Digital Commons Network^™

Applications Of The Critical Power Model To Dynamic Constant External Resistance Exercise: A Brief Review Of The Critical Load Test, Haley C. Bergstrom, Taylor K. Dinyer, Pasquale J. Succi, Caleb C. Voskuil, Terry J. Housh

Department of Nutrition and Health Sciences: Faculty Publications

The study and application of the critical power (CP) concept has spanned many decades. The CP test provides estimates of two distinct parameters, CP and W0 , that describe aerobic and anaerobic metabolic capacities, respectively. Various mathematical models have been used to estimate the CP and W0 parameters across exercise modalities. Recently, the CP model has been applied to dynamic constant external resistance (DCER) exercises. The same hyperbolic relationship that has been established across various continuous, whole-body, dynamic movements has also been demonstrated for upper-, lower-, and whole-body DCER exercises. The asymptote of the load versus repetition relationship is defined …

Buy Fresh, Buy Local: Nebraska Working Together For Local Food, Margaret Milligan

Cornhusker Economics

Direct market farms in Nebraska are made up of people passionate about raising good food for their fellow Nebraskans. They grow vegetables, fruits, meat, grains, and value-added products to sell directly to consumers in their communities.

During the pandemic, these small farms have experienced restaurant sales vanishing, farmers’ market attendance de-creasing, and slots filling up at the small meat processors where they take their livestock. At the same time, there has been a renewed interest from consumers seeking reliable, transparent food produced close to home. It’s been a volatile year, and it has required quick pivoting, group coordination and action …

Production Of Tocotrienols In Seeds Of Cotton (Gossypium Hirsutum L.) Enhances Oxidative Stability And Offers Nutraceutical Potential, Shanmukh S. Salimath, Trevor B. Romsdahl, Anji Reddy Konda, Wei Zhang, Edgar B. Cahoon, Michael K. Dowd, Thomas C. Wedegaertner, Kater D. Hake, Kent D. Chapman

Center for Plant Science Innovation: Faculty Publications

Upland cotton (Gossypium hirsutum L.) is an economically important multi-purpose crop cultivated globally for fibre, seed oil and protein. Cottonseed oil also is naturally rich in vitamin E components (collectively known as tocochromanols), with a- and c-tocopherols comprising nearly all of the vitamin E components. By contrast, cottonseeds have little or no tocotrienols, tocochromanols with a wide range of health benefits. Here, we generated transgenic cotton lines expressing the barley (Hordeum vulgare) homogentisate geranylgeranyl transferase coding sequence under the control of the Brassica napus seed-specific promoter, napin. Transgenic cottonseeds had ~twofold to threefold increases in the accumulation of total vitamin …

Utilizing An Electronic Feeder To Measure Individual Mineral Intake, Feeding Behavior, And Growth Performance Of Cow–Calf Pairs Grazing Native Range, Kacie L. Mccarthy, Michael Undi, Stephanie Becker, Carl R. Dahlen

Department of Animal Science: Faculty Publications

Crossbred Angus cow–calf pairs (n = 28 pairs) at the Central Grasslands Research Extension Center (Streeter, North Dakota) were used to evaluate an electronic feeder to monitor individual mineral intake and feeding behavior and their relationship with growth performance and liver mineral concentrations. Cows and calves were fitted with radio frequency identification ear tags that allowed access to an electronic feeder (SmartFeed system; C-Lock Inc., Rapid City, South Dakota) and were provided ad libitum minerals (Purina Wind and Rain Storm, Land O’Lakes, Inc., Arden Hills, MN). Mineral intake, number of visits, and duration at the feeder were recorded over …

Dispersal And Land Cover Contribute To Pseudorabies Virus Exposure In Invasive Wild Pigs, Felipe A. Hernandez, Amanda N. Carr, Michael P. Milleson, Hunter R. Merrill, Michael L. Avery, Brandon M. Parker, Cortney L. Pylant, James D. Austin, Samantha M. Wisely

United States Department of Agriculture Wildlife Services: Staff Publications

We investigated the landscape epidemiology of a globally distributed mammal, the wild pig (Sus scrofa), in Florida (U.S.), where it is considered an invasive species and reservoir to pathogens that impact the health of people, domestic animals, and wildlife. Specifically, we tested the hypothesis that two commonly cited factors in disease transmission, connectivity among populations and abundant resources, would increase the likelihood of exposure to both pseudorabies virus (PrV) and Brucella spp. (bacterial agent of brucellosis) in wild pigs across the Kissimmee Valley of Florida. Using DNA from 348 wild pigs and sera from 320 individuals at 24 sites, we …

