Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Agriculture (1637)
- Animal Sciences (1392)
- Plant Sciences (1176)
- Agricultural Economics (429)
- Horticulture (356)
-
- Physical Sciences and Mathematics (318)
- Agronomy and Crop Sciences (292)
- Dairy Science (260)
- Social and Behavioral Sciences (198)
- Ecology and Evolutionary Biology (196)
- Microbiology (186)
- Medicine and Health Sciences (185)
- Food Science (176)
- Biology (166)
- Environmental Sciences (153)
- Nutrition (147)
- Beef Science (142)
- Earth Sciences (99)
- Aquaculture and Fisheries (90)
- Engineering (86)
- Natural Resources Management and Policy (85)
- Agricultural Science (81)
- Biochemistry, Biophysics, and Structural Biology (80)
- Entomology (78)
- Meat Science (73)
- Geography (72)
- Veterinary Medicine (68)
- Soil Science (66)
- Education (65)
- Keyword
-
- Dairy plant (51)
- Dairy processing (50)
- Dairy science (50)
- Beef (40)
- South Dakota (40)
-
- Food science (39)
- Home economics department (39)
- Cattle (33)
- Feedlot (30)
- Agronomy department (29)
- Nutrition (29)
- 4-h club work (28)
- Economics (27)
- Steers (26)
- Agricultural economics (25)
- Corn (24)
- Agriculture department (20)
- Management (19)
- Soybean (19)
- Beef cattle (18)
- Livestock (18)
- Humans (17)
- Diet (16)
- Boys girls club work (14)
- Digestibility (14)
- Range (14)
- Breeding (13)
- Growth performance (13)
- Horticulture forestry department (13)
- Male (13)
- Publication Year
- Publication
-
- Electronic Theses and Dissertations (1124)
- SDSU Extension Circulars (389)
- North and South Dakota Horticulture (335)
- Agricultural Experiment Station and Research Farm Annual Reports (254)
- Agricultural Experiment Station Agricultural Economics Pamphlets (1941-1991) (207)
-
- South Dakota Farm and Home Research: 1949 -1998 (177)
- Agronomy, Horticulture and Plant Science Faculty Publications (146)
- Natural Resource Management Faculty Publications (128)
- Economics Research Reports (1969 - 2017) (91)
- Health and Nutritional Sciences Faculty Publications (52)
- Little International "Little I" Agricultural Exposition Catalogs (51)
- The Journal of Undergraduate Research (50)
- Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences) (45)
- SDSU Beef Day 2020 Summary Publication (45)
- Dairy Science and Food Science Faculty Publications: 2022 to Present (44)
- Biology and Microbiology Graduate Students Plan B Research Projects (43)
- College of Natural Sciences Newsletters and Reports (42)
- Dairy Digest (42)
- iLEARN Teaching Resources (40)
- South Dakota Beef Report, 1986 (34)
- South Dakota Swine Research Report, 2001 (34)
- Animal Science Newsletters (28)
- Economics Pamphlet Series (1985-2016) (27)
- South Dakota Beef Report, 2005 (27)
- Animal Science Faculty Publications (25)
- South Dakota Beef Report, 1991 (25)
- South Dakota Beef Report, 1995 (25)
- South Dakota Beef Report, 1989 (23)
- South Dakota Beef Report, 1994 (22)
- South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1971 (22)
- Publication Type
- File Type
Articles 211 - 240 of 4221
Full-Text Articles in Life Sciences
Artificial Intelligence And Image-Based Phenotyping For Monitoring Morpho-Physiological Dynamics In Grapevines, Prakriti Sharma
Artificial Intelligence And Image-Based Phenotyping For Monitoring Morpho-Physiological Dynamics In Grapevines, Prakriti Sharma
Electronic Theses and Dissertations
Plant phenotypic features are essential for determining the structure, composition, and function of plants. These traits are controlled by both environmental variables and genetic makeup. Conventional manual methods of phenotyping, although time-consuming and not very accurate, have laid the foundation for more modern approaches such as high throughput phenotyping (HTP). HTP utilizes imaging, sensor networks, robotics, and data analytics to automate the process of collecting and analyzing data. This study utilizes hyperspectral and digital imaging techniques to quantify physiological, biochemical, and morphological characteristics in grapevines. Hyperspectral imaging was leveraged to collect spectral data for evaluating physiological factors, whereas digital imaging …
Effects Of Isoacids Supplementation In Lactating Cows’ Diet Varying In Forage Fiber Level On Performances, Feed Efficiency, And Milk Fatty Acids Profile, Sumon Ahmed
Electronic Theses and Dissertations
No abstract provided.
