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Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #59 2020

Gamma Sigma Delta, Nebraska Chapter: Newsletters

In this issue:

Important dates

President's message, Paul Hay

2019 Nebraska Chapter awards: The Honor Society of Agriculture, Gamma Sigma Delta

Award of Merit recipients: Archie Clutter, Dave Vetter, Lena Luck, Suat Irmak, Angela Pannier, Sajjan Grover (Joe Louis), (Ethann Barnes, Jordan Reinders), Jayden Garrett (Daniel Gertner, Alexander Kemnitz, Trevin Ball, Kristi Patterson, Robert Gabel, Abigail Haworth), Abigail Haworth, Sydney Kimnach (Payton Flower, Kayla Johnson, Tori Pedersen).

New members inducted into the Nebraska Chapter

Gamma Sigma Delta committees 2020 (Executive: President: Paul Hay, President-Elect: TBD, Secretary/Treasurer: Dennis Brink, Membership Coordinator: Bob Wright, Historian Dana W. R. Boden, Past-President: Gary Brewer) …

Bodyweight Management And Relationship To Health In The Horse (Equus Caballus), Beverly Ann Gartland

Masters Theses & Specialist Projects

The health of the horse is of interest to animal caretakers. Horses that fall within a prescribed range of bodyweight and body condition may be healthier than horses that are lower or higher. Two studies were conducted related to body weight and condition of the horse. The first study examined if restricting the amount of space available for horses to graze could reduce bodyweight without having a strong impact on time budgets of the horse or removing horses from pasture. This method was determined to be effective in preventing weight gain, although there was an increase in grazing behavior displayed …

Nebline, April 2020

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Preparing Water for Use in an Emergency

Extension Postponements, Cancellations & Changes

Census Reminder

Create a Culture of Wellness with Nebraska Extension

RECIPE OF THE MONTH

Warm Spring and Weed Growth

Creating Capable Children

Empathy Over Sympathy

Those Pesky Fruit Flies

Preventing Conflicts With Tree Squirrels

Six Annual Flowers for Sunny Locations

Hiring a Lawn & Landscape Professional

Garden Guide: Things to Do This Month

HEART OF 4-H

At 4-H Lock-In, Teen Council 4-H’ers “Inspire Kids to Do”

New in 4-H at Super Fair

4-H/FFA Livestock Identification Help Nights, June 2 & 9

4-H Senior Ellie Babcock’s Third Year Showcasing …

A Global Perspective On Sustainable Intensification Research, Kenneth Cassman, Patricio Grassini

Department of Agronomy and Horticulture: Faculty Publications

Despite general agreement that meeting food demand without further loss of natural ecosystems requires sustainable intensification, there is little dialogue about the research agenda needed to achieve it. To that end, we evaluate current trajectories towards sustainable intensification, review published research on the topic, identify missing links, and propose a prioritization framework to fill gaps. Although progress towards sustainable intensification is behind schedule, we are optimistic that current trends can get back on course assuming a well-prioritized and adequately funded research portfolio and appropriate policies and institutions to support it.

Shifting Landscapes: The Effects Of Male Out-Migration On Food Security And Food Sovereignty In Rural Nepal, Emma Brown

Independent Study Project (ISP) Collection

Rural Nepal is experiencing rapid demographic changes, significantly impacting the socioeconomic and agricultural landscape of these areas. Growing percentages of the male population are migrating out of the country in search of better livelihood opportunities. This is largely a result of poor development processes and governmental policies that have failed to create adequate domestic livelihood opportunities and incentives to work in agriculture, as well as changing ideas on what it means to be successful, spurred by globalization. Further, dominant neoliberal ideology and the commercialization of agriculture is decreasing the profitability of agriculture, making migration a lucrative option. Due to out-migration, …

Louisiana Agriculture Spring, 2020, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

Presence Of Glyphosate In First Order Streams Associated With Rainfall Events, Julie Platz

Undergraduate Honors Thesis Projects

Glyphosate is widely used in the United States and has recently been described as both mobile and persistent in soils and bodies of water. There is little research however, on the variability of glyphosate concentration in runoff based on different land use types. For this study an evaluation of samples from different land uses are used to assess glyphosate concentrations in first order streams during a runoff event. The intent was to compare three sites with a. known commercial applications, b. known lack of applications (organic), and c. assumed limited application of glyphosate. There was no significant difference in glyphosate …

Contemporary Challenges Facing Small, Family Farms In America: The Grant Family And Their Maraschino Cherry Farm, Haley Allaben 20

Honor Scholar Theses

No abstract provided.