Why Do People Follow Popular, Or Fad, Diets?, Christopher R. Gustafson

Cornhusker Economics

The tradition of goal setting at the start of a year—New Year’s resolutions—is deeply engrained in American society: estimates suggest that between 40 and 50% of adults set New Year’s Resolutions. Many of the most common goals relate to weight management—initiating exercise programs, dieting, or both—which is perhaps unsurprising since over 70% of American adults are overweight or obese.

Molecular-Assisted Breeding For Soybean With High Oleic/Low Linolenic Acid And Elevated Vitamin E In The Seed Oil, Katherine Hagely, Anji Reddy Konda, Jeong-Hwa Kim, Edgar B. Cahoon, Kristin Bilyeu

Center for Plant Science Innovation: Faculty Publications

The uses of vegetable oils are determined by functional properties arising from their chemical composition. Soybean oil was previously used in margarines and baked foods after partial hydrogenation to achieve heat and oxidative stability. This process, however, generates trans fats that are now excluded from food use because of cardiovascular health risks. Also present in soybean oil are the anti-oxidant tocopherols, with α- tocopherol (vitamin E) typically present as a minor component compared to γ-tocopherol. Genetic improvement of the fatty acid profile and tocopherol profile is an attractive solution to increase the functional and health qualities of soybean oil. The …

An Environmental Assessment Of Cattle Manure And Urea Fertilizer Treatments For Corn Production In The Northern Great Plains, C. Alan Rotz, Senorpe Asem-Hiablie, Erin Cortus, Mindy J. Spiehs, Shafiqur Rahman, Anne Stoner

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Nitrogen (N), phosphorus (P), and carbon (C) emissions from livestock systems have become important regional, national, and international concerns. Our objective was to use process-level simulation to explore differences among manure and inorganic fertilizer treatments in a corn production system used to feed finishing cattle in the Northern Great Plains region of the U.S. Our analysis included model assessment, simulation to compare treatments under recent climate, and comparisons using projected midcentury climate. The Integrated Farm System Model was evaluated in representing the performance and nutrient losses of corn production using cattle manure without bedding, manure with bedding, urea, and no …

Comparison Of Performance Of F1 Romanov Crossbred Ewes With Wool And Hair Breeds During Spring Lambing Under Intensive And Extensive Production Systems, Brad A. Freking, Thomas W. Murphy

Roman L. Hruska U.S. Meat Animal Research Center: Reports

The objective was to evaluate wool (Dorset and Rambouillet) and hair (Dorper, Katahdin, and White Dorper) breeds for their ability to complement Romanov germplasm in two distinct production systems by estimating direct sire and grandsire effects on lamb growth, survival, and ewe productivity traits. Rams of the five breeds (n = 75) were mated to Romanov ewes (n = 459) over a 3-yr period to produce five types of crossbred lambs (n = 2,739). Sire breed (P > 0.06) did not impact body weight or survival traits of the first-generation crossbred (F1) lambs. The productivity of retained crossbred ewes (n = …

Is Hay For The Birds? Investigating Landowner Willingness To Time Hay Harvests For Grassland Bird Conservation, Matthew P. Gruntorad, Katherine A. Graham, Nico Arcilla, Christopher J. Chizinski

School of Natural Resources: Faculty Publications

Birds in agricultural environments have exhibited steep global population declines in recent decades, and effective conservation strategies targeting their populations are urgently needed. In grasslands used for hay production, breeding birds’ nest success improves substantially if hay harvests are delayed until after mid-July. However, few studies have investigated private hay producers’ willingness to alter their harvesting practices to support bird conservation, a critical factor for bird conservation where most land is privately owned, such as in the North American Great Plains. We surveyed Nebraska hay producers to examine whether livestock production, wildlife knowledge, and hunting activity affects their willingness to …

Whooping Crane (Grus Americana) Family Consumes A Diversity Of Aquatic Vertebrates During Fall Migration Stopover At The Platte River, Nebraska, Andrew J. Caven, Keith D. Koupal, David M. Baasch, Emma M. Brinley Buckley, Jenna M. Malzahn, Michael David Forsberg, Mariah Lundgren

