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Articles 1861 - 1890 of 36147
Full-Text Articles in Animal Sciences
Changes In Animal Vocalizations In Response To A Total Solar Eclipse, Colton W. Morris
Changes In Animal Vocalizations In Response To A Total Solar Eclipse, Colton W. Morris
ATU Scholars Symposium
My proposed research project will study the changes in animal vocalizations in response to the total solar eclipse that will take place in Russellville, Arkansas, on April 8, 2024. I will use audio recordings before, during, and after the eclipse to quantify changes in animal vocalizations. Most recordings will be in the range of normal hearing, and will primarily detect birds, frogs, and insects. Additionally, I will deploy one ultrasonic recorder capable of detecting bats. From these recordings I will be able to quantify overall and species-specific call rates. Audio recordings will be paired with continuous measurements of light intensity …
Cocoa Polyphenols Modulate The Fecal Microbiome In A Mouse Model Of Colitis, Independent Of Basal Diet And Colon Inflammation, Abby D. Benninghoff
Cocoa Polyphenols Modulate The Fecal Microbiome In A Mouse Model Of Colitis, Independent Of Basal Diet And Colon Inflammation, Abby D. Benninghoff
Browse all Datasets
Chronic inflammation increases the risk of developing multiple chronic diseases, including cancer. The risk of developing colorectal cancer (CRC) specifically is increased in individuals who suffer from colitis, a characteristic of Inflammatory Bowel Disease (IBD). Diet is another risk factor for developing CRC, particularly an inflammation-promoting Western-type diet. Thus, supplementing a Western diet with functional foods containing anti-inflammatory polyphenols is a potential approach to decreasing CRC risk by reducing gut inflammation and altering gut microbiome profile. This study aimed to determine the effects of cocoa polyphenol (CP) supplementation on inflammation status and microbiome profile before, during, and after colitis when …
Sharpnose (Rhizoprionodon Terraenovae) Jaw, Juliana N. Ottens-Rivera, Fiona Smith, David Kerstetter
Sharpnose (Rhizoprionodon Terraenovae) Jaw, Juliana N. Ottens-Rivera, Fiona Smith, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Jaw from 76cm total length (TL) Rhizoprionodon genus (Sharpnose), collected from Anglers Bait & Tackle on Feb 5th, 2024, by Juliana Ottens-Rivera
Detection And Characterization Of Copy Number Variation In Three Differentially-Selected Nellore Cattle Populations, Lorena F. Benfica, Luiz F. Brito, Ricardo D. Do Bem, Leticia F. De Oliveira, Henrique A. Mulim, Larissa G. Braga, Joslaine N.S.G. Cyrillo, Sarah F.M. Bonilha, Maria Eugenia Z. Mercadante
Detection And Characterization Of Copy Number Variation In Three Differentially-Selected Nellore Cattle Populations, Lorena F. Benfica, Luiz F. Brito, Ricardo D. Do Bem, Leticia F. De Oliveira, Henrique A. Mulim, Larissa G. Braga, Joslaine N.S.G. Cyrillo, Sarah F.M. Bonilha, Maria Eugenia Z. Mercadante
Purdue University Libraries Open Access Publishing Fund
Introduction: Nellore cattle (Bos taurus indicus) is the main beef cattle breed raised in Brazil. This breed is well adapted to tropical conditions and, more recently, has experienced intensive genetic selection for multiple performance traits. Over the past 43 years, an experimental breeding program has been developed in the Institute of Animal Science (IZ, Sertaozinho, SP, Brazil), which resulted in three differentially-selected lines known as Nellore Control (NeC), Nellore Selection (NeS), and Nellore Traditional (NeT). The primary goal of this selection experiment was to determine the response to selection for yearling weight (YW) and residual feed intake (RFI) on Nellore …
Grazing On The Arizona Strip: Catchment History And Repair, Melanie Heaton
Grazing On The Arizona Strip: Catchment History And Repair, Melanie Heaton
All Current Publications
Water, not forage, is the limiting factor for wildlife and livestock grazing the Arizona Strip, a nearly 3-million-acre piece of land located north of the Grand Canyon and south of the Utah border. Since springs and groundwater are rare or absent, harvesting of natural precipitation is the main source of water for animals. Catchment systems, which capture precipitation on a sloped rubber apron and contain it in a large tank or lined pond, are used by government agencies and grazing permittees to efficiently provide water for wildlife and livestock. As catchments reach the end of their useful lives, tank replacement …
Habitat Suitability For Age-0 Lake Sturgeon In The Grand River, Benjamin D. Gunnett
Habitat Suitability For Age-0 Lake Sturgeon In The Grand River, Benjamin D. Gunnett
Masters Theses
Lake sturgeon (Acipenser fulvescens) are a state-threatened species in Michigan and have become a focus for conservation. The lower Grand River is home to a remnant population of lake sturgeon between the 6th Street dam in downtown Grand Rapids and Lake Michigan. There has been limited research on age-0 lake sturgeon habitat use in low-gradient and more turbid rivers. To address this deficit, we developed a Habitat Suitability Index (HSI) for age-0 lake sturgeon based on prior literature in the Great Lakes. A HSI combines parameters representing in-stream habitat characteristics to score habitat suitability on a scale of 0-1, 0 …
Cocoa Polyphenols Modulate The Gut Microbiome In A Site-Specific Manner In Mice, Marcus Hayden
Cocoa Polyphenols Modulate The Gut Microbiome In A Site-Specific Manner In Mice, Marcus Hayden
Student Research Symposium
Gut Health and the Microbiome
- Colorectal cancer (CRC) is one of the most prevalent cancers in the United States; early-onset CRC is also on the rise [1].
