Effect Of Inclusion Rate Of Silage With Or Without The Presence Of Alpha-Amylase On Feedlot Performance, Carcass Characteristics, And Efficiency Measures,
2020
South Dakota State University
Effect Of Inclusion Rate Of Silage With Or Without The Presence Of Alpha-Amylase On Feedlot Performance, Carcass Characteristics, And Efficiency Measures, W. C. Rusche, J. A. Walker, Z. K. Smith
SDSU Beef Day 2020 Summary Publication
The experimental objective was to determine the interactions of silage variety and inclusion level in cattle finishing diets on cattle performance and agronomic returns to cropland when fed to beef cattle.
Influence Of Maternal Protein Restriction In Primiparous Heifers During Mid- And/Or Late-Gestation On Dam And Suckling Calf Performance,
2020
South Dakota State University
Influence Of Maternal Protein Restriction In Primiparous Heifers During Mid- And/Or Late-Gestation On Dam And Suckling Calf Performance, J. J. Block, A. D. Blair, R. N. Funston, K. R. Underwood, M. G. Gonda, A. A. Harty, R. R. Salverson, K. C. Olson
SDSU Beef Day 2020 Summary Publication
Nutrient status in gestating beef cows has been shown to impact performance of the dam and offspring; however, most research has focused on energy or a total diet restriction and a single period of gestation. The objective of this study was to evaluate the effects of maternal metabolizable protein (MP) restriction in primiparous heifers during mid- and/or late gestation on dam and suckling calf performance through weaning.
Mineral Nutrition For Beef Cattle – Extension Program,
2020
South Dakota State University
Mineral Nutrition For Beef Cattle – Extension Program, Adele Harty
SDSU Beef Day 2020 Summary Publication
Objective: Provide educational resources and support to producers to assist them in improving their cattle mineral program and subsequent cattle health and nutrition.
Influence Of Beef Production System On Calpain-1 Autolysis And Troponin-T Degradation,
2020
South Dakota State University
Influence Of Beef Production System On Calpain-1 Autolysis And Troponin-T Degradation, L. G. Johnson, J. K. Grubbs, K. R. Underwood, M. J. Webb, A. D. Blair
SDSU Beef Day 2020 Summary Publication
The objective of this study was to determine the impact beef production systems utilizing different levels of growth promotant technology on calpain-1 autolysis and troponin-T degradation, which are measures of tenderness.
Internal Temperature Decline Rate In Beef Primals Is Reduced In Heavier Carcasses,
2020
South Dakota State University
Internal Temperature Decline Rate In Beef Primals Is Reduced In Heavier Carcasses, S. R. Egolf, L. M. Hite, A. C. Egolf, C. E. Bakker, A. D. Blair, J. K. Grubbs, K. R. Underwood
SDSU Beef Day 2020 Summary Publication
The objective of this study was to determine the influence of increasing beef hot carcass weights on internal temperature decline during chilling.
Estimating The Effects Weather, Dry Matter Intake, And Body Weight On Daily Water Intake In Weaned Calves,
2020
South Dakota State University
Estimating The Effects Weather, Dry Matter Intake, And Body Weight On Daily Water Intake In Weaned Calves, Z. S. Mcdaniel, M. G. Gonda, C. L. Wright
SDSU Beef Day 2020 Summary Publication
Water is an essential nutrient and is required for growth, metabolism, lactation, and reproduction. However, water requirements for beef cattle have not been studied extensively since the 1950’s. The genetic potential for beef cattle has changed considerably since then. With the change in genetics, beef producers have observed increases in average daily gain and final body weight. The need for updated water requirements for beef cattle has also been exacerbated by global climate variability, drought conditions, and the need for efficient use of water resources. Given the increased productivity of cattle today relative to those of decades ago, increased water …
Sdsu Beef 2020 Increases Beef Industry Knowledge For Participants,
2020
South Dakota State University
Sdsu Beef 2020 Increases Beef Industry Knowledge For Participants, C. Bakker, K. Underwood, J. K. Grubbs, J. Walker, C. Wright, K. Olson, W. Rusche, A. Blair
SDSU Beef Day 2020 Summary Publication
The objective of this study was to evaluate the effectiveness of the SDSU Beef 2020 program on increasing participant knowledge and impacting production practices. Unlike the pork or poultry industries, the US beef industry is not vertically integrated, and as a result the beef supply is managed by producers in a variety of roles. While these producers are knowledgeable about their specific sector, some may not be as familiar with the other aspects of beef production. South Dakota State University hosts an Extension program entitled Beef 2020 with the goal of bridging this knowledge gap.
