Animal Sciences Commons^™

Breeding Ewes Are Worth Feeding, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

Despite potentially elevated grain prices, strong prices for meat and wool mean that Western Australian sheep farmers can confidently supplementary feed their underweight ewes in summer/autumn.

Analysis in 2019, based on then-current prices, showed it was a profitable investment to feed all ewes to maintain condition during pregnancy, and to feed low condition score single bearing ewes and low and medium condition score twin bearing ewes to gain condition.

In 2019, John Young from Farming Systems Analysis Service completed an analysis on the value of a ewe in the WA farming system. His report had some important messages for the …

Testing Feed Is Vital For Feed Budgeting, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

A little knowledge of the nutritional value of your supplementary feeds can save you a lot of money and hassle.

In dry seasons, it is likely that farmers will need to start supplementary feeding earlier than usual. The higher requirement for supplementary feeds over dry seasons means accurate feed budgeting becomes increasingly important to minimise feed wastage, for weaner survival, and to maintain stock at the right condition score (CS) for joining.

Native Budworm Spraying Threshold, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

The number of native budworm caterpillars in a crop is the major factor determining potential economic damage from the pest. Table 1 was generated with results from department trials to provide an estimate of potential loss from native budworm damage.

Crop loss (kilograms per hectare (kg/ha)) for each caterpillar netted in 10 sweeps (or found per square metre (m2 )) is shown in Table 1. One caterpillar netted in 10 sweeps is equivalent to about 20,000 caterpillars/ha for most pulse crops, assuming an even distribution over the crop

Assessment Of American Tannin-Free Grain Sorghum As Feedstuff For Poultry: Nutrient Composition, Amino Acid Digestibility And Bird Performance, Santiago Sasia

All Dissertations

Given the rising cost of poultry diets, alternative ingredients like sorghum are crucial for maximizing returns without compromising product quality. Sorghum's drought tolerance and adaptability, along with its nutritional profile, make it a viable corn substitute. This dissertation examines the nutrient composition, amino acid digestibility, and performance of poultry fed with American tannin-free grain sorghum. Chapter II evaluates the impact of sorghum-based diets, with or without phytase superdosing, on broiler performance, including body weight, weight gain, feed intake, and feed conversion ratio. Results indicate that sorghum can replace corn without adverse effects on broiler performance. Chapter III explores the partial …

Evaluating 45 Years Of Collaborative Range Livestock Education, Melanie Heaton, Andrew Brischke, Ben Scow

Outcomes and Impact Quarterly

The Arizona/Utah Range Livestock Workshop & Tour builds cooperation and understanding between public land grazing permittees and federal agency personnel through science-based education. The workshop provides information on livestock production practices and addresses controversial grazing issues in a non-confrontational environment. Topics range from animal handling, vaccination, and health to solar development, partnering with public land agencies, and recreation effects.

Growing South Dakota (Summer 2024), College Of Agriculture, Food And Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Hayengas endow department head of animal science
[Page] 4 Reese named Klingbeil Endowed Educator
[Page] 5 SDSU Rodeo at Nationals
[Page] 6 Nwadike leading Department of Dairy and Food Science
[Page] 8 Hansen serving as 2024 Hobo Day Grand Pooba
[Page] 10 The scoop on the Davis Dairy Plant
[Page] 14 Research shows value in change
[Page] 16 Legacy of 'Yellow Ore, Yellow Hair, Yellow Pine'
[Page] 20 SDSU beef team grows
[Page] 22 SDSU Extension supporting local foods movement
[Page] 24 Bolstering rural child care needs
[Page] 26 Feeding kids great food
[Page] 27 Education Abroad takes …

Comparison Of Sheep And Goats To The Acute Toxic Effects Of Foothill Death Camas, Kevin D. Welch, Stephen T. Lee, Clint A. Stonecipher, Dale R. Gardner, Daniel Cook

Poisonous Plant Research (PPR)

Death camas (Zigadenus spp) is a perennial forb found throughout the western United States, which is known to kill both sheep and cattle. In a previous study, goats appeared to be somewhat resistant to the adverse effects of death camas. Therefore, the objective of this study was to directly compare the susceptibility of goats and sheep to the acute toxic effects of death camas. Sheep and goats were dosed at 0.5, 1.0, 2.0, 4.0, and 6.0 g death camas per kg BW. The data presented in this manuscript suggest that goats are more susceptible to death camas than sheep. …

