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Response Of Soil Biochemical And Physical Properties To Long Term Prairie Cordgrass And Kura Clover Intercropping System, Vaishnavi Varikuti Jan 2022

Response Of Soil Biochemical And Physical Properties To Long Term Prairie Cordgrass And Kura Clover Intercropping System, Vaishnavi Varikuti

Electronic Theses and Dissertations

Prairie cordgrass (Spartina pectinata) (PCG) is a warm-season perennial grass that can be used as a biofuel feedstock and can be grown on marginal lands. Previous studies on intercropping of a perennial legume i.e., kura clover (Trifolium ambiguum) (KC) with PCG can improve soil biochemical properties, increase biomass production, mitigate greenhouse gas (GHG) emissions while reducing the chemical fertilizer requirement. However, there is a lack of evidence about the effects of PCG production on soil biochemical and physical properties during the cropping season and at deeper soil depths in reference to support plant growth, environmental implications and enhance the soil …

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Effect Of Finishing System And Animal Age On Carcass Traits And Nutritional Profile Of Bison Bulls, Clay Newton Jan 2022

Effect Of Finishing System And Animal Age On Carcass Traits And Nutritional Profile Of Bison Bulls, Clay Newton

Electronic Theses and Dissertations

The objectives of this thesis project were to 1) evaluate the influence of grain- and grass-finishing systems on carcass characteristics, proximate composition, nutritional profile, and fatty acid composition of bison bull meat, and 2) evaluate the influence of animal age on carcass characteristics of bison bulls. For objective 1, bison bulls were allowed to graze native range in north-central Nebraska until approximately 26 mo of age, when they were randomly assigned to either grain-finishing (n = 98; in an open lot with ad libitum access to prairie hay, alfalfa hay and corn for 95 d prior to slaughter) or grass-finishing …

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Modeling The Flow And Creep Compliance Properties Of Ice-Cream Mixes, Hiran Ranaweera Jan 2022

Modeling The Flow And Creep Compliance Properties Of Ice-Cream Mixes, Hiran Ranaweera

Electronic Theses and Dissertations

This work documented the influence of the protein source (MPC80 and WPC80), protein content (4-12%), and temperature (5-35ºC) on the rheological behavior (flow curve, frequency sweep, and creep-recovery) of ice-cream mixes (ICM). For each protein source, the viscosity of the ICM was satisfactorily modeled (𝑅2>0.98, 𝑅2 𝑎𝑑𝑗>0.98, and E0.99), while the recovery phase was represented by an empirical model. The percentage of recovery (%R) of the ICM significantly decreased with the protein content.

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Factors Associated With Increased Breastfeeding At Initiation And Continuation At Two Months In American Indian Women, Addison Reimer Jan 2022

Factors Associated With Increased Breastfeeding At Initiation And Continuation At Two Months In American Indian Women, Addison Reimer

Electronic Theses and Dissertations

Introduction: The purpose of this report was to determine the prevalence of breastfeeding at initiation and two months continuation in American Indian South Dakota mothers who gave birth between 2017-2019 and determine the factors associated with breastfeeding and various health behaviors and beliefs. This study serves to fill the current gaps in research focusing on breastfeeding in American Indian women in South Dakota. Methods: Data from the South Dakota Pregnancy Risk Assessment Monitoring System (SD PRAMS), a state-based surveillance system, was used to investigate the relationship between breastfeeding and maternal behaviors, attitudes, and experiences. Logistic regression was used to determine …

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Evaluating The Effects Of Medium Chain Fatty Acids On Sow Reproductive Characteristics, Offspring Biological Health Markers, And Growth Performance, Analicia J. Swanson Jan 2022

Evaluating The Effects Of Medium Chain Fatty Acids On Sow Reproductive Characteristics, Offspring Biological Health Markers, And Growth Performance, Analicia J. Swanson

Electronic Theses and Dissertations

A sow’s diet can influence and her offspring not only in the suckling period, but well after weaning. The objective of this study was to determine how supplementing medium chain fatty acids (MCFA) in gestation and lactation impacted offspring growth performance as well as the biological markers of pig quality from the suckling period until week 6 of the nursery period. A total of 77 primparious and multiparious females and their 438 offspring were utilized in this study. Sows and gilts (218.15 kg ± 32.15 kg BW at d28 of gestation) were assigned to one of 2 dietary treatments: Control …

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Effects Of Food Insecurity On College Students’ Mental Health During The Coronavirus Pandemic, Kailee Schultz Jan 2022

