Beef Science Commons^™

How To Turn Collectors Of Edible Insects Into Mini-Livestock Farmers: Multidimensional Sustainability Challenges To A Thriving Industry, Sarah Nischalke, Ingo Wagler, Chrysantus Tanga, David Allan, Chama Phankaew, Christian Ratompoarison, Andrianantenaina Razafindrakotomamonjy, Elizabeth Kusia

All Peer-Reviewed Publications

Edible insects reared under suitable climatic conditions are an efficient and ecological food source. However, most of the insects come from wild collection and not from farms (FAO, 2013). To establish insects as part of a sustainable food environment, collectors, farmers or small entrepreneurs need to be transformed into mini-livestock farmers, but people who eat or collect insects do not necessarily want to rear them. This paper presents four case studies from Kenya, Madagascar, Myanmar and Thailand, which are in different stages of sector development to show pathways for establishing insect rearing, and the associated economic, resource/ecological and social challenges …

Drought Decisions: Profit Maximizing Decisions During And After Drought Conditions, Robert Tigner, Elliott James Dennis

Extension Farm and Ranch Management News

In summary, using available price risk management tools can effectively reduce some of the market price risk variability that is inherent in agricultural production that are caused by either production or price risk.

Analyzing The Management Practices Of East Texas Beef Cattle Producers, Hiliary Cheyenne Swor

Electronic Theses and Dissertations

A survey of East Texas beef cattle producers was designed to evaluate the management practices that were prevalent in the area. Demographic and cattle operation data from 103 respondents were analyzed using SPSS (Version 25; Chicago, IL). This electronic-based survey was distributed through Qualtrics. Respondents were located in Angelina, Nacogdoches, or Cherokee county. Most producers (38.8%) had a Bachelor’s degree. A negative correlation was established between castration method and weaning weight (p = - 0.204). Calves were weaned 50 pounds heavier when band or surgically castrated. Females were less likely to castrate their calves or utilize a mineral program. Approximately, …

Life Cycle Assessment Of The Us Beef Processing Through Integrated Hybrid Approach, Shaobin Li, Yuwei Qin, Jeyamkondan Subbiah, Bruce Dvorak

Department of Civil and Environmental Engineering: Faculty Publications

Hybrid life cycle assessment (LCA) incorporating process-based and economic input-output (EIO)–based inventory data has been applied in various industries (e.g., wind energy, biofuel). Few hybrid LCA studies have been found in the food industry. This work analyzes the life cycle environmental impacts of the US beef processing industry using process-based and integrated hybrid LCA. The process-based inventory includes all resource inputs and waste outputs associated with a beef processing plant. The EIO-based inventory includes key activities missing in the process-based inventory, such as technical and management service, wood and paper, and industrial equipment. Ten environmental impact categories from TRACI v2.1 …

Tropical Forage Technologies Can Deliver Multiple Benefits In Sub-Saharan Africa. A Meta-Analysis, Birthe K. Paul, Jessica Koge, Brigitte L. Maass, An Notenbaert, Michael Peters, Jeroen C.J. Groot, Pablo Tittonell

All Peer-Reviewed Publications

Scarcity of quantity and quality feed has been a key constraint to productivity of smallholder crop-livestock systems. Tropical forages include a variety of annual and perennial grasses, herbaceous and dual-purpose legumes, and multipurpose trees and shrubs. They have been promoted in Sub-Saharan Africa (SSA) for increasing livestock productivity and household income through higher quantity and quality of herbage, while contributing to soil improvement and higher food crop yields. For the first time, we quantitatively reviewed 72 experimental studies from across SSA to take stock of geographical distribution and forage technology focus of past research; quantify magnitudes of multidimensional impacts of …

Feeder Cattle Future Price Spreads: Opportunities To Hedge?, Elliott James Dennis

Extension Farm and Ranch Management News

First paragraph:

Feeder cattle future price spreads across all months have recovered to near pre-COVID-19 levels as quarantine restrictions and packing plant capacity issues have been mostly sorted out. For example, for the week of July 17, 2010 [sic], prices reached levels not seen since the beginning of March 2020. Pasture and corn progress are two factors that have the potential to push prices lower in the next coming months. Given current market conditions, producers have some options to lock in a margin.

