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Articles 1 - 30 of 44
Full-Text Articles in Beef Science
Sdsu Beef Day 2020 Complete Proceedings, Department Of Animal Science
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
Beefsd: Creating Learning Communities To Improve Management Capacity Of Beginning Beef Producers, Department Of Animal Science
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
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
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
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
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
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
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
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
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
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 …
Identification Of Genes Associated With Water Restriction Expressed In The Renal Cortex And Hypothalamus In Cattle, W. V. A. H. Chathurika, M. G. Gonda, Z. Mcdaniel, C. L. Wright, J. L. Gonzalez-Hernandez, J. Clapper
Identification Of Genes Associated With Water Restriction Expressed In The Renal Cortex And Hypothalamus In Cattle, W. V. A. H. Chathurika, M. G. Gonda, Z. Mcdaniel, C. L. Wright, J. L. Gonzalez-Hernandez, J. Clapper
SDSU Beef Day 2020 Summary Publication
The short-term objective of this study is to discover genes associated with water restriction expressed in the renal cortex and hypothalamus in beef calves. The long-term goal is to understand genes and pathways important for thirst response in cattle. This knowledge may lead to discovery of genetic variants associated with water intake. Identification of animals with genetic potential to grow and thrive under drought conditions would be an asset to beef producers and communities which rely on beef production for a large part of their livelihoods. Both selected tissue types are known to be involved in response to hypertonicity (e.g., …
Effects Of Increasing Doses Of Trenbolone Acetate And Estradiol On Finishing Phase Growth Performance And Carcass Trait Responses In Beef Steers, D. T. Smerchek, E. M. Buckhaus, K. D. Miller, Z. K. Smith
Effects Of Increasing Doses Of Trenbolone Acetate And Estradiol On Finishing Phase Growth Performance And Carcass Trait Responses In Beef Steers, D. T. Smerchek, E. M. Buckhaus, K. D. Miller, Z. K. Smith
SDSU Beef Day 2020 Summary Publication
Objective: Evaluate the effects of increasing doses of trenbolone acetate and estradiol as terminal implants on finishing phase growth performance and carcass trait responses in beef steers.
Effects Of Bedding Application On Growth Performance And Carcass Traits In Finishing Beef Steers During The Winter And Spring In Eastern South Dakota, D. T. Smerchek, E. M. Buckhaus, K. D. Miller, Z. K. Smith
Effects Of Bedding Application On Growth Performance And Carcass Traits In Finishing Beef Steers During The Winter And Spring In Eastern South Dakota, D. T. Smerchek, E. M. Buckhaus, K. D. Miller, Z. K. Smith
SDSU Beef Day 2020 Summary Publication
Objective: Evaluate the effects of bedding application on growth performance and carcass traits of finishing beef steers fed during the winter and spring in eastern South Dakota.
Heavy Winter Patch Grazing As An Alternative To Prescribed Burning On The Northern Great Plains, Jameson R. Brennan, Patricia Johnson, Ken Olson, Jennifer Lutze
Heavy Winter Patch Grazing As An Alternative To Prescribed Burning On The Northern Great Plains, Jameson R. Brennan, Patricia Johnson, Ken Olson, Jennifer Lutze
SDSU Beef Day 2020 Summary Publication
Among management systems intended to increase heterogeneity on the landscape, patch burn grazing (PBG) is by far the most prominent and researched method. Though prescribed burning is seen as a healthy disturbance in grassland ecosystems, many landowners in the Northern Great Plains have an aversion to fire. This is due to safety and liability concerns as well as concerns over forage losses and limitations of labor, equipment, and insurance to successfully carry out prescribed burns. Therefore, there is a critical need to evaluate alternative, non-fire management strategies that will encourage rangeland heterogeneity. A study was conducted in 2017-2018 at the …
