Digital Commons Network^™

Targeted Browsing With Goats For Eastern Redcedar (Juniperus Virginiana L.) Control, Alanna M. Hartsfield

Electronic Theses and Dissertations

As eastern redcedar (ERC) (Juniperus virginiana L.) grassland encroachment progresses, all potential control methods should be explored in the interest of Great Plains grassland health and longevity. Targeted browsing with goats has been proven as an effective control method on some juniper species; however, little is known about its ability to control ERC. These studies intend to mend knowledge gaps of how targeted browsing with goats control ERC by causing tree death without chemicals or machinery. The first study is two 3x3 Latin squares comparing protein-supplemented diets. The second study is a randomized complete block design of five 0.224 ha …

The Potential Of Bison Restoration As An Ecological Approach To Future Tribal Food Sovereignty On The Northern Great Plains, Hila Shamon, Olivia G. Cosby, Chamois L. Andersen, Helen Augare, Jony Bearcub Stiffarm, Claire E. Bresnan, Jeff M. Martin, Et Al.

Natural Resource Management Faculty Publications

Future climate projections of warming, drying, and increased weather variability indicate that conventional agricultural and production practices within the Northern Great Plains (NGP) will become less sustainable, both ecologically and economically. As a result, the livelihoods of people that rely on these lands will be adversely impacted. This is especially true for Native American communities, who were relegated to reservations where the land is often vast but marginal and non-tribal operators have an outsized role in food production. In addition, NGP lands are expected to warm and dry disproportionately relative to the rest of the United States. It is therefore …

Curriculum Development Of Agricultural Educators In South Dakota, Mercedes Lemke

Electronic Theses and Dissertations

Curriculum development is an essential component of teaching. Understanding how agriculture education teachers utilize, develop, and adapt content to curriculum can benefit teachers to spend less time on curriculum development. Recognizing the way agriculture education teachers use content in curriculum implementation will allow curriculum developers to create materials that can effectively be used by teachers. This study also looked at the affects of how COVID19 pandemic affected the way teachers locate and develop curriculum. The purpose of this study was to evaluate the way agriculture education instructor’s usage of content for curriculum development, implementation decisions and the affects of the …

Application Of Pork Checkoff We Care Sustainability Principles To Pork Production: Water, Nutrition, And Biosecurity, Hannah Miller

Electronic Theses and Dissertations

The Pork Checkoff program was founded in 1986 as a means to strengthen U.S. pork in the market place (Pork Checkoff). Under this program all U.S. pork producers and importers pay $0.40 for every $100 worth of pigs is sold (Pork Checkoff). Funds are then used for pork promotion, research, and education for producers and consumers (Pork Checkoff). The Pork Checkoff program uses the We Care ethical principles as a means to address “continuous improvement in the pork industry’s production practices and promote a strong record of responsible farming to those outside of the industry” (National Pork Board, 2018a). The …

Effect Of Essential Oils In The Control Of Fungal Diseases In Small Grains, Esneider Mahecha Bojaca

Electronic Theses and Dissertations

Spring wheat (Triticum aestivum L.) and oats (Avena sativa L.) are important crops due to their high consumption in our daily diet worldwide. They are the main food of consumption per capita due to the high amino-acid content as well of vitamins. However, grain production is limited due to the negative impact of the diseases that cause significant yield loss. Diseases in oats, such as crown rust caused by Puccinia coronata f. sp. avenae (Pca), and in wheat such as Fusarium head blight (FHB) caused by the fungus Fusarium graminearum. Foliar diseases such as tan spot incited by the fungi …

High Protein Yeast-Based Ddgs As An Alternative To Commonly Used Protein Sources In Pig Diets, Yesid Ricardo Garavito Duarte

Electronic Theses and Dissertations

Alternative ingredients and co-products from ethanol and biofuel industries represent an opportunity for utilization in swine diets. In this context, understanding nutritional value to practical swine feeding begins with product characterization and determination of nutrient digestibility. The objective of this research was to test the hypothesis: yeast-based high-protein DDGS (HP-GDDY) has comparable AA and metabolizable energy (ME) digestibility to feedstuffs commonly used in swine diets and that it could be included as an alternative protein source in nursery diets without negative impact on growth performance. Cornstarch-based diets were formulated using six ingredients as the sole source of AA: spray dried …

