Leukocyte Infiltration Profiles At The Site Of Intradermal Injection Of Silikon-1000 In Scleroderma-Prone Ucd200/206 And Healthy White Leghorn Chickens,
2025
University of Arkansas, Fayetteville
Leukocyte Infiltration Profiles At The Site Of Intradermal Injection Of Silikon-1000 In Scleroderma-Prone Ucd200/206 And Healthy White Leghorn Chickens, Katee L. Johnson, Jossie M. Santamaria, Chrysta N. Beck, Gisela F. Erf
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Intradermal injections of silicone-based fillers for the face and body may cause chronic inflammation and fibrotic reactions in some individuals. Chickens from the UCD 200/206 White Leghorn (WL) line spontaneously develop a fibrotic autoimmune disease known as scleroderma/systemic sclerosis (SSc). Using the SSc-prone UCD and healthy WL chickens, a longitudinal study was conducted to examine the cellular inflammatory responses to intradermal (i.d.) injections of sterile SILIKON-1000. Specifically, the pulp (a skin derivative) of growing feathers (GFs) was i.d. injected with sterile SILIKON-1000 or phosphate-buffered saline (PBS) as injection control (8 and 3 birds/line, respectively; 10 µL/GF; 20 GFs/bird). Two GFs …
Letter From The Dean,
2025
University of Arkansas, Fayetteville
Letter From The Dean, Jeff Edwards
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Fisheries Research Report No. 345: Metropolitan Monitoring Program 2024,
2025
Department of Primary Industries and Regional Development, Western Australia
Fisheries Research Report No. 345: Metropolitan Monitoring Program 2024, Alissa C. Tate, Claire B. Smallwood, Karina L. Ryan
Fisheries Research Reports
Ongoing monitoring of recreational fisheries in the Metropolitan zone is essential to ensure the sustainable use of fisheries resources. Surveys of shore- and boat-based recreational fishers within the Metropolitan zone of the West Coast bioregion provide information on human dimensions and catch-per-fisher as well as mean length and weight of key recreationally caught species. For shore-based fishers, estimates of fishing effort, catch and harvest are also presented for key nearshore species. Information in this report is used to support ongoing assessments for key nearshore species and inform the development and evaluation of harvest strategies and other management actions, such as …
Crisis In The Current: A Proposed Study On The Impact Of Columbia River Basin Water Quality On Juvenile Chinook Salmon Survival,
2025
Claremont Colleges
Crisis In The Current: A Proposed Study On The Impact Of Columbia River Basin Water Quality On Juvenile Chinook Salmon Survival, Olivia Buist-Thuillier
Pitzer Senior Theses
Salmon occupy a vital role in the ecosystem, economy, and indigenous culture of the Pacific Northwest of the United States, specifically within the Columbia River Basin. Of the five species of Pacific Salmon that live in the basin, Chinook salmon (Oncorhynchus tshawytscha) are the most widely commercially fished and are the largest. In recent years, Chinook Salmon populations have heavily declined from human influence. Rising temperatures from anthropogenic climate change, habitat destruction (dams, human presence), runoff from agricultural practices, and overfishing have all contributed to this decline. Because of their role as a keystone species and their cultural significance, there …
Programming Carcass Composition Through Gestational Nutrition,
2025
South Dakota State University
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 …
Featured Faculty Mentor/Student Team,
2025
University of Arkansas, Fayetteville
Featured Faculty Mentor/Student Team, Kelly Loftin, Eva Berryhill
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Assessing The Prevalence Of Ehrlichia Spp. In Ticks Associated With Canids In Arkansas,
2025
University of Arkansas, Fayetteville
Assessing The Prevalence Of Ehrlichia Spp. In Ticks Associated With Canids In Arkansas, Eva Berryhill, Kelly Loftin
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Canine ehrlichiosis is a common disease seen in dogs. The southeastern United States has been identified as an area of high prevalence, including Arkansas. Changes in climate, household income, and tick population are factors contributing to high prevalence. Canine ehrlichiosis is caused by three Ehrlichia spp., which are E. canis, E. ewingii, and E. chaffeensis. Ticks transmit the pathogen, specifically Rhipicephalus sanguineus, Dermacentor variabilis, and Amblyomma americanum. For this study, the goal was to determine the prevalence of Ehrlichia spp. in Arkansas that causes canine ehrlichiosis. Ticks were collected from host canines and environmental …