Evaluation Of Soybean Meal Versus Distillers Co-Products As A Protein Supplement For Finishing Beef Cattle: Effects On Growth Performance, Carcass Characteristics, And Efficiency Of Dietary Net Energy Utilization, Cassidy R. Ross
Electronic Theses and Dissertations
Two randomized complete block design experiments were conducted to: 1) examine the effects of soybean meal with or without additional soybean hulls in replacement of modified corn distillers grains plus (MDGS) solubles on growth performance efficiency of dietary net energy utilization and carcass traits responses in finishing beef steers, 2) determine if partial or complete replacement of dried distillers grains plus solubles (DDGS) with solvent-extracted soybean meal (SBM) in diets based upon high-moisture ensiled corn influences growth performance, efficiency of dietary net energy utilization, sera urea-N (SUN) concentrations, or carcass traits in finishing beef steers. Experiment 1 was a 118-d …
Estimating South Dakota’S Capacity To Meet K-12 School Meal Fruit And Vegetable Requirements With State-Grown Produce, Bridgette Bienias
Estimating South Dakota’S Capacity To Meet K-12 School Meal Fruit And Vegetable Requirements With State-Grown Produce, Bridgette Bienias
Electronic Theses and Dissertations
Objective: Quantify South Dakota (SD)’s capacity to procure locally-sourced fruit and vegetables (FVs) for K-12 school meals.
Methods: Secondary analysis of 2017 SD agricultural census and school meal data. Yields were converted to edible cups of FVs using school meal guidelines provided by the U.S. Department of Agriculture. Student enrollment and meal redemptions were used to estimate the number of FV cups needed.
Results: Estimated SD FV production met minimum total K-12 cup requirements, except for total fruit (66%) and dark green vegetables (80%). Legumes supplied 77% of the total cups of vegetables produced in 2017, whereas dark green vegetables …
Integrating Early Season Clover Cover Crops As A Living Mulch In Broccoli And Transitional Organic Winter Squash Production In Eastern South Dakota, Alexis Rose Barnes
Integrating Early Season Clover Cover Crops As A Living Mulch In Broccoli And Transitional Organic Winter Squash Production In Eastern South Dakota, Alexis Rose Barnes
Electronic Theses and Dissertations
Managing weeds, improving soil health, and reducing the use of plastic mulch continue to be priorities for South Dakota vegetable farmers. Farmers have expressed an interest in integrating cover crops into their farm systems. Clover cover crops used as a living mulch within and along cash crop rows may aid in weed suppression, nitrogen fixation, and prevent soil erosion. However, prior research has shown challenges of incorporating living mulch due to yield decreases. Research conducted in 2022 and 2023 in eastern South Dakota investigated the effects of four clover and four in-row soil management treatments on broccoli and organic winter …
Utilizing Soil Sensors To Assess Soil Health And Investigating Cover Crops Impact On Methane Emission, Shailesh Pandit
Utilizing Soil Sensors To Assess Soil Health And Investigating Cover Crops Impact On Methane Emission, Shailesh Pandit
Electronic Theses and Dissertations
Soil health is influenced by climate change, cultural practices, topography, crop rotations, cover crops, soil parent materials, and soil biota. Interactions between these factors can improve or reduce soil health. This thesis investigates two topics, using soil sensors to provide a rapid assessment of soil health, and the impact of cover crops on soil biological activity and greenhouse gas emissions. Chapter 1 explores the use of two types of sensors to measure apparent electrical conductivity (ECa) and provides examples on the use of these sensors. Even though both sensors measure ECa using different processes, they provide useful information about temporal …
Nitrogen Fertilizer Placement And Rate Impacts Sunflower Seed Yield, Oil And Protein Content, Rojina Kafle
Nitrogen Fertilizer Placement And Rate Impacts Sunflower Seed Yield, Oil And Protein Content, Rojina Kafle
Electronic Theses and Dissertations
