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Full-Text Articles in Life Sciences

A Practical Guide To Uav-Based Weed Identification In Soybean: Comparing Rgb And Multispectral Sensor Performance, Kelvin Betitame, Cannayen Igathinathane, Kirk Howatt, Joseph Mettler, Cengiz Koparan, Xin Sun Apr 2025

A Practical Guide To Uav-Based Weed Identification In Soybean: Comparing Rgb And Multispectral Sensor Performance, Kelvin Betitame, Cannayen Igathinathane, Kirk Howatt, Joseph Mettler, Cengiz Koparan, Xin Sun

Agricultural Education, Communications and Technology Faculty Publications and Presentations

Precision agriculture relies heavily on accurate, efficient, and economical methods to distinguish between crops and weeds of various types. The advancement of unmanned aerial vehicle (UAV) technologies provides practical approaches for generating land-cover maps that are essential for monitoring and managing crop fields affected by various weeds. Although the overall cost of scouting crop fields with UAVs may be low and practical, it varies depending on the sensors used; and the existing studies have mainly focused on weed detection methods but not compared the sensors' performance. Therefore, to address this knowledge gap, this research aims to compare a UAV-mounted visual …


Three Reference Genomes For Freshwater Diatom Ecology And Evolution, Wade R. Roberts, Andrew J. Alverson Apr 2025

Three Reference Genomes For Freshwater Diatom Ecology And Evolution, Wade R. Roberts, Andrew J. Alverson

Biological Sciences Faculty Publications and Presentations

Diatoms are an important component of marine and freshwater ecosystems. Although the majority of described diatom species live in freshwater systems, genome sequencing efforts have focused primarily on marine species. Genomic resources for freshwater species have the potential to improve our understanding of diatom ecology and evolution, particularly in the context of major environmental shifts. We used long- and short-read sequencing platforms to assemble reference genomes for three freshwater diatom species, all in the order Thalalassiosirales, which are abundant in the plankton of oceans, lakes, reservoirs, and rivers worldwide. We targeted three species that cover the breadth of phylogenetic diversity …


The Experiences Of Young Adults Attempting To Quit E-Cigarettes: A Mixed-Methods Analysis, Tyler Merreighn, Jennifer C. Veilleux, Eric Schisler, Mufazzela Tabassum, Page Daniel Dobbs Apr 2025

The Experiences Of Young Adults Attempting To Quit E-Cigarettes: A Mixed-Methods Analysis, Tyler Merreighn, Jennifer C. Veilleux, Eric Schisler, Mufazzela Tabassum, Page Daniel Dobbs

Health, Human Performance and Recreation Faculty Publications and Presentations

Introduction: Young adult users of e-cigarettes have expressed intention to quit using these products. The purpose of this study was to explore the experiences of young adult e-cigarette users with trying to quit e-cigarettes.
Methods: Using an explanatory sequential mixed-methods design, a convenience sample of young adults living in the US in 2021 who had used e-cigarettes in the past 30 days completed a cross-sectional survey (n=592), and then a subsample of participants (n=25) completed a follow-up Zoom interview. Relationships between e-cigarette dependence and quitting were examined along with differences between motives for use, abstinence experiences, and stress intolerance of …


Evaluating The Costs Of Alternative Malting Grains For Market Adaptation: A Case Study On Rice Malt Production In The U.S, Bernardo P. Guimaraes, Lawton L. Nalley, Scott Robert Lafontaine Apr 2025

Evaluating The Costs Of Alternative Malting Grains For Market Adaptation: A Case Study On Rice Malt Production In The U.S, Bernardo P. Guimaraes, Lawton L. Nalley, Scott Robert Lafontaine

Food Science Faculty Publications and Presentations

Climate change, import restrictions, and global conflicts are significantly impacting brewing raw material supply and costs. To shield the malting and brewing industries from these disruptions, alternative crops to barley must be explored. Rice presents a promising option, yielding twice as much per hectare as barley and showing greater climate resilience. Monte Carlo simulations estimated the economic and agronomic impact of using rice for malting. While rice malt is more expensive to produce, it remains an attractive gluten-free alternative. Beer brewed from 100% rice malt costs 33% more than barley-based beer but reduces acreage requirements by 50-67%. Using rice malt …


