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Print Grades Prime: A Quantitative Analysis Of Producer Communication Preferences Of U.S. Beef Breed Association Magazines Through The Lenses Of Uses, Gratifications, And Gatekeeping, Megan Underwood, Katherine J. Starzec, Nellie Hill-Sullins, R. L. Weaber 2024 Kansas State University

Print Grades Prime: A Quantitative Analysis Of Producer Communication Preferences Of U.S. Beef Breed Association Magazines Through The Lenses Of Uses, Gratifications, And Gatekeeping, Megan Underwood, Katherine J. Starzec, Nellie Hill-Sullins, R. L. Weaber

Journal of Applied Communications

The United States beef industry is a major stakeholder in national and international agriculture and is driven by technological innovations and beef producers in all 50 states. Beef cattle breed associations are essential to the success of the industry as they not only maintain breed pedigrees but also disseminate vital information to their members. The magazines of beef cattle breed associations are a primary source of communication for U.S. beef producers. Goals for this study were to determine what information beef producers use from their beef breed association magazines, what information they want to see more of in beef breed …


Effects Of Peri-Castration Pain Management Strategies On Feed And Water Intake, Performance, And Blood Cortisol Levels Of Weaned Beef Steers, Andrea K. Brandner, Cody L. Wright, Ana Clara B. Menezes 2024 South Dakota State University

Effects Of Peri-Castration Pain Management Strategies On Feed And Water Intake, Performance, And Blood Cortisol Levels Of Weaned Beef Steers, Andrea K. Brandner, Cody L. Wright, Ana Clara B. Menezes

Animal Science Research Report 2024

No abstract provided.


Influence Of Finishing Systems On Carcass Characteristics, Composition, And Fatty Acid Profile Of Bison Bulls, Clay J. Newton, Lydia M. O'Sullivan, Keith R. Underwood, Judson K. Grubbs, Christina E. Bakker, Kristi M. Cammack, Thu Dinh, Carter Kruse, Amanda D. Blair 2024 South Dakota State University

Influence Of Finishing Systems On Carcass Characteristics, Composition, And Fatty Acid Profile Of Bison Bulls, Clay J. Newton, Lydia M. O'Sullivan, Keith R. Underwood, Judson K. Grubbs, Christina E. Bakker, Kristi M. Cammack, Thu Dinh, Carter Kruse, Amanda D. Blair

Animal Science Research Report 2024

No abstract provided.


Utilization Of Camera Grading Technology For Bison Carcass Characteristics, Christina Bakker, Jessica Sparks, Keith Underwood, Kyle Grubbs, Amanda D. Blair 2024 South Dakota State University

Utilization Of Camera Grading Technology For Bison Carcass Characteristics, Christina Bakker, Jessica Sparks, Keith Underwood, Kyle Grubbs, Amanda D. Blair

Animal Science Research Report 2024

The objective of this study was to evaluate the ability of beef camera grading technology to assess characteristics of bison carcasses.


Photobiomodulation Of Bovine Oocytes During Maturation Increases Atp Content And Enhances Subsequent Embryonic Development, Kendall Richey 2024 Clemson University

Photobiomodulation Of Bovine Oocytes During Maturation Increases Atp Content And Enhances Subsequent Embryonic Development, Kendall Richey

All Theses

Bovine in-vitro production(IVP) of embryos is a growing field for producing offspring with desirable genetics in the cattle industries. While IVP is effective, oocyte cytoplasmic maturation is compromised, and bovine oocytes matured in-vitro have reduced metabolic activity than those matured in-vivo. Mitochondria are the central unit of oocyte metabolism, producing ATP through OXPHOS. Photobiomodulation is a light treatment reported to improve metabolic activity. In five experiments, we measured the effects of photobiomodulation treatment with red LED at 16-(L-16) and 20 h(L-20) of bovine oocyte in-vitro maturation on subsequent embryonic development, mitochondrial activity and nuclear progression. Bovine COCs were aspirated …


