Open Access. Powered by Scholars. Published by Universities.®

Beef Science Commons

Open Access. Powered by Scholars. Published by Universities.®

215 Full-Text Articles 293 Authors 0 Downloads 12 Institutions

All Articles in Beef Science

Faceted Search

215 full-text articles. Page 1 of 5.

Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender 2018 Fordham University

Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender

Student Theses 2015-Present

This paper aims to shed light on the dissonance caused by the superimposition of Dominant Human Systems on Natural Systems. I highlight the synthetic nature of Dominant Human Systems as egoic and linguistic phenomenon manufactured by a mere portion of the human population, which renders them inherently oppressive unto peoples and landscapes whose wisdom were barred from the design process. In pursuing a radical pragmatic approach to mending the simultaneous oppression and destruction of the human being and the earth, I highlight the necessity of minimizing entropic chaos caused by excess energy expenditure, an essential feature of systems that aim ...


Evaluation Of Alpha Amylase Containing Corn On Finishing Cattle Performance And Digestibilty, Melissa L. Jolly-Breithaupt 2018 University of Nebraska Lincoln

Evaluation Of Alpha Amylase Containing Corn On Finishing Cattle Performance And Digestibilty, Melissa L. Jolly-Breithaupt

Theses and Dissertations in Animal Science

One digestion and four finishing trials were conducted to evaluate the effect of a new corn hybrid containing an α-amylase trait, Syngenta Enogen Feed Corn (SYT-EFC) on site and extent of digestion, ruminal fermentation parameters, and feedlot performance. Experiments utilized corn containing the enzymatic gene compared to controls, the near isoline parental corn (NEG) or commercially available corn grain (CON), processed as dry-rolled corn (DRC) or high moisture corn (HMC) in diets with dry [distillers grains plus solubles (DGS)] or wet (Sweet Bran) milling byproducts. The corn grain of the experimental diets were fed as the sole grain source, comprising ...


Corn Residue Grazing As A Component Of Semi-Confined Cow-Calf Production And The Effects Of Post-Weaning Management On Feedlot Performance, Shelby E. Gardine 2018 University of Nebraska-Lincoln

Corn Residue Grazing As A Component Of Semi-Confined Cow-Calf Production And The Effects Of Post-Weaning Management On Feedlot Performance, Shelby E. Gardine

Theses and Dissertations in Animal Science

Grazing corn residue can be a valuable alternative to harvested winter feed in a cow-calf production enterprise. The objectives of the first study were to: 1) determine the sample size needed to accurately estimate yield of corn grain and residue and 2) evaluate changes in residue quality throughout the fall/winter and spring-grazing seasons. Results suggest that 6-10 plants serve as a representative sample for grain yield while 7- 10 plants are needed for a representative sample of residue yield. In vitro OM digestibility was greatest at the beginning of the fall and spring grazing seasons and declined over time ...


Construction Of A Pen-Scale Methane Collection System And Dietary Strategies For Methane Mitigation From Growing And Finishing Cattle, Thomas Winders 2018 University of Nebraska - Lincoln

Construction Of A Pen-Scale Methane Collection System And Dietary Strategies For Methane Mitigation From Growing And Finishing Cattle, Thomas Winders

Theses and Dissertations in Animal Science

Methane production from ruminants has been researched for many years because it has a global warming potential 25x that of carbon dioxide, meaning that mitigating smaller amounts of methane can have a large environmental impact. Research has focused on individual animal methane measurements, but the literature lack in industry-scale measurements. For that reason, the methane barn was built to evaluate dietary strategies on pens of cattle rather than on individual animals. In order to test the methane barn capabilities, an experiment designed to produce differences in methane production was conducted. Cattle received the same growing diet, at either ad-libitum access ...


A Student Hosted Cattle Sale As An Approach To Experiential Learning, Wade Lang, Courtney Biles 2018 Stephen F Austin State University

A Student Hosted Cattle Sale As An Approach To Experiential Learning, Wade Lang, Courtney Biles

Undergraduate Research Conference

OBJECTIVE: The objective of this study was to determine if a student hosted cattle sale resulted in a beneficial learning experience and if a 30-day reflection period would change student perspective.