Micronutrient Applications To Enhance Olive Fruit Growth And Extra Virgin Olive Oil Chemical And Sensory Attributes, Tommaso Ganino, Martina Galaverni, Lucia Morrone, Scott Lafontaine, Rahul Sen, Annalisa Rodolfi, Ilaria Marchioni, Tina Lino, Deborah Beghe, Margherita Rodolfi Apr 2025

Micronutrient Applications To Enhance Olive Fruit Growth And Extra Virgin Olive Oil Chemical And Sensory Attributes, Tommaso Ganino, Martina Galaverni, Lucia Morrone, Scott Lafontaine, Rahul Sen, Annalisa Rodolfi, Ilaria Marchioni, Tina Lino, Deborah Beghe, Margherita Rodolfi

Food Science Faculty Publications and Presentations

This study investigated the effects of micronutrient treatments-Selenium and Betaine (SeBe), Boron (B), Betaine (Be), and their combinations-on the growth, physicochemical attributes, and sensory qualities of 'Nostrana di Brisighella' olives. Treatments significantly influenced fruit size, firmness, water content, oil content, and sensory characteristics. SeBe-treated plants yielded larger fruits with higher firmness and oil content, likely due to enhanced water retention and metabolic activity. Notably, B and Be treatments positively influenced sensory attributes, with B enhancing flavor complexity and Be contributing to improved fruit sweetness and aromatic profiles. The combination of B and Be resulted in a synergistic effect, yielding olives …


Vitamin A Fortification: Key Factors And Considerations For Effective Implementation, Joohun Han, Alvaro Durand-Morat, Khondoker Abdul Mottaleb Apr 2025

Vitamin A Fortification: Key Factors And Considerations For Effective Implementation, Joohun Han, Alvaro Durand-Morat, Khondoker Abdul Mottaleb

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Vitamin A fortification plays a crucial role in achieving long-term economic development in developing countries by supporting the growth and development of human capital. While fortification programs involve a range of nutritional, agricultural, economic, and political considerations, there is a lack of a comprehensive overview of the topic in the literature. Our review highlights the importance of holistic approach in designing fortification programs: the effective program should consider (a) the agronomic, economic, and administrative capability of the target regions in regard of fortification method and vehicle to maximize effectiveness; (b) strategies to ensure the producers' and consumers' adoption to enhance …


Evaluation Of The Effect Of In Ovo Applied Bifidobacteria And Lactic Acid Bacteria On Enteric Colonization By Hatchery-Associated Opportunistic Pathogens And Early Performance In Broiler Chickens, Mitchell C. Rowland, Aaron J. Forga, James Higuita, Makenly E. Coles, Billy M. Hargis, Christine N. Vuong, Danielle Graham Mar 2025

Evaluation Of The Effect Of In Ovo Applied Bifidobacteria And Lactic Acid Bacteria On Enteric Colonization By Hatchery-Associated Opportunistic Pathogens And Early Performance In Broiler Chickens, Mitchell C. Rowland, Aaron J. Forga, James Higuita, Makenly E. Coles, Billy M. Hargis, Christine N. Vuong, Danielle Graham

Poultry Science Faculty Publications and Presentations

Probiotics have been used to promote pioneer colonization by beneficial bacteria in poultry. The purpose of the present study (four trials) was to determine if an in ovo injection with Bifidobacterium saeculare (B2-2, B3-4) and/or lactic acid bacteria (LAB18, LAB46) at d18 of embryogenesis reduced Enterococcus and Gram-negative bacterial colonization in the gut at hatch. An environmental challenge model was used to simulate microbial contamination in large-scale hatch cabinets in a laboratory setting. In all trials, gut homogenates obtained from chicks at hatch were plated to enumerate relevant bacterial populations. Performance was evaluated in trials two and four. The top …


Use Of Biochar And Industrial Hemp For Remediation Of Heavy-Metal-Contaminated Soil: Root Uptake And Translocations For Cd, Pb, And Zn, Sophie Sward, Kristofor R. Brye, David M. Miller, Dietrich V. Thurston Mar 2025