Phomopsis Stem Canker Of Sunflower (Helianthus Annuus L.): Etiology And Epidemiological Conditions Affecting Endophytic Population Of Diaporthe Spp., And Fungicide Efficacy, Nabin Kumar Dangal

Electronic Theses and Dissertations

Phomopsis stem canker (PSC), caused by species of Diaporthe, is a major disease of sunflower (Helianthus annuus L.) in the U.S., which can cause yield loss over 40%. The disease prevalence increased since 2010 in the major sunflower producing U.S. states of Nebraska, Minnesota, North Dakota, and South Dakota. Previous studies on the use of foliar fungicides in managing Phomopsis stem canker indicated mixed results on their efficacy in disease reduction and yield gain. Additionally, we do not have sufficient information on asymptomatic colonization by endophytic Diaporthe on sunflower tissue and how foliar fungicide and weather parameters affect the prevalence …

Study Of Root System Architectural Traits Of Oat And Response To Endophyte Inoculation And Drought Stress, Krishna Ghimire

Electronic Theses and Dissertations

Oat is an important cereal crop grown worldwide. Oats have the potential to contribute to human health due to their unique nutritional attributes. Developing oat cultivars with efficient root systems able to extract heterogeneously distributed soil resources can help maintain yield under drought conditions and in nutrient poor soil. Various root traits determine the soil volume that is explored by the root system for resource acquisition. Knowledge about the genetic control of oat root traits and response to biotic and abiotic environmental factors is lacking. Identifying quantitative trait loci associated with root traits and understanding the response of roots to …

Determining The Impact Of Corn Source On Nutrient Availability And Pig Performance, And Improving Boar Performance During Heat Stress, Jordan Jansen

Electronic Theses and Dissertations

The quality and effectiveness of the feedstuffs included in diets of production livestock directly impact yield efficiency and performance characteristics desired by producers. This thesis focuses on the performance and digestibility of corn from different countries in pig diets and how different feed additives can be supplemented to improve boar reproductive performance during heat stress. Corn is the largest energy source in common pig diets. The physical characteristics of corn such as broken kernels, foreign material, and excessive dust are said to negatively impact the quality of the grain for pig diets by being less digestible and a worsened nutrient …

Impact Of Storage Conditions And Varieties On The Composition, Physical Properties, And Functionality Of Dry Peas, Sushmita Karki

Electronic Theses and Dissertations

Dry peas are sustainable, healthy, and nutritious pulse crop and are excellent source of protein and complex carbohydrates as well as micronutrients. The effects of storage conditions on composition of beans and cereals have been widely reported. The information gained contributed significantly to better storage practices for these commodities. However, literature addressing the chemical composition, functionality, and physical characteristics of dry pea seeds upon storage is scarce. This study was designed to address the impact of storage conditions and varieties on the nutrient profile, functionality, and physical properties of dry pea seeds. Six different varieties of dry peas were stored …

Production Of Calcium Reduced Micellar Casein Concentrate Powders And Their Use In Process Cheese Products, Anil Kommineni

Electronic Theses and Dissertations

Protein is an essential dietary component, and sufficient intake is vital in a healthy and balanced diet. Consumers are becoming increasingly aware of and knowledgeable about the role of protein in the diet. Two of the next-generation dairy protein ingredients isolated from milk are micellar casein (MCC) and milk-derived whey protein, isolated from skim milk using microfiltration (MF). Membrane filtration has been used extensively by the dairy industry to produce a variety of dairy ingredients from milk. MCC manufactured from freshly pasteurized milk can be directly consumed or as a supplement to fortify and enhance nutritional qualities in processed food …

Crispr/Cas9 Whole-Genome Screens Identify Genes Critical For Neutral Lipid Metabolism In Macrophages, Rifat Sultana

Electronic Theses and Dissertations

Lipid-laden macrophages contribute to atherosclerotic plaque formation in atherosclerosisrelated heart diseases. Thus, understanding formation and degradation of lipid would help identify therapeutic targets for the treatment of atherosclerosis. In the first chapter of this dissertation, I have explained the current understanding of cholesterol metabolism in macrophages and how mTOR could play a potential role in this process. Additionally, I have described how CRISPR/Cas9 whole-genome screens present an effective tool to identify genes regulating cholesterol metabolism including positive and negative regulators of lipid droplet formation and lipid droplet degradation. In Chapter 2, I have described the results of the CRISPR/Cas9 whole-genome …