Using 3d Models And Virtual Reality To Foster Learning Of Carcass Anatomy, Renae Sieck 2018 University of Nebraska - Lincoln

Using 3d Models And Virtual Reality To Foster Learning Of Carcass Anatomy, Renae Sieck

UCARE Research Products

In meat science and carcass anatomy, an often-debated topic is the methodology educators should follow for effective and efficient learning of carcass anatomy among students. Many traditional learning environments utilize monolithic methods for teaching anatomy that fail to engage students or pedagogically enhance their cognitive development to the fullest potential. Access is also limited because of the need for specialized facilities’ and equipment. We are interested in understanding and measuring the success of learning tools such as Virtual Reality (VR) and 3D Visualization in student learning. Our study’s results would be useful to indicate if student attitudes and student ...


Supplementation And Reproductive Strategies For Beef Females As Part Of A May-Calving Herd In The Nebraska Sandhills, Alicia Caitlin Lansford 2018 University of Nebraska-Lincoln

Supplementation And Reproductive Strategies For Beef Females As Part Of A May-Calving Herd In The Nebraska Sandhills, Alicia Caitlin Lansford

Theses and Dissertations in Animal Science

The objective of these 4 studies was to evaluate the effects of management decisions on reproductive performance of beef females. Experiment 1 evaluated the efficacy of a novel s.c. prostaglandin F2a injection on estrus synchronization and pregnancy success in yearling beef heifers. Heifers receiving a 2 mL s.c. injection of Lutalyse HighCon had similar estrus response and pregnancy rates compared to 5 mL Lutalyse i.m. within 2 different estrus synchronization programs. In experiment 2, May-calving heifers and primiparous cows were allotted to receive either no supplementation or supplement (0.45 or 0.91 kg/d ...


Effects Of Various Grazing Systems On Grazing And Subsequent Finishing Performance, L. W. Lomas, J. L. Moyer 2018 Kansas State University

Effects Of Various Grazing Systems On Grazing And Subsequent Finishing Performance, L. W. Lomas, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

MaxQ tall fescue, a wheat-bermudagrass double-crop system, and a wheat-crabgrass double-crop system have been three of the most promising grazing systems evaluated at the Kansas State University Southeast Agricultural Research Center in the past 20 years, but these systems have never been compared directly in the same study. The objective of this study was to compare grazing and subsequent finishing performance of stocker steers that grazed these three systems.


Evaluation Of Supplemental Energy Source For Grazing Stocker Cattle, L. W. Lomas, J. K. Farney, J. L. Moyer 2018 Kansas State University

Evaluation Of Supplemental Energy Source For Grazing Stocker Cattle, L. W. Lomas, J. K. Farney, J. L. Moyer

Kansas Agricultural Experiment Station Research Reports

Supplementation of grazing cattle is most economically feasible when cattle prices are high relative to the price of grain. Energy supplementation of grazing ruminants may reduce forage intake and digestibility, but energy supplementation at low levels (less than 0.4% bodyweight) has been shown to have little effect on forage intake when crude protein was not limiting. Several studies have evaluated the effect of supplementation on stocker cattle gains and forage utilization during the grazing phase, but few have evaluated the effects of supplementation during the grazing phase on subsequent finishing performance and carcass traits. This research seeks to obtain ...


Including Legumes In Bermudagrass Pastures, J. L. Moyer, L. W. Lomas 2018 Kansas State University

Including Legumes In Bermudagrass Pastures, J. L. Moyer, L. W. Lomas

Kansas Agricultural Experiment Station Research Reports

Bermudagrass is a productive forage species when intensively managed. However, it has periods of dormancy and requires proper management to maintain forage quality. Legumes in the bermudagrass sward could improve forage quality and reduce fertilizer usage; however, legumes are difficult to establish and maintain with the competitive grass. Clovers can maintain survival once established in bermudagrass sod and may be productive enough to substitute for some N fertilization. This study was designed to compare dry cow performance on a bermudagrass pasture system that included ladino and crimson clovers (Legume) vs. bermudagrass alone (Nitrogen).


In-Vitro Digestibilitry And Gas Production Of Wheat Middlings, Solvent Extracted Cottonseed Meal, Soyhulls, And Corn Gluten Feed And The Effects Of Monensin On In-Vitro Digestibility And Gas Production, Dustin W. DeVore 2018 Missouri State University

In-Vitro Digestibilitry And Gas Production Of Wheat Middlings, Solvent Extracted Cottonseed Meal, Soyhulls, And Corn Gluten Feed And The Effects Of Monensin On In-Vitro Digestibility And Gas Production, Dustin W. Devore

MSU Graduate Theses

This study was designed to study the in-vitro digestibility and in-vitro total gas production of corn gluten feed, wheat middlings, solvent extracted cottonseed meal, and soyhulls in multi parous steers. Evaluation of the effects of monensin on in-vitro digestibility and in-vitro total overall gas production of a commercially available complete feed was also studied Feedstuffs were ground through a Wiley mill to ensure uniform samples and were added to digestion jars in a completely randomized design. Rumen fluid was collected from a Bos taurus steer via a ruminal cannula. To ensure consistent digesta material the steer was fed a uniform ...