School of Natural Resources: Faculty Publications

The Aransas-Wood Buffalo population of Whooping Cranes (Grus americana) migrates approximately 4000 km through the central Great Plains biannually, between their breeding and wintering grounds. Whooping Cranes depend on stopover sites to provide secure resting locations and the caloric resources necessary to complete their migration, such as the USFWS-designated critical habitat area in the Central Platte River Valley (CPRV) of Nebraska. This area includes braided river habitat characterized by low-elevation and submerged sandbars, which provide important roosting and foraging opportunities for migrating Whooping Cranes. We used long-range photography, videography, and behavioral scan sampling to document forage items consumed by Whooping …

Minimizing Trade-Offs For Sustainable Irrigation, S. Mcdermid, R. Mahmood, M. J. Hayes, J. Bell, Z. Lieberman

School of Natural Resources: Faculty Publications

No abstract provided.

Feeding Ecology Of Walia Ibex (Capra Walie) In Simien Mountains National Park, Ethiopia, D. Ejigu, A. Bekele, L. A. Powell

School of Natural Resources: Faculty Publications

No abstract provided.

Moving Beyond ‘More Crop Per Drop’: Insights From Two Decades Of Research On Agricultural Water Productivity, Meredith Giordano, Susanne M. Scheierling, David O. Tréguer, Hugh Turral, Peter G. Mccornick

Daugherty Water for Food Global Institute: Faculty Publications

Concern over increasing water scarcity has led to the introduction of the concept of agricultural water productivity and an emphasis on interventions to achieve ‘more crop per drop’. Yet, a strong debate continues on how the concept is to be defined and used. Drawing largely from the irrigation literature, the origins of the concept and its methodological developments are reviewed, and its use in applied work over two decades is discussed. Based on this analysis of conceptual and applied research, key insights into the concept’s contributions and limitations are presented, as well as opportunities for further refinements.

Healthy Nebraska: Advancing Human Health And Developing Healthy Communities, Laura E. Young, Mary Garbacz, Kelli Mashino, Michael J. Boehm, Amanda Ramer-Tait, Jessica Rudolph, Heather Rasmussen, Abigail Durheim, Kaustav Majumder, Taryn Sehnert, Dipti Dev, Krista Ott, Martha Rhoades, Morgan Leefers, Richard Wilson, Mya Donelson, James Schnable, Brent Lemmer, Virginia Chaidez, Rebecca Reagan, Helen Fagan, Bailee Tucker, Jean Ann Fischer, Molly Suhr

Strategic Discussions for Nebraska

Healthy Nebraska: Advancing Human Health and Developing Healthy Communities

Every day, the Institute of Agriculture and Natural Resources (IANR) is putting together a wickedly complex puzzle, in which each faculty member, researcher, Extension educator, student, staff member, partner and stakeholder is a vitally important piece. As the pieces come together, we see a picture of the world in which IANR is making a meaningful difference in sustainable food, fuel, feed, and fiber production.

The Use Of Family Engagement Principles By Childcare Providers From Various Childcare Settings: A Qualitative Study, John P. Rech, Kailey Snyder, Maggie Rasmussen, Dipti Dev, Danae Dinkel

Department of Child, Youth, and Family Studies: Faculty Publications

Family engagement in childcare is important to ensure the optimal growth, development, and safety of children. Previous research has explored family engagement practices, but limited research is available on the application of theory to explain the uptake of family engagement principles. The purpose of this study was to explore the use and perceptions of the National Association of the Education for Young Children’s six principles of effective family engagement among childcare providers from various childcare settings following the Innovation-Decision Process of the Diffusion of Innovation Theory. A semi-structured interview with a card-sorting task was used to explore providers’ knowledge, adoption, …

Root Nrt, Nir, Amt, Gs, Gogat And Gdh Expression Levels Reveal No Andaba Mediated Drought Tolerance In Brassica Juncea L., Seema Sahay, Luis Robledo-Arratia, Katarzyna Glowacka, Meetu Gupta