Investigating Microbiomes And Developing Direct-Fed Microbials To Improve Cattle Health, Alison C. Bartenslager

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

Over the last decade, global beef production has increased to meet the protein needs of the growing population. As a result, the intensification of beef cattle production systems has resulted in broad spectrum prophylactic use of antibiotics and growth promoting agents. With increased concern around antimicrobial resistance (AMR) and emergence of novel pathogenic strains of bacteria, it is critical to understand disease progression and associated changes in the microbiome to develop novel therapeutic alternatives to reduce antibiotic use and control disease. One such approach that is currently being investigated is the development of novel direct-fed microbial strains to outcompete pathogens …

Heat Stress-Induced Deficits In Growth, Metabolic Efficiency, And Cardiovascular Function Coincided With Chronic Systemic Inflammation And Hypercatecholaminemia In Ractopamine-Supplemented Feedlot Lambs: Atypical Cyclicity At Puberty In Beef Cows Is Associated With Early Deficits In Muscling, Metabolic Indicators, And Myoblast Function In Offspring But Does Not Impact Feedlot Performance, Rebecca M. Swanson

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

Our 1^st study evaluated the effects of b-adrenergic agonist (ractopamine) supplementation on growth, health, and wellbeing in heat-stressed feedlot wethers. Chronic heat stress impaired growth, metabolism, and wellbeing even when the impact of reduced feed intake was eliminated by pair-feeding. We observed systemic inflammation and hypercatecholaminemia that were likely mediators of these deficits. Moreover, ractopamine did not diminish any wellbeing indicators and improved muscle growth without worsening the effects of heat stress.

Our 2^nd study assessed the effects of pubertal cyclicity (weaning to 1^st breeding) in cows on myoblast-mediated muscle growth, metabolism, and growth efficiency of their …

Alimentando A México: Los Movimientos Indígenas Y Agrícolas Contra Las Políticas Neoliberales, Sofia Buchler

Independent Study Project (ISP) Collection

Para analizar la complejidad de la agricultura en México en este momento, es necesario analizar las políticas neoliberales de México. El Tratado de Libre Comercio de América del Norte (TLCAN) marca un punto de inflexión para la privatización de las tierras agrícolas y los cambios de la dieta mexicana. Las políticas de los últimos cuarenta años han destruido la dieta de la milpa en México y la tradición del policultivo. Los cambios en la agricultura han destruido el suelo, y forzado a los pequeños agricultores a abandonar sus tierras y buscar trabajos diferentes. Hay una gran historia de resistencia indígena …

Comparison Of Comprehensive Health Score In North American Housed Giraffe And Free-Ranging Giraffe From South Africa, Haley Beer

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

Stress is evident in many animal species and has been correlated to disease prevalence. During stressful events, allostasis is initiated by physiologic systems to maintain or reestablish homeostasis to protect an organism’s viability. Over time, the acclimation to frequent stress causes systematic dysregulation, leading to the phenomena of increased allostatic load. Allostatic load has been assessed in animal species via serum through selection of representative, multi-system biomarker indices. Perception and number of stress events may impact dysregulation severity, yielding allostatic load as a predictive tool. However, the allostatic load methodology poses application limitations to individuals without historical data and those …

Evaluation Of Protein Sources And Holstein Finishing Systems For Organic Beef Production And A Comparison Of Single And Dual Implant Strategies In Finishing Heifers, Elizabeth A. Schumacher

