Digital Commons Network^™

Grazing Animal Production Systems And Grazing Land Characteristics In A Semi-Arid Region Of Greece, I. Hadjigeorgiou, G. Economou, D. Lolis, N. Moustakas, G. Zervas

IGC Proceedings (1977-2023)

Rough grazing in Greece cover about 40% of the total land area, is publicly owned and managed extensively (Hadjigeorgiou et al., 2002). The Prefecture of Larisa is in the centre of Greece, and has 212,000 ha of rough grazing land, with a variable topography ranging from sea level up to 3,000 m a.s.l. This area is utilized by a total population of 135,000 LU (mainly sheep, goats and some suckler cows), which consumes annually an appreciable fraction of their total nutrient requirements from rough grazing.

Grass And Forage Plant Improvement In The Tropics And Sub-Tropics, Liana Jank, C. B. Do Valle, Rosangela M. S. Resende

IGC Proceedings (1977-2023)

1. The majority of tropical and subtropical forage grass genera and/or species have not yet been collected, or need further collection to be representative of their natural distribution.
2. New biotechnological techniques will only result in the release of superior forage cultivars if supported by strong breeding programs.
3. More funding and investment in the formation of strong public research teams in forage conservation and improvement are needed to guarantee the sustainability of tropical and subtropical pasture-based livestock systems in the future.
4. The creation of a permanent international working group on tropical and subtropical forages is essential to assist the International Plant Genetic …

Comparative Metabolite Profiling And Fingerprinting Of Mature And Immature Grains Of Different Species Using A Multiplex Approach Of Lc-Ms And Gc-Ms Coupled To Chemometrics, Doaa Bahaa Abdelhalim Saied

Theses and Dissertations

The objective of the current study was the assessment of heterogeneity amongst metabolites of 5 cereal and leguminous grains of different species, and cultivars i.e., Triticum aestivum L., Hordeum vulgare L., Vicia faba L. & Cicer arietinum L. at different maturity stages. Gas chromatography mass-spectrometry (GC-MS) post silylation technique was employed for nutrients profiling. A total of 70 peaks belonging to sugars, fatty acids/esters/steroids and organic acids were identified including sucrose, melibiose, glucose and fructose as major sugars, butyl caprylate, hydroxybutanoic acid and malic acid to contribute for the discrimination between grain species and different maturity …

Long-Term Manure Application Improves Soil Health And Stabilizes Carbon In Continuous Maize Production System, Saurav Das, Daniel Liptzin, Bijesh Maharjan

Department of Agronomy and Horticulture: Faculty Publications

Soil health lies at the core of a sustainable food production system. A comprehensive evaluation of different agronomic practices and their effect on soil health is essential to determine the best practices that support soil ecosystem services. However, it may take years or decades to observe measurable changes in soil health under varying management practices. The objective of this experiment was to evaluate the effects of long-term (>77 years) manure and inorganic nitrogen (N) fertilizer on soil health and determine the interrelationship among the measured soil bio-physicochemical indicators. The study also aims to understand the sustainability of the monocropping …

Sheep Preference For Fresh Leaf And Stem Of Seven Accessions Of Tedera Was Not Influenced By Prior Grazing Experience And Wilting Made No Difference, Justin Hardy, Chris Oldham, Phil Vercoe, Dean Thomas, John Milton, Daniel Real, Andrew Van Burgel, Eric Dobbe

Grain and Other Field Crops Research Articles

Tedera is a valuable high-quality forage for sheep during summer–autumn. There is evidence that prior grazing experience of novel forages influences preference and haymaking of tedera improves preference by goats. In the first experiment, it was hypothesised that the voluntary feed intake (VFI) of fresh leaves and stems of tedera by sheep would be greater for experienced vs. naïve sheep. In the second experiment, it was hypothesised that the VFI of naïve sheep fed wilted leaves and stems of tedera would be greater than fresh leaves and stems of tedera. To test these hypotheses, adult Merino sheep were fed seven …

Sheep Grazing Trigonella Balansae Had Productivity, Health And Meat Quality Similar To Sheep Grazing Subterranean Clover Or French Serradella, M. G. Wilmot, Hayley C. Norman, Joshua Hendry, Paul Young, Elizabeth Hulm, Andrew Toovey, Jane Speijers, Robert J. Harrison

Animal production and livestock research articles

Context: An accession of the annual legume Trigonella balansae Boiss. & Reuter. has been selected for commercial release in Australia.