Differences In Relative Abundance Of Gnrh-I And Gnrh-Ii In Granulosa Cells Of Bovine Antral Follicles At Specific Stages Of Follicular Development, Jerica J. J. Rich, Emmalee J. Northrop, Kaitlin M. Epperson, Saulo Menegatti Zoca, Stephanie D. Perkins, Russell F. Daly, Robert A. Cushman, George A. Perry
Differences In Relative Abundance Of Gnrh-I And Gnrh-Ii In Granulosa Cells Of Bovine Antral Follicles At Specific Stages Of Follicular Development, Jerica J. J. Rich, Emmalee J. Northrop, Kaitlin M. Epperson, Saulo Menegatti Zoca, Stephanie D. Perkins, Russell F. Daly, Robert A. Cushman, George A. Perry
SDSU Beef Day 2020 Summary Publication
Increased estradiol is the primary signal to initiate standing estrus, and cows that exhibit estrus prior to fixed-time artificial insemination have greater pregnancy rates than cows that do not. Therefore, understanding what factors may be present at the ovary that may regulate estradiol production is critical. A previous study reported that bovine follicles with greater follicular fluid concentrations of estradiol had decreased expression of GnRH-I and GnRH-II in granulosa cells (GC). The objective of this study was to characterize relative abundance of GnRH-I and -II mRNA within GC of follicles at specific stages of development. Beef cows were synchronized, and …
Use Of Sperm Proteins As A Putative Fertility Marker, Saulo Menegatti Zoca, Kailtlin M. Epperson, Jerica J. J. Rich, Taylor N. Andrews, Adalaide C. Kline, George A. Perry
Use Of Sperm Proteins As A Putative Fertility Marker, Saulo Menegatti Zoca, Kailtlin M. Epperson, Jerica J. J. Rich, Taylor N. Andrews, Adalaide C. Kline, George A. Perry
SDSU Beef Day 2020 Summary Publication
The objectives of this study were to characterize the variation and evaluate whether CD9 and SERPINA5 could be used as fertility markers in bovine sperm.
Identifying Consumer Preference For Beef Raised With Different Production Systems, M. J. Webb, D. P. Pendell, A. A. Harty, R. R. Salverson, K. R. Underwood, K. C. Olson, A. D. Blair
Identifying Consumer Preference For Beef Raised With Different Production Systems, M. J. Webb, D. P. Pendell, A. A. Harty, R. R. Salverson, K. R. Underwood, K. C. Olson, A. D. Blair
SDSU Beef Day 2020 Summary Publication
Objectives of this study were to evaluate meat quality characteristics and identify consumer palatability preferences for beef raised in different production systems.
Assessing Passive Transfer And Respiratory Pathogen Colonization Of Neonatal Beef Calves In A Confinement Operation, Russ Daly, Christian Rozeboom, Jonathan Sumption
Assessing Passive Transfer And Respiratory Pathogen Colonization Of Neonatal Beef Calves In A Confinement Operation, Russ Daly, Christian Rozeboom, Jonathan Sumption
SDSU Beef Day 2020 Summary Publication
1) Determine adequacy of passive transfer, and specifically Mannheimia hemolytica antibodies, in 2 subsets of neonatal calves.
2) Characterize presence and relative levels of respiratory pathogens – and changes over time – in nasal swabs in 2 cohorts of calves.
3) Use the results to determine whether changes in vaccine programs are warranted in this herd.
Effects Of Wheat Straw Bedding Usage On Hide Tag Scores During Winter And Spring In Finishing Feedlot Cattle Fed In Eastern South Dakota, K. D. Miller, D. T. Smerchek, Z. K. Smith
Effects Of Wheat Straw Bedding Usage On Hide Tag Scores During Winter And Spring In Finishing Feedlot Cattle Fed In Eastern South Dakota, K. D. Miller, D. T. Smerchek, Z. K. Smith
SDSU Beef Day 2020 Summary Publication
Objective: Evaluate hide tag scores of finishing cattle subjected to differing levels of bedding application during the winter and spring months in eastern South Dakota.
