Life Sciences Commons^™

Net Energy: The Precision Path To Sustainability, P. Srichana, A. C. Tay-Zar, M. Wongphatcharachai, C. Chanseyha

Proceedings of the Arkansas Nutrition Conference

Adaptation of the net energy system in broiler diets will increase least cost formulation flexibility. These proceedings outline a net energy system developed and implemented in practice. In addition to lower carbon and nitrogen inputs in dietary formulation, the net energy system reduced feed costs.

Can Spatiotemporal Gait Parameters Predict State Anxiety?, Stephanie M. Cotariu, Ashlyn M. Jendro, Yale B. Hughes, Abigail C. Schmitt

2025 Honors Symposium

Background: Anxiety is one of the most experienced mental health disorders. Recent research has suggested a relationship between gait parameters and anxiety, however the disparity in measurement methodologies of both anxiety and gait makes it difficult to draw broad conclusions. Better understanding the relationship between anxiety and gait mechanics creates opportunity for a more holistic understanding of the interaction between mental health, functional capacity, and quality of life. Purpose: The purpose of this study is to evaluate if spatiotemporal gait parameters measured on a pressure-sensing walkway are related to anxiety.

Comparing Gait Patterns Of Individuals With And Without Cancer, Anna C. Gardner, Abigail C. Schmitt, Ashlyn M. Jendro, Nicholas P. Greene

2025 Honors Symposium

This study investigates the effects that cancer has on gait variables focusing on gait speed, step length, and stride width, and compares participants with cancer to participants without known disease.

Sports Injury Prevention - Epidemiological Analysis Of Concussion Mechanisms In Female Soccer Players: A Review Of Neiss Data (2020–2023), Caroline A. Bertalotto

2025 Honors Symposium

Background/Introduction: Concussions are a significant concern in women’s soccer, with many studies showing that women have a higher rate of having them than compared to men. The number of concussions in athletes have raised concerns about long-term health and calls for a deeper look into ways to prevent them from occurring. Purpose: The purpose of this study is to review the epidemiological data related to the mechanisms of concussions as a result of soccer, specifically within female participants.

Layer Industry Update: Nutrition Associated With Changes In Production Systems, Kenneth E. Anderson, Ishab Poudel

Proceedings of the Arkansas Nutrition Conference

This is not a hardcore research presentation but rather an overview of three North Carolina Layer Performance and Management Tests. I used the 39th, 40th, and 41st Layer Test Reports that cover the years 2013 through 2025. The proceedings cover white and brown egg strains as groups and the cage and cage-free production environments. Over all three of these tests the production environments were the same and met UEP Cage standards and the Humane Farm Animal Care cage-free standards. There are papers outlining the changes in more detail with all the statistics. This is an overview of visual trends in …

Field Experience And Production Challenges In Australia And New Zealand, Nick Rodgers

Proceedings of the Arkansas Nutrition Conference

Variability management represents the primary technical challenge facing the Australian and New Zealand (ANZ) broiler industry's vertically integrated operations. This analysis examines systematic approaches to controlling seasonal performance fluctuations, raw material quality variations, emerging disease pressures, and evolving welfare demands. Key variability sources include climatic extremes, season to season raw material quality and nutrient value variability and intermittent [mostly enteric] disease challenges, particularly in no antibiotics ever (NAE) production systems. Solutions require a scientific, data-driven approach with insights from field experience for causation identification and a collaborative approach within business functional units, and across industry collaborators such as suppliers and …

Genetic Diversity And Population Structure Of Tomato (Solanum Lycopersicum) From The Usda-Grin Germplasm Collection, Ibtisam Alatawi, Haizheng Xiong, Hanan Mohammedsaeed Alkabkabi, Kenani Chiwina, Qun Luo, Kai-Shu Ling, Yuejun Qu, Renjie Du, Ainong Shi