What Drives Bull Prices, And How Much Can I Spend On A Bull?, Matthew D. Garcia, Ryan Larsen, C. K. Chapman

All Current Publications

Several factors determine the age-old question of how much to pay for a bull. These factors are highly variable and can fluctuate from year to year. The five main factors influencing bull prices are explored in this fact sheet, including breed, availability, auction activity, breeder reputation, and genetic potential.

Sdsu Beef Day 2020 Complete Proceedings, Department Of Animal Science

SDSU Beef Day 2020 Summary Publication

This is the complete proceedings of the South Dakota State University, Department of Animal Science Beef Day 2020. The proceedings contain research presented on the following topics:
Cow/Calf
SDSU Extension
Feedlot
Meat and Human Nutrition
Reproduction

The Effects Of Excess Dietary Sulfur Using Supplemental Sodium Sulfate On Beef Steer, Heifer, And Progeny Productive And Physiological Responses, Jamie Hawley

Graduate Theses and Dissertations

For studies 1 through 3, 20 steers of predominantly Angus breeding, were stratified by body weight (279 ± 13.2 kg), assigned randomly to 6 paddocks, and fed a low S ground corn and soybean meal supplement that did not contain any byproduct feeds (0.31% total dietary S; LS) or LS supplement with an additional 0.25% S provided from sodium sulfate (Na2SO4; 0.58% total dietary S; HS) for a 114-d growing phase. Steers were moved to feedlot (373 ± 0.2 kg), remained on prior dietary S treatments, and fed corn and soybean meal diets (0.19 and 0.42% total dietary S; LS …

Livestock Preference For Endophyte-Infected Or Endophyte-Free Oxytropis Sericea, Ipomoea Carnea, And Ipomoea Asarifolia, James Pfister, Daniel Cook, Stephen T. Lee, Dale R. Gardner, Franklin Riet-Correa

Poisonous Plant Research (PPR)

Fungal endophyte-infected forages have been shown to alter herbivore feeding preferences. The objective of this experiment was to compare the preference of cattle, sheep, and goats for plants containing (E+) and not containing (E-) fungal endophytes using freshly harvested Oxytropis sericea, Ipomoea carnea, and Ipomoea asarifolia. Goats and sheep rejected all forage choices regardless of endophyte status except for grass and alfalfa hay. Endophyte status had no influence on cattle forage preferences. Cattle rejected all Oxytropis sericea E+ and E- choices. Cattle discriminated between Ipomoea species, preferring Ipomoea carnea to Ipomoea asarifolia (P = 0.004). In all …

Beefsd: Creating Learning Communities To Improve Management Capacity Of Beginning Beef Producers, Department Of Animal Science

SDSU Beef Day 2020 Summary Publication

The average age of agriculture producers in the U.S. is 58 and has been steadily rising over the last several decades. As the large cohort of older producers retires, ensuring that beginning producers are successful as their replacements is paramount. The goal of the beefSD program has been to provide a curriculum to beginning producers that equips them with the tools and capacity to make wise management decisions that lead to economic, ecological, and sociological sustainability and contribute to ongoing agricultural production, land stewardship, and rural community viability. The objective of this curriculum is to provide them with knowledge of …

Evaluation Of Bedding Application On Steroidal Ear Implant Abnormality Rate In Beef Steers, Elizabeth M. Buckhaus, Dathan T. Smerchek, Zachary K. Smith

SDSU Beef Day 2020 Summary Publication

Objective: To evaluate the effects of bedding application on steroidal implant abnormalities (i.e. abscess, hard, knot, missing, partial, and soft inflammation).