South Dakota accounts for about 36% of the total US commercial sunflower production and nitrogen is a major input. Costs related to N fertilizer demand economically optimum N rates. This study investigated the impact of the N fertilizer placement method (broadcast vs band) and rate (0, 28, 56, 84, 112, 140 kg N ha-1) on leaf chlorophyll content, head diameter, seed yield, seed oil, and protein concentration of three sunflower hybrids in 2022 and 2023. The experiment was conducted at Brookings (eastern SD- conventional till, 66 cm rainfall) using an oil-type hybrid and at central SD sites (no-till, 57 cm …
Increasing Soy Products Inclusion In Swine Diets To Improve Growth Performance, Health, And Pork Quality, Ashir Foreman Atoo
Increasing Soy Products Inclusion In Swine Diets To Improve Growth Performance, Health, And Pork Quality, Ashir Foreman Atoo
Electronic Theses and Dissertations
Despite its excellent nutritional profile, soybean meal (SBM) is limited in nursery pig diets due to its anti-nutritional factors (ANFs), which young pigs tolerate poorly. In the first study, strategies to mitigate these effects included supplementation with enzymes, alone or with acidifiers. A total of 240 weaned pigs (5.9 ± 0.8 kg average body weight [BW]) were assigned in randomized complete block design to five dietary treatments: low, medium, or high SBM diets, high SBM with multienzyme, and high SBM with multienzyme plus acidifier. Diets were fed in three phases: phase 1 (0–1 weeks), phase 2 (1–3 weeks), and phase …
Translocations Of North American Bison Across Large Climatic Gradients: Impacts On Thermoregulation, Body Size, And Helmintic Infection, Hayden Wolfe
Electronic Theses and Dissertations
Every year, one-eighth of all North American bison (Bison bison) are translocated, often across large climatic gradients. Over the last 16 years bison have been translocated from Wind Cave National Park in South Dakota to establish six herds across the United States central grasslands in Iowa, Missouri, Illinois, Indiana, and Kansas. Influence of climatic gradients on herd-level thermoregulation, body size, and helmintic infection were evaluated. Overall, 1174 thermal images and 1050 fecal samples were collected between 2021 and 2023. Physiological heat flux was used to measure thermoregulation, asymptotic body mass (ABM) was used for body size, and helminth genera abundance …
Beef Hot Carcass Weight Influences Proteolysis, Clay J. Carlson
Beef Hot Carcass Weight Influences Proteolysis, Clay J. Carlson
Electronic Theses and Dissertations
The objective of this thesis was to determine the influence of beef hot carcass weight on proteolysis to better understand early postmortem proteolysis. Beef tenderness formation is influenced by various factors, such as temperature decline and proteolysis. Limited focus has been given to the effects of carcass weight on proteolysis. This study aimed to investigate the influence of increased beef hot carcass weight (HCW) on proteolysis of four muscles (serratus ventralis, longissimus thoracis, longissimus lumborum, and semitendinosus) during early postmortem aging times. Beef steers (n =12) were harvested and categorized into two weight groups: lightweight (LW; HCW = 349 ± …
Improving Stream Connectivity In South Dakota, Colton Rainier Curtis
Improving Stream Connectivity In South Dakota, Colton Rainier Curtis
Electronic Theses and Dissertations
Stream connectivity is crucial for fish movement and genetic diversity in fragmented landscapes. Road-crossings often act as barriers, disrupting hydrology and isolating fish populations. The Southeast Aquatic Resources Partnership (SARP) has developed rapid road-crossing assessment protocols and tools to prioritize restoration projects. However, managers lack tools for planning, directing, and initiating roadcrossing assessments. Managers also require modeling approaches to effectively identify and monitor road-crossings across dynamic stream networks. Presented here is a case study offering a roadmap for effective implementation of collaborative road-crossing assessments and prioritization of remediation projects, alongside an exploration of predictive modeling approaches to identify problematic crossings …