Horticulture Faculty Publications and Presentations

The genetic diversity and population structure of tomato (Solanum lycopersicum) were investigated to support breeding strategies and germplasm conservation. A total of 276 accessions from the USDA-GRIN collection were analyzed using single-nucleotide polymorphisms (SNPs) generated through genotyping by sequencing (GBS). After stringent filtering, 5162 high-quality polymorphic SNPs were retained for analysis. Population structure analysis revealed three distinct genetic groups (Q1, Q2, and Q3) among the accessions. Accessions from the USA, Asia, and Central and South America were assigned to all three groups, while accessions from Europe and Oceania were predominantly clustered within Q2. Genetic diversity indices, including major allele frequency, …

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Rice Plants Response To Modulation Of The Erecta Signaling, Yasmin Vasques Berchembrock, Flavia Barbos Silva Botelho, Bhuvan Pathak, Shan Zhao, Vibha Srivastava

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

The ERECTA family of receptors (ERfs), encoding leucine-rich repeat receptor-like kinases (LRR-RLKs), can regulate multiple aspects of plant development and abiotic stress responses. The rice (Oryza sativa) genome contains three ERfs, namely ERECTA 1 (OsER1), ERECTA 2 (OsER2), and ERECTA-LIKE (OsERL). However, there is limited information currently available on their expression pattern during the plant developmental stages. The expression pattern of OsERfs genes at reproductive stages from the booting (R2) to milk (R6) stage in Nipponbare cultivar and the transgenic plants expressing a truncated Arabidopsis ERECTA (ER) lacking the kinase domain (triangle Kinase) were studied. The triangle Kinase functions as …

Utilizing 16s Rna Sequencing To Identify Bacterial Species Colonizing Lame Birds With Bacterial Chondronecrosis With Osteomyelitis, Kara Hoover, Andi Asnayanti, Adnan Alrubaye

2025 Research Poster Competition

Poultry lameness has become prevalent in recent years due to high growth rates in broiler chickens. Bacterial chondronecrosis with osteomyelitis (BCO), the main cause of lameness, is characterized by necrosis of the femur and tibia in afflicted birds. Heavier birds are more susceptible to bacterial stress in these regions due to increased pressure on their growth plates. BCO lameness poses both ethical and financial threats to the poultry industry, as up to 15% of flocks can become affected during outbreaks. The purpose of this experiment was to identify bacterial species present in birds with BCO lameness. 1,800 chicks were randomly …

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 26 2025, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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.

Effectiveness Of Maternal Bovine Appeasing Substance Administered To Newly Received, High-Risk Stocker Calves, Elle Johnston, Rosie Whittle, Robin Cheek, Beth Kegley, Jeremy Powell, Shawna Weimer

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Stocker cattle purchased at auction can be susceptible to disease due to the stressors associated with the auction process and are referred to as “high-risk.” The objective of this study was to determine the efficacy of a maternal bovine appeasing substance, FerAppease^®, on the growth performance, health, and behavior of stocker cattle. Male beef calves (n = 80) were purchased at auction and transported to the University of Arkansas System Division of Agriculture Savoy Research Complex Beef Stocker Unit. On day 0, bulls were castrated, and steers and bulls were assigned to 8 pens (n = 10 calves/pen; …

Genotypic Variation And Wilting Speed Affect Soybean (Glycine Max) Germination And Growth, Adriana Peissel, Jessica Ayala, Rupesh Kariyat

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Soybean (Glycine max) is one of the most important agricultural crops in the world due to its value as a major source of protein and oilseed production. Soybean is extremely sensitive to drought and experiences severe reductions in yield when there is a reduction in water availability. Canopy wilting speed is a trait linked with water use efficiency (WUE) in soybeans. Slower wilting canopies indicate greater WUE, while faster wilting canopies indicate lower WUE. Previous studies have explored the variation of plant physiological traits across wilting speeds on a smaller scale, but ultimately, a more extensive assessment is …

Effect Of Traditional Versus Fenceline Weaning On Lamb Stress, Emma N. Sutton, Kenneth P. Coffey, Eva Wray, Derico Setyabrata, Bryan Kutz, Shawna Weimer