Influence Of Bovine Viral Diarrhea Virus Infection On Artificial Insemination Conception And Breeding Season Pregnancy Success In Vaccinated Beef Herds,
2020
South Dakota State University
Influence Of Bovine Viral Diarrhea Virus Infection On Artificial Insemination Conception And Breeding Season Pregnancy Success In Vaccinated Beef Herds, Kaitlin M. Epperson, Jerica J.J. Rich, Saulo Menegatti Zoca, Stephanie D. Perkins, Emmalee J. Northrop, Russell F. Daly, Julie A. Walker, Jim R. Rhoades, George A. Perry
SDSU Beef Day 2020 Summary Publication
Bovine Viral Diarrhea Virus (BVDV) causes reproductive economic losses in cattle. The objective of this study was to evaluate the influence of BVDV infection on reproductive success. Vaccinated cows (n = 370) and heifers (n = 528) from nine different herds were synchronized using the 7-day CO-Synch + CIDR protocol and were bred using fixed-time artificial insemination (FTAI). On d 28 following insemination, blood samples were collected and pregnancy status was determined. Non-pregnant animals were resynchronized and FTAI occurred a second time. In six herds, bulls were comingled with females beginning 10-15 d after the second AI. Final pregnancy status …
Grazing Behavior, Forage Quality, And Intake Rates Of Livestock Grazing Pastures Occupied By Prairie Dogs,
2020
South Dakota State University
Grazing Behavior, Forage Quality, And Intake Rates Of Livestock Grazing Pastures Occupied By Prairie Dogs, Jameson R. Brennan, Ken Olson, Patricia Johnson, Janna Block, Chris Schauer
SDSU Beef Day 2020 Summary Publication
Prairie dogs can reduce the carrying capacity on rangelands by up to 50% through direct consumption of vegetation and by clipping plants to improve predator detection. Studies have shown that forage quality and digestibility are greater on prairie dog towns than off-town, however research is lacking that quantifies rates of forage and nutrition intake by cattle grazing pastures occupied by prairie dogs. The objectives of this study were to 1) evaluate relationships between on- and off-town plant communities and cattle grazing locations to identify trends in livestock grazing behavior throughout the growing season, 2) evaluate diet nutrient composition and intake …
Effects Of Feeding Brassica Mixture Cover Crops During Backgrounding On Carcass Traits And Fresh Meat Quality,
2020
South Dakota State University
Effects Of Feeding Brassica Mixture Cover Crops During Backgrounding On Carcass Traits And Fresh Meat Quality, C. E. Bakker, A. D. Blair, J. K. Grubbs, C. W. Wright, D. W. Brake, A. J. Smart, K. R. Underwood
SDSU Beef Day 2020 Summary Publication
Objective: Determine effects of feeding brassica-based cover crops to cattle during backgrounding on carcass characteristics and tenderness, flavor, and juiciness of longissimus dorsi steaks.
Performance, Carcass Characteristics, And Life Cycle Assessment Of Cattle Grown Utilizing Different Combinations Of Growth Promoting Technologies,
2020
South Dakota State University
Performance, Carcass Characteristics, And Life Cycle Assessment Of Cattle Grown Utilizing Different Combinations Of Growth Promoting Technologies, M. J. Webb, J. J. Block, A. A. Harty, R. R. Salverson, R. F. Daly, J. R. Yeager, K. R. Underwood, R. N. Funston, D. P. Pendell, C. A. Rotz, K. C. Olson, A. D. Blair
SDSU Beef Day 2020 Summary Publication
The objective of this study was to determine the impact of different combinations of growth promoting technologies on live animal performance, carcass characteristics, and environmental outcomes.