Use Of Biochar And Industrial Hemp For Remediation Of Heavy-Metal-Contaminated Soil: Root Uptake And Translocations For Cd, Pb, And Zn, Sophie Sward, Kristofor R. Brye, David M. Miller, Dietrich V. Thurston

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Phytoremediation has been reported as a more energy-efficient, and therefore cost-effective, method of environmental restoration compared to traditional remediation methods for heavy-metal-contaminated soils. Biochar has been shown to have variable effects on remediation potential in heavy-metal-contaminated soils. The objective of this study was to evaluate the effects of soil contamination level (i.e., low, medium, and high), industrial hemp (Cannabis sativa L.) cultivar (i.e., ‘Carmagnola’ and ‘Jinma’), biochar rate (i.e., 0, 2, 5, and 10% by volume), and their interactions on root tissue Cd, Pb, and Zn concentrations and uptakes; whole-plant Cd, Pb, and Zn uptakes; and translocation factors after 90 …


The Mechanistic Target Of Rapamycin Mediates Clostridium Perfringens-Induced Chicken Necrotic Enteritis Attenuated By Secondary Bile Acid Deoxycholic Acid, Mohit Bansal, Tahrir Alenezi, Ying Fu, Janashrit Shrestha, Ayidh Almansour, Hong Wang, Anamika Gupta, Rohana Liyanage, Xiaolun Sun Mar 2025

The Mechanistic Target Of Rapamycin Mediates Clostridium Perfringens-Induced Chicken Necrotic Enteritis Attenuated By Secondary Bile Acid Deoxycholic Acid, Mohit Bansal, Tahrir Alenezi, Ying Fu, Janashrit Shrestha, Ayidh Almansour, Hong Wang, Anamika Gupta, Rohana Liyanage, Xiaolun Sun

Poultry Science Faculty Publications and Presentations

Clostridium perfringens is a prevalent gut bacterial pathogen in humans and animals. This study investigated the role of the mechanistic targets of rapamycin (mTOR) and deoxycholic acid (DCA) on C. perfringens intestinal infection. Chickens were sequentially infected with Eimeria maxima and received the mTOR inhibitor rapamycin and DCA. C. perfringens-induced necrotic enteritis (NE) was evaluated using body weight gain (BWG), histopathology, bile acids, pathogen colonization, cell infiltration and death, and gene expression. The significant difference of p < 0.05 was analyzed by one-way ANOVA and multiple comparisons. Notably, rapamycin strongly reduced the subclinical and clinical NE histopathologies. DCA and DCA combined with rapamycin alleviated clinical NE and BWG loss. Rapamycin, DCA, and DCA + rapamycin attenuated bile acid reduction in NE birds, and they also reduced immune cell infiltration into the intestinal lamina propria as well as immune cell migration in vitro. At molecular levels, DCA and DCA + rapamycin reduced proinflammatory IFN gamma, MMP9, IL23, and IL17 gene expression. Rapamycin, DCA, and DCA + rapamycin reduced NE-induced intestinal cell apoptosis. Together, these results suggest that mTOR signaling mediates C. perfringens-induced ileitis, and combining mTOR inhibition and DCA improves the intervention efficacy against NE ileitis and BWG loss.


Identifying Herbicides To Manage Weeds In A Buckwheat Cover Crop And For The Control Of Volunteers, Taylor Randell-Singleton, Hannah E. Wright-Smith, Lavesta C. Hand, Jenna C. Vance, A. Stanley Culpepper Mar 2025

Identifying Herbicides To Manage Weeds In A Buckwheat Cover Crop And For The Control Of Volunteers, Taylor Randell-Singleton, Hannah E. Wright-Smith, Lavesta C. Hand, Jenna C. Vance, A. Stanley Culpepper

Horticulture Faculty Publications and Presentations

Buckwheat (Fagopyrum esculentum) is a fast-growing plant that quickly produces a dense groundcover. The utilization of buckwheat as a cover crop in vegetable production could be beneficial to Georgia producers, however for successful adoption, weed control in the cover crop coupled with control of buckwheat volunteers must be achievable. A preemergence (PRE) and a postemergence (POST) experiment were each conducted three times in Ty Ty, GA (2020-2021) addressing these objectives. In the PRE study, acetochlor at 0.56 lb ai acre(-1) injured buckwheat up to 16% without negatively influencing growth, suggesting potential for use in buckwheat for weed control. Flumioxazin, fomesafen, …