Artificial Insemination And Fetal Programming In Beef Production Systems, Dempster Christenson 2024 University of Nebraska-Lincoln

Artificial Insemination And Fetal Programming In Beef Production Systems, Dempster Christenson

Department of Animal Science: Dissertations, Theses, and Student Research

Pregnancy to artificial insemination and late gestation fetal programming of the next calf crop are central to genetic development, reproductive longevity, calf crop productivity, and efficiency of cow/calf ranching. The purposes of this research are to find methods to improve pregnancy rate to artificial insemination, the growth and reproductive health of pregnant heifers, and the productivity of their offspring. In the first of four studies we found that extending the period of progesterone administration in an estrus synchronization protocol did not significantly hasten estrus response or increase pregnancy rate to artificial insemination, but timing of estrus within the melengestrol acetate …


The Impact Of A Pgym Variant On Myophosphorylase Deficiency In Red Angus Composite Cattle And Changes In The Skeletal Muscle Transcriptome Due To The Intramuscular Administration Of Lidocaine In Wether Lambs, Mackenzie Christin Batt 2024 University of Nebraska-Lincoln

The Impact Of A Pgym Variant On Myophosphorylase Deficiency In Red Angus Composite Cattle And Changes In The Skeletal Muscle Transcriptome Due To The Intramuscular Administration Of Lidocaine In Wether Lambs, Mackenzie Christin Batt

School of Biological Sciences: Dissertations, Theses, and Student Research

Project 1 focused on eight calves in a Nebraska herd (composite Simmental, Red Angus, Gelbvieh) that displayed exercise intolerance during forced activity. Available sire pedigrees contained a paternal ancestor within 2-4 generations in all affected calves. Pedigrees of the calves’ dams were unavailable, however, the cows were ranch-raised and retained from prior breeding seasons, where bulls used for breeding occasionally had a common ancestor. Therefore, it was hypothesized that a de novo autosomal recessive variant was causative of exercise intolerance in these calves. A genome-wide association analysis followed by whole-genome sequencing led to the identification of a variant in the …


Bull Production: Breeding Soundness Exam And Expected Progeny Differences, Ethan Gilliam 2024 Utah State University

Bull Production: Breeding Soundness Exam And Expected Progeny Differences, Ethan Gilliam

All Current Publications

This fact sheet defines a breeding soundness exam (BSE) for a breeding bull and reviews the meaning of expected progeny differences (EPDs). Acronyms used and depended on by livestock producers are reviewed. Understanding the meaning of livestock acronyms is commonly overlooked. Highlights include how a producer makes financial decisions throughout the year in relation to their livestock.


Exploring Definitions Of Daily Enteric Methane Emission Phenotypes For Genetic Evaluations Using A Population Of Indoor-Fed Multi-Breed Growing Cattle With Feed Intake Data, Clodgah V. Ryan, Thierry Pabiou, Deirdre C. Purfield, Donagh P. Berry, Stephen Conroy, Craig P. Murphy, Ross Evans 2024 Irish Cattle Breeding Federation, Ballincollig, Co. Cork, Ireland; Department of Biological Sciences, Munster Technological University, Bishopstown, Ireland

Exploring Definitions Of Daily Enteric Methane Emission Phenotypes For Genetic Evaluations Using A Population Of Indoor-Fed Multi-Breed Growing Cattle With Feed Intake Data, Clodgah V. Ryan, Thierry Pabiou, Deirdre C. Purfield, Donagh P. Berry, Stephen Conroy, Craig P. Murphy, Ross Evans

Department of Biological Sciences Publications

Genetic selection has been identified as a promising approach for reducing enteric methane (CH4) emissions; a prerequisite for genetic evaluations; however, these are estimates of the necessary genetic parameters based on a population representative of where the genetic evaluations will be used. The objective of this study was, therefore, to derive genetic parameters for a series of definitions of CH4, carbon dioxide (CO2), and dry matter intake (DMI) as well as genetic correlations between CH4, CO2, and DMI in a bid to address the paucity of studies involving methane emissions …


