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Articles 61 - 90 of 4221
Full-Text Articles in Life Sciences
Dairy & Food Science News, March 2025, Department Of Dairy And Food Science
Dairy & Food Science News, March 2025, Department Of Dairy And Food Science
Dairy & Food Science News
Message from the Department Head
Faculty & Staff Updates
Department Faculty Earn Awards
Midwest Regional Dairy Challenge Competition hosted by SDSU
Small-Scale Dairy Processing Project
Recruitment Updates & Opportunities
Recent Activity
Alumni Mentorship Program
SDSU Food Science Research in the News
Student Updates
Events & Calendar
Probing The Stability Of Designed Protein, Axel Irianni, Shuvo Chakraborty, Maral Afshinpour
Probing The Stability Of Designed Protein, Axel Irianni, Shuvo Chakraborty, Maral Afshinpour
SDSU Data Science Symposium
Naturally occurring proteins have evolved to perform specific biochemical functions, and their amino acid sequences are optimized for those functions rather than for stability. Enhancing protein stability without compromising its function is highly desirable for biotechnological applications, such as vaccine design. Computational protein design algorithms offer a solution by making targeted amino acid changes to the native protein sequence, potentially enhancing stability without the need for the lengthy, labor-intensive, and costly experimental processes typically involved in stabilizing proteins. There are various categories of computational protein design algorithms, and it remains unclear which approach is the most effective. In this study, …
Filters For Forecasting Crop Health: Analyzing And Projecting The Temporal Evolution Of Landsat Ndvi Data Using Dynamic Linear Models And The Kalman Filter, Kamal Albousafi, Hossein Moradi, Jung-Han Kimn
Filters For Forecasting Crop Health: Analyzing And Projecting The Temporal Evolution Of Landsat Ndvi Data Using Dynamic Linear Models And The Kalman Filter, Kamal Albousafi, Hossein Moradi, Jung-Han Kimn
SDSU Data Science Symposium
Accurately forecasting food availability is a critical task. One approach involves utilizing remote sensing data, such as satellite images, to observe the health of crop fields using different Vegetation Indices (VI). The Normalized Difference Vegetation Index (NDVI) provides a sound metric to track the “greenness” of crops over time. In this research, we develop statistical models that capture the dynamics of NDVI time series data to make better predictions of its future values. The median NDVI of the pixels of a farm located in Edmunds County, South Dakota, is obtained using imagery from the Landsat 5 and Landsat 8 satellites, …
Animal Science News (January 28, 2025), Department Of Animal Science
Animal Science News (January 28, 2025), Department Of Animal Science
Animal Science Newsletters
No abstract provided.
Evaluating A Pilot Nutrition Education Curriculum For Autistic Young Adults: Rev It Up! For Asd, Samantha Schaap
Evaluating A Pilot Nutrition Education Curriculum For Autistic Young Adults: Rev It Up! For Asd, Samantha Schaap
Health and Nutritional Sciences Graduate Students Plan B Capstone Projects
Objective: People with autism spectrum disorder (ASD) have poor diet and exercise behaviors, which lead to higher prevalences of overweight/obesity and diet-related diseases. Young adults with ASD are particularly understudied regarding nutrition educational approaches; thus, our study aimed to examine the impact of Rev It Up! for ASD, an adapted Extension nutrition and physical activity curriculum adapted for this population.
