Digital Commons Network^™

Towards The Quantification Of Estrone And 17Β-Estradiol Conjugates In Dairy Cattle Urine Sorptive Stir Bar Extraction And Gas Chromatography-Mass Spectometry, S.M. Istiak Ahmed

Masters Theses & Specialist Projects

The global concern regarding the presence of compounds with estrogenic properties in the environment has grown significantly. Endocrine-disrupting compounds (EDCs) are environmental pollutants that disrupt the endocrine systems of both wildlife and humans. Estrogens, with their potent estrogenic effects, are particularly noteworthy among the various substances with endocrine-disrupting properties. They are of concern due to their prevalence in the environment, especially due to dairy waste contamination. These lipophilic compounds can accumulate in livestock fat tissues, potentially entering the human food chain. Sulfated forms of estrone and β- estriol, which exhibit a higher degree of saturation than their non-conjugated counterparts, have …

Exploring The Diverse Applications Of Stigmasterol From Plants: A Comprehensive Review, Ummara Khan, Faisal Hayat, Fakhara Khanum, Nazi̇r Ahmed, Mohamed Abdi̇n, Dyaaaldi̇n Abdalmegeed, Neva Karataş, Zhi̇hong Xi̇n

Turkish Journal of Agriculture and Forestry

Stigmasterol has been studied for its numerous biological effects on various metabolic diseases, but its potential role as a ubiquitous biomolecule in the plant kingdom is still in its infancy. Efficient utilization of stigmasterol’s properties, such as antimicrobial, antioxidant, and self-assembly, is necessary for the food industry to effectively prevent microbial growth in food., in addition, to delaying rancidity by slowing down lipid oxidation. The use of safer alternatives for postharvest disease control, which is pressuring scientists to consider stigmasterol as a potential solution for various food-related issues. This article reviews stigmasterol's functions in the food industry, including its detection, …

Determination Of The Phytochemical Contents And Pomological Properties Of Chokeberry(Aronia Melanocarpa L.) Fruit In Different Harvesting Periods, Selma Boyaci, Şule Polat, Nesi̇be Ebu Kafkas

Turkish Journal of Agriculture and Forestry

This study was conducted to determine some pomological properties and phytochemical contents such as total monomeric anthocyanin, total phenol, antioxidant activity, sugar, and organic acid of the chokeberry cultivars Nero and Viking, which are being cultivated in Türkiye, in 3 different harvest periods (the last week of August, the first week of September, and the second week of September). The highest total monomeric anthocyanin (794.63 mg/100 g), total phenol (5006.60 mgGAE/100 g), and antioxidant activity (79.33%) were obtained in the first harvest period of Nero. Glucose is the main sugar in chokeberry cultivars, and the highest glucose content (6.90%) was …

Effects Of Genotype And Nitrogen Topdressing On Rapeseed Seed Yield And Stalkcombustion Properties, Mari̇na Brčić, Tajana Kricka, Ana Pospisil, Milan Pospisil

Turkish Journal of Agriculture and Forestry

The objective of this paper was to determine the effects of rapeseed genotype and nitrogen fertilization for dual purposes, i.e., on seed yield for human consumption and on the quantitative and qualitative value of harvested residues as feedstock to produce heat energy. The research was carried out in field trials set up under the agroecological conditions of northwestern Croatia at the University of Zagreb’s Faculty of Agriculture in the vegetation periods of 2012/2013 and 2013/2014. The research included three rapeseed genotypes (conventional hybrid SY Cassidy, cultivar Komando, and semidwarf hybrid PR45D03) and three nitrogen topdressing rates that included the supply …

Lignin Recovery From Hazelnut Shells, Özcan Gezen, Aleyna Fi̇li̇zfi̇danoğlu, Çağlar Özgener, İrem Deni̇z

Turkish Journal of Agriculture and Forestry

The main goal of this work was to study alkaline pretreatment of hazelnut shells (HSs) by utilization of NaOH and Ca(OH)2 with or without glycerol. The highest lignin recovery was obtained for NaOH-glycerol-pretreated HSs. This research also determined the efficiency of enzymatic hydrolysis where xylanase and cellulase were added to the pretreated residue. The highest amount of lignin of 63.2% was achieved when NaOH was used with glycerol in the pretreatment process. These findings revealed that the NaOH-catalyzed glycerol pretreatment applied in this study has great capability to be used in industrial applications.