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

Two in situ experiments were conducted to compare the rumen undegradable protein content (RUP) and RUP digestibility of conventional and organic field peas, fish meal, dehydrated alfalfa, and soybean meal. Significant differences were detected between feed samples in both studies for all variables measured. Variation existed between sample types but the data did not suggest that organic and conventional feeds are different when processed with the same methods. A performance experiment was conducted utilizing individually fed Holstein steers comparing the effect of RUP source in a simulated organic production system. Dietary treatments were: no supplemental protein (NONE), field peas (FP), …

Nutritional Evaluation Of Maize Plant Fodder Grown In Spring And Autumn Season In Punjab, Pakistan, Nafeesa Qudsia Hanif, Nadeem Akhtar

Journal of Bioresource Management

Present study was planned to assess the nutritional evaluation of maize plant grown in spring and autumn seasons. For this purpose, a total of 277 (n=130 in spring and n=147 in autumn season) samples were collected from high maize-growing localities i.e. Kasur, Pakpattan, Okara, Burewala, Sahiwal, Lahore and Melsi. These samples were analyzed for different parameters such as dry matter (DM) and Crude protein (CP) etc. It was noticed that during spring season the values of dry matter (DM), neutral detergent fiber (NDF), acid detergent fiber (ADF) and starch were significantly higher than autumn season values. On the other hand, …

Determination Of 7 Kinds Of Polychlorinated Biphenyls In Water By Magnetic Solid Phase Extraction/Thermal Desorption-Gas Chromatography-Tandem Mass Spectrometry, Fu Shan-Liang, Zhang Fan, Lu Jing, Chen Lian, Cheng Jing, Zhu Shao-Hua

Food and Machinery

Magnetic solid phase extraction(MSPE) based on Fe3O4-grafted graphene oxide (Fe₃O₄@GO) was combined with thermal desorption-gas chromatography-tandem mass spectrom-etry(TD-GC-MS/MS) to develop an organic solvent free quantitative analysis method for the determination of 7 kinds of indicative polychlorinated biphenyls(PCBs) in water. The factors affecting the extraction efficiency, induding amount of Fe₃O₄@GO, extraction time and pH value of water sample, were investigated. Under the control of the optimized conditions, an excellent linearity was observed in the range of 2~100 ng/L for the 7 kinds of PCBs, with the correlation coefficients(r)＞0.98. The detection limits (S/N=3) and …

Design And Multi-Body Dynamics Analysis Of Stirring Mechanism Of Cooking Robot, Huang Liang-Hai, Wang Xiao-Long, Li Ya-Ming

Food and Machinery

The author firstly designs three kinds of stirring mechanism of a certain type of cooking robot, which are called uniaxial stirring mechanism, forward and backward stirring mechanism,planetary stirring mechanism, and then carries out multi-body dynamic simulation analysis for each kind of design. The spherical particle flow is used to simulate the dish material, and the simulation animation video and the motion trajectory of food particles are obtained. The results show that the planetary stirring mechanism can stir the material most thoroughly.

Effects Of A Formula Containing Vitamin B On Ameliorates Anxious/Depression-Like Behaviors In An C57bl/6 Mice Model, Zhu Xi-Ping, Li Wen-Zhi, Tao Qian, He Wen-Jiang, Cui Chun

Food and Machinery

Investigated effects of vitamin B complex TRP peptides and SOD on the anti-oxidative activity in brain tissue, serum inflammatory factor levels and reverse anxious/depression-like behaviors. Vitamin B complex TRP peptide and SOD (V_B3︰ V_B6︰TRP peptide︰SOD = 2︰10︰3︰4; VBPS) high, medium and low gavage doses were 260, 195, 130 mg/(kg·d), respectively. Studies showed that VBPS could reverse the anxious/depression-like behaviors and the slow body weight gain, with VBPS at a high dose being more effective. VBPS showed to control the effects of serum inflammatory cytokines (TNF-α, IL-6, IL-1β and IFN-γ), decrease malondialdehyde (MDA) levels and increase superoxide …