Methods: The Rev It Up! curriculum was reviewed by four experts in autistic education to identify adaptations needed for the Rev It Up! for ASD pilot. The intervention was conducted in 10, 90-minute sessions from February-April 2025, where students participated …
Growing South Dakota (Winter 2025), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Winter 2025), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)
[Page] 2 Native Plant Initiative on a mission
[Page] 4 Gees give back
[Page] 7 Christensen named assistant dean
[Page] 8 Fennell honored in plant biology
[Page] 9 New ag communication faculty
[Page] 10 SDSU Extension awards
[Page] 12 Veterinary medicine class welcomed
[Page] 13 Coulter honored
[Page] 14 National beef award winners
[Page] 15 Department celebrates 100 years
[Page] 16 Southeast Research Farm growing
[Page] 18 Saving the flock
[Page] 22 Energize conference inspires
[Page] 24 BeefSD helping producers
[Page] 25 SDSU Extension retirements
[Page] 26 New food safety testing service
[Page] 27 Bringing back bison
[Page] 28 Jackrabbits …
Potential Of Anogenital Distance As A Genetic Selection Trait In Canadian Holstein, G.R. Dodd, F.S. Schenkel, F. Miglior, T.C. Bruinjé, M. Gobikrushanth, J.E. Carrelli, M. Oba, D.J. Ambrose, C.F. Baes
Potential Of Anogenital Distance As A Genetic Selection Trait In Canadian Holstein, G.R. Dodd, F.S. Schenkel, F. Miglior, T.C. Bruinjé, M. Gobikrushanth, J.E. Carrelli, M. Oba, D.J. Ambrose, C.F. Baes
Dairy Science and Food Science Faculty Publications: 2022 to Present
Maintaining optimal fertility in dairy cattle herds is a global challenge that is typically addressed through the genetic selection of fertility indicator traits. However, many of the traits currently implemented in breeding programs are heavily influenced by environmental factors, resulting in a slow rate of genetic improvement. Anogenital distance (AGD) has recently emerged as a promising fertility indicator trait due to its association with favorable reproductive outcomes and its higher heritability estimates compared with currently evaluated traits. This study aimed to enhance the understanding of AGD's genetic potential by estimating its genetic parameters in Canadian Holsteins, assessing the reliability …
Effects Of Essential Oils Alone Or In Combination With Monensin In An In Vitro Model Of Ruminal Acidosis, Jorge L. Bonilla Urbina
Effects Of Essential Oils Alone Or In Combination With Monensin In An In Vitro Model Of Ruminal Acidosis, Jorge L. Bonilla Urbina
Electronic Theses and Dissertations
The objective of this study was to evaluate the effect of essential oils and/or monensin on the concentration of volatile fatty acids (VFA), ammonia, and pH in a ruminal acidosis in vitro model. Red Angus steers (n = 4; BW = 435 ± 9 kg) with ruminal and duodenal cannulas were allocated in a 4 × 4 Latin square design. Treatments were 1) Fed no essential oils (RB) or monensin sodium (MON:CON); 2) Fed RB at a rate of 14 g daily with no Mon (RB+); 3) Fed no RB and fed Mon at 400 mg daily (MON+); 4) Fed …
Integrating Invasion Risk And Habitat Suitability To Guide Invasive Species Management In Wetlands, Lakes, And Rivers, Brenden M. Elwer
Integrating Invasion Risk And Habitat Suitability To Guide Invasive Species Management In Wetlands, Lakes, And Rivers, Brenden M. Elwer
Electronic Theses and Dissertations
Invasive species disrupt ecosystems by altering habitats, competing with native species, and disrupting food webs. The northern Great Plains is an ecologically important region with many wetlands, lakes, and rivers that are under threat from two invasive species, Bighead (Hypophthalmichthys nobilis) and Silver Carp (H. molitrix; bigheaded carp). These large planktivores change the abundance and composition of phytoplankton and zooplankton communities which alters prey for native mussels, fishes, and, potentially, waterfowl. Bigheaded carps have invaded a portion of the Northern Great Plains, and preventing further spread is a primary management goal. My work assists these efforts by providing tools to …
Effects Of Storage Conditions On The Composition, Physical Properties, And Functionalities Of Peas And Lentils, Fatimah Alsaeed
Effects Of Storage Conditions On The Composition, Physical Properties, And Functionalities Of Peas And Lentils, Fatimah Alsaeed
Electronic Theses and Dissertations
