Digital Commons Network^™

Providing Proteins To Belizean Residents Through Poultry Products, Ellis Freel

Poultry Science Undergraduate Honors Theses

Belize is a food insecure, developing country. Although Belize has plenty of nutritious food in-country, the exportation of that food to generate income contributed to a distribution issue of that nutritious food. More impoverished areas of Belize do not have access to nutritious food because of the lack of affordability and high export rates. Diets with a lack of food, or lack of balanced, nutritious food can negatively impact growth and cognitive development, especially in children. Poultry is one of the only products in Belize not able to be exported. Implementing poultry into Belizean diets would affordably alleviate food insecurity …

Assessing The Use Of Regenerative Agriculture In California Almonds As Climate Change Resilience, Skyler M. Seamons

Master's Projects and Capstones

The agriculture sector is responsible for 10% of the United States’ greenhouse gas emissions. In turn, anthropogenic climate change threatens crops. With its Mediterranean climate, California is the country’s largest agricultural-producing state. Many California crops are at risk due to increasing temperatures and changed precipitation patterns. This paper investigates regenerative farming techniques as a tool to protect California crops from a changing climate. Almonds are used as a case study to analyze the soil management practices, finances, and policies underlying regenerative agriculture in California. A literature review and comparative analysis are used to compare regenerative and conventional soil management practices …

Ancient Wisdom, Modern Prosperity: Harnessing Traditional Ecological Knowledge To Revitalize Australia's Economy, Environment, And Human Wellbeing, Annabelle L. Baulch

Student Theses 2015-Present

This paper explores the traditional knowledge of Australia’s Indigenous people and how it can improve Australia's environment, health, and economic prosperity to shape a more sustainable future. Indigenous Australians managed the land for thousands of years; however, being forced off the land following European colonization resulted in terrible cultural, social, and environmental disruption for Aboriginal Australians and made conservation efforts difficult. Wildfires, imported species, mining, and agriculture is steadily destroying the Australian ecosystem, contributing to climate change, species extinction, and gaps in our cultural and ancestral knowledge. Chapter One overviews Australia's environmental issues; it uses quantitative data to explore the …

Decoding Generation Z: A Perceptions Content Analysis, Olivia Larson

Agricultural Education, Communications and Technology Undergraduate Honors Theses

This thesis explores the multifaceted nature of Generation Z through a content analysis, aiming to identify the range of characteristics and preferences within this cohort. By delving beyond prevalent stereotypes, this study addresses the gap in understanding regarding Generation Z's learning styles, communication preferences, work ethics, and personal values. Through examination, this research provides insights crucial for marketers and educators seeking to engage and educate Generation Z effectively.

Moisture Sorption And Quality Characteristics Of Instant Rice, Anna Mays, Griffiths Atungulu

Food Science Undergraduate Honors Theses

Market demand for instant rice--a processed form of rice that is cooked and dehydrated before it is sold--has risen tremendously and become a significant component of the rice industry. Compared to freshly cooked rice, the quality of instant rice (in terms of texture, color, aroma, etc.) is much lower. There exists little information regarding how instant rice’s storage conditions affect its quality. Such information may be elucidated by studying sorption isotherms which describe the storage temperature, relative humidity, and instant rice moisture relationships.

The purpose of this study was to generate moisture sorption isotherms of instant rice for temperatures and …

Evaluating The Effect Of Garden-Based Education On Young Learners’ Preferences For And Willingness To Try Healthy Food, Sierra Gregory

Agricultural Economics and Agribusiness Undergraduate Honors Theses

Childhood obesity in American children has tripled in the last 20 years, and 85% of current healthcare spending is linked to diet-related diseases. The consumption of highly processed foods is linked to these trends and makes up more than half of an average American youths’ diet. Reducing the consumption of highly processed foods in children’s diets can be addressed, in part, by addressing childhood neophobia (willingness to try new foods) associated with whole foods like fruits and vegetables. Influence over behavioral areas such as nutrition and in early childhood is essential to long-term sustained health, and garden-based interventions shows promise …