Research On Ultrasonic-Assisted Extraction Process And Stability Of Polysaccharides From Lilium Davidii Var Bulb, Li Gang-Gang, Sun Jing, Fu Heng-Yi, Xiao Bi-Liang

Food and Machinery

An orthogonal test was utilized to optimize the ultrasonic-assisted extraction process of polysaccharides from Lilium davidii var waste bulb, and the stability of the polysaccharides was studied. The results showed that the optimum extraction conditions for ultrasonic-assisted extraction process were as followed: the ratio solid to liquid of 1:20 (g/mL), ultrasonic time of 60 min, ultrasonic power 250 W, and ultrasonic temperature 60 ℃. Under the conditions, the extracting rate of polysaccharides from Lilium davidii var was 18.44%. The anti-oxidization stability of polysaccharide extracts was poor, whicht was easy to be oxidized by H₂O₂, but has …

Uncovering The Relationship Between Dietary Fatty Acids And Fiber Digestion In The Rumen, Fernanda Batistel

Funded Research Records

No abstract provided.

Echomri For Body Composition Measurement In Animal Model Studies Of Basal Diet, Functional Foods And Gut Health, Abby D. Benninghoff

Funded Research Records

No abstract provided.

Membrane Lipid Extraction Methods From Sorghum Bicolor, Max Regester

Honors Program: Senior Projects (Public)

Plants are the basis of the world as we know it. As sessile beings, there are often subject to many environment stressors like drought, extreme temperatures, etc. One way of analyzing how plants respond to these stressors is by monitoring changes in their lipid compositions. Having a better understanding of how plants respond to different stressors can have very important implications when it comes to cultivating crops. When testing lipid composition, it is important to measure levels as they were in the living tissue. The problem is, enzymes known as lipases are active during extraction and can greatly change the …

German Immigration And Its Ties To Landscape Change In Nebraska, Lindsey Labrie

Honors Program: Senior Projects (Public)

This thesis uses a multidimensional approach to frame the different waves of German immigration within the context of land use change in Nebraska. By recounting the historical challenges and struggles Germans faced in their homelands, this thesis provides similarities between historical immigration patterns throughout the state. Observing the timing of these movements of people paints a clearer picture of how these immigrants might have helped change the farming and cultural landscapes of Nebraska. Knowing and recognizing historical immigration in Nebraska cultivates a deeper appreciation for the current relations between immigrants and Nebraska’s physical landscape.

Familiarity And Use Of Veterinary Services By Us Resident Dog And Cat Owners, Courtney Bir, Mario Ortez, Nicole Olynk Widmar, Chris Wolf, Charlotte Hansen, Frederic B. Ouedraogo

Department of Agricultural Economics Faculty Publications

Pet ownership, veterinary use, and beliefs regarding veterinary care were elicited through the use of a nationally representative survey of 997 U.S. residents. Fifty-one percent of respondents have or had a dog in the past five years and 37% have or had a cat in the past five years. Over ninety percent of cat and dog owners had visited a veterinarian at any time, but only about 40% visited a veterinarian annually. With the rise of options in veterinary medicine, including low-cost options for vaccines and spay/neuter, further study and analysis of pet-owners use of veterinary care is warranted. Fifty-four …

Perceptions Of Prominent Animal Welfare And Veterinary Care Organizations In The United States, Mario Ortez, Courtney Bir, Nicole Olynk Widmar, Chris Wolf

Department of Agricultural Economics Faculty Publications

U.S. residents’ perceptions of the impact of prominent animal welfare and veterinary care organizations on pet animal well-being and health care may not be linked to the organization’s stated mission and effectiveness in advancing it, but to the level of recognition people have for the groups. An online survey of 1000 U.S. residents was used to understand the perceived impact of organizations with self-stated dedication to pet animal well-being. Using a Likert-scale, respondents ranked 13 prominent organizations as having a low to high impact on pet animal well-being and health care. The American Society for the Prevention of Cruelty to …

Nebraska Farm Real Estate Values Improve Despite Uncertainty In 2020, Jim Jansen, Jeffrey Stokes

Cornhusker Economics

The market value of agricultural land in Nebraska increased by three percent over the prior year to an average of $2,730 per acre according to the 2020 Nebraska Farm Real Estate Market Survey (Figure 1 and Table 1). This improvement provides the first increase in the market value of agricultural land in Nebraska since peaking in 2014 at $3,315 per acre followed by a 20 per- cent decline extending to 2019.