Peas (Pisum sativum L.) and lentils (Lens culinaris) are nutritionally rich pulses valued for their high protein, fiber, and starch content. Although their composition and health advantages are widely known, little is known about the effects of long-term storage on their functional qualities and nutritional value. The purpose of this study was to investigate the impact of storage conditions and duration on the proximate composition, physical attributes, and techno-functional traits of lentils and peas. Storage conditions included bin (BIN; -30 to 41°C, 20–98% RH), non-environmentally controlled warehouse (NECW; -23 to 32°C, 25–84% RH), and environmentally controlled warehouse (ECW; 19–21°C, 50–53% …
Assessment And Management Of Dectes Stem Borer, Dectes Texanus Leconte, In South Dakota Soybeans, Zachary Loomis
Assessment And Management Of Dectes Stem Borer, Dectes Texanus Leconte, In South Dakota Soybeans, Zachary Loomis
Electronic Theses and Dissertations
The Dectes stem borer (Dectes texanus LeConte, Coleoptera: Cerambycidae) has emerged as an increasingly significant pest of soybean (Glycine max) in South Dakota. Although historically considered a minor concern, rising populations of this insect have led to significant preharvest lodging and subsequent yield loss in affected fields. The Dectes stem borer's larval feeding within the soybean stem interferes with nutrient flow, and as the season progresses, this internal feeding weakens stem integrity, amplifying lodging risks and causing considerable challenges for farmers and researchers. Since 2017, both the number and severity of Dectes stem borer infestations have been on the rise …
Innovative Approaches To Enhancing The Functional Properties Of Dairy Products: Evaluating Water Hydration Effects On Fat-Free Mozzarella Baking Performance And Impact Of Hyaluronic Acid On The Functional Properties Of Milk, Suresh Ganpatbhai Sutariya
Innovative Approaches To Enhancing The Functional Properties Of Dairy Products: Evaluating Water Hydration Effects On Fat-Free Mozzarella Baking Performance And Impact Of Hyaluronic Acid On The Functional Properties Of Milk, Suresh Ganpatbhai Sutariya
Electronic Theses and Dissertations
In recent years, the dairy sector has experienced a significant rise in the healthy eating trend, with consumers increasingly seeking products that are fat-free, free from added sugars, and high in protein. Additionally, specialized health dairy items enriched with functional ingredients such as probiotics, prebiotics, and bioactive peptides are gaining traction for their added health benefits. This dissertation covers three studies in two domains: the first on water hydration's impact on fat-free mozzarella baking, and the second on the influence of hyaluronic acid, and its combination with kappa-carrageenan, on the physical properties of milk. One such product, Fat-free mozzarella is …
Evaluating The Success Of The Rev It Up! Curriculum Training On The Self-Efficacy Of Sdsu Extension Expanded Food And Nutrition Education Program (Efnep) & Supplemental Nutrition Assistance Program - Education (Snap-Ed) Paraprofessional Educators In Teaching Adolescents, Oluwatemilorun Akinsanya
Electronic Theses and Dissertations
Objective: Evaluate self-efficacy changes among Extension paraprofessional nutrition educators after receiving an adolescent curriculum (Rev It Up!) training. Methods: Paired t-tests on three adapted scales measured changes at pre- (T1), post- (T2), and 1 yr post-intervention (T3): the Teacher Interpersonal Self-Efficacy Scale (TISS), Nutrition Teaching Self-Efficacy Scale (NTSES), and Self-Efficacy and Nutrition Teaching Methods scale (SNTMS). Results: Six educators completed the TISS and NTSES; 5 completed the SNTMS. The TISS showed significant improvement from T1 to T2 only (p= 0.03); the NTSES showed improvement between T1 and T2 (p= 0.01) and T1 and T3 (0.01); and there were no significant …
Evaluation Of Established Perennial Clover Living Mulch And Soil Management Effects On Weed Suppression, Soil Health, And Broccolini Production For The Northern Great Plains, Connor Ruen
Electronic Theses and Dissertations
Vegetable cropping systems have long been reliant on the use of tillage to prepare favorable seedbeds and manage weed pressure. Tillage degrades soil structure, decreases water infiltration and leads to compaction. Due to recent droughts across the central United Stated, it is important for water conservation to improve infiltration and avoid run off and erosion. Changes in weather patterns not only influence drought conditions but bring heat waves that have made early and late planted cool season crops in the brassica family prone bolting, leading to unmarketable produce and economic losses for farmers. This 2023 and 2024 study was designed …
Ovarian Response, Endocrine Environment, And Pregnancy-Associated Glycoproteins In Beef Cows Using The 7 & 7 Synchronization Protocol, Hunter Haberman
Ovarian Response, Endocrine Environment, And Pregnancy-Associated Glycoproteins In Beef Cows Using The 7 & 7 Synchronization Protocol, Hunter Haberman