Aims: As part of a duty-of-care assessment, we tested the hypothesis that sheep grazing the trigonella accession will have liveweight, condition scores and wool production similar to those of sheep grazing two widely adopted annual legumes, subterranean clover (subclover, Trifolium subterraneum L. cv. Dalkeith) and French serradella (Ornithopus sativus Brot. cv. Erica). We also hypothesised that sheep grazing the three legumes will have similar meat quality and health, as indicated by blood plasma panel analysis.

Methods: Wethers (n …

The Effects Of Trailside/Non-Trailside Sample Collection And Tree Communities On Biodiversity Of Mushroom-Forming Fungi In Public Green Spaces Of New London, Connecticut, Quincy Dowling

Botany Honors Papers

The Kingdom Fungi holds a wealth of biodiversity and potential for better supporting both natural and human communities (Lange, 2014). Mushroom-forming fungi have potential value as sustainable and accessible sources of food in public green spaces (Rombach & Dean, 2023). The purpose of this investigation was to examine the effect of trailside disturbance and tree communities on the diversity and community composition of mushroom-forming fungi in New London, Connecticut. Six public green spaces were identified and surveyed for species richness of mushroom-forming fungi. At each site, two foraging areas of equal area were defined: one along either side of a …

Weed-Induced Crop Yield Loss: A New Paradigm And New Challenges, David Horvath, Sharon A. Clay, Clarence J. Swanton, James V. Anderson, Wun S. Chao

Agronomy, Horticulture and Plant Science Faculty Publications

Direct competition for resources is generally considered the primary mechanism for weed-induced yield loss. A re-evaluation of physiological evidence suggests weeds initially impact crop growth and development through resource-independent interference. We suggest weed perception by crops induce a shift in crop development, before resources become limited, which ultimately reduce crop yield, even if weeds are subsequently removed. We present the mechanisms by which crops perceive and respond to weeds and discuss the technologies used to identify these mechanisms. These data lead to a fundamental paradigm shift in our understanding of how weeds reduce crop yield and suggest new research directions …

Alwan: Reef Monitoring With Citizen Science Methods Trainer's Manual, Denise Garcia, Reine Cabreira, Alexis Principe, Wilfredo Licuanan

De La Salle University Publishing House Publications (DLSU PH)

No abstract provided.

Plant Community Response To Control Of A Dominant Invader At Multiple Scales, Alexander R. B. Goetz

Electronic Theses and Dissertations

Control of invasive Tamarix spp. in riparian systems has long been a priority for management in western North America, but questions remain regarding the response of the broader plant community to different treatments. Here we summarize a series of approaches at different scales to quantify the effects of Tamarix control on characteristics of this ecosystem, including provisioning of wildlife habitat. In the first chapter we analyzed findings of the last 20 years using meta-analysis and found that although treatment has been successful in reducing Tamarix and promoting native vegetation to some extent, most literature reports very small effect sizes and …

Alterations In C:N Ratio To Understand Plant Metabolic Pathways In Response To Pressure From Goat Grazing In The Invasive Species: Rhamnus Cathartica, Vivian Marchan

Ignite the Spark Outstanding Undergraduate Research and Scholarship

The high fecundity and high germination rates of Rhamus cathartica serves the species to out-compete regional plant native species. Its high abundance in deciduous forest ecosystems forces species that are unable to utilize R. cathartica as a food source to migrate to areas of lower density, further contributing to the decline in regional biodiversity. Bare soil conditions left as the result of the high concentration of Nitrogen in senesced leaves and leaf litter, cause further amplification of the migration of non-plant species to areas of lower R. cathartica density. Nitrogen is essential to primary and secondary metabolism, thus minimizing the …

Sheep Ingestive Behavior And Tannin Selection In Pampa Grassland And Feedlot, Marina Terra Braga

Green Canyon Environmental Research Area, Logan Utah

The Pampa grassland biome has high plant biodiversity, some with significant secondary compound concentrations such as tannins. Tannin inclusion in ruminant diets may improve meat quality and productivity. However, voluntary intake of this phenolic compound can be a challenge. This dissertation includes three studies within this context. The first study documented whether sheep consume tannin-rich Desmodium incanum (DI), the most common Pampa herbaceous legume species. The second study evaluated how forage tannin and protein concentration influenced sheep feedlot feed selection and the diet affects performance parameters. The third study evaluated sheep feeding behavior in a Pampa native pasture, and how …

Nebline, November/December 2023

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Students Engaged in Culinary Experience With Local and Indigenous Foods

Recipes of the Month: Brownie Batter Hummus and Bison Pizza Topping by Alyssa Havlovic

Time to Order Tree Seedlings

Love Gardening? Become a Master Gardener!