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Stress in sheep can negatively affect productivity and increase their susceptibility to illness and parasites. The traditional method of weaning lambs is the abrupt separation of lambs from their dams. An alternative method of weaning, fenceline weaning, where offspring are separated from their dams by a single fence but retain visual and auditory contact, has been found to reduce stress in cattle and may also reduce stress in sheep. The objectives of this study were to evaluate body weights, fecal egg counts, and behavior to determine if traditional or fenceline weaning has lower stress associated with weaning in lambs. The …

Effects Of Fiber Concentrations And Fermentation Rates On Reproductive Performance, Nutrient Digestibility, Immune Response, And Microbiota Of Lactating Sows, Tao Wang, Pieter Langendijk, Paula Azevedo, Lluis Faba, Bin Zuo, Jiangchao Zhao, Chengbo Yang

Animal Science Faculty Publications and Presentations

Certain types of fiber inclusion in sow diets can offer benefits such as promoting a healthy microbiome, improving intestinal health, and enhancing welfare through satiety mechanisms. While most research has focused on gestating sows, studies on lactating sows, especially regarding fiber types, levels, and fermentation rates, are limited. This study explored how fiber inclusion and fermentation rate affect lactation performance, nutrient digestibility, immune response, and microbiota. The study involved 136 lactating sows (Landrace x Large White) assigned to four dietary treatments with varying total dietary fiber (TDF) levels and proportions of fast-fermentable fiber. Diets 1 and 2 had low TDF …

Color Development Of Direct Acidified Pork Sausage Containing Alternative Curing And Reducing Agents, Jacob R. Tuell, Harley Francis, Sydney Bentz, Ashley R. Pitti, Morgan L. Denzer, Derico Setyabrata

Animal Science Faculty Publications and Presentations

This study evaluated the inclusion of preconverted alternative cures (celery powder [CELERY], beet powder [BEET]) compared to conventional sodium nitrite (NaNO2 [NITRITE]) formulated to 125 ppm of ingoing nitrite (NO2) in pork sausage acidified with encapsulated citric acid. Formulations included cherry powder (CHERRY) at 1000 ppm as an alternative cure accelerator, conventional sodium erythorbate (ERYTH) at 547 ppm, or no cure accelerator (NONE). The application of a holding period (OVERNIGHT) or not (IMMEDIATE) prior to thermal processing was evaluated. Batches (n = 3) were prepared in a 3 x 3 x 2 factorial arrangement of cures, accelerators, and holding periods. …

Nests With Higher Thermal Variation Produce Fewer Fledglings With Larger Bills Than Higher Temperature Nests, Salvador Barraza-Del Barco, William Kirckpatrick, Sarah Heissenberger, Sarah Durant

2025 Research Poster Competition

Warmer temperatures and increased temperature variability are predicted in the future due to climate change. Phenotypic outcomes of avian nestlings are heavily impacted by nest temperature. We examined metabolic rates and growth of Eastern Bluebird nestlings subjected to increased mean temperature and increased temperature variability within the nest during development.

Stress Affects Infectious Disease Outcomes In Canaries, Vansh Singhal, Erin Sauer, Salvador Barraza-Del Barco, Kamiah H. Turner, William H. Kirkpatrick, Weston Perrine, Sarah Heissenberger, Sarah E. Durant

2025 Research Poster Competition

Chronic stress is related to a decline in immune function in all living organisms and is known to increase the likelihood of developing or exacerbating chronic non-infectious diseases. However, the role of chronic stress in affecting outcomes of infection important to individual health and endpoints important for epidemic dynamics (e.g., likelihood of transmission) are not well understood. In this study we exposed canaries (Serinus canaria) to chronic stress or control conditions after which they were inoculated with Mycoplasma Gallisepticum, a bacterium that causes respiratory disease in birds.