Elucidating The Role Of Sialic Acid In Tumorigenic Pathways, Kakali Das
Elucidating The Role Of Sialic Acid In Tumorigenic Pathways, Kakali Das
Electronic Theses and Dissertations
Hypersialylation is a prognostic biomarker in cancer cells. The upregulated sialic acid expression on cancer cells facilitates tumorigenesis by playing a critical role in cancer cell proliferation and growth, immune evasion, cell signaling, and metastasis by interacting with various carbohydrate-binding molecules. Sialic acids on cancer cell surface undergo various modifications like O-acetylation at positions 4,7,9 de-acetylation and addition of glycolyl group at position 5. In our first chapter we analyzed the effect of de-acetylated sialic acid on migration via selectin binding in colon cancer cell line HCT116 and in lung cancer cell line A549. Selectins are calcium-dependent cell adhesion molecules …
Growing South Dakota (Winter 2024), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Winter 2024), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)
[Page] 3 Continuing a Leadership Journey
/="/">[Page] 5 CAFES Leadership Team Grows
/="/">[Page] 7 Award-Winning Faculty & Staff
/="/">[Page] 9 New Endowment Holders Recognized
/="/">[Page] 10 Inaugural Precision Livestock Field School Offered at SDSU Cottonwood Field Station
/="/">[Page] 11 SDSU Celebrates Professional Program in Veterinary Medicine Students [Page] 13 Clay Carlson, SDSU Meat Science Graduate Student Approaches School and Life with Winning Mindset
/="/">[Page] 15 SDSU Alumni has been selected as the Head Coach of the South Dakota State University Livestock Judging Team
/="/">[Page] 16 Livestock Units Promote Hands-On Learning & Premier Research …
Evaluation Of A Novel Corn Fermented Protein Ingredient, Probiotics, And Postbiotics On Nursery Pig Growth Performance And Gut Health, Juan F. Castillo Zuniga
Evaluation Of A Novel Corn Fermented Protein Ingredient, Probiotics, And Postbiotics On Nursery Pig Growth Performance And Gut Health, Juan F. Castillo Zuniga
Electronic Theses and Dissertations
Weaning is a necessary step in pig production. After weaning, pigs are subjected to various nutritional, psychological, and environmental stresses. The weaning period is an important period for the intestinal development of the pig. During this time, digestion, immunity, metabolism, and various other aspects of the pig change rapidly. Therefore, providing high-quality feed ingredients is crucial to encourage the newly weaned pig to start consuming solid feed. Two independent studies were conducted to determine if the inclusion of: 1) corn fermented protein (CFP) or 2) probiotics or postbiotics impact nursery pigs' growth performance and gut health. The first experiment utilized …
The Relationship Between Soil Test Phosphorus And Soil Biology - A Natural Management Of Soil Phosphorus Through Conservation Practices, Clarence Frederick Winter
The Relationship Between Soil Test Phosphorus And Soil Biology - A Natural Management Of Soil Phosphorus Through Conservation Practices, Clarence Frederick Winter
Electronic Theses and Dissertations
Phosphorus (P) management is an ongoing challenge in modern agriculture. Due to the importance of P in agriculture, P fertilizer additions are made throughout the U.S. to avoid nutrient-depleted soil. However, the application of P is problematic, as an excess of P in an agricultural system elevates the risk of environmental degradation, and current synthetic P sources are a fleeting resource. Additionally, a majority of P found in agricultural soils are insoluble, in the form of secondary and primary P minerals, making this large pool of P unavailable to plants. Fortunately, soil fungi organisms, such as arbuscular mycorrhizal fungi (AMF) …
Identification And Characterization Of Three Novel Rumen Bacterial Species In Sheep Fed A Concentrate Diet, Reid Frederick Anema
Identification And Characterization Of Three Novel Rumen Bacterial Species In Sheep Fed A Concentrate Diet, Reid Frederick Anema
Electronic Theses and Dissertations