Exploring The Potential Of Osmotic Dehydration With Honey To Develop Value-Addedfood From Watermelon (Citrullus Lanatus) Rind, Jaspreet Kaur, Dilpreet Singh Brar, Vikas Nanda

Turkish Journal of Agriculture and Forestry

This study demonstrates the viability of sustainably utilizing watermelon rind, a byproduct, by developing intermediate moisture food (IMF) through osmotic dehydration with honey as a sugar substitute. Response surface methodology and an artificial neural network were employed to optimize the process, and enhanced solid gain and water loss were achieved. The findings revealed that temperature exerted the most significant influence, followed by the solution-to-rind ratio, immersion time, and osmotic solution concentration, impacting water loss and solid gain in the IMF product. The optimized parameters for maximum water loss and solute gain were a temperature range of 330.15–331.15 K, immersion time …

Genetic Diversity And Population Structure Analysis Of Grapevine Germplasm Of Theaegean Region (Türkiye) By Ssr Markers, Canan Yüksel Özmen, Funda Baydu, Nahi̇d Hazrati̇, Tamer Uysal, Ahmet Semi̇h Yaşasin, Cengi̇z Özer, Burcu Peli̇n Büyük, Yilmaz Boz, Bariş Özünlü, Ali̇ Ergül

Turkish Journal of Agriculture and Forestry

The Aegean region makes a prominent contribution to Turkish viticulture. The region, which includes important grape culture centers such as Manisa, Denizli, and İzmir, has extremely favorable conditions for the cultivation of seedless grapes as well as table and wine grape varieties. In this region, which possesses rich grapevine genetic diversity together with its area and production potential, it is seen that there is variety confusion caused by different nomenclature and intravariety variations. In addition, some old grape varieties that are not used in cultivation are at risk of disappearing. In order to address these problems, the viticulture potentials of …

Cereal–Vegetable Intercropping: Hindrances And Strategies To Increase Intercropping, Iqra Zaki̇r, Ahmad Abdul Wahab, Tahira Abbas, Sakeena Tul-Ain Haider, Sobia Irum, Samreen Sabir, Sajjad Hussain, Shakeel Ahmad

Turkish Journal of Agriculture and Forestry

Climate change is the major factor that affects crop yield and productivity in the long term. The changing climate scenario is now impacting farmers’ lands and their outcomes in both developed and developing countries. The intercropping of crop species or varieties that have high arable capability is a promising technique for increasing crop production without increasing agricultural inputs. In intercropping, the selection of varieties, optimum sowing time, method of plant arrangement, and sowing proportion are required to make the design suitable for an intercropping system. Intercropping is one of the most highlighted agronomic practices helping to improve soil health (structure, …

Determination Of Genetic Diversity Among Some Naturally Growing Arbutus Andrachne L.Genotypes In Türkiye Using Morphological, Biochemical, And Molecular Markers, Ni̇lda Ersoy, Ramazan Süleyman Göktürk, Emi̇ne Orhan, Mustafa Erkan, İbrahi̇m Baktir, Hali̇l İbrahi̇m Sağbaş

Turkish Journal of Agriculture and Forestry

The strawberry tree (Arbutus andrachne L.) is a wild edible fruit that grows naturally in the Mediterranean climate zone, including Türkiye. In this study, the genetic morphological, biochemical, and genetic diversity of 10 superior strawberry tree genotypes growing naturally in Antalya Province in Türkiye were investigated. Morphological and biochemical characterization were performed based on some important fruit characteristics. In addition, genetic variation was detected at the molecular level using simple sequence repeat (SSR) markers. The genotypes exhibited fruit weight, width, length, and shape index values of 1.22–2.12 g, 12.07–15.28 mm, 10.15–14.24 mm, and 0.99–2.22, respectively. The biochemical parameters soluble solid …

Growing Agriculture Literacy’S Presence In America’S Classrooms, Emily Stone

Journal of Food Law & Policy

“Americans, as a whole, were at least two generations removed from the farm and did not understand even the most rudimentary of processes, challenges, and risks that farmers and the agricultural industry worked with and met head-on every day.” This quote perfectly describes the mindset of agriculture stakeholders in 1981 as they began to realize the drastic steps our education system had taken away from using principles of agriculture in K-12 education. As they saw it, Americans were moving out of rural America, away from farms, and becoming less connected to the food they daily consumed. Simultaneously, the education system …

The Casnr L.I.N.K.S. Newsletter: Learning Innovation Network For K-12 Schools, Volume 2, Edition 11, December 2023, Bailey Feit, Tammy Mittelstet

CASNR L.I.N.K.S. Newsletter

The purpose of this L.I.N.K.S. newsletter is to provide a monthly update of opportunities and resources for K-12 schools to connect with the University of Nebraska's CASNR Food, Energy, Water, and Societal Systems (FEWS²) programs and partners.