Investigating Autonomous Ground Vehicles For Weed Elimination, Abraham Mitchell

Computer Science and Computer Engineering Undergraduate Honors Theses

The management of weeds in crop fields is a continuous agricultural problem. The use of herbicides is the most common solution, but herbicidal resistance decreases effectiveness, and the use of herbicides has been found to have severe adverse effects on human health and the environment. The use of autonomous drone systems for weed elimination is an emerging solution, but challenges in GPS-based localization and navigation can impact the effectiveness of these systems. The goal of this thesis is to evaluate techniques for minimizing localization errors of drones as they attempt to eliminate weeds. A simulation environment was created to model …

Yield And Nutritive Quality Of Fresh And Ensiled Reduced Lignin Alfalfa In Monoculture And Diculture With Novel Tall Fescue, Morgan Boss

All Theses

The objectives of this research were to: (1) evaluate the yield, nutritional value, and digestibility of fresh and ensiled reduced lignin alfalfa (RLA; Medicago sativa L.) in monoculture and when mixed with novel endophyte-infected tall fescue (F; Festuca arundinacea) in comparison to a conventional alfalfa (CA) cultivar; and (2) evaluate ensiled samples under varying DM concentrations; with or without inoculant. A trial was prepared as a randomized complete block design with 4 replicates per treatment. Treatments included reduced lignin alfalfa (RLA), conventional alfalfa (CA) and tall fescue (F) plots as well as RLA/F and CA/F plots. Plots were harvested on …

Impact Of Early-Season Postemergence Co-Applications Of Foliar And Residual Herbicides On Crop Injury, Growth, And Yield In 2,4-D- And Dicamba-Tolerant Cotton (Gossypium Hirsutum L.), Logan N. Vallee

LSU Master's Theses

Studies were conducted in 2021 through 2023 at the LSU AgCenter Dean Lee Research and Extension Center near Alexandria, LA to determine the sensitivity of 2,4-D- or dicamba- tolerant cotton (Gossypium hirsutum L.) to an early season application of a Group 15 and foliar-only herbicides. Both studies were randomized complete block designs with a two-factorial arrangement of treatments with four replications. In the dicamba-tolerant cotton study, Factor A consisted of no foliar-herbicide, dicamba alone, glyphosate alone, or dicamba plus glyphosate. Factor B consisted of either no Group 15 residual herbicide, acetochlor, or S-metolachlor. In the 2,4-D- tolerant cotton …

Analyzing The Use Of Agricultural Literacy Assessments: A Descriptive Study Of The Implementation Of The Judd-Murray And The Longhurst-Murray Agricultural Literacy Instruments, Taryn S. Whitaker

All Graduate Theses and Dissertations, Fall 2023 to Present

The purpose of this study was to provide a descriptive snapshot of how the JMALI and LMALI agricultural literacy assessment instruments have been implemented within the United States. It was concluded that the greatest number of respondents used the assessment instruments as formal assessment diagnostic tools to determine agricultural knowledge and improve instruction. When assessments are used as intended, the likelihood they will effectively achieve their intended goals increases.

This study was the first step in determining how agricultural literacy assessments are currently being used. However, future research should focus on improving the collection of agriculture literacy assessment scores and …

Halosulfuron Plus Prosulfuron And Propanil Interactions For Weed Control In Louisiana Rice Production, John A. Williams

LSU Master's Theses

A greenhouse study was conducted on November 18, and December 2, 2020 at Louisiana State University in Baton Rouge, Louisiana to evaluate the interaction between a pre-packaged mixture of halosulfuron plus prosulfuron mixed with propanil for alligatorweed control. Antagonism occurred when halosulfuron plus prosulfuron at 55 g ha-1 was mixed with propanil at 2,242 g ha-1 at all evaluation dates and antagonism was also observed with halosulfuron plus prosulfuron at 83 g ha-1 mixed with propanil at 2,242 g ha-1 at all evaluation dates except 14 DAT with observed controls of 69 to 77% compared with expected controls of 94 …