Genome And Gwas Analyses For Soybean Cyst Nematode Resistance In Usda World-Wide Common Bean (Phaseolus Vulgaris) Germplasm, Ainong Shi, Haizheng Xiong, Thomas E. Michaels, Senyu Chen Mar 2025

Genome And Gwas Analyses For Soybean Cyst Nematode Resistance In Usda World-Wide Common Bean (Phaseolus Vulgaris) Germplasm, Ainong Shi, Haizheng Xiong, Thomas E. Michaels, Senyu Chen

Horticulture Faculty Publications and Presentations

Soybean cyst nematode (SCN), Heterodera glycines, has become a significant threat in common bean (Phaseolus vulgaris) production, particularly in regions like the upper Midwest USA. Host genetic resistance offers an effective and environmentally friendly approach to managing SCN. This study aimed to conduct a genome-wide association study (GWAS) and genomic prediction for resistance to SCN HG Types 7 (race 6), 2.5.7 (race 5), and 1.3.6.7 (race 14) using 0.7 million whole-genome resequencing-generated SNPs in 354 USDA worldwide common bean germplasm accessions. Among these, 26 lines exhibited resistance to all three HG types, with a female index (FI) of less than …


Racial Differences In Knowledge, Attitudes Toward Vaccination, And Risk Practices Around Lyme Disease In The United States, Madiha Shafquat, Niyati Patel, Brandon Mcfadden, James H. Stark, L. Hannah Gould Mar 2025

Racial Differences In Knowledge, Attitudes Toward Vaccination, And Risk Practices Around Lyme Disease In The United States, Madiha Shafquat, Niyati Patel, Brandon Mcfadden, James H. Stark, L. Hannah Gould

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Introduction Lyme disease (LD) incidence in the United States is highly regional, with most cases occurring in 16 high-incidence jurisdictions. LD incidence and severity of disease have been found to vary by race. This study describes racial differences in knowledge, attitudes toward vaccination, and risk practices related to LD.Methods Four web-based surveys were conducted with adults and caregivers of children in high-incidence jurisdictions and 10 states neighboring them. Respondents were recruited via an established online panel to represent the general population. Self-reported race was pooled into 3 categories: 'White', 'Black or African American', and 'Other' for analysis. Analyses were conducted …


Extracellular Dna In The Chicken Cecal Environment, Deborah Bukola Olubanjo, Artur Zbikowski, Bishnu Adhikari, Tieshan Jiang, Pallavi Singh, Seong Kang, Young Min Kwon Mar 2025

Extracellular Dna In The Chicken Cecal Environment, Deborah Bukola Olubanjo, Artur Zbikowski, Bishnu Adhikari, Tieshan Jiang, Pallavi Singh, Seong Kang, Young Min Kwon

Poultry Science Faculty Publications and Presentations

The presence and biological role of extracellular DNA (eDNA) have been explored in diverse microbial environments. Nonetheless, it has not been studied in the chicken gut microbiome. This study aims to investigate eDNA in the chicken cecum, analyzing cecal samples from broiler chickens using three preparation methods: Whole Cecal Suspension (WCS), Washed Cell Pellets (WCP), and Cell-Free Supernatant (CFS). The 16S rRNA gene-based microbiota analysis revealed distinct microbial communities in CFS compared to WCS and WCP (p = 0.001). Notably, specific taxa, including Anaerofilum, Anaerotruncus, Oscillospira, Syntrophomonas, and Delftia, were enriched in CFS. Confocal fluorescence microscopy, employing stains such as …


Transferability Of Soil Management Assessment Framework Indices To Detect Best Soil Management Strategies In Tropical Agroecosystems, Helen C.S. Amorium, Amanda Ashworth, Gerson L. Drescher, Mohkam Singh, Marcio R. Nunes Mar 2025