- Colitis-associated CRC is defined as CRC that arises from inflammation of the colon.
- A Western-type diet has been shown to exacerbate colitis.
- Metabolites of the gut microbiome contain anti-cancer and anti-inflammatory properties [2].
- Diet is a key factor in the gut microbiome composition.
- Polyphenols in cocoa may restore the gut microbiome composition from pre-existing dysbiosis.
- More research is needed to study how dietary cocoa supplementation modulates the microbiome across several sites of the …
The Effects Of Including Sprouted Barley In The Diets Of Feeder Lambs, Zachary Crump
The Effects Of Including Sprouted Barley In The Diets Of Feeder Lambs, Zachary Crump
Student Research Symposium
Introduction
- Why do we care about sustainable agriculture?
- Increased population, and decreased available resources make production difficult to keep up with demand (Alexandratos and Bruinsma 2012).
- Lamb demand has increased 38% from 2012-2022 in the United States (Agriculture 2024)
- New technology can increase crop intensification to help production meet demand.
Effect Of Medium On Epigenetics In Fertilized And Cloned Embryos, Ethan Loertscher
Effect Of Medium On Epigenetics In Fertilized And Cloned Embryos, Ethan Loertscher
Student Research Symposium
- The metabolic pathways that oocytes and embryos take during early development have an important effect on epigenetic events. This leads to the question of whether different cultures affect epigenetics.
- There are some concerns that serum-containing mediums may be correlated with poor health outcomes.
- Acetylation of lysine 9 on histone 3 is associated with chromatin configurations. The intensity of H3K9ac is much lower in cloned embryos (somatic cell nuclear transfer (SCNT)) than what is seen in normal embryos
- This study was aiming to compare IVF and SCNT embryos cultured in a medium containing serum and a medium …
Effects On Cytokine Supplementation On Bovine Embryo Development, Pratt Griffeth
Effects On Cytokine Supplementation On Bovine Embryo Development, Pratt Griffeth
Student Research Symposium
- Artificial reproductive techniques (ARTs), such as in-vitro fertilization (IVF), allow for embryo production beyond what is naturally possible.
- To conduct IVF oocytes must reach maturity via in-vitro maturation (IVM), be fertilized by IVF, and the resulting embryos cultured via in-vitro culture (IVC).
- Modifications in maturation media and culture media are often tested experimentally to increase effectiveness of ARTs.