The University of Nebraska-Lincoln, Department of Agricultural Economics annually surveys land industry professionals across Nebraska including appraisers, farm and ranch managers, and agricultural bankers. Results from the survey are …

Resistance And The Black Freedom Movement: Reflections On White’S Freedom Farmers, Garrett Graddy-Lovelace, Priscilla Mccutcheon, Ashanté Reese, Angela Babb, Jonathan C. Hall, Eric Sarmiento, Bradley Wilson

Geography Faculty Publications

First paragraphs:

Landmark: 1. An object or feature of a landscape . . . that is easily seen and recognized from a distance, especially one that enables someone to establish their location. Synonyms: mark, indicator, guiding light, signal, beacon, lodestar. 2. An event or discovery marking an important stage or turning point in something. Synonyms: milestone, watershed . . . major achievement. (“Landmark,” n.d., para. 1 & 4)

Dr. Monica White’s Freedom Farmers: Agricultural Resistance and the Black Freedom Movement stands literally as a landmark, ushering in a new era of community-based scholarship with and for agrarian justice. From here …

Teaching Natural And Artificial Selection In Production Agriculture, Madhav P. Nepal, Clayton W. Scott

iLEARN Teaching Resources

In this lesson, students will learn how natural selection and artificial selection impact both production agriculture and biological sciences. A natural selection is a mechanism that favors heritable traits that increase species survival and reproduction. Artificial selection is a selective breeding, where humans select for desirable traits in agricultural products.

Investigating Bat Activity In Various Agricultural Landscapes In Northeastern United States, Katherine Harms, Emmanuel Omondi, Atanu Mukherjee

Agricultural and Environmental Sciences Faculty Research

Bats are estimated to provide between $3.7 and $53 billion annually in ecosystem services in the U.S.A. Determining how bats use land for foraging is important in planning agricultural landscapes to increase their presence and role in insect pest control. A research project was established in 2016 and 2017 to determine bat populations and activity differences between different land use management systems. Bat activity was monitored in 10 conventionally and organically managed systems in the presence of, and at a distance from the tree line. Two acoustic monitoring devices were used to record ultrasonic echolocation calls of bats. Organic systems …

Safety First Risk Preferences And Post-Harvest Grain Marketing A Context-Rich Lab Experiment, Stamatina Stamatina, Simanti Banerjee, Cory Walters

Cornhusker Economics

Improving our understanding of the influence of risk- preferences on decision making represents an important objective for understanding behavior, designing policy and decision making theory. A natural place this problem persists is in the marketing of grain (Kastens and Dhuyvetter, 1999). Grain marketing research has primarily focused on the use of different marketing techniques that result in lower price risk and, therefore, lower-income risk (Musser, Patrick, Eckman, 1996). However, the extent to which the theoretical findings from these studies are relevant to real-world applications is not clear (Brorsen and Irwin, 1996; Garcia and Leuthold, 2004). While reducing income risk is …

Valorization Of Carrot Processing Waste, Alexandra M. Duval

Master's Theses

Commercial carrot processors produce up to 175,000 tons of carrot waste annually. Carrot Mash (CM) is the term referring to the waste by-product of peeled baby carrot processing. Transportation of carrot processing waste is expensive due to its high- water content (approx. 83-95%). High in bioactive compounds (carotenoids) and dietary fibers, it is expected that its conversion into a value-added by-product is of interest to the carrot processing industry. Hemicellulose-rich plant materials have proven to be a source of oligosaccharides, which are known for their beneficial prebiotic activity. The objectives of this research were to: 1) determine the effect of …