Effects Of Low-Stress Weaning On Calf Growth Performance And Carcass Characteristics,
2020
South Dakota State University
Effects Of Low-Stress Weaning On Calf Growth Performance And Carcass Characteristics, E. R. Gubbels, R. R. Salverson, K. M. Cammack, J. K. Grubbs, K. R. Underwood, K. C. Olson, A. D. Blair
SDSU Beef Day 2020 Summary Publication
The objective of this study was to compare the influence of two low-stress weaning methods with conventional weaning on post-weaning performance and carcass characteristics of beef steers.
Low Voltage Electrical Stimulation Of Beef Carcasses Slows Carcass Chilling Rate And Improves Steak Color,
2020
South Dakota State University
Low Voltage Electrical Stimulation Of Beef Carcasses Slows Carcass Chilling Rate And Improves Steak Color, C. E. Bakker, K. R. Underwood, J. K. Grubbs, A. D. Blair
SDSU Beef Day 2020 Summary Publication
The objective of this study was to evaluate the influence of two levels of low voltage electrical stimulation (ES) on temperature decline, pH, and meat quality.
Integrated Management Of Aphis Craccivora In Cowpea Using Intercropping And Entomopathogenic Fungi Under Field Conditions,
2020
International Centre of Insect Physiology and Ecology Nairobi
Integrated Management Of Aphis Craccivora In Cowpea Using Intercropping And Entomopathogenic Fungi Under Field Conditions, Allan Mweke, Komivi Senyo Akutse, Christian Ulrichs, Komi Kouma Mokpokpo Fiaboe, Nguya Kalemba Maniania, Sunday Ekesi
All Peer-Reviewed Publications
Cowpea aphid, Aphis craccivora, is a major cowpea pest. Cowpea–cereal intercrop alone does not effectively manage the pest. Use of pesticides in intercrop leads to health and environmental risks. Fungal-based biopesticides offer a better option because they are environment-and consumer-friendly. This study assessed the combined effect of Metarhizium anisopliae ICIPE 62 and cowpea–maize intercrop against A. craccivora under six treatments: (1) untreated cowpea monocrop, (2) untreated cowpea–maize intercrop, (3) cowpea monocrop + ICIPE 62, (4) cowpea–maize intercrop + ICIPE 62, (5) cowpea monocrop + Duduthrin insecticide, and (6) cowpea–maize intercrop + Duduthrin during three seasons (long rainy/cold and dry/short rainy). …
Association Of Single Nucleotide Polymorphisms In Bovine Heat Shock Protein 70, Cytochrome P450, Lactate Dehydrogenase, Interleukin 8 Receptor, And Melatonin Receptor 1a With Hoof And Udder Traits In Beef Cows,
2020
University of Arkansas, Fayetteville
Association Of Single Nucleotide Polymorphisms In Bovine Heat Shock Protein 70, Cytochrome P450, Lactate Dehydrogenase, Interleukin 8 Receptor, And Melatonin Receptor 1a With Hoof And Udder Traits In Beef Cows, Maryrose Warren
Animal Science Undergraduate Honors Theses
Hoof and udder conformation are important to the longevity and productivity of beef cattle. Selection for hoof and udder quality reduces the incidence of lameness and udder disease to improve animal welfare. Genetic selection is an effective means of improving traits such as these, especially through the use of single nucleotide polymorphism (SNP) genotyping to identify indicator traits. This study used genotype data and hoof and udder scores from previous research to determine if there is significant effect between polymorphisms of heat shock protein 70 (Hsp70), cytochrome P450 (CYP450), interleukin-8 receptor (IL8), lactate dehydrogenase (LDH), and melatonin receptor 1A (MTNR1A), …
Impact Of Phosphorus Intake On Beef Heifer Growth Performance And Conception Rates,
2020
University of Arkansas, Fayetteville
Impact Of Phosphorus Intake On Beef Heifer Growth Performance And Conception Rates, Hailey Hilfiker
Animal Science Undergraduate Honors Theses
This study aims to examine the effects of phosphorus intake on beef heifer growth performance and conception rates. In Northwest Arkansas, there has been an increase in phosphorus concentrations in soil where livestock manures have been repeatedly applied. Consequently, forages grown on soils high in phosphorus tend to contain high amounts of the mineral itself. This has led many to question whether it is necessary to supplement phosphorus in areas where concentrations may be higher. In this study, crossbred Angus heifers (n = 72), approximately 30 days after weaning, were stratified by body weight (average initial weight 251 ± 3.9 …