Instructions For Authors,
2025
University of Arkansas, Fayetteville
Instructions For Authors, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Gene Expression In Relation To Bone Fractures In Throughbred Racehorses,
2025
Gluck Equine Research Center
Gene Expression In Relation To Bone Fractures In Throughbred Racehorses, Anna M. Rauber-Ramos
Theses and Dissertations--Veterinary Science
Evidence that fractures in Thoroughbred racehorses are outcomes of chronic bone microdamage has led to extensive research into identifying horses at increased risk of fracture. This includes the use of biomarkers and messenger RNA (mRNA) as a measure of bone turnover. Previous research has found expression differences in horses with fractures compared to controls. Utilizing pre-race whole blood samples collected over an 18-month period from Thoroughbred racehorses in Southern California, RNA-sequencing was conducted on horses with bone fractures and race-matched controls to identify differences in gene expression. Focusing on third metacarpal (MC3) and proximal sesamoid bone (PSB) fractures, differentially expressed …
Avian Response To Legacy Coal Mine Reforestation In The Cumberland Plateau, Kentucky,
2025
University of Kentucky
Avian Response To Legacy Coal Mine Reforestation In The Cumberland Plateau, Kentucky, Madoline J. Varias
Theses and Dissertations--Forestry and Natural Resources
Surface coal mining and reclamation processes alter the ecological characteristics of landscapes, which affects the presence and distribution of native wildlife. The Forestry Reclamation Approach (FRA) is a coal mine reclamation method that aims to establish native forests on surface mines and has been widely implemented across the Central Appalachian region. Avian response the FRA, in particular, is unknown in Kentucky and limited throughout Appalachia. Thus, the goal of this project was to assess the effects of the FRA on avian community occupancy, species richness, and abundance in the Cumberland Plateau of Kentucky. Point count surveys were conducted across three …
‘Who’S Your Daddy?’: Ddradseq Parentage In Broodstock-Offspring Pairs Of Diadema Antillarum In A Population Restoration Initiative,
2025
University of Central Florida
‘Who’S Your Daddy?’: Ddradseq Parentage In Broodstock-Offspring Pairs Of Diadema Antillarum In A Population Restoration Initiative, Bianca R. Rosendahl
Undergraduate Scholarship and Creative Works
In the early 1980s Diadema antillarum, or the long-spined urchin, was hit by a catastrophic mass mortality event across the western Atlantic and Gulf of Mexico, inclusive of the Florida Keys. The cause of this die-off event was likely triggered by a pathogen or environmental stressor that decimated native populations by up to 98%. The species has not yet fully recovered and is struggling with recruitment success which is why it may benefit from an ex-situ recovery program. In this study, I used single nucleotide polymorphisms (SNPs) to identify genetic variation and analyze parentage in a captive population of …
Exploring Mating Patterns: The Interplay Of Genes, Environment, And Their Evolutionary Outcomes,
2025
Wilfrid Laurier University
Exploring Mating Patterns: The Interplay Of Genes, Environment, And Their Evolutionary Outcomes, Sanduni Talagala
Theses and Dissertations (Comprehensive)
There is great variation in the reproductive tactics exhibited both between and within different species, which is reflected in how individuals engage in mate assessment, mate choice and offspring production. It is therefore important to understand general mating patterns of populations, the factors that influence these mating patterns, and the consequences they carry, in order to get a more holistic understanding of mating systems. This doctoral research represents a multi-pronged investigation of the factors shaping mating patterns and their consequences, how environmental factors influence mating patterns, and how both genotypes and the environment interact to influence mate choice decisions and …
Marine And Freshwater Habitats Used By Sympatric Anadromous Arctic Char (Salvelinus Alpinus) And Dolly Varden (S. Malma Malma) In The Central Canadian Arctic,
2025
Wilfrid Laurier University
Marine And Freshwater Habitats Used By Sympatric Anadromous Arctic Char (Salvelinus Alpinus) And Dolly Varden (S. Malma Malma) In The Central Canadian Arctic, Simon W. Depasquale Mr.