Genome-Wide Association Mapping And Genomic Prediction For Enhancing Fhb Resistance In Hard Winter Wheat, Jinfeng Zhang

Electronic Theses and Dissertations

Wheat is one of the most important staple crops providing 20% of energy for 35% of the world population. Fusarium head blight (FHB), primarily caused by the fugal Fusarium graminearum Schwabe, is a damaging disease in wheat that affects global wheat production every year and causes food safety issues. The disease not only reduces the grain yield and quality but also produces mycotoxin in the diseased kernels making them unsuitable for human consumption or as livestock feeds. Breeding FHB resistant cultivar is the most effective and economical approach to managing the disease. This study combines genome-wide association study (GWAS) and …

Efficacy Of Nanomaterials And Biorationals On The Bacterial Leaf Streak Management In Wheat, Abraham Hangamaisho

Electronic Theses and Dissertations

Wheat (Triticum aestivum L.) is one of the most important cereal crops in the United States. Most wheat varieties are susceptible to bacterial leaf streak (BLS), a major disease caused by Xanthomonas translucens pv. undulosa (Xtpvu). BLS is challenging to manage since common chemicals do not provide adequate control. Nanomaterials and plant extracts have shown potential to provide a sustainable environmentally friendly control of animal and plant diseases. However, limited data are available on the efficacy of plant extracts and nanomaterials controlling BLS in wheat. The objective of this study was to evaluate the antibacterial activity of plant extracts and …

Genistein-Enriched Pig Gut Microbiota Library As A Potential Probiotic Consortium, Theresah Amponsah

Electronic Theses and Dissertations

Plant-based diets contain numerous flavonoid compounds that produce antibacterial effects and gut health improvement. Genistein is among the most abundant isoflavones present in a plant-based diet and can be found in high amounts in soy products (up to 1g Kg-1). We describe here a robust method to identify genistein tolerant and metabolizing bacteria in swine gut microbiota and to screen the strains that have antibacterial and immunestimulatory properties. Such strains could be developed as non-antibiotic alternatives to prevent enteric infections in pigs and improve gut immunity. To this end, a mini bioreactorbased system was used to enrich genistein metabolizing bacteria …

Disentangling The Complex Evolutionary History Of Invasive Russian Thistle: Phylogenetic Relationships, The Role Of Hybridization, And Public Engagement, Deva Raj Khanal

Electronic Theses and Dissertations

Invasive species are forces of environmental, economic, and social change with detrimental impacts on ecosystems, commerce, agriculture, and human health. However, we still have a poor understanding of the processes that could be driving invasive potential. Hybridization may contribute to the establishment and spread of invasive lineages, as it may enhance genetic variation and facilitate rapid adaptation. Focusing on Russian thistle (Salsola tragus s.l., family Amaranthaceae) and closely related species, my thesis aims to clarify phylogenetic relationships and investigate how hybridization has shaped the invasion dynamics of these lineages. Known as one of the fastest plant invasions in the United …

A Post-Pneumonia Epizootic Evaluation Of The Rapid City, South Dakota Bighorn Sheep Herd, Amanda N. Ensrud

Electronic Theses and Dissertations

Pneumonia is a major factor affecting populations of free-ranging bighorn sheep (Ovis canadensis) across western North America. Pneumonia can occur in large-scale epizootics, during which greater than half of the population typically dies. After these epizootics, surviving ewes continue to conceive and bear lambs. However, lamb recruitment may remain low due to periodic or annual pneumonia outbreaks causing high lamb mortality rates, sometimes greater than 90%. Our study focused on the Rapid City, South Dakota bighorn sheep (BHS) herd that has recorded pneumonia-induced population decline since 2009. The first objective was to improve lamb health and survival by identifying and …

Post-Fledging Habitat Selection And Movements Of Juvenile Mallards In The Prairie Pothole Region, Cynthia E. Anchor