Alternative Feeding Strategies For Growing Cattle Grazing Endophyte-Infected Tall Fescue During The Summer, Kerri A. Johnson 2018 Missouri State University

Alternative Feeding Strategies For Growing Cattle Grazing Endophyte-Infected Tall Fescue During The Summer, Kerri A. Johnson

MSU Graduate Theses

Two experiments were conducted to determine animal performance of alternative feeding strategies to heifers grazing endophyte-infected tall fescue during summer months. In Experiment 1, 40 Limousin heifers (261± 40kg initial BW) were stratified by weight and assigned to either a spring harvested tall fescue silage diet or grazing endophyte-infected tall fescue pasture with grain supplement having either natural or artificial shade for 80 days. In Experiment 2, 40 Limousin heifers (277 ± 44kg initial BW) were stratified by weight and assigned to either a traditional grain supplement or feather-meal supplement (rumen bypass arginine supplement) with natural or artificial shade while grazing ...


The Influence Of Supplemental Zinc And Ractopamine Hydrochloride On Mineral And Nitrogen Retention Of Beef Steers, Remy Carmichael, Olivia Genther-Schroeder, Stephanie Hansen 2018 Iowa State University

The Influence Of Supplemental Zinc And Ractopamine Hydrochloride On Mineral And Nitrogen Retention Of Beef Steers, Remy Carmichael, Olivia Genther-Schroeder, Stephanie Hansen

Animal Industry Report

The objective of this study was to ascertain how ractopamine hydrochloride supplementation and Zn supplementation affects N retention and Zn absorption in beef steers. No interaction was detected between ractopamine hydrochloride supplementation and Zn supplementation (MIN x BA strategies). There was no effect of ractopamine hydrochloride inclusion on Zn absorption. However, there was an increase of Zn retention with increasing concentrations of supplemental Zn. Additionally, N retention was increased by supranutritional Zn supplementation and also by ractopamine supplementation. Increased N retention may help explain previously noted improvements in cattle performance when fed ractopamine hydrochloride and supranutritional concentrations of Zn.


Effects Of Extended-Release Eprinomectin On Replacement Heifer Performance And Reproductive Success, Claire Andresen, Patrick Gunn 2018 Iowa State University

Effects Of Extended-Release Eprinomectin On Replacement Heifer Performance And Reproductive Success, Claire Andresen, Patrick Gunn

Animal Industry Report

This study evaluated the effect of extended-release eprinomectin on production parameters and reproductive success of yearling fall replacement heifers. Heifers were treated with an ivermectin (CONV) or an injectable extended-release eprinomectin (EPR). There were no differences between treatments at initial body weight (BW). However, subsequent body weights taken 7 months and 12-months post-treatment demonstrated heavier body weight, greater overall weight gain and a greater average daily gain for heifers treated with EPR. Heifers treated with EPR had greater pregnancy rates to AI and greater overall pregnancy rates than CONV. Also, a greater proportion of EPR heifers calved in the first ...


Effect Of Varying Trace Mineral Supplementation Of Steers With Or Without Hormone Implants On Growth And Carcass Characteristics, Emma Niedermayer, Olivia Genther-Schroeder, Dan Loy, Stephanie Hansen 2018 Iowa State University

Effect Of Varying Trace Mineral Supplementation Of Steers With Or Without Hormone Implants On Growth And Carcass Characteristics, Emma Niedermayer, Olivia Genther-Schroeder, Dan Loy, Stephanie Hansen

Animal Industry Report

The utilization of hormone implants and the supplementation of trace minerals have become well adopted management strategies in the feedlot industry. When hormone implants increase rates of growth in feedlot cattle, this could increase the demand for trace minerals to support those rapid rates of growth. In this study, an aggressive implant strategy dramatically increased growth rates and HCW, without having negative effects on marbling score. It was also observed, regardless of hormone implant, trace mineral supplementation tended to increase overall ADG and steers supplemented at industry consultants recommended concentrations had a 33 lb increase in HCW compared to cattle ...