Transferability Of Soil Management Assessment Framework Indices To Detect Best Soil Management Strategies In Tropical Agroecosystems, Helen C.S. Amorium, Amanda Ashworth, Gerson L. Drescher, Mohkam Singh, Marcio R. Nunes

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Soil management assessment framework (SMAF) algorithms have not been validated for tropical soils, which can prevent proper SMAF-based soil health monitoring. This study tested SMAF's ability to detect soil health as affected by soil management practices in the Mid-South United States and Brazil for improving SMAF performance in tropical regions. Eleven SMAF studies published in Brazil (n = 166) and 56 from the Mid-South United States (n = 500) were compiled. Management groups were perennial (PER), no-till (NT), reduced tillage (RT), and conventional tillage (CT) systems. In the United States, SMAF soil quality index decreased as follows: PER >= RT …


A Tale Of Too Many Trees: A Conundrum For Phylogenetic Regression, Richard Adams, Jennifer Roa Lozano, Mataya Duncan, Jack Green, Raquel Assis, Michael Degiorgio Mar 2025

A Tale Of Too Many Trees: A Conundrum For Phylogenetic Regression, Richard Adams, Jennifer Roa Lozano, Mataya Duncan, Jack Green, Raquel Assis, Michael Degiorgio

Entomology and Plant Pathology Faculty Publications and Presentations

Just exactly which tree(s) should we assume when testing evolutionary hypotheses? This question has plagued comparative biologists for decades. Though all phylogenetic comparative methods require input trees, we seldom know with certainty whether even a perfectly estimated tree (if this is possible in practice) is appropriate for our studied traits. Yet, we also know that phylogenetic conflict is ubiquitous in modern comparative biology, and we are still learning about its dangers when testing evolutionary hypotheses. Here, we investigate the consequences of tree-trait mismatch for phylogenetic regression in the presence of gene tree-species tree conflict. Our simulation experiments reveal excessively high …


Understanding Dairy Livestock Farmers' Intention To Adopt Sociocultural Dynamics For Food Security Using The Theory Of Planned Behaviour, Paresh Kumar Sarma, Mohammad Jahanghir Alam, Samiha Sarwar, Sadika Haque, Golam Rabbani, Ismat Ara Begum, Andrew M. Mckenzie Mar 2025

Understanding Dairy Livestock Farmers' Intention To Adopt Sociocultural Dynamics For Food Security Using The Theory Of Planned Behaviour, Paresh Kumar Sarma, Mohammad Jahanghir Alam, Samiha Sarwar, Sadika Haque, Golam Rabbani, Ismat Ara Begum, Andrew M. Mckenzie

Agricultural Economics and Agribusiness Faculty Publications and Presentations

This study examines the impact of socio-cultural dynamics (SCD) on food and nutrition security in dairy farming households. Recognizing the role of cultural practices, social networks, and access to resources in shaping food security, we emphasize the need to incorporate these factors into interventions for dairy farming. Using a systematic random sampling technique, we surveyed 400 households in the Rajbari District of Bangladesh in 2024 and analyzed the data using the Theory of Planned Behavior (TPB) and the Partial Least Square-Structural Equation Model (PLS-SEM model). The results revealed a positive association between the intention to adopt socio-cultural dynamics and food …


Arkansas Soybean Performance Tests 2024, J. F. Carlin, R. D. Bond, T. C. Swanson, J. C. Mccoy Mar 2025

Arkansas Soybean Performance Tests 2024, J. F. Carlin, R. D. Bond, T. C. Swanson, J. C. Mccoy

Arkansas Agricultural Experiment Station Research Series

Soybean variety and strain performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture’s Arkansas Crop Variety Improvement Program. The tests provide information to companies developing varieties and/ or marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for soybean producers.


Wayne E. Sabbe Arkansas Soil Fertility Studies 2024, Nathan A. Slaton Mar 2025

Wayne E. Sabbe Arkansas Soil Fertility Studies 2024, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.


Arkansas Soybean Research Studies 2023, Jeremy Ross Mar 2025

Arkansas Soybean Research Studies 2023, Jeremy Ross

Arkansas Agricultural Experiment Station Research Series

The 2023 Arkansas Soybean Research Studies includes research reports on topics pertaining to soybean across several disciplines from breeding to post-harvest processing. Research reports contained in this publication may represent preliminary or only data from a single year or limited results; therefore, these results should not be used as a basis for long-term recommendations.