Program Requirements For Beef Cattle Certified As Usda Organic, Carsten Loseke, Elliott James Dennis 2024 University of Nebraska-Lincoln

Program Requirements For Beef Cattle Certified As Usda Organic, Carsten Loseke, Elliott James Dennis

Cornhusker Economics

This document provides an overview of the use and production of the USDA Certified Organic program for the beef cattle industry, with an emphasis on the state of Nebraska. We detail what cattle qualify, feed requirements, medical and health standards of cattle, and premiums paid by consumers for USDA certified organic products. All information is taken from the Organic Foods Production Act Provisions available in the Federal Register.


Adding Value To Crop Production Systems By Integrating Forage Cover Crop Grazing, Robert B. Mitchell, Daren D. Redfearn, Kenneth P. Vogel, Terry J. Klopfenstein, Galen Erickson, P. Steven Baenziger, Bruce E. Anderson, Mary E. Drewnoski, Jay Parsons, Steven D. Masterson, Marty R. Schmer, Virginia L. Jin 2024 USDA, Agricultural Research Service

Adding Value To Crop Production Systems By Integrating Forage Cover Crop Grazing, Robert B. Mitchell, Daren D. Redfearn, Kenneth P. Vogel, Terry J. Klopfenstein, Galen Erickson, P. Steven Baenziger, Bruce E. Anderson, Mary E. Drewnoski, Jay Parsons, Steven D. Masterson, Marty R. Schmer, Virginia L. Jin

Department of Agronomy and Horticulture: Faculty Publications

In addition to their value as cereal grains, wheat (Triticum aestivum L.) and triticale (× Triticosecale Wittmack) are important cool-season annual forages and cover crops. Yearling steer (Bos taurus) performance was compared in the spring following autumn establishment as for age cover crops after soybean [Glycine max (L.) Merr.] grain harvest. Replicated pastures (0.4 ha) were no-till seeded in three consecutive years into soybean stubble in autumn, fertilized, and grazed the following spring near Ithaca, Nebraska, USA. Each pasture (n = 3) was continuously stocked in spring with four yearling steers (380 ± 38 kg) for …


Strategic Nutritional Interventions With Probiotics And Their Relationship To Performance, Feeding Behavior, And Reticulorumen Environment In Cows And Calves Under Subacute Ruminal Acidosis Risk, Gustavo Mazon Correa Alves 2024 University of Kentucky

Strategic Nutritional Interventions With Probiotics And Their Relationship To Performance, Feeding Behavior, And Reticulorumen Environment In Cows And Calves Under Subacute Ruminal Acidosis Risk, Gustavo Mazon Correa Alves

Theses and Dissertations--Animal and Food Sciences

Subacute ruminal acidosis (SARA) is a digestive disorder in ruminants characterized by extended periods of low reticulorumen pH. This digestive disorder is commonly observed in ruminants fed diets with elevated proportions of non-fibrous carbohydrates. This disorder has been vastly studied in adult dairy cattle and has been associated with losses in milk production, changes in feeding behavior, damage to the gastrointestinal tract, and premature culling. Although vastly studied in adult cattle, there is limited research on the effects of SARA in calves. SARA might be prevented by modifying the reticulorumen environment with probiotic supplements containing lactateutilizing bacteria such as Megasphaera …


Valuation Of Soybean Meal Versus Distillers Co-Products As A Protein Supplement For Finishing Beef Cattle: Effects On Growth Performance, Carcass Characteristics, And Efficiency Of Dietary Net Energy Utilization, Cassidy R. Ross 2024 South Dakota State University

Valuation Of Soybean Meal Versus Distillers Co-Products As A Protein Supplement For Finishing Beef Cattle: Effects On Growth Performance, Carcass Characteristics, And Efficiency Of Dietary Net Energy Utilization, Cassidy R. Ross