- Researchers have found that supplementing a group of three cytokines (fibroblast growth factor 2 (FGF2), leukemia inhibiting factor (LIF), insulin-like growth factor 1 (IGF1), together known as FLI) in maturation media improved oocyte maturation in pigs and bovine cloning success.1-2
- Our …
Genomic Population Structure Of Great Hammerhead Sharks (Sphyrna Mokarran) Across The Indo-Pacific, Naomi L. Brunjes, Samuel M. Williams, Alexis L. Levengood, Matt K. Broadhurst, Vincent Raoult, Alastair V. Harry, Matias Braccini, Madeline E. Green, Julia L. Y. Spaet, Michael J. Travers, Bonnie J. Holmes
Genomic Population Structure Of Great Hammerhead Sharks (Sphyrna Mokarran) Across The Indo-Pacific, Naomi L. Brunjes, Samuel M. Williams, Alexis L. Levengood, Matt K. Broadhurst, Vincent Raoult, Alastair V. Harry, Matias Braccini, Madeline E. Green, Julia L. Y. Spaet, Michael J. Travers, Bonnie J. Holmes
Fisheries Research Articles
Context
Currently, little information exists describing the population structure of great hammerhead sharks (Sphyrna mokarran) in Australian waters. Aims
This study used single nucleotide polymorphisms to investigate fine-scale population structure in S. mokarran across the Indo-Pacific. Methods
DNA was extracted from 235 individuals across six Australian locations and a Red Sea outgroup. Population parameters were calculated and visualised to test structuring across locations. Key results
No fine-scale population structuring was observed for S. mokarran across the Indo-Pacific. However, population structuring occurred for all Australian locations when compared to the Red Sea outgroup. Conclusions
Findings suggest a single stock …
Pet Diet Changes While Taking An Animal Nutrition Course, Joanna Ramirez
Pet Diet Changes While Taking An Animal Nutrition Course, Joanna Ramirez
Undergraduate Research Conference
This study investigates the impact of an animal nutrition course on pet owners during the Fall of 2023. The primary objective is to determine how a pet owner's perception of their pet's diet changes and to identify any corresponding alterations made to the pet's diet before and while taking an animal nutrition course. Two surveys were conducted to collect responses: the pre-survey received 18 responses from animal nutrition students regarding their pets' diets before taking the course, and the post-survey received 18 responses from animal nutrition students regarding any changes in their pets' diets while taking the course.
Anything But Another Essay: Understanding Undergraduate Stem Student Perceptions Of Creative, Project-Based Learning, Emily M. Redding, Lorelei E. Patrick
Anything But Another Essay: Understanding Undergraduate Stem Student Perceptions Of Creative, Project-Based Learning, Emily M. Redding, Lorelei E. Patrick
SACAD: Scholarly Activities
The training of innovative and diverse scientists starts with creative teaching practices. Much of the pedagogy literature on incorporating nontraditional teaching practices in college STEM courses focuses on the use of in-class active learning activities. Less study has been devoted to creative, project-based assignments, such as “UnEssays”. The “UnEssay” is a semester-long assignment that challenges students to complete a library research project on a topic of their choosing and present it using anything but an essay. Although gaining popularity, few studies have assessed STEM student's perceptions of the assignments. To do so, Zoology students were asked to complete pre- and …
First-Time Market Lamb, Ashley Longmore, Cheyenne Reid
First-Time Market Lamb, Ashley Longmore, Cheyenne Reid
All Current Publications
This fact sheet is 4-H youth who are thinking about or have recently purchased their first 4-H lamb. This fact sheet is a simple outline providing more information on selection, feeding, housing, basic care, and grooming.
First-Time Market Goat, Ashley Longmore, Cheyenne Reid
First-Time Market Goat, Ashley Longmore, Cheyenne Reid
All Current Publications
This fact sheet is 4-H youth who are thinking about or have recently purchased their first 4-H goat. This fact sheet is a simple outline that provides information on selection, feeding, housing, basic care, and grooming.
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxx. Parabuthus (Buthidae) (Part Iii), With Description Of Three New Species From Somaliland And Occurrence Of Parabuthus Eritreaensis Kovařík, 2003, František Kovařík, Graeme Lowe, Hassan Sh A. Elmi, František Šťáhlavský
Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxx. Parabuthus (Buthidae) (Part Iii), With Description Of Three New Species From Somaliland And Occurrence Of Parabuthus Eritreaensis Kovařík, 2003, František Kovařík, Graeme Lowe, Hassan Sh A. Elmi, František Šťáhlavský
Euscorpius
A new record of an adult female of Parabuthus eritreaensis Kovařík, 2003 in Somaliland confirms true distribution of this species, already discussed in Kovařík et al. (2016: 19–21). Three new species are described from Somaliland, P. dorisae sp. n., P. evae sp. n., and P. quincyae sp. n.. The hemispermatophore of P. dorisae sp. n. is illustrated and described. In addition to the analyses of external morphology and hemispermatophore, we have provided descriptions of the karyotypes of P. dorisae sp. n. and P. quincyae sp. n. Despite the presence of multivalents (CVIII and CXIV), both species exhibit karyotypes with 2n=16 …
A Novel Goat Model To Characterize Male Fertility Following Paternal Cannabidiol Exposure, Ashlyn N. Brewer
A Novel Goat Model To Characterize Male Fertility Following Paternal Cannabidiol Exposure, Ashlyn N. Brewer
LSU Master's Theses
Despite the increasing use of cannabidiol, both for medical and social purposes, the effect of cannabidiol on male fertility is poorly understood. Previous studies have been carried out in rodent models, but a large animal model does not exist at this time. This experiment proposes chronic cannabidiol (CBD) exposure using a goat model to understand the impact CBD has on male reproductive performance. The purpose of this project is to determine if daily exposure to CBD in male goats would impact reproductive parameters such as sperm quality and testosterone levels.