Discovery Of Functional Variants Remarkably Associated With Growth Traits In Several Us Beef Cattle Populations, Mahdi Saatchi 2018 American Simmental Association

Discovery Of Functional Variants Remarkably Associated With Growth Traits In Several Us Beef Cattle Populations, Mahdi Saatchi

Animal Industry Report

The objective of this study was to investigate the impact of some 96 putative functional variants on growth traits in beef cattle. Some 5,964 Simmental, 2,982 Gelbvieh and 2,871 Red Angus animals were genotyped and recorded for birth, weaning and yearling weights. Some functional variants in the HMGA2, NCAPG, ARRDC3, PLAG1 and ERGIC1 genes were among the markers significantly associated with remarkable impact on body weights. The most significant variant was rs109570900 encoding p.Ile442Met in NCAPG, where animals with GG compare to TT genotypes were on average 4.4 lb heavier at birth, 16.7 lb ...


Observations Regarding Depressed Cholinesterase In Beef Cattle After Feeding Contaminated Corn Silage, Garland Dahlke 2018 Iowa State University

Observations Regarding Depressed Cholinesterase In Beef Cattle After Feeding Contaminated Corn Silage, Garland Dahlke

Animal Industry Report

Beef cattle fed corn silage with an unidentified mycotoxin or possibly some other metabolite expressed a great decline in blood and brain cholinesterase activity. The presence of the ionophore in the ration appeared to make the depression much more severe initially and although blood cholinesterase levels did rebound somewhat after a period of time, brain cholinesterase levels did not recover to what would be considered normal even though the ionophore was removed from the ration.


Comparing Iowa 4-H Beef Carcass Programs With The 2016 National Beef Quality Audit Carcasses, Denise Schwab, Chris Clark, Beth Doran, Russ Euken, Dan Loy, Erika Lundy, Joe Sellers, Patrick Wall 2018 Iowa State University

Comparing Iowa 4-H Beef Carcass Programs With The 2016 National Beef Quality Audit Carcasses, Denise Schwab, Chris Clark, Beth Doran, Russ Euken, Dan Loy, Erika Lundy, Joe Sellers, Patrick Wall

Animal Industry Report

While the Iowa 4-H & FFA carcass contest cattle are not completely representative of all Iowa cattle, they can indicate trends for the Iowa cattle industry and represent the calves locally available for projects. With nearly 60% of these cattle receiving an $8/cwt premium, cattle feeders have the potential to improve net revenues by marketing cattle into a grid market.


Development Of A Crush Margin Calculator For Beef And Pork Markets, Dinesh Reddy Poddaturi, Garland Dahlke, Russ Euken, Lee Schulz 2018 Iowa State University

Development Of A Crush Margin Calculator For Beef And Pork Markets, Dinesh Reddy Poddaturi, Garland Dahlke, Russ Euken, Lee Schulz

Animal Industry Report

A convenient, web-based application was developed that utilizes Chicago Mercantile Exchange (CME) futures settlement price data to generate an expected margin. Futures price data is available for live cattle, feeder cattle, lean hogs, soybean meal, and corn. The prices of these commodities on the futures market can be hedged in advance of cash purchases or sales to reduce price risk or used to estimate potential margins when producing and selling fed cattle or market hogs.


Iowa Beef Center, Dan Loy, Beth Doran, Russ Euken, Denise Schwab, Chris Clark, Joe Sellers, Patrick Wall, Garland Dahlke, Sherry Hoyer, Erika Lundy, Lee Schulz, Grant Dewell 2018 Iowa State University

Iowa Beef Center, Dan Loy, Beth Doran, Russ Euken, Denise Schwab, Chris Clark, Joe Sellers, Patrick Wall, Garland Dahlke, Sherry Hoyer, Erika Lundy, Lee Schulz, Grant Dewell

Animal Industry Report

During 2016, IBC staff made 183 presentations to more than 13,700 participants, conducted 564 personal consultations, and over 4,100 phone or email consultations. The webinars and videos IBC produced were viewed more than 20,000 times, and the online software tools had 375,000 downloads. There were 180,000 website visitors and 3,500 social media contacts. IBC funded 4 mini grant projects investigating current industry questions including: Management effects on ergovaline content of stockpiled tall fescue for winter grazing • Grazing cover crops • Calving management on Iowa beef cattle farms • Corn silage characteristics on Iowa farms Iowa Beef ...


Digital Commons powered by bepress