Sheep production in the United States is a popular venture for both small farmers and large enterprise owners, as there is a market for end products such as wool and meat. One major factor of raising sheep is nutrition as an adequate diet will allow an animal to reach its full genetic potential for growth. With that in mind, the composition of the diet must be formulated to benefit the animal. Ruminants have the ability to use a variety of plants that are often inedible for humans to create products that humans can consume. These varying feedstuffs, whether they include …
Ecophysiology Of Bradyrhizobium Diazoefficiens Usda 110, Armaan Kaur Sandhu
Ecophysiology Of Bradyrhizobium Diazoefficiens Usda 110, Armaan Kaur Sandhu
Electronic Theses and Dissertations
With increasing demand for soybean, maximizing plant yield is important yiel is dependent on nitrogen availability, but nitrogen fertilizers can meet the plant's needs but have severe environmental impacts. An economically and environmentally sustainable approach is to enhance nitrogen availability through Biological Nitrogen Fixation by symbiotic rhizobia, Bradyrhizobium, an efficient nitrogen fixer for soybean. This symbiosis begins with attachment of rhizobia to legume roots. Root and rhizobia surface properties play a significant role in this attachment. Another major factor affecting root colonization is bacterial competition ability. There is a lack of knowledge on the role of bacterial surface properties, competition …
Development And Characterization Of Transparent Soil Using Biodegradable Polysaccharides, Said Badshah
Development And Characterization Of Transparent Soil Using Biodegradable Polysaccharides, Said Badshah
Electronic Theses and Dissertations
No abstract provided.
Investigating The Role And Mechanism Of Host Cell Death In Porcine Reproductive And Respiratory Virus Infection, Michelle Steyn
Investigating The Role And Mechanism Of Host Cell Death In Porcine Reproductive And Respiratory Virus Infection, Michelle Steyn
Electronic Theses and Dissertations
No abstract provided.
Portable X-Ray Fluorescence Spectrometry For Sensing Salinity And Sodicity In Glacial Northern Great Plains Soils With Machine Learning Models, Adam Devlin
Electronic Theses and Dissertations
Saline and sodic soils are an increasing concern across the Northern Great Plains (NGP) due to factors of climate change and land management that are drawing geologically derived salts to the land surface. Traditional laboratory assessments, such as electrical conductivity (EC) and sodium adsorption ratio (SAR), are time and resource consumptive. Portable X-ray fluorescence (PXRF) may be a viable proximal sensing alternative, as it is able to provide elemental data in minutes, in situ or ex situ, and can directly quantify salinity-associated elements like Ca, Mg, and S. PXRF paired with predictive models has proven useful for a range of …
The Spatial Ecology Of Plains Spotted Skunks In South Dakota: Insights From Species Distribution, Resource Selection, And Co-Occurrence Models, Kara M. White
Electronic Theses and Dissertations
The plains spotted skunk (Spilogale interrupta) is a data-deficient small carnivore native to the central plains of North America that has experienced significant population declines. My dissertation investigates the species’ distribution, habitat associations, and interspecific interactions in South Dakota, providing crucial information for conservation actions. In Chapter 1, I developed ensemble distribution models on a broad scale, incorporating species location data from 1985–2020, environmental factors, and six predictive modeling algorithms. I identified key predictors including mean temperature diurnal range and proportion of area as pasture, and estimated ~31,300 km2 of potential habitat, predominately in eastern South Dakota. In Chapter 2, …
Longevity In Afrikaner Cattle: A Survival Analysis, Allison M. Bot Steffl
Longevity In Afrikaner Cattle: A Survival Analysis, Allison M. Bot Steffl
Electronic Theses and Dissertations