Two studies were conducted to determine the effects of CBD …
The Use Of Duddingtonia Flagrans Aged In Mineral For Gastrointestinal Parasitic Nematode Control In Small Ruminants, Elisa M. Preston
The Use Of Duddingtonia Flagrans Aged In Mineral For Gastrointestinal Parasitic Nematode Control In Small Ruminants, Elisa M. Preston
LSU Master's Theses
Gastrointestinal nematodes (GIN) are a major constraint to small ruminant health and production throughout the world. Haemonchus contortus commonly known as the “barber pole worm” is a major concern for producers and veterinarians because of the severe anemia, and other clinical symptoms these worms cause. For decades, anthelmintics have been used to control the GIN burden small ruminants face. Katahdin (n=36) and Hampshire sheep (n=12) were used in a randomized block design experiment over a 30-day period. The objective of this study was to evaluate the effectiveness of Duddingtonia flagrans spores, the active ingredient in a commercial product, Bioworma® (International …
The Social And Economic Dimensions Of One Of The World’S Longest-Operating Shark Fisheries, Matias Braccini, Maddison Watt, Clinton Syers, Nick Blay, Matthew Navarro, Michael Burton
The Social And Economic Dimensions Of One Of The World’S Longest-Operating Shark Fisheries, Matias Braccini, Maddison Watt, Clinton Syers, Nick Blay, Matthew Navarro, Michael Burton
Fisheries Research Articles
Context
Social and economic information is limited for coastal commercial and recreational fisheries, particularly shark fisheries, which are perceived as unsustainable and as targeting sharks for fins.
Aims
To characterise the social and economic dimensions of one of the world’s few long-standing sustainable shark fisheries.
Methods
We reviewed historic data and surveyed stakeholders to understand the economic and social dimensions of the shark fishery currently operating in Western Australia.
Key results
Since the fishery’s historic peak, there has been a substantial reduction in the number of operating vessels and ports due to management intervention. For the vessels that have remained, …
First-Time Market Steer, Ashley T. Longmore, Cheyenne A. Reid
First-Time Market Steer, Ashley T. Longmore, Cheyenne A. Reid
All Current Publications
The target audience for this fact sheet is 4-H youth who are thinking about or have recently purchased their first 4-H steer. This fact sheet is a simple outline that will give them more information on selection, feeding, housing, basic care, and grooming.
First-Time Market Hog, Ashley T. Longmore, Cheyenne A. Reid
First-Time Market Hog, Ashley T. Longmore, Cheyenne A. Reid
All Current Publications
This fact sheet is for 4-H youth who are thinking about or have recently purchased their first 4-H hog. This fact sheet is a simple outline that will give them more information on selection, feeding, housing, basic care, and grooming.
Bull Production: Breeding Soundness Exam And Expected Progeny Differences, Ethan Gilliam
Bull Production: Breeding Soundness Exam And Expected Progeny Differences, Ethan Gilliam
All Current Publications
This fact sheet defines a breeding soundness exam (BSE) for a breeding bull and reviews the meaning of expected progeny differences (EPDs). Acronyms used and depended on by livestock producers are reviewed. Understanding the meaning of livestock acronyms is commonly overlooked. Highlights include how a producer makes financial decisions throughout the year in relation to their livestock.