Electronic Theses and Dissertations
This Review aims to provide an overview of the bovine estrous cycle and pregnancy establishment, beginning with follicular development, luteolysis, maternal recognition of pregnancy and early embryonic development. Manipulating the estrus cycle with synchronization protocols is a critical aspect of the beef industry and has greatly improved the efficiency of artificial insemination. This review will evaluate various strategies to synchronize estrus from the very basic to more advanced synchronization protocols. There are many factors that affect the success of the protocol, and many studies have been done to evaluate the estrus cycle to reach the highest level of success from …
Brachial Plexus Lesions: Uncommon Causes And Clinical Sequelae, Lucy Greenhagen
Brachial Plexus Lesions: Uncommon Causes And Clinical Sequelae, Lucy Greenhagen
Biology and Microbiology Graduate Students Plan B Research Projects
The brachial plexus is a complex network of nerves that transmit motor and sensory information between the spinal cord and upper extremities. Brachial plexus lesions may be caused by a broad range of congential and traumatic conditions. These lesions present a challenge to healthcare providers both for diagnosis and treatment. While variations in the brachial plexus have been widely reported, resources outlining the prevenance and involvement of anatomical variation along with their possible clinical presentation are more limited. The objective of this review is to describe uncommon causes of brachial plexus lesions and the clinical challenges they present for providers. …
Alternative Treatments And Potential Cures For Type 1 Diabetes, Dillon Peterson
Alternative Treatments And Potential Cures For Type 1 Diabetes, Dillon Peterson
Biology and Microbiology Graduate Students Plan B Research Projects
Type 1 diabetes (T1D) is an autoimmune disease that affects multitudes of people without a cost-effective cure. T1D is caused by the immune system reaching a threshold where it then begins to attack the beta cells in the pancreas causing inflammation, which eventually leads to the death of beta cells. Once a large majority of the beta cells die off, the pancreas begins to inadequately supply insulin to the body, which is when the symptoms of T1D begin to emerge. To treat these symptoms, the person must utilize synthetic insulin. The utilization of synthetic insulin, along with the plethora of …
Quantification Of Auxin-Cytokinin Response During Primary Root And Lateral Root Development In Common Bean, Gurdeep Singh
Quantification Of Auxin-Cytokinin Response During Primary Root And Lateral Root Development In Common Bean, Gurdeep Singh
Electronic Theses and Dissertations
Roots support water and nutrient uptake, anchorage, and soil interactions through continuous growth at the primary root tip (PRT). In common bean (Phaseolus vulgaris), new cells are produced in an open root apical meristem and subsequently elongate in the elongation zone, and together these processes drive root tip progression through the soil. Lateral roots (LRs) arise in the differentiation zone, where pairs of pericycle founder cells dedifferentiate, divide asymmetrically, and form lateral root primordia (LRP) that pass through defined developmental stages before emergence. Auxin and cytokinin (CK) are central regulators of both primary root growth and LR development, yet their …
Programming Carcass Composition Through Gestational Nutrition, Sydni Elise Borders
Programming Carcass Composition Through Gestational Nutrition, Sydni Elise Borders
Electronic Theses and Dissertations
The objective of this study was to evaluate the influence of maternal nutrient restriction during mid-gestation on the performance of the dam, feeding performance, carcass composition, and genetic expression in the offspring. Cows (n = 46) were randomly assigned to one of two treatments based on global nutrient intake: 1) fed to achieve and/or maintain a BCS of 5 or 6 (Positive Energy Status [PES]; n = 24) or 2) fed to lose one BCS during 99 days of mid-gestation (Negative Energy Status [NES]; n = 22). Cows in NES had greater decreases (P < 0.05) in body fat stores and muscle mass, elevated NEFA concentrations, and displayed decreased (P < 0.05) DMI, HP, and GHG emissions. There were no differences in milk components or volume produced between treatments (P > 0.05). There were no differences in …
Impact Of Minimally Processed Red Meat On Biomarkers Of Cognitive Decline, Saba Vaezi
Impact Of Minimally Processed Red Meat On Biomarkers Of Cognitive Decline, Saba Vaezi
Electronic Theses and Dissertations
No abstract provided.