The Afrikaner breed of cattle is indigenous to South Africa and due to their hardiness was once the most popular breed amongst farmers. The objectives for this study were to: (1) estimate environmental effects (age at first calving, season) and (2) genetic variance affecting longevity in Afrikaner cattle using survival analysis and a Weibull model and (3) evaluate the effect of the Infusion Project on longevity utilizing a Cox model. For the first objective, age at first calving impacted longevity as younger age at first calving was associated with decreased longevity. Season of birth and year of birth also impacted …
Role Of Interferon Induced Transmembrane Protein 3 (Ifitm3) And Neural Precursor Cell Expressed Developmentally Down Regulated Protein 4 (Nedd4) In Seneca Virus A (Sva) Replication, Shamiq Aftab
Electronic Theses and Dissertations
In this study, we studied the role of IFITM3 in SVA replication in vitro by silencing the endogenous IFITM3 in NCI-H1299 cells. An average of 1.94-fold increase in SVA VP2 expression and an average of 4.4-fold increase in supernatant virus titer was observed after 24h SVA isolate SD15-26 infection. We have indeed observed an increase in viral mRNA copies by an average of 5-fold in IFITM3 silenced NCI-H1299 cells at 8 hpi indicating that IFITM3 restricts SVA replication post virus attachment and entry. A positive correlation between interferon-alpha induced IFITM3 upregulation and reduced SVA replication was observed. To further confirm …
Soil Responses To Eastern Redcedar (Juniperus Virginiana L.) Afforestation And Prescribed Fire In South-Central South Dakota, Robert Schaefer
Soil Responses To Eastern Redcedar (Juniperus Virginiana L.) Afforestation And Prescribed Fire In South-Central South Dakota, Robert Schaefer
Electronic Theses and Dissertations
Research was conducted in 2019 and 2020 on rangelands located in south-central South Dakota assessing a number of physical, chemical, and biological properties of mineral ustepts and ustents soils associated with eastern redcedar (ERC) (Juniperus virginiana) afforestation and prescribed fire. ERC afforestation appeared to be associated with significantly higher field-condition soil aggregate stability, cation exchange capacity (CEC), soil pH, and fungi:bacteria (F:B) as well as significantly lower soil moisture, nitrate-N, phosphorus, bacteria biomass, and Gram-positive:Gram-negative (GP:GN) bacteria compared to native grassland conditions, while other mineral soil properties appeared relatively unaffected. Compared to soil conditions under dense, living ERC canopies, prescribed …
Regulatory Landscapes: Transcriptome And Microrna Regulated Senescence And Dormancy In Grapevines And Gene Regulatory Networks In Nitrogen-Fixing Soybean Nodules, Ramandeep Kaur
Electronic Theses and Dissertations
Grapevine and soybean are two economically important crops, each with unique yet equally crucial physiological processes that profoundly influence their growth and productivity. Grapevine (Vitis sp.), a temperate fruit crop, employs dormancy to withstand winter challenges and can grow in various regions worldwide. Understanding the molecular mechanisms involved in dormancy in Vitis species, is crucial for improving grapevine selection for resilience in northern temperate regions. Dormancy induction is modulated by decreasing photoperiods in some Vitis species, enhancing their ability to prepare for winter stress conditions. Understanding the molecular underpinnings of response to photoperiod will provide potential markers for selecting genotypes …
Impacts Of Cover Crops And Diversified Crop Rotations On Soil Biochemical Properties, Hydrophysical Characteristics, And Water Dynamics In Long-Term No-Till Cropping Systems, Sainfort Vital
Electronic Theses and Dissertations
This research assessed the impacts of crop rotations and cover crops on the soil's biochemical and hydrophysical properties within long-term no-till systems. The research was conducted at the Southeast Research Farm, near Beresford, South Dakota. The crop rotations contain two levels: 4-year corn (Zea mays L.)-soybean (Glycine max L.)-oat (Avena sativa L.)-rye (Secale cereale L.) (CSOR) and 2-year corn-soybean (CS) rotations. The cover crop factors also had two levels within each rotation treatment: cover crops (CC) and no cover crops (NCC). All plots were managed under long-term no-till (NT), with soils mapped as Egan silty clay loam (fine-silty, mixed, superactive, …