Alterations In Serum Thiol-Disulfide Homeostasis And Ischemia-Modified Albumin Concentrations In Clinical Canine Parvoviral Enteritis, Yasi̇n Şenel, Osman Safa Terzi̇, Erdal Kara, Özcan Erel, Sali̇m Neşeli̇oğlu, Ebubeki̇r Ceylan
Alterations In Serum Thiol-Disulfide Homeostasis And Ischemia-Modified Albumin Concentrations In Clinical Canine Parvoviral Enteritis, Yasi̇n Şenel, Osman Safa Terzi̇, Erdal Kara, Özcan Erel, Sali̇m Neşeli̇oğlu, Ebubeki̇r Ceylan
Turkish Journal of Veterinary & Animal Sciences
Monitoring biomarkers related to inflammation and oxidative stress is critical in dogs because parvovirus causes both inflammatory and antioxidant alterations. The aim of this study was to investigate inflammatory and antioxidant changes caused by canine parvoviral enteritis to better understand the oxidative stress process related to this disease. Thus, the total thiol, native thiol, disulfide, and ischemia-modified albumin levels of Canine parvovirus infected symptomatic puppies and healthy puppies were examined. Using the results of complete blood counts, the blood serum thiol-disulfide homeostasis and ischemia modified albumin levels of the puppies with Canine parvoviral enteritis (n = 65) and the healthy …
Quantifying Costs And Benefits Of Alternative Overwintering Strategies In A Southeastern Population Of Timber Rattlesnakes (Crotalus Horridus), John Powers, Amber Stubbs, Alfred J. Mead, Dominic L. Desantis
Quantifying Costs And Benefits Of Alternative Overwintering Strategies In A Southeastern Population Of Timber Rattlesnakes (Crotalus Horridus), John Powers, Amber Stubbs, Alfred J. Mead, Dominic L. Desantis
Graduate Research Showcase
Temperate reptile populations are under strong selective pressure to minimize the costs of extreme winter temperatures. For high latitude and high elevation snake populations, this has often favored communal overwintering behavior, wherein large numbers of conspecifics aggregate at optimal sites given the limited availability of such features in the environment. Timber Rattlesnakes (Crotalus horridus) are distributed across a wide latitudinal gradient in North America, and therefore represent ideal models for exploring how variable winter selective regimes might favor different strategies. Here, we leverage a unique intermediate population of C. horridus from central Georgia, USA, that exhibits both communal …
Socioecological Assessment Of Birds In Ngezi-Vumawimbi Nature Forest Reserve, Eli Taub
Socioecological Assessment Of Birds In Ngezi-Vumawimbi Nature Forest Reserve, Eli Taub
Independent Study Project (ISP) Collection
Effective management of natural resources requires consideration of the environment through both a physical and a sociological lens. In this study, the birds in Ngezi-Vumawimbi Nature Forest Reserve were examined through both a biological mist-net survey and a socioecological series of interviews with people living in the surrounding villages. The mist-net survey compared the understory species in undisturbed and disturbed area of the forest, as well as analyzing birds caught for biologically meaningful information on subspecies and sexual dimorphism. While the mist-net survey was largely unsuccessful, highlighting the need for alternative bird capture methods in Ngezi, it found a decrease …
White-Fronted Capuchins (Cebus Albifrons Aequatorialis) In La Hesperia Cloud Forest Reserve: A Study Of Aggressive Behaviors In Response To Human Presence, Marin Lynch
Independent Study Project (ISP) Collection
The Ecuadorian white-fronted capuchin, Cebus albifrons aequatorialis, is a critically endangered primate species native to Ecuador and northern Peru. Their population consists of only a handful of surviving troops spread out across this region. One surviving population exists in La Hesperia Cloud Forest Reserve in Ecuador. This reserve serves as an education and volunteer site for dozens of international travelers every year. I studied the effect of the presence of humans and the lodging they have constructed. Specifically, I investigated the effect on behavior of the proximity of the troops alpha male to manmade structures in the reserve. I …
The Interaction Of Sodium Fluoride And Sodium Selenate On The Developmental Toxicity To Xenopus Laevis And Ambystoma Maculatum Embryos, Shelby Wolfram
The Interaction Of Sodium Fluoride And Sodium Selenate On The Developmental Toxicity To Xenopus Laevis And Ambystoma Maculatum Embryos, Shelby Wolfram
Theses
Amphibians play critical roles in the environment's wellness. Fluoride (F) is a widely existing environmental pollutant. It is commonly known for being added to drinking water and as a topical dose on teeth. Selenium (Se) can be found in organic and inorganic forms in nature. Many different fertilizers, pesticides, insecticides, and fungicides contain sodium selenate in them. The range selenium has between deficiency and toxicity is narrow, meaning excess exposure could cause various adverse effects in aquatic organisms. Xenopus laevis is a standard model for developmental toxicity due to being minimal maintenance, cost efficient, and having transparent embryos. Xenopus makes …
Gsl Researcher (Spring 2024)
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2024 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
2024 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
Little International "Little I" Agricultural Exposition Catalogs
This is the catalog for the 101st Little International 'Little I' Agricultural Exposition, held on April 5th & 6th, 2024.
Assessing The Impact Of Climate Change On Harbor Seals: Haul-Out Patterns In Iceland Using Cmip6 Projections, Colin Lau
Independent Study Project (ISP) Collection
Harbor seals (Phoca vitulina) are known to exhibit a preference for specific environmental and weather conditions when hauling out, particularly during the pupping and molting cycles during summer. Climate change is projected to have a significant impact on the haul-out patterns and site conditions of harbor seals in Iceland, which could further diminish their dwindling population. A comprehensive literature review was conducted to identify and discuss the environmental variables that can affect haul-out probability. Among them, surface wind speed and air temperature are reported to have the biggest influence on harbor seal haul-out numbers between May and August. Climate projections …