Evaluation Of High-Moisture Ear Corn As A Roughage Source In Finishing Diets Fed To Beef Steers, Riley J. Leeson
Evaluation Of High-Moisture Ear Corn As A Roughage Source In Finishing Diets Fed To Beef Steers, Riley J. Leeson
Electronic Theses and Dissertations
The objective of this study was to evaluate the feedlot performance, rumination activity, and carcass characteristics of high moisture ear corn (HMEC) as a roughage source in finishing diets fed to beef steers. Backgrounded steers (n = 191; initial shrunk weight [4% BW] = 449 kg 23.9 kg) were assigned randomly to 1 of 24 pens (8 steers/pen) with pens randomly assigned to one of four dietary treatments (6 pens/treatment): control diet with hay fed at 10% roughage equivalency (RE; HAY10), or HMEC at either 14% (EAR14), 10% (EAR10), or 6% (EAR6) RE. High-moisture ear corn was assumed to …
Finishing Location And Forage Diversity Influences Carcass Characteristics, Meat Quality Attributes, Terroir, And Color Stability Of Grass-Finished Bison Bulls, Garrett Tyler Weldy
Finishing Location And Forage Diversity Influences Carcass Characteristics, Meat Quality Attributes, Terroir, And Color Stability Of Grass-Finished Bison Bulls, Garrett Tyler Weldy
Electronic Theses and Dissertations
The overall objective of this thesis is to determine the influence of finishing location and forage diversity on carcass characteristics, meat quality, terroir, and color stability of grass-finished bison bulls. The specific objectives were 1) Determine the effect of finishing location on carcass characteristics, meat quality attributes, and terroir of grass-finished bison bulls, 2) Investigate the effect of forage diversity on the carcass characteristics, meat quality attributes, and terroir of grass-finished bison bulls, and 3) Determine the effect of finishing location on the meat color stability of grass-finished bison bulls. Overall, results indicate that finishing location influenced carcass characteristics, objective …
The Influence Of Bottom-Up And Top-Down Effects On The Density And Distribution Of Common Leopards In The Eastern Himalayas, Karma Choki
Electronic Theses and Dissertations
Leopards (Panthera pardus fusca) are widely distributed across Asia, yet their conservation is overshadowed by the conservation status of other flagship predators like tigers (Panthera tigris), in the Eastern Himalayas. Despite their ability to coexist with other large carnivores, leopard populations are shaped by intricate ecological interactions and increasing human pressures. This thesis investigates the abundance and density, habitat use, and drivers of persistence of leopards across Bhutan to inform multi-species carnivore conservation planning. My first chapter provides an overview of the ecological roles of large carnivores and how they persist on the landscape. I review the mechanisms that facilitate …
Comparative Evaluation Of Fungal Strains For The Bioprocessing Of Soybean Hulls Using Cheese Whey As Fermentation Medium, Ruchita Bhattarai
Comparative Evaluation Of Fungal Strains For The Bioprocessing Of Soybean Hulls Using Cheese Whey As Fermentation Medium, Ruchita Bhattarai
Electronic Theses and Dissertations
Globally, soybean is the most widely cultivated oilseed crops, and serve as the primary source of cooking oil, contributing to around 50% of global oilseed production. During the industrial processing of soybean oil, a significant amount of soybean hull (SH) is produced, which makes up about 8% of the grain yield, resulting in approximately 18–20 million tons of hulls, one of the largest by-products in the soybean industry. The hulls have limited commercial value and are primarily used as fiber additives in dairy cattle feed, but a large portion is still discarded as agricultural waste. Similarly, cheese whey (CW), a …
Quantifying Landscape Variability Of Dynamic Soil Properties In The James River Valley, Eastern South Dakota, Sage Reuter-Schmitt
Quantifying Landscape Variability Of Dynamic Soil Properties In The James River Valley, Eastern South Dakota, Sage Reuter-Schmitt
Electronic Theses and Dissertations
Dynamic soil properties (DSP) are a great tool for monitoring land-use change, and they are frequently used as soil health metrics. The NRCS and other soil researchers often use repeating, single-point or nested-point DSP studies to monitor and better understand the effects of land management decisions. While these studies capture the temporal variability of DSPs, they overlook the field-scale spatial variability of DSPs. Soil organic carbon (SOC) provides critical services to the ecosystem and other environments. These traits, as well as its susceptibility to management decisions, make SOC an important soil health indicator and DSP. Measuring SOC is often time …