Toxicosis From Range Lupine Ingestion In A Research Herd Of Rafter 7 Merino Sheep, Benjamin J. Weigler, Walter F. Mandeville Iii, Scott Huber, Gary Mccuin, Fabrizio Caragena, Daniel D. Cook, Stephen T. Lee, Chris A. Pritsos

Poisonous Plant Research (PPR)

An outbreak of lupine alkaloid neurotoxicosis and death occurred in sheep grazed on rangeland areas of the Nevada Great Basin during the summer of 2023. Overall, 97 sheep died despite veterinary supportive care. Lupinus argenteus var. utahensis was implicated as the causative plant with high levels of lupanine (11.5 µg/mg) and spartiene (13.7 µg/mg) in collected and archived samples. Previous reports of sheep deaths due to lupine ingestion have not been recorded in this region. An increased abundance of the number plants producing seed pods having a high alkaloid content may have been associated with abnormally elevated levels of precipitation …

Cattle Toxicity From Woolly Locoweed (Astragalus Mollissimus): A Case Study In Central New Mexico, Casey N. Spackman, Clint A. Stonecipher, Daniel Cook

Poisonous Plant Research (PPR)

Livestock toxicity resulting from poisonous plants poses a significant challenge for ranchers, particularly concerning locoweeds (Astragalus spp. or Oxytropis spp.). This study investigated a case of cattle poisoning in central New Mexico, where clinical signs were consistent with locoweed toxicity. Rangeland conditions were hot and dry following earlier spring rains, promoting advantageous environmental conditions for a locoweed outbreak. Analysis of Woolly locoweed (Astragalus mollissimus) and animal samples from the ranch confirmed the presence of swainsonine, a key toxin in locoweeds. It can be concluded that the likely cause of cattle losses was locoweed toxicity, highlighting the …

Beefsd: An Integrated And Intensive Extension Curriculum For Beginning Beef Cattle Producers, Krista A. Ehlert, Amanda D. Blair, Stacy Hadrick, Ken Olson

Journal of Extension

There is a strong need to increase the opportunities for and success of the next generation of beef cattle producers. South Dakota State University Extension provides a 2-year educational program called “beefSD;” the purpose is to provide producers with a holistic view of the beef industry, an appreciation for utilizing adaptive management to respond to challenges and opportunities, and skills to assess and manage factors that influence overall operation sustainability. The curriculum has four major components: 1) in person workshops, case studies, interactive webinars, and homework 2) out-of-state learning experiences, 3) ranch to rail program, and 4) networking and mentoring.

Deferred Grazing And Sheep At The Break Of Season In South West Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

Grazing annual pastures in the first 12 days after germination can lower the productivity of pastures during winter by removing poorly rooted plants, and by reducing plant leaf area to sub-optimal levels. The Department of Primary Industries and Regional Development (DPIRD) recommends deferring grazing of pasture paddocks at the break-of-season until feed on offer is at least 500–800 kilograms of dry matter per hectare (kg DM/ha). At this level, pasture plants are likely to be firmly rooted and have sufficient leaf area to be productively grazed.

Grazing Annual Pastures – Using Feed On Offer (Foo) As A Guide, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

Grazing management in winter and spring in South West Western Australia (SW WA) can manipulate the quality, quantity and composition of pasture. These pasture changes can increase livestock feed efficiency and productivity, reduce insect populations and improve pasture persistence. Seasonal grazing based on feed on offer (FOO) is described here to maximise stocking rate and pasture production.

The Department of Primary Industries and Regional Development recommends using feed measurements and feed budgeting to increase productivity and reduce livestock health risks.

Boosting Winter Pasture Growth, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Applying gibberellic acid or nitrogen fertiliser to pasture in winter can increase dry matter production of grasses and broadleaf weeds and help reduce feed shortages in winter.

Church2024_Development Of A Rhizobium Seed Coating...Data, Bridget M. Church, Brad Geary, Curtis L. Drake, Joel Griffitts, Kate Ruebelmann, Shannon V. Nelson, Matthew D. Madsen

ScholarsArchive Data

This file contains the data description for the “Church2024_Development of a Rhizobium Seed Coating…” Supplementary File.