Theses and Dissertations (Comprehensive)
Two closely related but distinct species of char, Arctic Char (Salvelinus alpinus) and Dolly Varden (S. malma), are critically important to the food security and culture of Indigenous peoples in northern North America. Subsistence Inuit fishers in Kugluktuk, NU, Canada, have noticed changes in the timing and locations of their catches of char in the past ~ 10 years. In response, an ongoing partnered research program between the Kugluktuk Hunters and Trappers Organization (HTO) and scientists was formed to study Arctic Char and northern form Dolly Varden (S. malma malma). Char research near Kugluktuk presents a unique opportunity to further …
Evaluation Of High-Moisture Ear Corn As A Roughage Source In Finishing Diets Fed To Beef Steers,
2025
South Dakota State University
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 …
Impact Of Natural Feed Additives And Monensin Sodium On Growth Performance In Feedlot Cattle,
2025
South Dakota State University
Impact Of Natural Feed Additives And Monensin Sodium On Growth Performance In Feedlot Cattle, Thiago Lauro Maia Ribeiro
Electronic Theses and Dissertations
The objective of this dissertation was to investigate how phytogenic feed additives and a pulse feeding monensin sodium strategy would affect growth performance in the receiving and finishing feedlot phases. Three randomized complete block design feedlot experiments and one pooled analysis were conducted to determine the effects of the feed additives and management strategies used in newly weaned and finishing beef cattle. The objective of these experiments were 1) determine if a blend of capsicum oleoresin, clove essential oil, and garlic essential oil (CCG) influences cattle performance, sera metabolites or health outcomes during the feedlot receiving phase; 2) determine if …
Finishing Location And Forage Diversity Influences Carcass Characteristics, Meat Quality Attributes, Terroir, And Color Stability Of Grass-Finished Bison Bulls,
2025
South Dakota State University
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 …
Impacts Of Early/Mid-Gestation Shearing On Umbilical Blood Flow And Lamb Birth Weight,
2025
South Dakota State University
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 …
Soybean Meal And Soybean Hulls Inclusion In Swine Diets And The Effects On Performance, Carcass Characteristics, Nutrient Digestibility, Manure Nutrient Output, And Economic Impact,
2025
South Dakota State University
Soybean Meal And Soybean Hulls Inclusion In Swine Diets And The Effects On Performance, Carcass Characteristics, Nutrient Digestibility, Manure Nutrient Output, And Economic Impact, Joseph G. Halbur
Electronic Theses and Dissertations
The increasing demand for soybean production in the Midwest, driven by new soybean crushing plants, may reduce the cost of soybean meal (SBM), making it a more accessible and economically viable feed ingredient in swine diets. Replacing dried distillers grains with solubles (DDGS) with SBM and soy hulls at different inclusion rates may influence growth performance, carcass traits, nutrient digestibility, manure nutrient output, pelleting energy use, and economic returns in wean-to-finish pigs. Two experiments were conducted to evaluate these effects. In the first, 566 pigs (PIC × Terminal Duroc, 8.45 and 7.25 kg, 6 weeks of age) were housed in …
Behavioral Response Of House Flies (Diptera: Muscidae) To 3 Bittering Agents,
2025
Northern Illinois University
Behavioral Response Of House Flies (Diptera: Muscidae) To 3 Bittering Agents, Panchalie B. Gunathunga, Bethia H. King, Christopher J. Geden
Faculty Articles, Papers, and Other Scholarship
House flies, Musca domestica L., are pests at livestock facilities. House fly numbers are controlled mainly by manure management and chemical controls, like use of toxic baits. Some toxic baits contain denatonium benzoate as a bittering agent, to avoid poisoning of children. House fly behavioral response to denatonium benzoate was examined, using 2 different diluents, sucrose solution or orange juice. Response of flies to quinine and sucrose octaacetate, 2 other bittering agents, was also examined in sucrose. Sucrose is the sweetener in commercially available toxic house fly baits. The proboscis extension response of both male and female flies was significantly …
Mercury Concentrations, Health, And Marine Food Consumption Across Four Eastern Caribbean Populations: Insights From A Novel Community-Based Study,
2025
Coastal Carolina University
Mercury Concentrations, Health, And Marine Food Consumption Across Four Eastern Caribbean Populations: Insights From A Novel Community-Based Study, Russell Fielding, Catherine Brown, Jessica Dutton, Martin S. Forde, Heather Harewood, Lisa Hunt, Catherine Macdonald, Cameron Mewhirter, Vincent Reid, Madison Smith, Holly Taylor, Katelyn Zimmerman
Gulf and Caribbean Research
Mercury (Hg), as an environmental pollutant, can have harmful effects on human health. A common way that people are exposed to Hg is through seafood consumption. This project was designed to investigate Hg exposure through seafood consumption and its health effects among adults in 4 Caribbean countries: Barbados (n = 117), Grenada (n = 90), St. Lucia (n = 126), and St. Vincent & the Grenadines (n = 77). We applied a novel, community—based method, which involved recruiting and paying local barbers and hairstylists to collect hair samples from their clients who consented to join the project as participants. Participants …