The Spatial And Temporal Dimensions Of Plant–Soil Feedback In Native Perennial Monocultures, Bret Lang
The Spatial And Temporal Dimensions Of Plant–Soil Feedback In Native Perennial Monocultures, Bret Lang
Electronic Theses and Dissertations
Plant-soil feedbacks (PSFs) describe how plants change their soil environment in ways that can either negatively or positively affect subsequent plant growth. In doing so, they offer an opportunity to connect ecological processes with agricultural practice. My dissertation examines PSFs created by native perennial monocultures, commonly used for native seed production, across time and space, and through soil legacies. Specifically, I focus on how plant species identity shapes both soil nutrient and soil microbial community responses. To address these questions, I conducted field experiments with monocultures of five forb species native to South Dakota and established plots with these species …
Impacts Of Early/Mid-Gestation Shearing On Umbilical Blood Flow And Lamb Birth Weight, Mara Johnson
Impacts Of Early/Mid-Gestation Shearing On Umbilical Blood Flow And Lamb Birth Weight, Mara Johnson
Electronic Theses and Dissertations
Studies outside the USA have reported that shearing pregnant ewes during mid to late gestation increases lamb birth weight. Our hypothesis was that shearing pregnant ewes on day 50 of gestation would increase umbilical blood flow (UBF), fetal size, lambing and placental weights. Twenty-eight Polypay ewes were randomly assigned to two treatments: shorn (S) and sham-shorn (Control, CON) and divided in singleton (S: n=4; CON: n=4), twins (S: n=5; CON: n=5) and triplets (S: n=5; CON: n=5). Umbilical BF and fetal and placental measurements were obtained via ultrasonography every 10 days from day 50 to 110 of gestation. Lamb birth …
Isolation And Characterization Of Rhizobia Bacteria From Midwest Soils, Jr Loya
Isolation And Characterization Of Rhizobia Bacteria From Midwest Soils, Jr Loya
Electronic Theses and Dissertations
Symbiotic bacteria, known as rhizobia, can colonize the roots of legume plants and then convert atmospheric nitrogen into a usable form by the host through the process called biological nitrogen fixation (BNF). Many of these bacteria produce other plant-growth-promoting benefits, such as nutrient acquisition, phytohormone production, and the modification of plant stress responses. Agricultural inoculants made from these bacteria have helped reduce the need for man-made nitrogenous fertilizers, known causes of pollution and eutrophication. There are additional benefits in developing bacteria inoculants local to regional soils. The ability to survive and compete in Midwest soil and climates present an opportunity …
Development Of A Bean Cookbook To Assist Families With Low Income Utilize Legumes Provided In Nutrition Assistance Programs, Kira Moneke
Health and Nutritional Sciences Graduate Students Plan B Capstone Projects
Introduction: This project aimed to create a cookbook designed to help individuals receiving food assistance through programs like WIC, FDPIR, TEFAP, SNAP, and local food pantries, utilize beans, peas, and legumes in their meals. The focus was on providing easy, accessible recipes using six different types of beans to improve diet quality.
Methods: The cookbook was developed considering limited cooking skills, equipment, literacy, and time that may be barriers to preparing healthy food for low-income adults. Selected recipes were compiled into an educational cookbook.
Results: Recipes were tested and developed for six types of beans and aquafaba. …
Assessing The Prevalence Of Food Security Among South Dakotan Families Who Have Children With Disabilities, Erica Declark
Assessing The Prevalence Of Food Security Among South Dakotan Families Who Have Children With Disabilities, Erica Declark
Health and Nutritional Sciences Graduate Students Plan B Capstone Projects
Background
Almost 13% of U.S. families experienced food insecurity in 2022; i.e., an inability to acquire enough food to meet household members’ needs. Many factors can influence food security status, such as environmental conditions, social factors, and financial costs. Families with children who have disabilities may be at higher risk for food insecurity due to additional financial stressors related to these children’s care.
Purpose
The purpose of this study was to determine the prevalence of food insecurity among South Dakota families who have children with disabilities. We hypothesized that South Dakota families with children with disabilities are at an increased …