Department of Biochemistry: Faculty Publications

Little is known about the interactive effects of exogenous nitric oxide (NO) and abscisic acid (ABA) on nitrogen (N) metabolism and related changes at molecular and biochemical levels under drought stress. The present study highlights the independent and combined effect of NO and ABA (grouped as “nitrate agonists”) on expression profiles of representative key genes known to be involved in N-uptake and assimilation, together with proline metabolism, N–NO metabolism enzyme’s activity and nutrient content in polyethylene glycol (PEG) treated roots of Indian mustard (B. juncea cv. Varuna). Here we report that PEG mediated drought stress negatively inhibited growth performance, as …

Addressing Work-Related Traumatic Stress Nebraska - Resiliency Reminders Guidebook, Quality Improvement Center For Workforce Development

Other QIC-WD Products

This guide is intended for child welfare professionals implementing a workforce effort to address secondary traumatic stress (STS). It was developed as part of CFS Strong, a joint effort of the Quality Improvement Center for Workforce Development (QIC-WD) and the Nebraska Department of Human Services’ Department of Children and Family Services (CFS), to address the cumulative effects of STS that is part of the day-to-day work of the child welfare workforce. CFS Strong included: (1) an adaptation of Resilience Alliance (RA) to teach skills and strategies to manage STS and build team cohesion, (2) Restoring Resiliency Response (RRR) to allow …

Genetic Changes In Beef Cow Traits Following Selection For Calving Ease, Gary L. Bennett, Richard M. Thallman, Warren M. Snelling, John W. Keele, Harvey C. Freetly, Larry A. Kuehn

Roman L. Hruska U.S. Meat Animal Research Center: Reports

One approach to reducing calving difficulty is to select heifers with higher breeding value for calving ease. Calving ease is often associated with lower birth weight and that may result in other possible effects on lifetime productivity. Females from experimental select and control calving ease lines within each of the seven populations were compared. Random samples of 720 heifers from lines selected for better calving ease breeding values and 190 heifers from control lines selected for average birth weights were followed through four parities. Select and control lines within the same population were selected to achieve similar yearling weight breeding …

Comparison Of Performance Of F1 Romanov Crossbred Ewes With Wool And Hair Breeds During Fall Lambing And Body Weight And Longevity Through Six Production Years, Thomas W. Murphy, Brad A. Freking

Roman L. Hruska U.S. Meat Animal Research Center: Reports

The objective of this study was to evaluate wool (Dorset and Rambouillet) and hair (Dorper, Katahdin, and White Dorper) breeds for their ability to complement Romanov germplasm in an annual fall lambing system by estimating direct maternal grandsire and sire breed effects on economically important lamb and ewe traits. After 3 yr of evaluation under spring lambing, ewes of the five F1 types were transitioned to spring mating, exposed to composite terminal sires, and evaluated under a barn lambing system at 4, 5, and 6 yr of age. A total of 527 first generation crossbred (F1) ewes produced 1,151 litters …

Research At Nebraska, 2020-2021 Report, University Of Nebraska-Lincoln

Office of Research and Economic Development: Publications

This publication is a snapshot of the fiscal year’s activities. To read more stories about research and creativity at Nebraska, visit the online edition at https://research.unl.edu/annualreport/2021. Additional multimedia are available for many stories.

Nebraska Risk And Protective Factor Student Survey Results For 2021. Profile Report: State Of Nebraska, Bureau Of Sociological Research

Nebraska Student Health and Risk Prevention Surveillance System (SHARP)

No abstract provided.

Nebline, January 2021

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

2020 Extension Highlight Highlights Responding as Local Needs Changed

Helping People Solve Real-World Problems

20,311 Youth Engaged in 4-H Programs

Make Your New Year’s Resolutions Stick

Recipe of the Month

Crop Production Clinics, Jan. 7, 14, and 21

Pesticide Applicator Trainings

Extension’s 2021 Master Gardener Trainings, Two Sites Available

Upcoming Green Industry Conferences

Garden Guide Things to do This Month

HEART OF 4-H VOLUNTEER AWARD: Emalea Dean

PASE Results

4-H Thanks Sponsors

4-H Announcements for 4-H’ers and Volunteers

4-H Thanks Volunteers

EXTENSION CALENDAR

EXTENSION NEWS

How To Sell A Dinosaur Club Curriculum, Ronit Gandhi, Lilly Zhou

Honors Program: Expanded Learning Clubs

After school club that reads "How to Sell a Dinosaur" that integrates creativity and abstract thinking into an advertising-focused experience.