Included in this edition:

New engage in the range curriculum, World Wildlife Fund

The CASNR Change Maker Competition

Data Driven 2024: 4-H Statistics Field day

UNL CASNR six interest areas

Focus on Department of Food Science and Technology, Center for Grassland Studies, and Environmental and Sustainability Studies

Career spotlight: forest ranger, range management, US conservation specialist, environmental lobbyist, food chemist, nutritionist, nonprofit fund …

Village-Level Processing Of Pangi (Pangium Edule Reinw.) Seeds By The Obu Manuvu Improves The Edibility And Level Of Some Nutritional Factors [Research Note], Rovi Gem E. Villame-Gayagas, Jennifer P. Fronteras, Maria Christna D. Nacar, Aaron P. Lorilla, Pedro A. Alviola Iv

The Philippine Agricultural Scientist

Pangi (Pangium edule Reinw) seed is known to be a poisonous material. However, it becomes safe for consumption after processing. This study determined the effect of village-level processing by the Obu Manuvu community of Marilog District, Davao City, Philippines on the antinutrient and nutritional composition of Pangi seeds. Processing methods involved washing with running water for about 15 s, boiling in water for 30 min, and soaking in flowing water in a nearby river overnight. Results showed that after processing, the levels of antinutrients such as cyanogenic glycosides and oxalates were reduced significantly (p < 0.05) by 99.15% and 78.23%, respectively. Further, the tannin content was also significantly reduced by 96.15%. The crude fat content significantly increased (p < 0.05) by about 54%. Crude ash and fiber decreased, while protein did not change significantly (p < 0.05). Minerals such as calcium and zinc increased (p < 0.05) by 221.43% and 64.39%, respectively while the iron and manganese levels remained unaffected. Findings of the study suggested that the processing method by the Obu Manuvu effectively reduces the level of antinutrients, thereby improving the edibility and safety of Pangi seeds. Further, the processing method improves the level of some nutrients, specifically crude fat, calcium, and zinc.

Vulnerabilities Of Greater Prairie Chicken And Tier 1 At-Risk Species In Nebraska Caused By Grassland Transition To Woody Dominance, Robert Peterson

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Woody plant encroachment is a global threat and has been transitioning grasslands to woody dominance at a biome scale. This threat is present in the Great Plains grassland biome which is currently experiencing grassland biome collapse as the alternative woody biome advances northwest. Nebraska, which contains the most intact temperate grassland in the world, is currently at the front lines of this large-scale transition making this state’s management decisions vital for the remaining grasslands and the species which rely on these ecosystems. In this study, we assess the vulnerability of Greater Prairie Chicken and Tier 1 at-risk species in Nebraska …

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 …

Status Of The Western Australian Pastoral Rangelands 2023: Total Vegetative Cover And Cover Risk, Department Of Primary Industries And Regional Development

Natural resources published reports

The Department of Primary Industries and Regional Development (DPIRD) monitors and reports on the vegetation condition of pastoral rangelands in Western Australia. This 2023 short report uses remotely sensed total cover data available to the end of October 2023, rainfall data to the end of November 2023 and Stock Return data reported in 2022 (the most recent available) to determine cover risk. Cover risk at the land conservation district (LCD) level is an indicator of the likelihood of total cover declining to, or remaining at, low or very low levels. Total cover and cover risk may not be indicative of …

Assessing The Feasibility Of Implementing A Dairy Industry In Mauritius, Sophia Ultes

Economics Undergraduate Honors Theses

Mauritius faces food security and economic challenges due to its lack of a domestic dairy industry. To address this, the University of Arkansas partnered with the Ministry of Agro Industry and Food Security to explore the possibility of establishing a dairy sector on the island.

Through surveys and interviews with locals, including restaurant owners and grocery store customers, we investigated the demand for fresh milk. We also studied factors like consumer preferences and production costs. Our research, conducted with IRB approval, aimed to understand if people are willing to buy locally produced milk.

