sacs which may support distinct microbial communities. The distinction among the microbes may generate functional variation among the rumen microbiome, thus, specialized tasks within different sacs. The objective of this study was to determine the rumen liquid metabolome and epimural, planktonic, and fiber-adherent bacterial communities among each …
Staphylococcal Surface Proteins As Vaccine Candidates For The Control Of Staphylococcal Mastitis In Dairy Cows, Jessica Jean Vidlund
Staphylococcal Surface Proteins As Vaccine Candidates For The Control Of Staphylococcal Mastitis In Dairy Cows, Jessica Jean Vidlund
Masters Theses
Bovine mastitis, an inflammation of the mammary gland, is the single most costly disease of dairy cattle. Staphylococci, a major bacteria that cause bovine mastitis, are commonly divided into two major groups: Staphylococcus aureus and non-aureus staphylococci (NAS), previously known as coagulase-negative Staphylococcus species (CNS). Current mastitis control programs are not fully effective against staphylococcal mastitis and antibiotics are not sustainable due to limited success and the emergence of antimicrobial resistant bacteria. Non-antibiotic sustainable control tools, such as effective vaccines, are critically needed. Our lab developed and evaluated Staphylococcus aureus surface associated protein (SASP) and Staphylococcus chromogenes surface associated protein …
Predicting Immunization Status At Arrival In Tennessee Stocker Calves, Claire E. Hunkler
Predicting Immunization Status At Arrival In Tennessee Stocker Calves, Claire E. Hunkler
Masters Theses
Bovine respiratory disease is a multifaceted disease with agent, host, and environmental factors. Stocker calves are at high risk of contracting the disease through many stressors like weaning, transportation, commingling, etc. The purpose of this project was to test if externally observed physical characteristics of calves on arrival at a stocker facility can be used to predict calfhood vaccination status determined based on antibody titer levels. Knowledge of highly correlated characteristics could allow stocker operators to reduce the occurrence of BRD through targeted management strategies, thus lowering morbidity, mortality, and treatment costs. Ear notches, blood, and visual characteristics were collected …
Winter Diet Of Montezuma Quail In Arizona And New Mexico, Oscar E. López-Bujanda, Alberto Macías-Duarte, Reyna A. Castillo-Gámez, Angel B. Montoya
Winter Diet Of Montezuma Quail In Arizona And New Mexico, Oscar E. López-Bujanda, Alberto Macías-Duarte, Reyna A. Castillo-Gámez, Angel B. Montoya
National Quail Symposium Proceedings
Investigating the diet composition of Montezuma quail (Cyrtonyx montezumae) is fundamental for unveiling how food resources limit the species’ population size and may provide relevant tools for their harvest and habitat management. The objective of this research was to determine the composition and geographic variation of the winter diet of the Montezuma quail in Arizona and New Mexico, USA, from quail crops harvested during the hunting seasons of 2008–2017. In addition, we used beta regression analyses to determine the effect of environmental factors and ecological variables (annual mean precipitation, annual mean temperature, landscape diversity, diet diversity, time of …
Composition Of The Montezuma Quail’S Diet In Arizona, New Mexico, And Texas, Ana G. Paredes-Acuña, Alberto Macías-Duarte, Reyna A. Castillo-Gámez, Angel B. Montoya, James H. Weaver
Composition Of The Montezuma Quail’S Diet In Arizona, New Mexico, And Texas, Ana G. Paredes-Acuña, Alberto Macías-Duarte, Reyna A. Castillo-Gámez, Angel B. Montoya, James H. Weaver
National Quail Symposium Proceedings
The Montezuma quail (Cyrtonyx montezumae) is a popular game bird and an indicator species of oak-pine savannas in the northern part of its range. In Arizona and New Mexico, USA, robust populations allow for a hunting season from mid-November through mid-February. However, there is no open hunting season for this quail in Texas, USA. Data on the Montezuma quail’s diet can provide new information and improve management of the species. Our objective was to analyze the diet composition of the Montezuma quail in Arizona, New Mexico, and Texas. Specimens were collected by hunters in Arizona and New Mexico …
Population Density Estimates Of The Montezuma Quail (Cyrtonyx Montezumae) In West Texas, Alberto Macías-Duarte, Angel B. Montoya, James H. Weaver
Population Density Estimates Of The Montezuma Quail (Cyrtonyx Montezumae) In West Texas, Alberto Macías-Duarte, Angel B. Montoya, James H. Weaver
National Quail Symposium Proceedings
In Texas, USA, populations of Montezuma quail (Cyrtonyx montezumae) can be found scattered across mountain ranges in the Trans-Pecos region, including the Davis and Guadalupe, and farther east into the Edwards Plateau region. Abundance and distribution information to assist land managers in the enhancement of Montezuma quail populations is scarce due to the species’ secretive behavior and unknown abundance. We aimed to provide population density indices to fill this information gap by using a search path technique. We searched for quail in the winter of 2018–2019 in West Texas at 6 study sites: 5 private ranches and Elephant …
Corn (Zea Mays L.) Production In Living Mulch Systems, Grazing Potential, And Economic Viability, Marcia Peireira Quinby
Corn (Zea Mays L.) Production In Living Mulch Systems, Grazing Potential, And Economic Viability, Marcia Peireira Quinby
Doctoral Dissertations