Influence Of Maternal Protein Restriction In Primiparous Heifers During Mid- And/Or Late Gestation On Progeny Feedlot Performance And Carcass Characteristics, J. J. Block, A. D. Blair, R. N. Funston, M. J. Webb, K. R. Underwood, M. G. Gonda, A. A. Harty, R. R. Salverson, K. C. Olson
Influence Of Maternal Protein Restriction In Primiparous Heifers During Mid- And/Or Late Gestation On Progeny Feedlot Performance And Carcass Characteristics, J. J. Block, A. D. Blair, R. N. Funston, M. J. Webb, K. R. Underwood, M. G. Gonda, A. A. Harty, R. R. Salverson, K. C. Olson
SDSU Beef Day 2020 Summary Publication
Maternal nutrient restriction in beef cows impacts developmental processes in the fetus that may influence lifetime performance. This study investigated impacts of metabolizable protein (MP) restriction in primiparous heifers during mid- and/or late-gestation on progeny feedlot performance and carcass characteristics.
Fecal Near Infrared Reflectance Spectroscopy (Nirs) And The Nutrition Balance Analyzer (Nutbal) Case Study In South Dakota, A. A. Harty, K. C. Olson
Fecal Near Infrared Reflectance Spectroscopy (Nirs) And The Nutrition Balance Analyzer (Nutbal) Case Study In South Dakota, A. A. Harty, K. C. Olson
SDSU Beef Day 2020 Summary Publication
The objective of this study was to compare fecal near infrared reflectance spectroscopy (NIRS) and the nutrition balance analyzer (NUTBAL) results with diet samples and cattle performance to determine if fecal NIRS and NUTBAL can accurately predict forage quality and cattle performance in South Dakota.
Use Of Pregnancy Associated Glycoproteins To Determine Fetal Age Throughout Gestation, Adalaide C. Kline, Kaitlin M. Epperson, Jerica J. J. Rich, Saulo Menegatti Zoca, Taylor N. Andrews, Jim R. Rhoades, George A. Perry
Use Of Pregnancy Associated Glycoproteins To Determine Fetal Age Throughout Gestation, Adalaide C. Kline, Kaitlin M. Epperson, Jerica J. J. Rich, Saulo Menegatti Zoca, Taylor N. Andrews, Jim R. Rhoades, George A. Perry
SDSU Beef Day 2020 Summary Publication
The objective of the current study was to determine if a commercially available blood pregnancy test could be modified to detect differences in pregnancy-associated glycoprotein (PAG) concentrations that would be indicative of stage of pregnancy or fetal age.
Comparison Of Winter Cow Feeding Strategies On Offspring Performance And Meat Quality, E. Gubbels, K. Olson, J. Block, Z. Smith, R. Salverson, A. Harty, W. Rusche, J. Grubbs, K. Underwood, C. Wright, C. Schauer, D. Stecher, D. Drolc, A. Blair
Comparison Of Winter Cow Feeding Strategies On Offspring Performance And Meat Quality, E. Gubbels, K. Olson, J. Block, Z. Smith, R. Salverson, A. Harty, W. Rusche, J. Grubbs, K. Underwood, C. Wright, C. Schauer, D. Stecher, D. Drolc, A. Blair
SDSU Beef Day 2020 Summary Publication
The objective of this study was to investigate the effects of maternal prepartum dietary energy source (forage vs. concentrate) during mid- and late-gestation on offspring growth performance, carcass characteristics and meat quality.
Influence Of Maternal Protein Restriction In Primiparous Heifers During Mid- And/Or Late-Gestation On Meat Quality And Fatty Acid Profile Of Progeny, M. J. Webb, J. J. Block, R. N. Funston, K. R. Underwood, J. F. Legako, A. A. Harty, R. R. Salverson, K. C. Olson, A. D. Blair
Influence Of Maternal Protein Restriction In Primiparous Heifers During Mid- And/Or Late-Gestation On Meat Quality And Fatty Acid Profile Of Progeny, M. J. Webb, J. J. Block, R. N. Funston, K. R. Underwood, J. F. Legako, A. A. Harty, R. R. Salverson, K. C. Olson, A. D. Blair
SDSU Beef Day 2020 Summary Publication
The objective of this study was to evaluate the influence of metabolizable protein (MP) restriction in mid- and/or late-gestation on meat quality, fatty acid profile, and carcass composition of progeny.