Following the chronic stress protocol, the canaries were assessed every day for measures …

Consumer Preferences And Valuation For Sustainably Produced Rice In Ghana, Adabrah-Danquah Vera, Durand-Morat Alvaro, Lawton L. Nalley, Mandiaye Diagne, Benedicta Nsiah Frimpong, Wei Yang

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Improving the sustainability of rice, a global food staple with a significant environmental footprint, is of utmost importance, given the growing population and increased depletion of natural resources. The Sustainable Rice Platform (SRP) standard is the first globally recognized certification standard for sustainable rice production. SRP comprises 41 requirements structured under 12 indicators and 8 themes, through which farmers can receive SRP certification and use the SRP label. This study assesses consumers' preferences for SRP-certified sustainable rice in Ghana. We surveyed 1168 consumers in Accra, Kumasi, and Tamale, the three largest cities in Ghana, to ascertain their preferences for each …

Consumer Preferences For Low-Methane Beef: The Impact Of Pre-Purchase Information, Point-Of-Purchase Labels, And Increasing Prices, Kelly A. Davidson, Brandon R. Mcfadden, Sarah Meyer, John C. Bernard

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Cattle production is estimated to be the largest methane (CH₄) emitter associated with consumer demand in the United States of America (U.S.). With a national commitment to reducing methane emissions by 30% before 2030, methane-reducing additives (MRAs) in livestock feed are being explored as a viable solution. This study investigated consumer preferences for low-methane ground beef produced using one of three MRAs with varying levels of methane mitigation: Aspagopsis taxiformis (seaweed), the organic compound 3-nitroxypropanol (3NOP), or a blend of essential oils (e.g. garlic extract and citrus). In a nationally representative survey, 3,009 respondents completed a labeled discrete …

Characterization Of An Acetogenin-Carrying Nanosuspension And Its Effect On Bacteria Of Interest In The Poultry Industry, Brandon A. Lopez-Romero, Gabriela Aguilar-Hernandez, Billy Hargis, Maria De Lourdes Garcia-Magana, Ulises M. Lopez-Garcia, Rosa I. Ortiz-Basurto, Adalberto Zamudio-Ojeda, Juan D. Latorre, Efigenia Montalvo-Gonzalez

Poultry Science Faculty Publications and Presentations

This work aimed to develop a nanosuspension (NSps) as an acetogenin (ACGs) carrier, using soy lecithin (SL) and hydroxypropyl-beta-cyclodextrin (beta CD) named NSps-beta CDSL-ACGs. It was characterized by various spectroscopic techniques (DLS, FTIR, UV-vis diffuse reflectance). Moreover, the NSps morphology was observed by transmission electron microscopy (TEM). Also, the antibacterial activity of NSps-beta CDSL-ACGs was evaluated against strains of interest in the poultry sector. NSps-beta CDSL-ACGs presented nanometric size (207-239 nm), acceptable polydispersity index (PDI) values (0.13-0.17) and a high Z potential value (-47.17-50.36 mV), demonstrating high stability. The presence of ACGs in NSps-beta CDSL-ACGs was confirmed by FTIR analysis. …

Water Homeostasis Gene Expression In The Kidney Of Broilers Divergently Selected For Water Conversion Ratio, Kentu Lassiter, Loujain Aloui, Elizabeth S. Greene, Maricela A. Maqueda, Travis Tabler, Sami Dridi, Robert F. Wideman Jr., Sara Orlowski, Walter G. Bottje

Poultry Science Faculty Publications and Presentations

Divergent selection of broilers for water conversion ratio has established and high-(HWE) and low- water efficient (LWE) broiler lines. Two 2 × 2 factorial experiments were conducted to assess the gene expression profile of systems involved in renal water homeostasis. In Exp. 1, male and female HWE and LWE broilers were individually phenotyped between 4 and 6 wks of age to determine growth performance and water conversion ratio (g water intake/g body weight gain). Kidney samples were obtained from 5 males and 5 females from each line. In Exp. 2, HWE and modern random bred …

Research Note: Increased Lipid Accumulation Within Broiler Preadipocytes During Differentiation In Vitro At Atmospheric Oxygen Tension, Jessica Moraes Cruvinel, Elizabeth S. Greene, Rachel W. Read, Kichoon Lee, Sami Dridi, Paula R. Chen

Poultry Science Faculty Publications and Presentations

In the broiler industry, intensive genetic selection has been placed on muscle growth which has undesirably led to increased fat accretion. Models of chicken preadipocyte differentiation in vitro have conventionally used incubators without the ability to control oxygen (O₂) tension; thus, the cells are exposed to atmospheric (∼20-21%) O₂, which is supraphysiological compared to the O₂ tension within adipose tissue. The objective of this study was to investigate embryonic broiler preadipocyte differentiation at different O₂ tensions, including atmospheric (20%), physiological (5%), and hypoxic (1%). Culture at 1% O₂ resulted in increased …