Several research reports in this publication will appear in other University of Arkansas System Division of Agriculture’s Arkansas Agricultural Experiment Station publications. This duplication is the result of the overlap in research coverage between disciplines and our effort to inform Arkansas soybean producers of the research …


A High-Lipid Diet Leads To Greater Pathology And Lower Tolerance During Infection, Weston Gerald Perrine, Erin Sauer, Ashley C. Love, Ashley Morris, Johnathan Novotny, Sarah Durant Mar 2025

A High-Lipid Diet Leads To Greater Pathology And Lower Tolerance During Infection, Weston Gerald Perrine, Erin Sauer, Ashley C. Love, Ashley Morris, Johnathan Novotny, Sarah Durant

Biological Sciences Faculty Publications and Presentations

Altered food landscapes contribute importantly to wildlife disease dynamics and may play a critical role in host heterogeneity in disease outcomes through changes in host diet composition. We explored the effects of dietary macronutrient composition on disease pathology and feeding behavior of canaries (Serinus canaria domestica) infected with Mycoplasma gallisepticum (MG). In the first experiment, we provided canaries with isocaloric diets composed of identical ingredients that varied in macronutrient content (high protein or high lipid) then MG- or sham-inoculated birds. In the second experiment, we offered both diets to canaries before and after MG or sham inoculation. In experiment one, …


Overexpression And Biophysical And Functional Characterization Of A Recombinant Fgf21, Phuc Phan, Jason Hoang, Thallapuranam Krishnaswamy Suresh Kumar Mar 2025

Overexpression And Biophysical And Functional Characterization Of A Recombinant Fgf21, Phuc Phan, Jason Hoang, Thallapuranam Krishnaswamy Suresh Kumar

Chemistry & Biochemistry Faculty Publications and Presentations

Fibroblast growth factor 21 (FGF21) is an endocrine FGF that plays a vital role in regulating essential metabolic pathways. FGF21 increases glucose uptake by cells, promotes fatty acid oxidation, reduces blood glucose levels, and alleviates metabolic diseases. However, detailed studies on its stability and biophysical characteristics have not been reported. Herein, we present the overexpression, biophysical characterization, and metabolic activity of a soluble recombinant FGF21 (rFGF21). The far-UV circular dichroism spectra of rFGF21 show a negative trough at 215 nm, indicating that the protein’s backbone predominantly adopts a β sheet conformation. rFGF21 shows intrinsic tyrosine fluorescence at 305 nm. Thermal …


Rice Cultivar Tolerance To Preemergence- And Postemergence-Applied Fluridone, Maria Carolina Souza, Jason K. Norsworthy, Pamela Carvalho-Moore, Amar J. Godar, Samuel B. Fernandes, Thomas R. Butts Feb 2025

Rice Cultivar Tolerance To Preemergence- And Postemergence-Applied Fluridone, Maria Carolina Souza, Jason K. Norsworthy, Pamela Carvalho-Moore, Amar J. Godar, Samuel B. Fernandes, Thomas R. Butts

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Fluridone was registered for use in rice production in 2023, offering a new herbicide site of action for growers. However, little information is available on the degree of rice tolerance to this herbicide. Field experiments conducted in 2022 and replicated in 2023 near Colt, AR, evaluated the tolerance of 12 rice cultivars to fluridone, applied preemergence or at the 3-leaf growth stage, in separate experiments. Each experiment consisted of one cultivar. Fluridone rates included 0, 168 (1 x label rate), and 336 (2 x label rate) g ai ha-1 in all experiments. Visible injury varied between years in all experiments, …


Mitochondrial Dysfunction Is A Hallmark Of Woody Breast Myopathy In Broiler Chickens, Elizabeth S. Greene, Paula R. Chen, Carrie Walk, Mike Bedford, Sami Dridi Feb 2025

Mitochondrial Dysfunction Is A Hallmark Of Woody Breast Myopathy In Broiler Chickens, Elizabeth S. Greene, Paula R. Chen, Carrie Walk, Mike Bedford, Sami Dridi