Effects Of Food Insecurity On College Students’ Mental Health During The Coronavirus Pandemic, Kailee Schultz

Schultz-Werth Award Papers

Over 10 percent of US households were food insecure in 2019. COVID-19 aggravated food insecurity in the US, both by making it worse for already-food insecure households and pushing additional households into food insecurity. College students represent a demographic with unique food security challenges. For this group, food insecurity is often linked to changes in academic performance and mental health. The overall objective of this study is to analyze food insecurity among households with college students during the coronavirus pandemic. Specifically, this study will (1) characterize food insecurity among households with college students and (2) examine the impact of food …

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Sanford Patient Navigation Program For Children With Medical Complexities (Cmc): A Vital Initiative To Help Minimize Costs And Maximize Family Satisfaction In Cmc’S, Carolyn Ann Blatchford Jan 2022

Sanford Patient Navigation Program For Children With Medical Complexities (Cmc): A Vital Initiative To Help Minimize Costs And Maximize Family Satisfaction In Cmc’S, Carolyn Ann Blatchford

Schultz-Werth Award Papers

It is no secret that medical costs are rising. However, for families with children who have medical complexities, the financial burden is just the beginning of challenges faced daily. However, programs are beginning to develop aiming at minimizing the challenges these families face. One of these initiatives’ hospitals continue to improve is the use of care coordination or patient navigation efforts. The Sanford Patient Navigation Program is a new hospital initiative reflecting care coordination models across the country designed to better serve children with medical complexities in our communities. The project examined the first two cohorts of the Sanford Patient …

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A Review Of Virus-Vectored Vaccines: Current Production Methods, Uses, Issues, And Future Perspectives, Jaden Marks Jan 2022

A Review Of Virus-Vectored Vaccines: Current Production Methods, Uses, Issues, And Future Perspectives, Jaden Marks

Biology and Microbiology Graduate Students Plan B Research Projects

Viral vector vaccines have recently risen to the forefront of vaccinology, but there are multiple factors that must be addressed before they achieve widespread approval and use. The concept of using viruses as vectors is not new, and numerous attempts to create vaccines that utilize virus vectors have been made in the past 25 years. Despite this, only one viral vector vaccine has gained full approval by the FDA. The goal of this review is to provide a comprehensive overview of the types of viral vector vaccines, production and purification methods, current and future viral vector vaccines, the issues and …

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Trace Mineral Source And Inclusion Level On Wean-To-Finish Pig Production, Marissa Larosae Jan 2022

Trace Mineral Source And Inclusion Level On Wean-To-Finish Pig Production, Marissa Larosae

Electronic Theses and Dissertations

Trace mineral requirements to optimize production for swine are not well defined, leading to excess trace mineral supplementation in swine diets and ultimately to excess trace minerals excreted in swine manure. Potential strategies to reduce the waste of excess trace minerals in diets include utilizing organic sources with higher bioavailability or reducing the overall trace mineral supplementation in the diet. Two studies were conducted in an effort to determine if utilizing organic trace minerals or reducing trace mineral inclusion into diets has an impact on overall performance measurements for nursery and grow-finish pigs, respectively. The first experiment utilized 1,144 weaned …

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E. Coli Persister Cell Survival And Rhizobia Attachment To Soybean Roots, Tanim Islam Jan 2022

E. Coli Persister Cell Survival And Rhizobia Attachment To Soybean Roots, Tanim Islam

Electronic Theses and Dissertations

The theme of this thesis revolves around how bacteria respond and thrive during stress. Chapters 1-3 are about how bacteria deal with life-threatening antibiotics. Chapter 4 covers new research on how bacteria can move from a stressful individual lifestyle (free-living bacteria) to initiating a symbiotic relationship with a plant (a less stressful lifestyle). In Chapter 1, I briefly summarize the current state of knowledge in the field of antibiotic resistance and persistence. In Chapter 2, I add to this knowledge by providing new insights into several antibiotics' potency and exploring the antibiotic Eagle effect. In Chapter 3, I use pyruvate …

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A Novel Crispr/Cas Gene Editing System For Plants Which Bypasses Genetic Transformation And Tissue Culture, Aastha Acharya Jan 2022

A Novel Crispr/Cas Gene Editing System For Plants Which Bypasses Genetic Transformation And Tissue Culture, Aastha Acharya