Effects Of Production System With Or Without Growth-Promoting Technologies On Growth And Blood Expression Of (Cyto)Chemokines And Heat Shock And Tight Junction Proteins In Bos Taurus And Indicus Breeds During Summer Season, Mark Branine, Ashley K. Schilling-Hazlett, Pedro Carvalho, Kim R. Stackhouse-Lawson, Edilane C. Martins, Julia T. De Silva, Laura Amundson, Chris Ashworth, Mike Socha, Sami Dridi

Poultry Science Faculty Publications and Presentations

Heat stress (HS) induced by global warming is a real welfare, productivity, and economic burden of cattle production. However, some cattle breeds have superior physiological adaptive traits to others, yet the underlying molecular mechanisms are not fully defined. The present study aimed, therefore, to determine the expression profile of stress-related molecular signatures in the blood of thermosensitive Angus (Bos taurus) and thermotolerant Brahman (Bos indicus) cattle breeds managed without (CON) or with growth-promoting technology (TRT) during the summer (April-October, 2023) season in Colorado, US. Body weight (BW) was significantly increased from April to October, and the amplitude was greater for …

Exploring Topological Defects In Janus Bilayers Of Cr(I,Cl)3 And Cr(I,Br)3, Taksh Patel, Suyash Rijal, Charles Paillard, Changsong Xu, L. Bellaiche

2025 Research Poster Competition

Chromium halides such as CrI3 have attracted interest recently. They possess the remarkable property of sustaining long-range magnetic order down to the thickness of only a few layers [1, 2]. However, CrI3 lacks Dzyaloshinskyii– Moriya interaction (DMI) due to inversion center present between the adjacently bonded Chromium atoms.

The inversion center can be removed through the fabrication of Janus Monolayers by adding another trihalide along with Iodine to synthesize the material, that is to grow Janus monolayers Cr(I, X)₃ where X is another halide such as Cl or Br [3].

Previous work has predicted non-trivial spin textures such as …

Broiler Breeders Today: Feather Development And Nutrition, Justina Caldas

Proceedings of the Arkansas Nutrition Conference

The broiler industry in the US has observed a consistent decline in fertility and hatchability, particularly the past 5 years. There are numerous managerial and nutritional approaches to optimize the pullet and subsequent mature broiler breeder, and these proceedings focus on feathering. Moreover, these proceedings examine the quantity and quality of broiler breeder plumage as affected by both pullet and hen nutrition.

Human Serum Albumin Interaction With Organochlorine Pesticides, D. S. Sanford, R. Yadav, A. Mishra

Journal of the Arkansas Academy of Science

Human serum albumin (HSA) is the most abundant blood plasma protein and plays a crucial role in drug transport and physiological homeostasis. HSA has a highly flexible structure consisting of three domains, each with multiple binding sites lined with hydrophobic and hydrophilic residues. The structural properties of HSA make it a robust reservoir and receptor for various endogenous and exogenous compounds, including therapeutic drugs. Organochlorine pesticides (OCPs) are a subclass of pesticides characterized by their chlorine content. Once widely used, these compounds remain persistent in the environment and biological systems despite regulatory restrictions in many developed countries. The strong ligand-binding …

Kinetics Of Protein And Amino Acids, S. Y. Liu, M. Toghyani, S. P. Macelline, P. H. Selle

Proceedings of the Arkansas Nutrition Conference

Protein and amino acid nutrition is key to poultry growth and sustainability, with synchrony between glucose and amino acid availability being critical for efficient feed conversion. While non-bound amino acids (NBAA) are rapidly absorbed and increasingly used to reduce crude protein levels, their fast uptake may disrupt amino acid balance and reduce nutrient utilization compared to protein-bound amino acids. Future research should redefine amino acid requirements in low-CP diets, explore the metabolic fate of NBAA, and investigate how protein sources affect gut microbiota and host metabolism.