The excel file contains six worksheets: 1) Exceed Study Data, 2) Exceed Study Tiss TotN%, 3) Inoc Study data, 4) Inoc Study Tiss TotN%, 5) Seed Coat study data, Seed Coat study Tiss TotN%.

New York City’S Rising Sea Level And Coastal Erosion: Approaches To Resiliency, Ryder D. Isidro

Student Theses 2015-Present

No abstract provided.

Identifying High-Value Tactical Livestock Decisions On A Mixed Enterprise Farm In A Variable Environment, Michael Young, John Young, Ross S. Kingwell, Philip E. Vercoe

Animal production and livestock research articles

Context

Australia is renowned for its climate variation, featuring years with drought and years with floods, which result in significant production and profit variability. Accordingly, to maximise profitability, dryland farming systems need to be dynamically managed in response to unfolding weather conditions.

Aims

The aim of this study is to identify and quantify optimal tactical livestock management for different weather-years.

Methods

This study employed a whole-farm optimisation model to analyse a representative mixed enterprise farm located in the Great Southern region of Western Australia. Using this model, we investigated the economic significance of five key livestock management tactics. These included …

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

All Theses

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

Using Annual Forages To Replace Declining Cool-Season Grass Pasture Availability, Jonathon Matthew Jenkins

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

As land area in grain crop production increases in the US Midwest, perennial pasture availability decreases but the demand increases. Matching the seasonal growth patterns of C₃ and C₄ plant species to grow forages that are complementary allows producers to fill production gaps in otherwise monoculture systems and possibly increase overall productivity. One way to fill the forage production gap of C₃ grass dominated pastures is by producing a warm-season, annual forage in a separate field. However, with continual reductions in land availability, this may not be an option. Using two studies, our objectives were to improve …

Hilling As A Management Tactic And Tool For Understanding Soybean Gall Midge (Resseliella Maxima Gagné), Pragya Gupta

Department of Entomology: Dissertations, Theses, and Student Research

Soybean gall midge (Resseliella maxima Gagné, SGM) emerged as a new species in the United States Midwest in 2019, causing injury to soybean (Glycine max L.) Infestation of R. maxima starts with females laying eggs in the fissures or cracks that develop at the base of soybean during the V2-V3 growth stage. The emerged larvae feed on the stem internally, leading to wilting and death of the plants. With knowledge gaps in biology and behavior, management strategies for this pest are challenging. Hilling is a cultural practice causing soil to cover the base of stems and is …

Life Line Spring 2024, Otterbein Biology And Earth Science Department

Life Line - The Biology Department Newsletter

In this Issue:

The Department Welcomes Dr. Grooms; Otterbein's New Pollinator/Rain Garden; Alumni Return to Share Research; Svitana Serves on Ohio EPA VAP Rules Review Advisory Committee; Field Geology Students Explore Death Valley and the Grand Canyon; Students Volunteer at Remote Area Medical Clinic; The Mussels of the Stillwater River and Greenville Creek; More Than "Just" a Chickadee; An Enriching Time at the Zoo; Human Reaction Times; Using Computer Models to Inform Real World Control Methods in Street Dogs; Svitana Continues Work with NGWA; DIY Microbial Fuel Cell Challenge; Birds of a Feather...; Students Research Impact of Sunscreens on Corals; …

Growing South Dakota (Spring 2024), College Of Agriculture, Food And Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 3 Empowering the Next Generation of Agriculture
/="/">[Page] 5 Celebration of Faculty Excellence
/="/">[Page] 7 Judging Teams Provide Connection, Critical Skills
/="/">[Page] 11 Melanie Caffe: SDSU Oat Breeder Finds Motivation in Making a Difference for Farmers
/="/">[Page] 13 2024 CAFES Outstanding Seniors
/="/">[Page] 14 SDSU Celebrates Students Accepted to Veterinary Schools through Stethoscope Ceremony"
/="/">[Page] 15 New Researchers in CAFES
/="/">[Page] 17 Hitting the Mark – Shooting Sports Driving Growth in SDSU Extension 4-H Program
/="/">[Page] 19 A New Century Leads to a New Barn
/="/">[Page] 20 CAFES News & …

Using Arbuscular Mycorrhizal Fungi To Help Establish And Increase Vigor Of Plants In Mineland Soils, Melissa Burrell, Brad Geary, Shannon Nelson, Josh Moroni De Santiago Lazalde, Scott Kent, Matthew Madsen