Electronic Theses and Dissertations

Two randomized complete block design experiments were conducted to: 1) examine the effects of soybean meal with or without additional soybean hulls in replacement of modified corn distillers grains plus (MDGS) solubles on growth performance efficiency of dietary net energy utilization and carcass traits responses in finishing beef steers, 2) determine if partial or complete replacement of dried distillers grains plus solubles (DDGS) with solvent-extracted soybean meal (SBM) in diets based upon high-moisture ensiled corn influences growth performance, efficiency of dietary net energy utilization, sera urea-N (SUN) concentrations, or carcass traits in finishing beef steers. Experiment 1 was a 118-d …


Greato+ Supplementation Leads To Greater Proportions Of Omega-3 Fatty Acids In The Small Intestines Of Holstein Steers, Ross L. Thorn, James S. Drouillard 2024 Kansas State University

Greato+ Supplementation Leads To Greater Proportions Of Omega-3 Fatty Acids In The Small Intestines Of Holstein Steers, Ross L. Thorn, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Objective:This study aimed to determine if supplementation of GreatO+, an extruded blend of flaxseed and microalgae (NBO3, Manhattan, KS), in Holstein steers would lead to greater amounts of fatty acids, particularly omega-3s, in the small intestines.

Study Description:This study utilized 12 cannulated Holstein steers assigned to two treatments: with or without supplementation of GreatO+as a source of omega-3 fatty acids. Two periods were utilized, consisting of a 15-day adaptation interval and a four-day collection interval. After the end of the collection period, each steer was transitioned to the other treatment for the second period. …


The Effects Of Seasonal Prescribed Burning On Flint Hills Dung Beetle (Scarabaeinae) Populations, Herman Griese, Andrea Salazar, Victoria Pickens, Cassandra Olds 2024 Kansas State University

The Effects Of Seasonal Prescribed Burning On Flint Hills Dung Beetle (Scarabaeinae) Populations, Herman Griese, Andrea Salazar, Victoria Pickens, Cassandra Olds

Kansas Agricultural Experiment Station Research Reports

Objective:This study aimed to determine if the season of prescribed burning impacted dung beetle communities on pastures grazed by cattle in the Flint Hills.

Study Description:Dung beetle populations at the Kansas State University Beef Stocker unit were sampled biweekly for three months over the summer grazing period to determine if beetle populations varied between spring, summer, or fall burned pastures.

Results:At least eight species of dung beetles were identified with a total of 8,646 dung beetles collected. Dung beetle populations were not different (P>0.05) between spring, summer, and fall burned pastures although peak beetle populations …


Long-Term Effects Of April, August, Or October Prescribed Fire On Yearling Stocker Cattle Performance And Native Rangeland Plant Composition In The Kansas Flint Hills, Zachary M. Duncan, Alan J. Tajchman, Jack Lemmon, William R. Hollenbeck, Dale A. Blasi, K. C. Olson 2024 Kansas State University

Long-Term Effects Of April, August, Or October Prescribed Fire On Yearling Stocker Cattle Performance And Native Rangeland Plant Composition In The Kansas Flint Hills, Zachary M. Duncan, Alan J. Tajchman, Jack Lemmon, William R. Hollenbeck, Dale A. Blasi, K. C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective:The objective of our experiment was to determine if prescribed fire applied in April, August, or October influenced stocker growth performance or plant community characteristics in the Kansas Flint Hills over a 6-year period.

Study Description:A total of 1,939 yearling stocker cattle were assigned to one of three prescribed-burn treatments: spring (April 11 ± 5.7 days), summer (August 25 ± 6.2 days or fall (October 2 ± 9.0 days) over a 5-year period. Calves were grazed from May to August for 90 days. Individual body weights were recorded at the start and end of the grazing season. Native …


Reducing Tick Populations Through Prescribed Burning, Andrea Salazar, Herman Griese, Victoria Pickens, Cassandra Olds 2024 Kansas State University

Reducing Tick Populations Through Prescribed Burning, Andrea Salazar, Herman Griese, Victoria Pickens, Cassandra Olds

Kansas Agricultural Experiment Station Research Reports

Objective:Explore the effect of prescribed fire on tick population dynamics in the Kansas Flint Hills.