Garden Guide: Things to Do This Month

ProHort Lawn & Landscape Update

Upcoming Green Industry Conferences

Problematic Frozen Pipes Can be Prevented With Routine, Pre-Winter Maintenance by Becky Schuerman

Successful Farmer Series Will Dig Into Cropping Systems Hot Topics

Cover Crop Grazing Conference, Nov. 7

Pester the Pests or Leave the Leaves? by Kait Chapman

Promoting Language Development in Young Children by Hayley Jackson

Heart …

Nebline, January/February 2023

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

2022 Extension Highlights

Thank You Volunteers! Valued at $711,217

From the Unit Leader: Global Connections

4-H Programs Engaged 32,332 Youth

Setting Sustainable, Healthy New Year’s Resolutions by Alyssa Havlovic

Recipe of the Month: Berry Good Pancakes by Aylssa Havlovic

Garden Guide: Thing to Do This Month

Extension’s 2023 Master Gardener Volunteer Training Begins Soon

Upcoming Green Industry Conferences

ProHort Lawn & Landscape Update

2023 Pesticide Applicator Trainings

Crop Production Clinics

Upcoming Ag Workshops

Minimizing the Impact of Winter Weather on Water & Wastewater Systems by Becky Schuerman

Bringing Motor Play Indoors for Young Children by Hayley Jackson

Tiny Bugs in …

Ua37/46 Charles Taylor Faculty/Staff Personal Papers, Wku Archives

WKU Archives Collection Inventories

Personal papers of Charles Taylor.

Letter From The Faculty Editor, Beth Kegley

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

No abstract provided.

Forage Grass Growth Habit And Allelopathy In Birdsfoot Trefoil Germination And Establishment, Nathan El Blake

Graduate Theses, Dissertations, and Problem Reports (ETD)

Birdsfoot trefoil (Lotus corniculatus L.) (BFT) is a high quality, tanniniferous forage legume that has been shown to mitigate gastrointestinal nematode (GIN) infection in sheep. Reliable establishment of birdsfoot trefoil in existing pastures is difficult due to BFT’s poor seedling vigor, susceptibility to crown and root rot, and, perhaps chiefly, competition from other pasture plants. Most existing pastures in the Northeastern United States are primarily composed of cool-season grasses, many of which can be highly competitive. A common form of interplant competition is allelopathy, which occurs when secondary metabolites produced by a plant inhibit a necessary growth process of …

Natural Transmission Of Grapevine Vein Clearing Virus, Matthew Manu

Graduate Theses/Dissertations

More than 60 million tons of grapes are produced annually in the world, making them one of the most widely grown fruit crops. Despite grapes’ economic and health benefits, biotic stressors, such as viruses, cause significant loss to the grape and wine industry. One such virus is grapevine vein clearing virus (GVCV) which seriously threatens grape cultivation in the Midwest region of the United States. This virus has caused the removal of seven commercial vineyards since its discovery in 2004. About 34% of Ampelopsis cordata wild vines are infected with GVCV and serve as a primary inoculum for the spread …

Forage News [2023-01], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

No abstract provided.

Southeast South Dakota Experiment Farm Annual Progress Report, 2023, Southeast South Dakota Research Farm

Agricultural Experiment Station and Research Farm Annual Reports

This is an annual report of the research program at the Southeast South Dakota Research Farm in cooperation with South Dakota Agricultural Experiment Station and the SDSU College of Agriculture, Food, and Environmental Sciences and has special significance for those engaged in agriculture and the agriculturally related businesses in the ten county area of Southeast South Dakota. The results shown are not necessarily complete or conclusive. Interpretations given are tentative because additional data resulting from continuation of these experiments may result in conclusions different from those based on any one year.

Effects Of Time-Restricted Feeding And Whey Protein Isolate Supplementation On Dietary Intake, Mood, And Sleep In A 12-Week Randomized Controlled Trial, Sydney E. Boudrey, Aubree L. Hawley

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

Obesity affects adults in the United States, leading to chronic diseases and reduced well-being. Time-Restricted Feeding (TRF) is a type of dietary intervention lacking current data regarding the effectiveness on facets of well-being. This study’s objective was to determine the effect of time-restricted feeding supplemented with whey protein isolate on food intake, sleep, and mood in overweight or obese adults. Nineteen participants were randomly assigned to the control or experimental group: 1) control, TRF, and 2) experimental, TRF with whey protein supplementation. Participants followed the assigned dietary intervention for 12 weeks. Every 4 weeks (baseline, week 4, week 8, and …

Contents, Discovery Editors

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

No abstract provided.