Poultry Science Faculty Publications and Presentations

The woody breast (WB) myopathy poses significant economic and welfare concerns to the poultry industry, however, there is no effective strategy to mitigate this pathology due to its unknown etiology. After showing previously that hypoxia is a key factor in WB progression, we used here various techniques demonstrating dysregulated mitochondria (morphology, biogenesis, tethering, function, and bioenergetics) in WB-affected muscles and in hypoxic myoblasts compared to healthy tissues and normoxic cells, respectively. The increased levels of calcium (Ca2+) in both WB-affected tissues and hypoxic myoblasts suggested that mitochondrial Ca2+ overload is likely a leading cause for mitochondrial dysfunction that merits further …


Profile Analysis Of Handwashing Behavior Among A Sample Of College Students In The Multi-Theory Model Framework, Miguel Antonio Fudolig, Robert E. Davis, Kavita Batra, Manoj Sharma Feb 2025

Profile Analysis Of Handwashing Behavior Among A Sample Of College Students In The Multi-Theory Model Framework, Miguel Antonio Fudolig, Robert E. Davis, Kavita Batra, Manoj Sharma

Health, Human Performance and Recreation Faculty Publications and Presentations

Maintaining proper hand hygiene is crucial in preventing the spread of infections and other communicable diseases. It is imperative to determine the factors that affect the likelihood of initiating and maintaining the recommended handwashing behavior, especially during a pandemic. This quantitative, secondary study employed a latent profile analysis (LPA) to identify the different attitudes toward behavior change based on the Multi-Theory Model (MTM) framework in the context of following the guidelines provided by the Centers for Disease Control and Prevention (CDC) during the COVID-19 pandemic. Data were collected from 602 college students at a large university in the southern region …


Unraveling The Influence Of Structural Complexity,Environmental, And Geographic Factors On Multi-Trophicbiodiversity In Forested Landscapes, Ayanna St Rose, Kusum Naithani Feb 2025

Unraveling The Influence Of Structural Complexity,Environmental, And Geographic Factors On Multi-Trophicbiodiversity In Forested Landscapes, Ayanna St Rose, Kusum Naithani

Biological Sciences Faculty Publications and Presentations

Multi-trophic diversity is often overlooked in land management decisions due to the absence of cost- and time-effective assessment methods. Here, we introduce a new method to calculate a combined terrain and canopy structural complexity metric using LiDAR data, enabling the prediction of multi-trophic diversity-a combined diversity metric that integrates diversity across trophic levels. We selected 34 forested sites of the National Ecological Observatory Network to test the model by using observed data on plant presence, beetle pitfall trap, and bird count to calculate multi-trophic diversity. Our results show that multi-trophic diversity increases with increasing structural complexity, but this relationship differs …


Structural, Molecular And Developmental Evidence For Cell-Type Diversity In Cnidarian Mechanosensory Neurons, Julia Baranyk, Kristen Malir, Miguel A.P. Silva, Sakura Rieck, Gracie Scheve, Nagayasu Nakanishi Feb 2025

Structural, Molecular And Developmental Evidence For Cell-Type Diversity In Cnidarian Mechanosensory Neurons, Julia Baranyk, Kristen Malir, Miguel A.P. Silva, Sakura Rieck, Gracie Scheve, Nagayasu Nakanishi

Biological Sciences Faculty Publications and Presentations

Deploying a conserved mechanosensory neuron known as the concentric hair cell, cnidarians have evolved diverse mechanoreceptors from hydroid filiform tentacles to jellyfish statocysts. However, it is unknown whether cnidarian mechanoreceptor evolution has relied solely on repurposing a single ancestral mechanosensory neuron type. Here we report evidence for cell-type diversity of mechanosensory neurons in sea-anemone cnidarian Nematostella vectensis. Uncovered in the ectoderm of feeding tentacles are conventional type I hair cells and previously unrecognized type II hair cells differing in the structure of apical sensory apparatus and synapses. Moreover, we identify TRP channel-encoding gene polycystin-1 as a type-II-hair-cell-specific essential mediator of …


Corn Tolerance To Florpyrauxifen-Benzyl Rates And Its Mixture With Atrazine And Mesotrione, Amar Godar, Jason K. Norsworthy, L. Tom Barber Feb 2025