Classifying Livestock Grazing Behavior With The Use Of A Low Cost Gps And Accelerometer, Jameson Brennan, Ken Olson, Patricia Johnson, Janna Block, Chris Schauer
Classifying Livestock Grazing Behavior With The Use Of A Low Cost Gps And Accelerometer, Jameson Brennan, Ken Olson, Patricia Johnson, Janna Block, Chris Schauer
SDSU Beef Day 2020 Summary Publication
The ability to remotely track livestock through the use of GPS technology has tremendous potential to study livestock use patterns on the landscape. The use of high frequency accelerometers may give researchers and managers the ability to accurately partition GPS points into differing behaviors, giving further insight into livestock grazing selection, pasture use, and changes in forage preference through time. The objectives of this study were to 1) develop a classification algorithm to discriminate between graze and non-graze behaviors using a combination of metrics derived from a high frequency accelerometer motion sensor and a GPS data logger and 2) assess …
The Interactions Of Change In Nutrition On Uterine Environment And Cholesterol Concentrations In Beef Cattle, Taylor N. Andrew, Kaitlin M. Epperson, Jerica J. Rich, Saulo Menegatti Zorca, Abigail L. Zezeski, Thomas W. Geary, Rhea D. Lawrence, Julie A. Walker, George A. Perry
The Interactions Of Change In Nutrition On Uterine Environment And Cholesterol Concentrations In Beef Cattle, Taylor N. Andrew, Kaitlin M. Epperson, Jerica J. Rich, Saulo Menegatti Zorca, Abigail L. Zezeski, Thomas W. Geary, Rhea D. Lawrence, Julie A. Walker, George A. Perry
SDSU Beef Day 2020 Summary Publication
The objective of this study was to evaluate the impact of nutritional changes prior to and after artificial insemination (AI) on uterine environment and plasma cholesterol concentrations.
Influence Of Winter Cow Feeding Strategies On Cow Response, E. Gubbels, K. Olson, J. Block, Z. Smith, R. Salverson, A. Harty, W. Rusche, J. Grubbs, K. Underwood, C. Wright, C. Schauer, D. Stecher, D. Drolc, A. Blair
Influence Of Winter Cow Feeding Strategies On Cow Response, E. Gubbels, K. Olson, J. Block, Z. Smith, R. Salverson, A. Harty, W. Rusche, J. Grubbs, K. Underwood, C. Wright, C. Schauer, D. Stecher, D. Drolc, A. Blair
SDSU Beef Day 2020 Summary Publication
The objective of this study was to investigate the effects of the primary maternal prepartum dietary energy source (forage vs. concentrate) during mid- and late-gestation on dam body weight (BW), body condition score (BCS), pregnancy rate, and economic responses.
Effect Of Estrous Synchronization With Natural Service Or Fixed-Timed Artificial Insemination With Conventional Or Gender-Skewed Semen In Beef Females, J. A. Walker, J. J. J. Rich, G. A. Perry
Effect Of Estrous Synchronization With Natural Service Or Fixed-Timed Artificial Insemination With Conventional Or Gender-Skewed Semen In Beef Females, J. A. Walker, J. J. J. Rich, G. A. Perry
SDSU Beef Day 2020 Summary Publication
The objective of this study was to evaluate estrous synchronization and/or artificial insemination (AI) with conventional (CON) or gender-skewed (SEXED) semen on calving distribution.
Investigation On The Use Of A Flir (Forward Looking Infrared) Camera To Detect Relationships Between Internal And Surface Temperatures Of Beef Carcasses During Chilling, L. M. Hite, A. D. Blair, K. R. Underwood, J. K. Grubbs
Investigation On The Use Of A Flir (Forward Looking Infrared) Camera To Detect Relationships Between Internal And Surface Temperatures Of Beef Carcasses During Chilling, L. M. Hite, A. D. Blair, K. R. Underwood, J. K. Grubbs
SDSU Beef Day 2020 Summary Publication
The objective of this study was to collect preliminary data on the efficacy of using thermal imaging technology as a means to assess beef carcass chilling.