Surveillance Of Anaplasma Marginale In Arkansas Beef Cattle Herds,
2020
University of Arkansas, Fayetteville
Surveillance Of Anaplasma Marginale In Arkansas Beef Cattle Herds, Gabriel Apple
Animal Science Undergraduate Honors Theses
Anaplasmosis is an economically devastating disease in cattle that is caused by the rickettsial pathogen Anaplasma marginale. It is estimated that this parasitic bacterium causes over $300 million in expenses for the U.S. cattle industry annually. In Arkansas, the beef cattle industry is the fifth largest agricultural commodity in the state, thus necessitating a better understanding of this disease along with its prevalence. In this study, both polymerase chain reaction (PCR) and competitive enzyme-linked immunosorbent assay (ELISA) tests were used to determine the prevalence of A. marginale infection in Arkansas beef cattle on pasture in the six commonly known geographical …
The Efficacy Of Extended-Release Eprinomectin For The Reduction Of Horn Flies, Face Flies, And Fecal Egg Counts Of Parasitic Nematodes In Replacement Beef Heifers,
2020
University of Arkansas, Fayetteville
The Efficacy Of Extended-Release Eprinomectin For The Reduction Of Horn Flies, Face Flies, And Fecal Egg Counts Of Parasitic Nematodes In Replacement Beef Heifers, Sophia F. Landers
Animal Science Undergraduate Honors Theses
The purpose of this study was to evaluate the efficacy of extended-release eprinomectin against horn flies, face flies, and fecal egg counts of parasitic nematodes in crossbreed replacement beef heifers. Fifty-four heifers were randomly placed into three treatment groups (N=18 heifers/treatment). Group 1 was administered the labeled dosage of extended-release eprinomectin on day 0. Group 2 acted as the negative control. Group 3 received the anthelmintic injection once a quarter of the heifers in the group reached the threshold treatment level for horn flies (N=200 flies/animal; day 41). Nematode infections were measured via fecal egg counts while horn and face …
Effect Of Zelnate Administered As A Metaphylactic Upon Initial Processing Of High-Risk, Newly Received Beef Calves On Performance And Morbidity,
2020
University of Arkansas, Fayetteville
Effect Of Zelnate Administered As A Metaphylactic Upon Initial Processing Of High-Risk, Newly Received Beef Calves On Performance And Morbidity, Brady Martin
Animal Science Undergraduate Honors Theses
Bovine Respiratory Disease (BRD) is the most prominent and costly ailment in the stocker cattle industry today, and its prevalence has not been diminished in the last thirty years. Therefore, the objective of this study was to investigate the effects of Zelnate, a DNA immunostimulant, administered upon arrival to calves (n = 261; BW 253 ± 4.0 kg), on morbidity/mortality, performance and producer costs. Crossbred male beef calves were acquired and transported to the University of Arkansas stocker unit for a 42-d backgrounding period. Calves were allocated into treatment groups: 1) Zelnate, DNA immunostimulant administered or 2) Control, in which …
Optimal Calving Time For Beef Cows In Southwest Missouri,
2020
Missouri State University
Optimal Calving Time For Beef Cows In Southwest Missouri, Briana Rose Verploeg
Graduate Theses/Dissertations
The purpose of this study is to determine if a optimal time of year exists for beef producers to have cows give birth in southwest Missouri for maximal net returns from calf sales and increased cow reproductive performance. To make this determination, data were collected which included year-round forage nutritive value, calf pre-weaning growth, cow energy efficiency and reproductive performance, and income and cost values. Cow and calf field data were gathered for the 2014-2018 production years at Missouri State University’s Leo Journagan Ranch. Monthly forage samples were collected from study cow pastures from 2016 through 2018. Calf, cull cow, …