Electronic Theses and Dissertations

CRISPR/Cas system is a powerful gene-editing tool that has revolutionized gene editing in many ways. However, the current delivery methods for using CRISPR/Cas system inn plants have some drawbacks that have greatly limited their routine application in plant research and improvement. Specifically,, the methods heavily rely on either genetic transformation for delivering Cas and/or its gRNA coding sequences into the targeted cells or tissue culture, or both for recovering the whole edited plants. To overcome these drawbacks, we have developed a simple, easy to use yet effective system for CRISPR/Cas gene editing in plants that can bypass genetic transformation and …

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South Dakota State University : Research 2021, Division Of Research And Economic Development Jan 2022

South Dakota State University : Research 2021, Division Of Research And Economic Development

State of Discovery South Dakota State University's Research Magazine

[Page] 2 Prasad first ME faculty member to receive NSF CAREER Award
[Page] 4 NSF project analyzes new material for next-generation batteries
[Page] 6 SDSU Poll captures pulse of South Dakota electorate
[Page] 8 Hillman grant to bring palliative care to rural, Native American cancer patients
[Page] 10 NIH grant to advance curcumin formulation for colon inflammation
[Page] 12 Rosemary compound may help postpartum cows
[Page] 14 Precision ag research initiatives to 14 build innovation ecosystem
[Page] 16 POET Bioproducts Institute to transition research to marketplace
[Page] 17 Fy21 research expenditures at $51.5 million

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Beneficial Plant-Microbe Interactions To Improve Nutrient Uptake And Biotic Stress Response In Crops, Jaya Krishna Yakha Jan 2022

Beneficial Plant-Microbe Interactions To Improve Nutrient Uptake And Biotic Stress Response In Crops, Jaya Krishna Yakha

Electronic Theses and Dissertations

Mutualism is a very common phenomenon among living organisms on earth. Legumes because of their high protein content, serve as a great nutrient resource for animals. This group of plants can form a mutualistic symbiosis with beneficial microbes. For example, Alfalfa (Medicago) and soybean (Glycine max) can get colonized with arbuscular mycorrhizal fungi (AMF) and rhizobia bacteria simultaneously forming a complex tripartite interaction for nutrient benefits. Most of the previous research evaluated individual symbionts, either rhizobia bacteria or AMF, but not both. There are only a few reports which discuss the nutrient exchange mechanisms in a tripartite interaction. Thus, there …

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Evaluating Fungicide Timing, Efficacy, And Sensitivity As Well As Candidate Resistance Genes Against Fungi Causing Phomopsis Stem Canker In Sunflower, Ruchika Kashyap Jan 2022

Evaluating Fungicide Timing, Efficacy, And Sensitivity As Well As Candidate Resistance Genes Against Fungi Causing Phomopsis Stem Canker In Sunflower, Ruchika Kashyap

Electronic Theses and Dissertations

Phomopsis stem canker is one of the major diseases of sunflower (Helianthus annuus L.) caused by complex of Diaporthe spp., in the U.S. This disease became of economic importance after 2010 epidemic in Minnesota, North Dakota, and South Dakota and since then the prevalence of this diseases has increased due to increased average precipitation in these major sunflower growing regions of the U.S. The two important disease management strategies involve the use of fungicides and partially resistant hybrids. However, over the years, researchers and growers have seen varied results on Phomopsis stem canker disease severity reduction and yield gains, when …

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Optimization Of Forage Use In Diets Fed To Backgrounding And Finishing Cattle In The Northern Great Plains, Thomas G. Hamilton Jan 2022

Optimization Of Forage Use In Diets Fed To Backgrounding And Finishing Cattle In The Northern Great Plains, Thomas G. Hamilton

Electronic Theses and Dissertations

The two studies in this thesis were conducted to: 1) investigate the impact of corn silage moisture content and kernel processing at harvest on growth performance, efficiency of dietary net energy utilization, and carcass traits in finishing steers when fed at 20% DM inclusion in diets containing modified distillers grains plus solubles; and 2) determine the influence of equal cumulative roughage inclusion in a single diet or twodiet system during a 210-d backgrounding-finishing period in pre-conditioned beef steers on growth performance responses, efficiency of dietary net energy (NE) utilization, and carcass traits. Experiment 1 was a 112-d finishing experiment conducted …

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Design Of Affordable Polyaniline - Based Wearable Sensor For Real Time Plant Growth Monitoring, Temitope Borode Jan 2022

Design Of Affordable Polyaniline - Based Wearable Sensor For Real Time Plant Growth Monitoring, Temitope Borode