Methods For Optimizing Detection And Evaluating Habitat Use Of North American River Otters In South Dakota, Jessica Speiser
Methods For Optimizing Detection And Evaluating Habitat Use Of North American River Otters In South Dakota, Jessica Speiser
Electronic Theses and Dissertations
North American river otters (Lontra canadensis) play a critical role as an apex predator in riverine ecosystems. A challenging species to survey using traditional methods, they remain understudied in non-forested regions, such as the Northern Great Plains, where habitat degradation and landscape fragmentation may reduce habitat quality and availability and disrupt landscape connectivity. This thesis aims to improve detectability and investigates the habitat use of river otters in South Dakota to better understand habitat needs of otters and improve their continued recovery and management. My first chapter provides a brief overview of river otters and their ecological roles in freshwater …
Respiratory Disease In Bighorn Sheep: A Varied Investigation Of Immunization, Transmission, And Detection, Katelin Frerichs
Respiratory Disease In Bighorn Sheep: A Varied Investigation Of Immunization, Transmission, And Detection, Katelin Frerichs
Electronic Theses and Dissertations
Respiratory disease has historically been recognized as a limiting factor to wild bighorn sheep (Ovis canadensis) herds throughout North America with epizootics resulting in large-scale die offs and reductions in recruitment. The primary etiologic agent associated with pneumonia outbreaks in bighorn sheep is Mycoplasma ovipneumoniae. This bacterial pathogen is frequently carried asymptomatically by domestic sheep (Ovis aries) and goats (Capra hircus); however, when these domestic hosts come in contact with and spread this pathogen to bighorns, the disease can cause epizootics and large-scale mortality. Domestic sheep strains are more commonly detected in bighorn sheep than domestic goat strains, and previous …
Lakota Ethnobotany For South Dakota Middle School Students, Mikayla .Janis, Michael. A. Little Eagle, Madhav P. Nepal
Lakota Ethnobotany For South Dakota Middle School Students, Mikayla .Janis, Michael. A. Little Eagle, Madhav P. Nepal
iLEARN Teaching Resources
In this engaging lesson, students use mobile apps to identify local plant species in their school yards, along nature trails, or in any designated areas on the reservation. They will document the common names and morphological characteristics of the identified plants, explore native names, and uses, as well as the roles of plants in biogeochemical cycles. This immersive experience not only deepens students’ interest in science but also allows them to understand the bigger role of plants in the natural balance, enhancing their appreciation of the deeper connections between the Lakota culture and plant species.
Effects Of Dietary Rumen-Protected Choline Supplementation To Periparturient Dairy Cattle On Inflammation, Metabolism, And Performance During An Intramammary Lipopolysaccharide Challenge, Turner H. Swartz, Barry Bradford, Laman Mamedova, Kari Estes
Effects Of Dietary Rumen-Protected Choline Supplementation To Periparturient Dairy Cattle On Inflammation, Metabolism, And Performance During An Intramammary Lipopolysaccharide Challenge, Turner H. Swartz, Barry Bradford, Laman Mamedova, Kari Estes
Dairy Science and Food Science Faculty Publications: 2022 to Present
Recent studies have suggested that dietary rumen-protected choline (RPC) supplementation can modulate immune function, attenuate inflammation, and improve performance in periparturient dairy cattle; however, this has yet to be evaluated during a mastitis challenge. Therefore, the objective of this study was to examine the effects of supplementation and dose of RPC on metabolism, inflammation, and performance during an intramammary lipopolysaccharide (LPS) challenge. Parous Holstein cows (parity, mean ± SD, 1.9 ± 1.1 at enrollment) were blocked by calving month and randomly assigned within block to receive either 45 g/d of RPC (20.4 g/d of choline ions; CHOL45, n = 18), …