Polymorphism And Plasticity In The Termite Caste System, Austin Merchant

Theses and Dissertations--Entomology

Developmental plasticity, manifested as a caste system, is integral to the success of eusocial insects because of the way in which it decouples the various tasks that a single, solitary organism would normally be responsible for, allowing individuals to specialize towards their given roles while keeping vulnerable members of the colony, such as those responsible for reproduction, safe from harm. Termites exhibit particularly complex caste systems that can be divided into three types of castes: workers perform manual labor, such as foraging and brood care; soldiers defend the nest; and reproductives lay eggs. Each of these castes, as well as …

Indoor Pests And Human Health: Characterizing Contaminants And Improving Mitigation, Johnalyn Gordon

Theses and Dissertations--Entomology

Much of the United States population spends the majority of their time indoors and within the home. Not only are indoor arthropod pests an unsightly nuisance in our homes, but they can have serious impacts on human health, especially with chronic exposure. In addition to negative health impacts, costs associated with these medical impacts can be tremendous. For these reasons, it is critical to develop comprehensive strategies for pest reduction and mitigation of associated health impacts. The work outlined in this dissertation represent examination of the distribution of a hypothesized bed bug allergen within the indoor environment, identification of a …

Perceptions Of Available Funding Opportunities For West Tennessee’S Young And Beginning Row Crop Farmers, Logan Meeks

Murray State Theses and Dissertations

Research quickly identified many different avenues of funding available to new and beginning traditional row-crop farmers in Tennessee, but questions surrounding local farmers’ knowledge of these opportunities are in question. Many programs specific to the New and Beginning Farmer demographic boasted the potential benefits of using these programs as well as the good work these programs are accomplishing. The current increase in cost of traditional row-crop funding continues to drive the need for more funding resources with New and Beginning Farmers. Providing resources of where farmers can find the best available funds for their operation will expand the level of …

Autism In Agricultural Education: A Case Study Of An Adolescent With Autism Spectrum Disorder And Their Parent On Career And Technical Education, Grace Miller

Theses and Dissertations--Community & Leadership Development

Autism spectrum disorder (ASD) is a unique and often misunderstood diagnosis. Little is known about the experiences of adolescents with ASD. As students with ASD graduate high school, many are under- and unemployed. Career and technical education (CTE) in U.S. schools is intended to prepare all students for careers post-secondary. Agricultural education is one of the predominate career clusters within CTE. This qualitative single case study sought to create a platform for both a student and their parent to share their experiences in agricultural education and CTE. Participants were an adolescent with ASD who had taken at least one year …

Environmental Biology Masters Capstone, Antonio Gonzalez-Pita

Regis University Student Publications (comprehensive collection)

Human wildlife interactions (HWI) pose a complex challenge for wildlife managers. Human encroachment into wildlife habitat and the growing number of outdoor recreationists are increasing the frequency of contact and conflict, especially in regions such as the Front Range of Colorado. Geographic information systems (GIS), which use a combination of remote sensing and environmental survey data, allow for predictive spatial analyses of where human wildlife interactions are likely to occur. I used publicly reported observations of moose to create spatial predictive maps in a species distribution model framework. Slope and elevation were shown to be the strongest predictors of HWI, …

A Tale Of Two Working Landscapes, Sage C. Sutcliffe

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Assessing Endophyte Frequency Distributions And The Effect Of Epichloë Brachyelytri In The Chemotypic And Genotypic Diversity Of Brachyelytrum Erectum, Rachel Ann Sneed

Theses and Dissertations--Plant Pathology

Seed-transmissible epichloid fungal endophytes are best known for their roles as defensive mutualists in cool-season grasses. Historically, the discovery of fungal endophytes was driven by investigations of plant toxicity to livestock, followed by extensive study of their alkaloids and protection against insects and nematodes. Epichloae can produce four classes of alkaloids: ergot alkaloids, lolines (saturated aminopyrrolizidines), indole–diterpenes, and peramine. It is increasingly evident that these hereditary symbionts have much more diverse chemical profiles both in individual populations and between them. To this end, differences in chemotypic profiles of these symbionts may translate to different evolutionary and environmental advantages across plant …

A Road Map For Place Based Collaboration For Conflict Reduction, Joseph L. Zecher

Undergraduate Theses, Professional Papers, and Capstone Artifacts

No abstract provided.