Electronic Theses and Dissertations

The need for precision agriculture in today and future farming cannot be overstressed. Recent agriculture is characterized by numerous challenges such as environmental stressors and resource constraints resulting in low crop yield and unsustainable agriculture practices. Understanding plant growth mechanism and growth rate under the external influence is a bedrock towards precision agriculture practices ensuring optimum yield and sustainable utilization of resources. The current study addresses this need by developing and applying an affordable and stable sensor for monitoring plant growth. The sensor was fabricated by in-situ chemical polymerization of aniline on an elastic band substrate by dip coating. The …

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Defining Amino Acid Requirements Of Pregnant Sows: Challenges And Opportunities, Christian D. Ramirez-Camba Jan 2022

Defining Amino Acid Requirements Of Pregnant Sows: Challenges And Opportunities, Christian D. Ramirez-Camba

Electronic Theses and Dissertations

The efficient use of protein in animal production is dependent on the protein supply and its constituent amino acids (AA) in relation to the animal's needs. Excess AA are deaminated, and the resulting nitrogen (N) is excreted, whereas suboptimal AA intake reduces animal performance. Both increased nutrient excretion and decreased animal performance reduce the overall efficiency of the production unit. In sows, AA requirements should be adequate for optimizing reproductive performance, as measured, for example, by the number of pigs produced per sow per year while limiting N excretion. There is a desire to feed pregnant sows AA levels that …

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Optimization Of Electrically Driven Fluid Flow Through Tissue Hydrogels, Joseph C. Walker Jan 2022

Optimization Of Electrically Driven Fluid Flow Through Tissue Hydrogels, Joseph C. Walker

Electronic Theses and Dissertations

No abstract provided.

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Identification And Characterization Of Candidate Rumen Bacterial Species From Beef Cattle With The Potential For Metabolizing Lipids, Cheyenne E. Hron Jan 2022

Identification And Characterization Of Candidate Rumen Bacterial Species From Beef Cattle With The Potential For Metabolizing Lipids, Cheyenne E. Hron

Electronic Theses and Dissertations

Ruminants and the microorganisms within their rumen have an intricate symbiotic relationship. Ruminants are able to convert plant materials that are indigestible to humans into meat, milk, and fiber for human consumption and use. Supplementing lipids in diets fed to beef cattle could be beneficial for the host animal as lipids are a higher density energy source. However, they can be detrimental to rumen microorganisms. While much research has been involved in elucidating the composition of the ruminal microbiome, knowledge of the effects of lipids on the ruminal microbiome has been quite limited. In this context, we took advantage of …

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Preparation And Characterization Of Cellulose-Based Biodegradable Films From Switchgrass And Spent Coffee Grounds, Sajal Bhattarai Jan 2022

Preparation And Characterization Of Cellulose-Based Biodegradable Films From Switchgrass And Spent Coffee Grounds, Sajal Bhattarai

Electronic Theses and Dissertations

Plastic packaging materials, which take more than 700 years to degrade, have polluted land, water, and the atmosphere. The consequent environmental and life hazards require attention to alleviate plastic concerns. Developing plastic-replacing materials could be a viable option. To this end, lignocellulosic fraction from inexpensive and widespread agricultural biomass switchgrass (SG) and biowaste spent coffee grounds (SCG) offer a possible solution, mainly to prepare biodegradable packaging films. Herein, lignocellulosic fraction from SG and SCG has been extracted, solubilized in ZnCl2 solution, and crosslinked through Ca2+ ions to prepare gels and cast biodegradable films. The SG was subjected to three extraction …

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Impact Of Storage And Different Variety On Proximate Composition And Functionality Of Lentils, Hussain Al Naser Jan 2022

Impact Of Storage And Different Variety On Proximate Composition And Functionality Of Lentils, Hussain Al Naser

Electronic Theses and Dissertations

Lentil (Lens culinaris) is an edible pulse and is a nutritious legume. The nutrient value and the application of lentils in other food resources have been well documented. However, there exists a lack of studies that focus on the storage impact of pulses on lentil composition and functionality. The focus of most studies has been on the composition of lentils while the composition relative to and functionality of stored lentils has not been sufficiently evaluated. Therefore, the objective of this research was to determine the effect of storage conditions on the nutrient composition and the functional properties of lentils. Four …

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To Study The Factors Influencing The Sampling Variability On Microbiological Analysis Of Milk And Whey, Ratul Kalita Jan 2022