Corn Tolerance To Florpyrauxifen-Benzyl Rates And Its Mixture With Atrazine And Mesotrione, Amar Godar, Jason K. Norsworthy, L. Tom Barber

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Florpyrauxifen-benzyl is a new synthetic auxin herbicide labeled in rice with a broad spectrum of control, typically more potent on broadleaf weeds. It has garnered some interest as a potential broadleaf weed control option for use in corn at low rates. Field experiments were conducted in Fayetteville, Arkansas, from 2019 through 2021 to examine the response of corn to postemergence applications of florpyrauxifen-benzyl at three rates (7.5, 15, and 30 g ae ha-1), as well as mixtures of the herbicide with atrazine (at half or full rate), mesotrione, or a combination of atrazine (at half rate) and mesotrione. Injury and …


Environmental Release Of A Safener Fenclorim From Rice (Oryza Sativa L.) Following Seed Treatment, Jeong-In R. Hwang, Jason K. Norsworthy, Nanda Kumar, Tae-Hwa Kim Feb 2025

Environmental Release Of A Safener Fenclorim From Rice (Oryza Sativa L.) Following Seed Treatment, Jeong-In R. Hwang, Jason K. Norsworthy, Nanda Kumar, Tae-Hwa Kim

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

The safener fenclorim, effective in protecting rice (Oryza sativa L.) from the phytotoxicity of some herbicides, is regarded as a contaminant of emerging concern that may cause toxicological issues to ecosystems and humans who may consume the final harvested rice. This study investigated time-dependent environmental releases of fenclorim from rice seeds treated with the safener and insecticide with five different treatments. The treatment with fenclorim alone caused the greatest fenclorim releases from the seed, and the release magnitude was similar to the treatment that had fenclorim and insecticide in mixture. The fenclorim release was the least when treated with safener …


Winter Hay-Feeding Effects On Soil Properties In A Rotationally Grazed Pasture System In The Ozark Highlands, Larry Berry, Kristofor R. Brye, Andrew Sharpley, Ron Morrow, Dirk Phillip, Tim A. Glover, James M. Burke, Mike B. Daniels Feb 2025

Winter Hay-Feeding Effects On Soil Properties In A Rotationally Grazed Pasture System In The Ozark Highlands, Larry Berry, Kristofor R. Brye, Andrew Sharpley, Ron Morrow, Dirk Phillip, Tim A. Glover, James M. Burke, Mike B. Daniels

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Soil nutrient management for pastures in Arkansas often ignores nutrients applied from feeding hay to cattle. Discounting nutrient contributions from hay may increase the likelihood of unnecessary fertilizer over-application. This study evaluated the effects of unrolling bales (unroll fed, UF) and using a ring feeder (ring fed, RF), compared to an unamended control, on changes in soil properties in the top 4 inches in a rotationally grazed, beef [red angus (Bos taurus)] pasture on silt-loam soils in northwest Arkansas. Forty-six cow-calf pairs were fed hay at 6.6 tons acre(-1) year(-1) (14.8 Mg ha(-1) year(-1); dry-weight basis) from December to February …


Determinants Of Market Participation Among Milk Producers In Kyrgyzstan, Akhmadjon Nurullaev, Eunchun Park, Bruce L. Ahrendsen, Stijn Speelman, Lawson Connor Feb 2025

Determinants Of Market Participation Among Milk Producers In Kyrgyzstan, Akhmadjon Nurullaev, Eunchun Park, Bruce L. Ahrendsen, Stijn Speelman, Lawson Connor

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Numerous studies have been conducted to comprehend the economic importance of market participation for producers. However, a significant gap remains, particularly in Central Asia. This study assesses market participation drivers for Kyrgyzstan's milk producers using the Life in Kyrgyzstan dataset, encompassing a comprehensive nationwide farm-level survey. Findings reveal that household assets boost market entry and sales volume, whereas distance from markets discourages participation but can increase sales for active sellers, reflecting transportation cost strategies. The insights inform policy interventions benefiting rural small-scale milk producers in Central Asian countries that share similar cultural backgrounds.