Living mulch (LM) is a practice in which forages are grown simultaneously with the main crop, serving as a living cover throughout the growing season. The LM systems were developed to alleviate concerns of soil depletion and finding ways to reduce tillage negative effects on soil productivity. In addition, when legumes are use can decrease the reliance on N fertilizer. The use of corn in LM have been previously studied due to the crop being a large commodity in the U.S.; In addition, the ability to graze the LM after corn production can increase the land use efficiency. To determine …
Optimal Stocker Production Strategies For Spring And Fall Calving Cow Herds, Cora Beth Key
Optimal Stocker Production Strategies For Spring And Fall Calving Cow Herds, Cora Beth Key
Masters Theses
This thesis consists of two chapters discussing the economics of raising stocker beef cattle in the southeast United States. The objective of the first chapter is to estimate supplemental feed cost for spring-calving cows, spring-born stockers, cows calving in the fall, and fall-born stockers, while considering the seasonality of forage production and nutritional needs. The chapter explores ways producers can lower their feed costs and demonstrates the importance of managing hay expenses for cattle producers to control cost. The objective of chapter two is to determine the profit-maximizing stocker period in an integrated cow-calf and stocker operation with both fall- …
Efficacy Of Sequential Estrus Synchronization And Timed Artificial Insemination In Beef Cattle Beginning 19 Days After An Initial Timed Artificial Insemination, Courtnie Carter Bridges
Efficacy Of Sequential Estrus Synchronization And Timed Artificial Insemination In Beef Cattle Beginning 19 Days After An Initial Timed Artificial Insemination, Courtnie Carter Bridges
Masters Theses
A breeding program utilizing single fixed-timed artificial insemination (AI) was compared to a resynchronization program for a second fixed-timed AI. Angus and Angus cross primiparous and multiparous cows were randomly assigned to one of two treatment regimens; either single TAI (CON; n=468) or two sequential TAI (RS; n=473). The main objectives were assessing pregnancy rates and analyzing fetal age to estimate calving distribution rates between the two treatment groups. The 7-day CO-synch + CIDR protocol was utilized in both treatment groups to synchronize estrus for TAI-1 at 60h - 66h post- Prostaglandin injection (PGf2α). Animals in the RS treatment groups …
Cerulean Warbler Full Annual Cycle Ecology: Filling In Critical Knowledge Gaps, Douglas W. Raybuck
Cerulean Warbler Full Annual Cycle Ecology: Filling In Critical Knowledge Gaps, Douglas W. Raybuck
Doctoral Dissertations
Cerulean Warblers (Setophaga cerulea) are a declining migratory bird species of conservation concern that breed in mature hardwood forests of eastern North America and spend the stationary non-breeding period in the tropical Andes of South America. To reverse their >50-year population decline, a full annual cycle conservation strategy is needed. However, several important knowledge gaps have limited our understanding of this species’ full annual cycle ecology, including migration ecology, response to forest management on the breeding grounds, and basic ecology during the stationary non-breeding period in Andean forests. From geolocator data, we found a moderate pattern of migratory …
Locked Nucleic Acid Aptamer And 10 Nm Gold Nanoparticles Increases The Sensitivity Of A Prion Protein Detection Assay, Haley Channell
Locked Nucleic Acid Aptamer And 10 Nm Gold Nanoparticles Increases The Sensitivity Of A Prion Protein Detection Assay, Haley Channell
Chancellor’s Honors Program Projects
No abstract provided.
Effects Of Protein Concentration And Beta-Adrenergic Agonists On Ruminal Microbial Communities In Finishing Beef Heifers, Alison P. Pfau
Effects Of Protein Concentration And Beta-Adrenergic Agonists On Ruminal Microbial Communities In Finishing Beef Heifers, Alison P. Pfau
Masters Theses
To improve animal performance and modify growth by increasing lean tissue accretion, beef cattle production has relied on use of growth promoting technologies such as beta-adrenergic agonists. These synthetic catecholamines, combined with the variable inclusion of rumen degradable (RDP) and undegradable protein (RUP), may improve feed efficiency and rate of gain in finishing beef cattle. However, research about the impact of beta-adrenergic agonists and protein level and source on the ruminal microbiome is limited. The objective of this study was to determine the effect of different protein concentrations and beta-adrenergic agonist (ractopamine hydrochloride; RAC usage) on ruminal bacterial communities in …
Microplastics Exposure In At-Risk Myotis Lucifugus Bats Of The Northeastern United States, Leah Crowley
Microplastics Exposure In At-Risk Myotis Lucifugus Bats Of The Northeastern United States, Leah Crowley
Chancellor’s Honors Program Projects
No abstract provided.
Conservation Status Assessment Of The Egg-Mimic Darter (Percidae: Etheostoma Pseudovulatum) Using A Multi-Faceted Approach, Zachary L. Wolf, John W. Johansen, Rebecca E. Blanton
Conservation Status Assessment Of The Egg-Mimic Darter (Percidae: Etheostoma Pseudovulatum) Using A Multi-Faceted Approach, Zachary L. Wolf, John W. Johansen, Rebecca E. Blanton
Southeastern Fishes Council Proceedings
The imperiled Egg-mimic Darter (Etheostoma pseudovulatum) is a headwater-adapted fish restricted to an area less than 1000 km2 in Tennessee. It is found in only six tributaries of the Duck River and the large, mainstem of this system may act as a barrier to dispersal, restricting population connectivity. The only status assessment of this species was over two decades ago; genetic diversity and the degree of population connectivity have never been evaluated. We conducted a conservation status assessment using a multi-faceted approach to better inform conservation management plans, including examining its current distribution, assessing habitat quality, estimating …