A Race Around The World, Lilly Zhou

Honors Program: Expanded Learning Clubs

Afterschool club that learns about different cultures, foods, holidays, and landmarks from countries around the world through interactive presentations. Hands-on activities help the students focus on teamwork, creativity, and active recall.

Research And Creative Activity, July 1, 2020-June 30, 2021: Major Sponsored Programs And Faculty Accomplishments In Research And Creative Activity, University Of Nebraska-Lincoln, Office Of Research And Economic Development, University Of Nebraska-Lincoln

Office of Research and Economic Development: Publications

Foreword by Bob Wilhelm, Vice Chancellor for Research and Economic Development, University of Nebraska-Lincoln:

This booklet highlights successes in research, scholarship and creative activity by University of Nebraska–Lincoln faculty during the fiscal year running July 1, 2020, to June 30, 2021.

It lists investigators, project titles and funding sources on major grants and sponsored awards received during the year; fellowships and other recognitions and honors bestowed on our faculty; books and chapters published by faculty; performances, exhibitions and other examples of creative activity; patents and licensing agreements issued; National Science Foundation I-CORPS teams; and peer-reviewed journal articles and conference presentations. …

Examining Differences In Achievement Of Physical Activity Best Practices Between Urban And Rural Child Care Facilities By Age, Danae Dinkel, John P. Rech, Yage Guo, Matthew R. Bice, Emily Hulse, Donnia Behrends, Christina Burger, Dipti Dev

Department of Child, Youth, and Family Studies: Faculty Publications

Go Nutrition and Physical activity Self Assessment in Child Care (NAP SACC) is an evidence based intervention developed to positively impact childhood obesity in early childhood education (ECE) facilities. One focus of Go NAP SACC is the development of physical activity best practices. However, little research has examined differences in achievement of best practices based on age of child and geographic location. The purpose of this study was to examine differences in the achievement of physical activity best practices between urban and rural childcare facilities by age-specific recommendations (infants, toddlers, and preschoolers) and in the overall physical activity environment. Urban …

Review: Perspective On High-Performing Dairy Cows And Herds, J. H. Britt, R. A. Cushman, C. D. Dechow, H. Dobson, P. Humblot, M. F. Hutjens, G. A. Jones, F. M. Mitloehner, P. L. Ruegg, I. M. Sheldon, J. S. Stevenson

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Milk and dairy products provide highly sustainable concentrations of essential amino acids and other required nutrients for humans; however, amount of milk currently produced per dairy cow globally is inadequate to meet future needs. Higher performing dairy cows and herds produce more milk with less environmental impact per kg than lower performing cows and herds. In 2018, 15.4% of the world's dairy cows produced 45.4% of the world's dairy cow milk, reflecting the global contribution of high-performing cows and herds. In high-performing herds, genomic evaluations are utilized for multiple trait selection, welfare is monitored by remote sensing, rations are formulated …

Co2 Biocapture By Scenedesmus Sp. Grown In Industrial Wastewater, Itzel Y. López-Pacheco, Eduardo Israel Castillo-Vacas, Lizbeth Castañeda-Hernández, Angie Gradiz-Menjivar, Laura Isabel Rodas-Zuluaga, Carlos Castillo-Zacarías, Juan Eduardo Sosa-Hernández, Damià Barceló, Hafiz M.N. Iqbal, Roberto Parra-Saldívar

Panhandle Research and Extension Center

Greenhouse gases (GHG) emissions are widely related to climate change, triggering several environmental problems of global concern and producing environmental, social, and economic negative impacts. Therefore, global research seeks to mitigate greenhouse gas emissions. On the other hand, the use of wastes under a circular economy scheme generates subproducts from the range of high to medium-value, representing away to help sustainable development. Therefore, the use of wastewater as a culture medium to grow microalgae strains that biocapture environmental CO₂, is a proposal with high potential to reduce the GHG presence in the environment. In this work, Scenedesmus sp. …

Annual Report: Nebraska Extension In Lancaster County, January 1, 2021 Through December 31, 2021

Lancaster County, Nebraska Extension: Reports

Lancaster County Extension information from 2021. Contents include:

1) About Extension - Lancaster County Extension mission statement, overview and impact reports;

2) Staff and Programs - staff directory and Extension Educator annual program summaries;

3) Financials - summaries of 2020-2021 budget expenditures and fiscal year 2021-2022 budget; and

4) Media - website and social media information, samples of our Nebline newsletter and local newspaper articles.