Library/Life Sciences Undergraduate Poster Competition 2024

• Vegetation establishment in areas impacted by mining can be difficult due to a lack of beneficial soil microbes.
• The introduction of soil mutualists, such as arbuscular mycorrhizal fungi (AMF), may improve mineland revegetation efforts. AMF forms a mutually beneficial relationship with plants to aid in nutrient absorption and improve water uptake.
• Practitioners commonly need to decide where to source their AMF. Locally collected AMF requires effort to collect and process, but this source should be adapted to the restoration site. Commercial products are easy to obtain, but their strains may not be suitable for the environment they are being placed …

Cook2024_Influence Of Planting Depth Data, Kyle A. Cook, Brad Geary, Phil S. Allen, April Hulet, Kevin Gunnell, Melissa Landeen, Shannon V. Nelson, Matthew D. Madsen

ScholarsArchive Data

This file contains the data description for the Cook2024_1_Influence of Planting Depth… Supplementary File.

The excel file contains two worksheets: 1) Lab Trial Data, and 2) Field Trial Data.

1) Lab Trial Data

A) Block: block (rep) of the sample

B) Soil Type: soil type for that sample- loam, sandy-loam, or loamy-sand

C) Seed Treatment: seed treatment, control or coated

D) Seeding Depth (mm): depth, in mm, the seeds were planted- 0, 3.2, 6.3, 12.7

E) Week 1 Emerge: total number of seedlings emerged in Week 1

F) Week 2 Emerge: total number of seedlings emerged in Week 2 (includes …

The Long-Term Effects Of Prescribed Fire On Floral Abundance And Bumble Bee Abundance In Mixed-Oak Forests Of Southeastern Ohio, Moses Shafer

Theses, Dissertations and Capstones

Pollinators are declining due to climate change and habitat loss driven by agriculture and urbanization. In fire-adapted ecosystems, fire promotes the biodiversity of plants by creating space, reducing competition, and increasing light and nutrient availability. However, little is known regarding the effects of fire on floral abundance of plants used by Bombus. The overall goal of this project was to assess the long-term effects of fire on floral abundance and Bombus abundance. Our specific questions were: (1) How does fire frequency influence floral abundance?, (2) How does fire frequency influence floral abundance of species specifically utilized by bumble bees?, …

Environmental Biology Masters Capstone, Antonio Gonzalez-Pita

Regis University Student Publications (comprehensive collection)

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

Incorporating Sex-Diverse And Gender-Inclusive Perspectives In Higher Education Biology Courses, Breanne N. Harris, A Kelsey Lewis, Sam L. Sharpe, Teri J. Orr, Christopher T. Martine, Chloe C. Josefson

Faculty Journal Articles

Inclusive teaching is teaching in a way that reaches all students in the classroom; this is beneficial for everyone, particularly for those with minoritized identities. Instructors play a critical role in scaffolding how students are exposed to and learn science content in the classroom. In this manuscript, we discuss how biology instructors can make their classrooms more inclusive with regard to sex and gender diversity content. Many topics in biology are based on androcentric, heteronormative, and oppressive framing, even though those lenses are more reflective of our own history and culture than they are of the diversity we see in …

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 25 2024, Several Authors

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

No abstract provided.

Letter From The Faculty Editor, Beth Kegley

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

No abstract provided.

Featured Faculty Mentor/Student Team, Austin Jones, Ashley Dowling, Baylie Day

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

No abstract provided.

Evaluating Efficiency And Accuracy Of Three Texture Analysis Methods For Blackberry Fruit, Rhys M. Brock, Carmen Johns, Katelyn Lust-Moore, Margaret Worthington

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

A major objective of the University of Arkansas System Division of Agriculture (UADA) Fruit Breeding program is to improve the texture of blackberry (Rubus subgenus Rubus Watson). Blackberry varieties with improved fruit firmness transport and store well and may maintain superior quality under challenging postharvest conditions than softer varieties. Increased firmness may also make cultivars less susceptible to red drupelet reversion (RDR), a postharvest disorder of blackberries in which fully black drupelets revert to red after harvest. This research project aims to assess the efficiency and accuracy of three methods applied in evaluating blackberry firmness. The study compares instrumental analysis …