To Study The Factors Influencing The Sampling Variability On Microbiological Analysis Of Milk And Whey, Ratul Kalita

Electronic Theses and Dissertations

Sampling and analysis are integral parts of dairy processing in quality control, process monitoring and control, and meeting regulatory standards. Accurate sampling is vital to avoid erroneous analysis results and interpretation. The sampling process depends on the appropriateness of sample collection, transportation, storage, and analysis conditions. The bacterial heterogeneity and cluster formation, structural heterogeneity of food, sample unit and size, frequency, and sampling methods, are also crucial in sampling. We aimed to evaluate the influence of sample volume, sampling frequency, and sampling methods in experimental processing lines of whole milk, skim milk, and whey. To standardize the experimental protocols, a …

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A Process To Produce Lactose Phosphate From Dairy Byproducts And Used As An Alternative To Emulsifying Salts In Processed Cheese Food Manufacture, Khalid Ahmed Alsaleem Jan 2022

A Process To Produce Lactose Phosphate From Dairy Byproducts And Used As An Alternative To Emulsifying Salts In Processed Cheese Food Manufacture, Khalid Ahmed Alsaleem

Electronic Theses and Dissertations

Lactose is the primary carbohydrate in most mammals' milk, commonly known as milk sugar. Milk permeate is a by-product of whey protein manufacturing through membrane technologies. It is cost-effective, available, and an excellent source of lactose. Sugar phosphorylation is a technique used to alter sugar's characteristics. It has numerous applications for developing dairy and food products. Lactose-6-phosphate (LP) is an organic compound that switches the hydrogen on lactose by monophosphate that has the potential to function as emulsifying salts (ES). ES, such as disodium phosphate (DSP) and trisodium citrate, have a critical effect on the emulsification characteristics of casein by …

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Beta Glucan Enriched Oat-Wheat Naan - Nutritional, Sensory, And Rheological Evaluation Of Par-Baked Leavened Flatbreads, Anjana Adhikari Jan 2022

Beta Glucan Enriched Oat-Wheat Naan - Nutritional, Sensory, And Rheological Evaluation Of Par-Baked Leavened Flatbreads, Anjana Adhikari

Electronic Theses and Dissertations

No abstract provided.

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Microbial Communities And Nitrogen Dynamics In Prairie And Cropland Soils, Bikram Kumar Das Jan 2022

Microbial Communities And Nitrogen Dynamics In Prairie And Cropland Soils, Bikram Kumar Das

Electronic Theses and Dissertations

Soil microbial communities are affected by many factors, such as soil nitrogen (N) and the quantity of grass-root exudates, changing seasons, fertilization method, plant diversity, and their origin. This holds for both natural and fertilized soils. This research was intended to expand the current understanding of soil microbial interactions associated with ecological functions. The objectives of the research were (I) to characterize prokaryotic soil communities, estimate functional potential, and quantify nitrogen cycle-associated prokaryotic gene expressions across three phases of the growing season, (II) to explore the diazotrophic community composition in a natural system using nifH sequencing as well as 16S …

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Exploring Bioprocessing Technologies For Diverse Industrial Application Of Canola, Ahmad Fawzi N Alhomodi Jan 2022

Exploring Bioprocessing Technologies For Diverse Industrial Application Of Canola, Ahmad Fawzi N Alhomodi