Effects Of Increasing Doses Of Trenbolone Acetate And Estradiol On Sera Metabolites Following Implantation During The Finishing Phase In Beef Steers, D. T. Smerchek, Z. K. Smith

SDSU Beef Day 2020 Summary Publication

Objective: To determine the effects of increasing doses of trenbolone acetate and estradiol on sera metabolite responses following implantation during the finishing phase in beef steers.

Influence Of Micrornas From Semen On Bovine Fertility, Stephanie D. Perkins, Britany N. Keel, Emmalee J. Northrop, Tara G. Mcdaneld, Robert A. Cushman, Bo R. Harstine, J. Mel Dejarnette, Matt D. Utt, George A. Perry

SDSU Beef Day 2020 Summary Publication

The objective of this study was to compare the miRNAs within sperm cells of bulls considered to have high and low fertility.

Influence Of Post-Harvest Circulatory Rinse On Tenderness And Objective Color Of Cow Striploin Steaks, L. M. Hite, J. K. Grubbs, A. D. Blair, K. R. Underwood

SDSU Beef Day 2020 Summary Publication

The objective of this study was to compare the effect of a post-harvest rinse of an isotonic solution through the circulatory system on tenderness of steaks from cows.

Beef Quality Assurance Programs, Heidi Carroll

SDSU Beef Day 2020 Summary Publication

Since January 2018, SDSU Extension has coordinated the various South Dakota Beef Quality Assurance (BQA) programs including BQA certification, BQA Transportation (BQAT) certification, BQA on-farm assessments, and South Dakota BQA Trainer certification. Additionally, as the State BQA Coordinator, assistance is provided to dairymen on the national BQA-equivalent program, Farmers Assuring Responsible Management (FARM) Animal Care.

Evaluation Of Variation Attributable To Lab And Technician For Measurements Of Beef Carcass Traits Made Using Ultrasound, B. Schmidt, M.D. Macneil, M. G. Gonda

SDSU Beef Day 2020 Summary Publication

National cattle genetic evaluations assume technician and imaging lab do not contribute to phenotypic variation when measuring carcass traits by ultrasound. The objective of this study was to estimate variance components of ultrasound carcass measurements, specifically variance contributed by ultrasound technician and imaging laboratory. Accounting for technician and imaging lab variation may increase accuracy of genetic predictions for carcass traits. Ultrasound carcass predictions for ribeye area (REA), percent intramuscular fat (IMF), and backfat (BF) were provided by the American Angus Association (AAA; n=281,982 animals), American Hereford Association (AHA; n=49,602), and American Simmental Association (ASA; n=59,576) for a total of 391,160 …

Positive Improvements On Body Composition And Muscle Strength In Older Adults Consuming The Dietary Approaches To Stop Hypertension Diet Containing Beef, M. Hossain, C. Perry

SDSU Beef Day 2020 Summary Publication

Objective: To determine the effect of beef consumption as a part of the DASH diet on measures of anthropometric and muscle health in adults 65 and older.

Determining The Efficacy Of Predicting Beef Tenderness Using Proteins From Purge, M. Jia, B. Bowker, S. Zuelly, A. Blair, K. Underwood

SDSU Beef Day 2020 Summary Publication

Objective: To determine if proteins from purge can predict tenderness at different aging points as a nondestructive method.

Bovine Emergency Response Plan (Berp) Program, Heidi Carroll

SDSU Beef Day 2020 Summary Publication

Annually in the United States, billions of livestock are marketed and transported for breeding, feeding, exhibition, and slaughter. On any given day, several hundred thousand head of livestock are on the road. The transport of livestock is an integral and economically significant part of all livestock industries, especially in South Dakota where animal agriculture ranks number one and animal recreational activities are prevalent. South Dakota roadways are also common truck routes for the movement of livestock within North America. Accidents involving livestock have increased over the years and pose unique challenges to first responders, law enforcement, and the public. The …