Study Description:Ticks were collected from spring (April), summer (August), or fall (September) burned pastures as well as control, unburned areas. Burning had been carried out for four consecutive years prior to this study. Tick populations were sampled every other week from March to August using material dragging and dry ice bait sampling methods. Tick species, sex, and life stage were identified morphologically and the total numbers for each burn treatment were calculated.

The Bottom Line:Consecutive burning of grazing pasture could be considered …


Effects Of Dietary Energy Concentration And Feed Intake On Growth Performance Of Newly Received Growing Cattle Fed Diets Based On Corn And Corn Co-Products, Colton D. Weir, Zachary M. Duncan, William R. Hollenbeck, Sean P. Montgomery, Tyler J. Spore, Dale A. Blasi 2024 Kansas State University

Effects Of Dietary Energy Concentration And Feed Intake On Growth Performance Of Newly Received Growing Cattle Fed Diets Based On Corn And Corn Co-Products, Colton D. Weir, Zachary M. Duncan, William R. Hollenbeck, Sean P. Montgomery, Tyler J. Spore, Dale A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective:This study’s focus was to evaluate if feeding equal amounts of energy from a high-energy limit-fed diet has an effect on growth performance of growing beef cattle when compared to traditional high-roughagead libitumdiets.

Study Description:A total of 392 crossbred heifers were fed one of four experimental diets for a 70-day receiving period. Treatments included a high-roughage diet formulated to provide 45 Mcal of net energy for gain (NEg) per 100 lb of dry matter (DM) and fed forad libitumintake (AL) or a high-energy diet formulated to provide 60 Mcal of NEg …


Post-Weaning Feed Intake And Performance Of Bulls Developed In An Automated Feed Intake Management System, J. Wyatt L. Banks, Karol E. Fike, Jason M. Warner 2024 Kansas State University

Post-Weaning Feed Intake And Performance Of Bulls Developed In An Automated Feed Intake Management System, J. Wyatt L. Banks, Karol E. Fike, Jason M. Warner

Kansas Agricultural Experiment Station Research Reports

Objective:Our objectives were to compare expected and observed dry matter intake (DMI) and average daily gain (ADG) using modeled nutrient requirement equations, and to evaluate change in DMI over time of beef bull calves fed in an automated feed intake system.

Study Description:Feed intake and performance data from purebred Angus, Hereford, and Simmental bull calves across two calf crops [birth years 2021 (n = 40) and 2022 (n = 37)] were utilized for this analysis. Projected DMI and ADG were calculated for each group of bulls by year on an individual basis using the Growing Bull module of …


Comparing The Performance Of Cattle Castrated Using Different Techniques Upon Arrival At The Feedlot, Tyler Blackwood, Tyler J. Spore, Michael D. Kleinhenz, William R. Hollenbeck, Dale A. Blasi, A. J. Tarpoff 2024 Kansas State University

Comparing The Performance Of Cattle Castrated Using Different Techniques Upon Arrival At The Feedlot, Tyler Blackwood, Tyler J. Spore, Michael D. Kleinhenz, William R. Hollenbeck, Dale A. Blasi, A. J. Tarpoff

Kansas Agricultural Experiment Station Research Reports

Objective:To determine the least detrimental castration technique in terms of growth performance when castrating cattle upon entry to the feedlot.

Study Description:Intact bulls were sourced from the Southeastern U.S. and received at the Kansas State University Beef Stocker Unit. After backgrounding, 700-lb bulls were castrated using various techniques, including banding, banding with splitting of the distal scrotum, use of the Henderson Tool, and use of a burdizzo clamp. A group of intact bulls served as a negative control group. Weights were obtained at regular intervals throughout the 56-day study to quantify and compare growth performance.

Results:The day …


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