Electronic Theses and Dissertations

Globally, canola is the second largest oilseed crop after soybean, which is processed for the commercial production of high value oil. The industrial processing steps for canola oil extraction include preprocessing (cleaning, pressing, flaking, and cooking), mechanical pressing, and/or organic solvents. This process results in large quantities of protein-rich (~ 40% dry basis) meal as a co-product. The meal is used partially in animal diet (<30% inclusion) due to high levels of antinutritional factors (ANFs) such as high fibers, phytic acid, and glucosinolates, and low metabolizable energy. Thus, this research was designed to examine various bioprocessing technologies (i.e., traditional sprouting, solid state fermentation, submerged state fermentation, co-culture fermentation, mild pretreatments, and their combinations) for possible advancement in canola use. Canola seed sprouting for 6-day period led to an increase in protein content and a reduction in ANFs and oil content of sprouts compared to ungerminated seed. Subsequent submerged state fermentation of 6- day old sprouts using three different strains (Aureobasidium pullulans, Trichoderma reesei and Neurospora crassa) further increased protein content and lowered ANFs. Solid-state fermentation of 144 h old sprouts using A. pullulans, N. crassa and T. reesei enhanced the protein content and reduced ANFs of sprouts. Sprouting canola seed for three days helped in hull removal, leading to high protein meal accompanied by low fiber and phytic acid level. Three-day seed sprouting had no effect on oil yield, but free fatty acid content was higher compared to seed oil. Co-culture fermentation of HECM under solid state process showed maximum reduction in fiber content with co-culture of A. pullulans and N. crassa while a combination of A. pullulans and T. reesei promoted the highest GLS and phytic acid reductions compared to other combinations, which indicated the advantage of coculture inoculation over monoculture in terms of ANFs reduction. Mild pretreatment of HECM using deionized water resulted in washed HECM (WHECM) with lower soluble sugars and GLS compared to untreated HECM, whereas protein and amino acid were concentrated due to the removal of soluble components. WHECM compared to HECM showed higher protein digestibility when fed to rainbow trout. Subsequent mono- and coculture fermentation of HECM and WHECM under submerged process resulted in higher protein and amino acid content and lower ANFs levels compared to uninoculated controls. The results of cellulase, endoglucanase and β-glucosidase activity indicated the crucial role of used substrates, fungi, fermentation modes (solid state/submerged stated) and inoculation methods (mono-/co-culture) on enzyme activities.

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Growing South Dakota (Fall 2021 / Winter 2022), College Of Agriculture, Food And Environmental Sciences Jan 2022

Growing South Dakota (Fall 2021 / Winter 2022), College Of Agriculture, Food And Environmental Sciences

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

[Page] 3 SDSU Launches New Professional Program in Veterinary Medicine
[Page] 7 The 6th Generation
[Page] 9 First-Gen Proud
[Page] 11 Student Success
[Page] 21 Alumni News
[Page] 27 CAFES News and Updates
[Page] 45 Jackrabbits Now and Then: A Current Student and Alumni Q&A

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Nutrition Education And The Effects On Athletic Performance In Collegiate Athletes With Low Energy Availability, Karleigh Sudenga Jan 2022

Nutrition Education And The Effects On Athletic Performance In Collegiate Athletes With Low Energy Availability, Karleigh Sudenga

Health and Nutritional Sciences Graduate Students Plan B Capstone Projects

Current research suggests that collegiate athletes lack nutritional knowledge needed for optimal athletic performance. The absence of basic nutritional knowledge in college athletes puts them at an increased risk for RED-S and its sports performance consequences. The objective of this narrative review is to evaluate the literature on low energy availability in collegiate athletes and determine if nutrition education can improve athletic performance. Multiple studies concluded that nutrition education may improve dietary intake in collegiate athletes, while there was one contradicting study that found that athletes improved nutritional knowledge but did not improve dietary intake. 3 studies found that low …

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Narrative Review Of The Relationship Between Depression And Low Blood Folate And Vitamin B12 Levels, Jennifer Sip Jan 2022

Narrative Review Of The Relationship Between Depression And Low Blood Folate And Vitamin B12 Levels, Jennifer Sip

Health and Nutritional Sciences Graduate Students Plan B Capstone Projects

Depression is a common psychological mood disorder that impacts more than 16 million adults in the United States. It can impact several areas of a person’s life including physical activity, diet and daily activities. The role of nutrition in depression therapy has been researched for several years, with folate and vitamin B12 being the main highlights. Folate and vitamin B12 play a vital role in the development of the central nervous system and conversion of homocysteine to methionine. Past research has found inconsistent findings regarding the relationship between folate, vitamin B12 and their role in depression. This article dives into …

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Influence Of Beef Carcass Weight On Carcass Chilling, Steak Case Life And Quality Traits, Trevor C. Dehaan Jan 2022

Influence Of Beef Carcass Weight On Carcass Chilling, Steak Case Life And Quality Traits, Trevor C. Dehaan

Electronic Theses and Dissertations

The objective of this thesis was to determine the influence of beef carcass weight on chilling and pH decline of beef carcasses, as well as color, case life and tenderness of steaks from the round, loin, rib and chuck. Twelve carcasses were allotted by hot carcass weight (HCW) into Heavyweight (HW) and Lightweight (LW) groups. Temperature decline, pH decline and thermal image temperature were measured in the round, loin, rib, and chuck for approximately 48 hours. Carcass data including 12th rib fat thickness, ribeye area, and marbling score were collected. The Semitendinosus (ST), Longissimus lumborum (LL), Longissimus thoracis (LT) and …

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