Assessment Of Open Top Chambers To Simulate Effects Of Climate Change On Soil Temperature And Cover Crop Response In Agricultural Systems, Gretchen Bahmueller

Honors Theses and Capstones

Climate change is expected to yield warmer winters that have the potential to place additional stress on our already stressed agricultural systems. Understanding how agricultural systems may respond to these changes is essential to creating crop and land management plans that ensure food security for future generations. To better understand how warming winters can/will affect air and soil temperatures and cover crop performance, open top chambers (OTCs) were deployed post cover crop seeding in a field experiment at the UNH Kingman Research Farm in Madbury, NH. The experiment consisted of four cover crop treatments sown into or after corn: an …

Estimating South Dakota’S Capacity To Meet K-12 School Meal Fruit And Vegetable Requirements With State-Grown Produce, Bridgette Bienias

Electronic Theses and Dissertations

Objective: Quantify South Dakota (SD)’s capacity to procure locally-sourced fruit and vegetables (FVs) for K-12 school meals.
Methods: Secondary analysis of 2017 SD agricultural census and school meal data. Yields were converted to edible cups of FVs using school meal guidelines provided by the U.S. Department of Agriculture. Student enrollment and meal redemptions were used to estimate the number of FV cups needed.
Results: Estimated SD FV production met minimum total K-12 cup requirements, except for total fruit (66%) and dark green vegetables (80%). Legumes supplied 77% of the total cups of vegetables produced in 2017, whereas dark green vegetables …

A Conservation Model: Costa Rican Conservation Strategies Effectively Preserve Their Threatened Primates, Ryan Belmont

Regis University Student Publications (comprehensive collection)

The wildlife of Costa Rica has experienced various anthropogenic threats over the last century including climate change and agricultural expansion. The mantled howler monkey (Alloutta palliata), Central American spider monkey (Ateles geoffroyi), white-faced capuchin (Cebus imitator), and the Central American squirrel monkey (Saimiri oerstedii) are Costa Rica’s native primates that face several anthropogenic threats such as deforestation for agriculture and climate change. In response to increased threats to its four native species of non-human primates, Costa Rica has implemented effective governmental conservation tactics such as the Payments for Environmental Services program, ecotourism …

Financial Considerations For U.S. Equine Rescues: A Comparison Of Adoption-Based Vs. Sanctuary-Based Organizations, Carolyn V. Frank

Honors Theses and Capstones

No abstract provided.

Evaluation Of Winter Cereal Cover Crops Across Nitrogen Management Stragies For No-Till Corn Production, Robert Nalley

Theses and Dissertations--Plant and Soil Sciences

Rye (Secale cereale L.) is the most popular winter cereal cover crop utilized before corn, but wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) may provide a comparable value due to their similar fibrous root systems. Despite the benefits associated with winter cereal cover crops, drawbacks are possible for the subsequent corn crop. A field study was conducted with three site-years in Kentucky to measure the impact of the three winter cereals across nitrogen (N) management strategies. Wheat produced the most biomass compared with barley or rye cover crops. Wheat and rye needed approximately 100 more …

Environmental Implications Of Modern Food Production: An Analysis For The Conscious Consumer, Jessica T. Coming