Electronic Theses and Dissertations

The Prairie Pothole Region (PPR) of North America provides critical habitat for waterfowl across life stages, but anthropogenic changes to the landscape have negatively impacted habitat quality for waterfowl. The mallard (Anas platyrhynchos) is abundant and socioeconomically valuable in the PPR, as it is a preferred target species of waterfowl hunters. Extensive research has evaluated breeding ecology of mallards in the PPR, but the period between juvenile mallards fledging and migrating has rarely been studied. The post-fledging ecology of juvenile mallards is a vital consideration for comprehensive waterfowl management. Further, juvenile mallards are a significant portion of hunter harvest at …

Cover Crops To Improve Soil Health In The North American Great Plains, Augustine K. Obour, Logan M. Simon, Jonathon D. Holman, Patrick M. Carr, Meagan Schipanski, Steven Fonte, Rajan Ghimire, Thandiwe Nleya, Humberto Blanco-Canqui

Agronomy, Horticulture and Plant Science Faculty Publications

Rotating cereal crops (e.g., wheat [Triticum aestivum L.] with a 10- to 21-mo summer fallow period [fallow]) is a common farming practice in dryland (rainfed) agricultural regions. Fallow is associated with several challenges including low precipitation storage efficiency, depletion of soil organic carbon (SOC), loss of soil fertility, little crop residue retention and soil erosion, and few control options for herbicide-resistant (HR) weeds. The inability to effectively control HR weeds poses a major challenge to maintaining soil and water conservation practices such as no-tillage, as some producers are considering tillage to control weeds. Cover crop (CC) integration into wheat-based …

Global Forces Of Change: Implications For Forest-Poverty Dynamics, Priya Shyamsundar, Laura Aileen Sauls, Jennifer Zavaleta Cheek, Kira Sullivan-Wiley, J.T. Erbaugh, P. P. Krishnapriya

Natural Resource Management Faculty Publications

This article examines global trends likely to influence forests and tree-based systems and considers the poverty implications of these interactions. The trends, identified through a series of expert discussions and review of the literature, include: (i) climatic impacts mediated through changes in forests, (ii) growth in commodity markets, (iii) shifts in private and public forest sector financing, (iv) technological advances and rising interconnectivity, (v) global socio-political movements, and (vi) emerging infectious diseases. These trends bring opportunities and risks to the forest-reliant poor. A review of available evidence suggests that in a business-as-usual scenario, the cumulative risks posed by these global …

College Of Natural Sciences Scholarship Brunch Program, November 6th 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

This is the program for the first annual College of Natural Sciences Scholarship Brunch, held on November 6th, 2021 at McCrory Gardens.

Yield And Economic Performance Of Crop Rotation Systems In South Dakota, Hanxiao Feng, Tong Wang, Shannon L. Osborne, Sandeep Kumar

Economics Faculty Publications

Crop yield and economic profitability, both highly dependent on local crop management, soil characteristics, and weather conditions, are among the most influential factors to consider when considering a cropping system. The objective of this study was to compare the economic returns of three different 4-yr diverse crop rotations with that of a 2-yr traditional crop rotation in eastern South Dakota. The rotations included were (a) corn (Zea mays L.)–soybean [Glycine max (L.) Merr.]–spring wheat (Triticum aestivum L.)–pea (Pisum sativum L.) (CSSwP), (b) corn–pea–winter wheat–soybean (CPWwS), (c) corn–oat (Avena sativa L.)–winter wheat–soybean (COWwS), and (d) corn–soybean …

Snowier Winters Extend Autumn Availability Of High-Quality Forage For Caribou In Arctic Alaska, J. C, Richert, A. J. Leffler, D. E. Spalinger, J. M. Walker

Natural Resource Management Faculty Publications

Caribou (Rangifer tarandus) rely on the short Arctic growing season to restore body condition, support the demands of lactation, and prepare for the long arctic winter, making them susceptible to even small changes in forage availability or quality. Body condition in the summer and autumn is linked to winter survival rates and fecundity in cows, critical factors in the productivity of caribou populations. Climate change predictions of warmer and wetter northern winters suggest increased snowfall over Alaska’s North Slope, which has recently been verified between 1995 and 2017. However, a comprehensive analysis of how deeper snow will affect caribou forage …

Environmental Factors Associated With Nitrogen Fixation Prediction In Soybean, Andre Froes Borja Reis, Luiz Moror Rosso, Larry C. Purcell, Seth Naeve, Shaun N. Casteel, Peter Kovacs, Sotirios Archontoulis, Dan Davidson, Ignacio A. Ciampitti

Agronomy, Horticulture and Plant Science Faculty Publications

No abstract provided.