Letter From The Dean, Jean-Francois Meullenet

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

No abstract provided.

Featured Faculty Mentor/Student Team, Gisela Erf, Alessandro Rocchi

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

No abstract provided.

Restoring An Iconic Joshua Tree Forest: Natural Recovery, Restoration Success, And Soil Microhabitats On A Desert Burn Area, Riley Scaff

Pitzer Senior Theses

Wildfires are a novel disturbance type in the Mojave Desert, but have been increasing in size and frequency since the 1970s due to the proliferation of invasive grasses. Burned areas are more susceptible to invasion, which can lead to the establishment of a grass-fire cycle. For this reason, restoration is often necessary to facilitate natural plant community recovery, but the extreme desert climate makes returning native vegetation to burn areas challenging. Planting in nutrient-rich soil microhabitats could be a helpful tool to improve revegetation success, but has yet to be tested. This study surveyed natural postfire recruitment across two seasons …

Changes In Ecosystem Processes And Functional Traits Over An Elevational Gradient, Tiana Issa

Honors Theses

Elevation gradients have been used to understand how climate change impacts various ecosystems processes by substituting distance across elevation with time, reflecting a previous, colder climate. To monitor the changes in soil organic carbon (SOC), plant community, and functional traits across time in the face of climate change, this study used space-for-time substitution to emulate a long-term study with elevational gradients and revisited the same gradient for nearly two decades to monitor elevational effects across time. With this research, I aim to answer the following questions: (1) How does elevation impact ecosystem processes and alpine plant traits? (2) How does …

Genome-Wide Association Studies And Advanced Genomic Selection Strategies: Towards The Optimization Of Oat (Avena Sativa L) Breeding, Girma Ayana

Electronic Theses and Dissertations

Oats are important cereal crops worldwide, primarily valued for their nutritional and health benefits. The primary goal of oat breeding programs is to accelerate genetic gain to develop oat varieties with the desired product profiles, with the aim of meeting the needs and expectations of growers, processors, and consumers. Achieving this goal involves conducting extensive and resource-intensive field trials, particularly for traits such as crop yield and grain quality, which are strongly influenced by environmental factors. The availability of cost-effective molecular markers and tools like genome-wide association studies (GWAS) and genomic selection have the potential to accelerate the oat breeding …

Big Meadows Mountain Meadow & Aspen Restoration Project 2017 – 2023 Summary Report, Scott River Watershed Council

Aspen Bibliography

Big Meadows Mountain Meadow and Aspen Restoration Project is designed to enhance aspen and mountain meadow habitats at Big Meadows, a property that is privately owned by Ecotrust Forest Management (EFM). EFM owns approximately 40,000 acres in the Klamath Mountains of Siskiyou County, known as the Scott River Headwaters Property. The Scott River Headwaters Property Management Plan, developed by EFM, specifically identifies and prioritizes the restoration of aspen woodlands. As such, EFM and Scott River Watershed Council (SRWC) partnered with the goal of improving these critical habitats. The Big Meadows complex is one of the largest mountain meadow systems within …

Plant Cell Wall Composition And In Vitro Fermentation Characteristics Of Cool-Season Forage Grasses From Two Growing Seasons In Central Kentucky, Sophia Danielle Newhuis

Theses and Dissertations--Animal and Food Sciences

Grass cell walls are rich in cellulose, hemicellulosic arabinoxylan (AX) polysaccharides, and lignin. AX structural differences such as degree and pattern of branching and the ester-linked phenolic acid content could affect plants’ digestibility when used as forage for livestock. However, there is little information about how these structural elements change over the growing season in the vegetative tissue of cool-season perennial grasses. Enhanced information about the cell wall composition and carbohydrate structure of forage material will provide a foundation for expanding our knowledge of how forage cell wall carbohydrate structures are utilized by ruminants. The objectives of this study were …

Profiling The Cell Wall Polysaccharides Of Hemp (Cannabis Sativa L.) Inflorescence And Hempseed And Exploring Their Application As Ruminant Feed Ingredients, Miranda Agbana

Theses and Dissertations--Animal and Food Sciences

Hemp (Cannabis sativa L.) is used in the United States as a source of CBD oil, fiber, and grain. While hempseeds are consumed whole or as dehulled hemp hearts, hempseed oil is also a desirable seed oil in human nutrition. The process of collecting hempseed oil leaves behind hempseed cakes that are abundant in protein and fiber. Feeding of hempseed cakes to animals, including ruminants, has only initially been explored. Extraction of CBD from hemp inflorescences generates organic waste that may find a second purpose as a fiber feed for cattle. Little is known about the exact fiber composition …