Cal Poly Humboldt theses and projects

This project explores the pathways by which agriculture affects the environment and determines which foods have the greatest climate, water, and land impacts. Agricultural effects on the environment are extensive, from loss of habitat and declines in regional biodiversity to disruption of global nutrient cycles and climate change. Global food production accounts for 26-34% of annual anthropogenic greenhouse gas emissions, makes up 38-46% of habitable land, and is responsible for 70% of freshwater extraction. The effect of agriculture on the environment is most significantly dictated by what type of food is being produced. Animal-based food products consistently have the highest …

Women In Extension Persevering In Leadership Roles, Lexis Danielle Trickett

Graduate Theses, Dissertations, and Problem Reports

Over the last several decades, the rates at which women have been pursuing higher levels of education have steadily increased. However, there is a discrepancy between the number of women graduating, and the amount entering the workforce, specifically in leadership roles. The purpose of this study was to share a current profile of women in the West Virginia Cooperative Extension Service by allowing them to describe their career journeys, supports and barriers they may or may not have faced, and mentoring experiences. By using a non-experimental quantitative methodology, a population of male and female Extension Agents and Specialists were surveyed …

Effects Of Habitat Selection And Individual Quality On The Reproductive Success Of Barn Owls (Tyto Furcata), Jaime E. Carlino

Cal Poly Humboldt theses and projects

The hypothesis of adaptive breeding habitat selection proposes congruence between the evolved selection of habitats and fitness components such as reproductive success. However, mismatches between habitat selection and observed fitness outcomes are not unusual and can arise for multiple reasons. Variation in individual qualities of animals has also been found to affect reproduction and survival. I examined associations between barn owl nest box selection, reproductive output, and plumage characteristics previously shown to correspond to individual quality. I found that barn owls selected tall nest boxes made of wood, mounted high off the ground, and with increased proportions of grassland around …

Insights Into The Challenges Posed By Climate Change And Land Competition To Brazil’S Midwest Pulpwood Market, Roberto Hajime Sant Anna Kimura

Theses and Dissertations

I investigated the effect of climate change in one of the few expanding markets in the world in Brazil. In the last decades the demand for pulpwood increased from zero to 11 million tons, leading to an expansion of 700 thousand hectares of Eucalyptus plantation. In 2024, a new mill will start operating increasing the consumption of wood fiber by 8.2 million tons (+49%). I used mathematical programming to investigate how different scenarios of productivity and land will affect the market. My results showed that around 946,000 hectares (+124%) of additional timberland will be necessary in the upcoming decades. The …

The Influence Of At-Planting Insecticide Treatments On Tobacco Thrips, (Thysanoptera:Thripidae), And Reniform Nematode, (Tylenchida:Hoplolaimidae), In Conventional And Thryvon Cotton Systems, Walker Brett Farmer

Theses and Dissertations

One of the objectives of this research was to evaluate the need for an additional imidacloprid seed treatment on ThryvOn^® (Bayer Crop Science^®, St. Louis, MO) cotton to effectively manage tobacco thrips, Frankliniella fusca (Hinds). While evaluating thrips densities and damage ratings, ThryvOn cotton continued to display reduced damage and thrips populations than non-ThryvOn. Thrips populations and damage ratings were consistently reduced when incorporating a higher rate of imidacloprid, but they were not reduced enough to justify the higher rates of imidacloprid. Another objective of this research was to evaluate the impact of aldicarb (AgLogic Chemical^{® …}

Characteristics Of Award-Winning Children’S Books About Agriculture: An Analysis Of Content, And The Perspectives Of Authors, Illustrators, And Publishers, Addison L. Beckham

Graduate Theses and Dissertations

The purpose of this two-article qualitative study was to characterize children's literature about agriculture and to describe the perceptions of authors and illustrators who are responsible for writing and designing these successful publications. This will result in the ability of organizations like Feeding Minds Press to provide writers, illustrators, and publishers with effective strategies and techniques to improve the accuracy and overall quality of children’s literature about agriculture. Few parameters exist for authors of children’s books about agriculture (Biser, 2007). These parameters are necessary to ensure the quality and accuracy of these educational efforts (Serafini, 2012). Though Feeding Minds Press …