South Dakota State University One Hundred Thirty-Fifth Commencement Ceremonies, May 8-9, 2021, Brookings, South Dakota, South Dakota State University

Commencement Programs

Please note: The names listed in the program are not official confirmation of meeting the graduation requirements. Commencement for the 135th Commencement at South Dakota State University consists of morning and afternoon ceremonies on May 8th and May 9th. Each program will commence with introductions by University President Barry H. Dunn. Dennis D. Hedge, Provost and Vice President for Academic Affairs will acknowledge student honors and Lt. Col. Jason A. Haufschild, Air Force ROTC, and Lt. Col. Jason W. Kettwig, Army ROTC, recognizing Army and Air Force commissions for each ceremony. The SATURDAY MORNING ceremony (page 7) will mark the …

Senegal’S Global Health Example In The Fight To Achieve The Sustainable Development Goals, Annika Skogg

Schultz-Werth Award Papers

In a time when the entire world is experiencing the importance of global health, Senegal has been highly praised for the effectiveness of its COVID-19 response despite being a low-resource country in West Africa. Senegal’s COVID-19 response displays the central pillars of the country’s community-based public health programming that has made it so successful in decreasing malaria transmission and improving maternal health. This study combines qualitative data with personal experiences during a faculty-led study abroad program to Senegal to examine Senegalese public health campaigns, evaluate the reasons for their success, and ultimately learn from a leader in the global fight …

College Of Nursing, Spring 2021, Matt Schmidt, Christine Delfanian, Dave Graves, Sydney Smith, Micayla Standish

College of Nursing Magazine

FEATURES
[Page] 2 University honors Abuatiq
[Page] 4 Mehlhaff adds author to titles
[Page] 5 West River Health Sciences Center gets established
COLLEGE NEWS
[Page] 7 RN to B.S.N. program changes
[Page] 8 Program returns nurses to field
[Page] 10 Impact of NANEC
[Page] 11 New role for Arends
[Page] 12 Carson, Burdette retire
[Page] 14 Winterboer, Soholt honored
RESEARCH
[Page] 16 Mollman recognized for efforts
STUDENT NEWS
[Page] 20 Mother, daughter earn diplomas
[Page] 22 Sigma Theta Tau anniversary
[Page] 24 Engineering and nursing
[Page] 26 Benefits of scholarships
SDSU FOUNDATION
[Page] 28 Sustaining scholarships

Animal Science Department News, Department Of Animal Science

Animal Science Newsletters

No abstract provided.

Responses Of Soil Surface Greenhouse Gas Emissions To Nitrogen And Sulfur Fertilizer Rates To Brassica Carinata Grown As A Bio-Jet Fuel, Dwarika Bhattarai, Gandura O. Abagandura, Thandiwe Nleya, Sandeep Kumar

Agronomy, Horticulture and Plant Science Faculty Publications

Carinata (Brassica carinata A. Braun), a non-food oilseed crop and an alternative bio-jet fuel feedstock, has received attention for its potential as a low-input option for production in the semi-arid region of the Northern Great Plains of the United States. Research addressing the impacts of nitrogen (N) and sulfur (S) fertilizers on soils and greenhouse gas (GHG; CO₂, N₂O, and CH₄) emissions from carinata production are limited. Thus, objective of this study was to evaluate the impact of different rates of N and S fertilizers applied to carinata on soil properties and GHG …

Growing South Dakota (Spring 2021), College Of Agriculture, Food And Environmental Sciences

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

This issue contains the 2020 SDSU Extension Annual Report and 2020 South Dakota Agricultural Experiment Station Annual Report.

[Page] 3 COVID-19 Impacts
[Page] 9 Precision Agriculture: What's New
[Page] 13 Featured Research
[Page] 19 SDSU Extension 2020 Annual Report
[Page] 45 South Dakota Agricultural Experiment Station 2020 Annual Report
[Page] 55 CAFES News and Updates
[Page] 67 Alumni News
[Page] 75 Alumni Gone Down in History
[Page] 81 Jackrabbits Now and Then: A Current Student and Alumni Q&A