During the summer, our team visited Mauritius …

Growth Rates, Morphology, And Potential For Mariculture Of The Southern Population Of Crassostrea Virginica In The Lower Laguna Madre, Texas, Jerad Lee Fuelling

Theses and Dissertations

The Eastern Oyster also known as Crassostrea virginica, is an important resource here in the United States. Historically, this species has been overfished, poorly managed, and plagued by disease. Oyster mariculture is a growing industry here in the United States and is a sustainable solution to producing oysters. Texas has become the last coastal state to legalize oyster mariculture which means there is now a vast coastline with many unique bay systems that are open to this industry. One bay system that is particularly unique is the Lower Laguna Madre which is a hypersaline lagoon. Little is known about …

Aicropcam: Deploying Classification, Segmentation, Detection, And Counting Deep-Learning Models For Crop Monitoring On The Edge, Nipuna Chamara, Geng (Frank) Bai, Yufeng Ge

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Precision Agriculture (PA) promises to meet the future demands for food, feed, fiber, and fuel while keeping their production sustainable and environmentally friendly. PA relies heavily on sensing technologies to inform site-specific decision supports for planting, irrigation, fertilization, spraying, and harvesting. Traditional point-based sensors enjoy small data sizes but are limited in their capacity to measure plant and canopy parameters. On the other hand, imaging sensors can be powerful in measuring a wide range of these parameters, especially when coupled with Artificial Intelligence. The challenge, however, is the lack of computing, electric power, and connectivity infrastructure in agricultural fields, preventing …

Feed Value And Utilization Of Corn Residue: Implications For Cow Performance And Grazing Strategies, Kaylee E. Wheeler

Department of Animal Science: Dissertations, Theses, and Student Research

Two experiments were conducted to determine the correlation of corn residue feed value and utilization on cow performance and potential grazing strategies. A qualitative observation of corn residue grazing by 13 cattle herds across Nebraska was conducted over two years. Based on producer reported grain yields and stocking rates, it was found that these producers were generally not as aggressive as the recommended 1.2 animal unit months (AUM) for each 6,280 kg/ha (100 U.S. bushels/acre) of harvested grain. They stocked 17 to 101% of the recommendation and on average used 63% of the carrying capacity. Across herds, average body condition …

Investigation Of Breeding Objectives And Indexes-In-Retrospect, Hunter F. Valasek

Department of Animal Science: Dissertations, Theses, and Student Research

This thesis presents two projects that investigate the impacts of breeding objectives and indexes-in-retrospect within the beef cattle industry. The first project synthesized how changes due to planning horizon, breeding system, and sale endpoint in the economic breeding goal of cattle influence the relative emphasis of traits as well as the re-ranking of selection candidates. A total of three breeding systems that represent straightbred and crossbred cattle were used along with six planning horizons (2, 5, 10, 20, 30, and 50 yrs.) for both a weaning and slaughter point of sale. The combination of these different breeding objective attributes resulted …

Social Media Impacts On Arkansas Consumer Perceptions Of Gmos, Elizabeth R. Berner

Graduate Theses and Dissertations

This study builds upon previous consumer perceptions of GMOs studies. A need existed to determine what, if any, effects social media messages about GMOs had on consumer perceptions in Arkansas. The study utilized a qualitative approach with three focus groups. Data were analyzed using descriptive code. Participants were found to have a general understanding of GMOs, though discussion about what a GMO product was took an uncertain tone. Most participants did not consider GMOs as a factor when purchasing products. Rather participants considered characteristics such as price, quality, and convenience. Participants did not believe the infographics had changed their opinions …

Assessment Of Needs And Priorities For Precision Agriculture And Soil Testing In Arkansas, Solomon Frimpong

Graduate Theses and Dissertations

Optimum crop production is needed to meet the growing population's food, water, fiber, and energy needs. However, agricultural productivity is hampered by many destabilizing factors such as pest management challenges, declining water quantity, and climate change which threaten long-term food security. Maximizing productivity will require optimizing resources through Precision Agriculture (PA) by supplying inputs based on crop needs. Precision Agriculture offers tools that can be used to optimize crop management practices globally. However, stakeholders’ perceptions and the lack of data-driven site-specific recommendations limit stakeholders’ ability to fully harness the potential benefits of PA. Identification of stakeholder needs and approaches to …

Do Organic Farming Practices Improve Soil Physical Properties?, Humberto Blanco-Canqui, Sabrina J. Ruis, Charles A. Francis

Department of Agronomy and Horticulture: Faculty Publications

Organic farming (OF) is a reemerging system that could address food security and adverse environmental footprints of conventional farming (CF). However, how OF affects the soil physical environment, an essential pillar for soil ecosystem service delivery, is not well understood. This paper (1) reviews published global literature up to 13 July 2023 regarding the impacts of OF on soil physical properties compared with CF and (2) underlines research needs. Literature indicates OF improves some soil physical properties relative to CF although studies on some properties were few. Specifically, OF increased wet aggregate stability, saturated hydraulic conductivity, and plant available water …

University Of Nebraska-Lincoln Agricultural Research Division 121st Annual Report. July 1, 2006 To June 30, 2007., Institute Of Agriculture And Natural Resources

Agricultural Research Division: News and Annual Reports

Our Mission..... 4

Foreword..... 5

Research Highlights..... 6

Faculty Awards and Recognitions....14

Graduate Student Awards and Recognitions...17

Undergraduate Honors Student Research Program...22

Variety and Germplasm Releases....23

Patents.....24

Administration.....25

Administrative Personnel....25

Organizational Chart....26

Administrative Units....27

IANR Research Facilities....28

Faculty.....29

Agricultural/Natural Resources Units....30

Education and Human Sciences Departments...39

Off-Campus Research Centers....40

Interdisciplinary Activities....41

Visiting Scientists/Research Associates....42

Research Projects.....47

Agricultural/Natural Resources Units....47

Education and Human Sciences Departments...52

Off-Campus Research Centers....52

Interdisciplinary Activities....53

Publications.....55

Agricultural/Natural Resources Units....60

Education and Human Sciences Departments...82

Off-Campus Research Centers....85

Research Expenditures....88

The Quest For Immunity: Exploring Human Herpesviruses As Vaccine Vectors, Mohammed S. Kamel, Rachel A. Munds, Mohit S. Verma

Purdue University Libraries Open Access Publishing Fund

Herpesviruses are large DNA viruses that have long been used as powerful gene therapy tools. In recent years, the ability of herpesviruses to stimulate both innate and adaptive immune responses has led to their transition to various applications as vaccine vectors. This vaccinology branch is growing at an unprecedented and accelerated rate. To date, human herpesvirus-based vectors have been used in vaccines to combat a variety of infectious agents, including the Ebola virus, foot and mouth disease virus, and human immunodeficiency viruses. Additionally, these vectors are being tested as potential vaccines for cancer-associated antigens. Thanks to advances in recombinant DNA …

A Bio-Economic Modeling Analysis Of Livestock Grazing On Rangelands Utilizing A Supplementary Grazing Resource, Jessica L. Windh

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This dissertation is a compilation of 5 chapters culminating in a bioeconomic model of the interactions between an integrated crop-livestock system and native rangeland grazing system. The model is developed using data from the eastern Sandhills of Nebraska, a location where cropping systems of Eastern Nebraska border one of the last intact grasslands remaining in North America.

The first chapter introduces the reader to the systems that will be modeled in the dissertation. In Chapter 2 we used a linear regression to model grassland biomass production as a function of climatic variables; we were unsuccessful in modeling season-long production in …

Supplemental Table 1. Influence Of The Count Of Positive Days On Dmi, Milk Yield, Milk Fat, Milk Protein, And Pregnancy Rate, Addison Carroll, Paul J. Kononoff

Department of Animal Science: Dissertations, Theses, and Student Research

Response

Intercept

Devstarch

Devfat

DevNDF

DevPro

BIC

Manure And Wastewater Sampling Guide, Rhonda Miller, Cody Zesiger, Kalen Taylor, Matt Yost

All Current Publications

Manure and wastewater are resources that can reduce your fertilizer needs and help improve soil and your bottom line. It is important that manure and wastewater be sampled and tested so one can apply the manure and nutrients appropriately. Sampling and analysis should occur as close to land application as possible as nutrient concentration in manure and wastewater can change over time due to runoff, leaching, and changes in moisture percentage. Nitrogen can also be lost due to volatilization. There are two primary approaches for when to sample: (1) just before land application, and (2) at the time of land …

Genetic Evaluation Of Enteric Methane For Sustainable Irish Beef Cattle, Clodagh Ryan

ORBioM (Open Research BioSciences Meeting)

Background:

Globally, livestock agriculture significantly contributes to human-induced greenhouse gas emissions, particularly through methane production. A potential approach to effectively, durably, and progressively reduce enteric methane emissions at a reasonable cost is through animal breeding.

Methods:

Individual animal methane records were available from 1,508 multi-breed growing beef cattle using GreenFeed Emission Monitoring systems. The objective of this study was to derive genetic parameters for a series of definitions of enteric methane, carbon dioxide, and dry matter intake (DMI). Estimated breeding values (EBVs) were generated for nine alternative definitions of enteric methane and EBVs were validated against phenotypic performance (adjusted for …

Biosecurity Council Of Western Australia Annual Report 2022/2023, Biosecurity Council Of Western Australia

Biosecurity published reports

During 2022/23, the Council continued to monitor biosecurity related developments at national and state levels and proactively engaged with industry, community, and government on biosecurity matters.

The statutory review of the BAM Act also provided opportunities for Council’s previous reports and recommendations to be used as a solid information source for the responsible reviewing agency and its consultants.