Use Of Pregnancy Associated Glycoproteins To Determine Fetal Age Throughout Gestation In Cattle,
2021
South Dakota State University
Use Of Pregnancy Associated Glycoproteins To Determine Fetal Age Throughout Gestation In Cattle, Adalaide C. Kline, Kaitlin M. Epperson, Jerica J.J. Rich, Saulo Menegatti Zoca, Taylor N. Andrews, Lacey K. Quail, Jim R. Rhoades, George A. Perry
SDSU Beef Day 2021 Summary Publication
Objective
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 to indicate stage of pregnancy or fetal age in cattle.
Study Description
Previously identified pregnant females were grouped by age (pre-primiparous or multiparous). Blood samples were collected between day 27 and 190 of pregnancy (n = 176 from pre-primiparous and n = 240 from multiparous) and serum was tested in duplicate using a commercially available blood pregnancy test, IDEXX Alertys Pregnancy Test. Procedures were adapted to allow concentrations to fall within the …
The Presence Of Persistent Bovine Viral Diarrhea Virus Infection And A Novel Bosavirus In A Bison Herd,
2021
South Dakota State University
The Presence Of Persistent Bovine Viral Diarrhea Virus Infection And A Novel Bosavirus In A Bison Herd, Ben M. Hause, Julia F. Ridpath, Angela E. Pillatzki, Tom Bragg, Christopher C.L. Chase
SDSU Beef Day 2021 Summary Publication
Objective
Bovine viral diarrhea virus (BVDV) is a significant pathogen of cattle, leading to losses due to reproductive failure, respiratory disease and immune dysregulation. An investigation was conducted in an American bison (Bison bison) herd dealing with reproductive issues in 2018-2019 calving season to determine likely cause of the losses.
Prevalence Of Bovine Viral Diarrhea Virus Subspecies Among Persistently Infected Samples From Cattle In The United States,
2021
South Dakota State University
Prevalence Of Bovine Viral Diarrhea Virus Subspecies Among Persistently Infected Samples From Cattle In The United States, Jessie Vallejo, Travis Clement, Matthew Dammen, Christopher C.L. Chase
SDSU Beef Day 2021 Summary Publication
Objective:
The focus of this survey was to determine the prevalence of BVDV subspecies in the United States.
Comparison Of Winter Cow Feeding Strategies On Offspring Carcass Characteristics And Meat Quality,
2021
South Dakota State University
Comparison Of Winter Cow Feeding Strategies On Offspring Carcass Characteristics And Meat Quality, Erin Gubbels, Christopher Schauer, Don Stecher, Donny Drolc, Robin Salverson, Adele Harty, Warren Rusche, Cody Wright, Kristi Cammack, Zachary Smith, J. Kyle Grubbs, Keith Underwood, Janna Block, Kenneth Olson, Amanda Blair
SDSU Beef Day 2021 Summary Publication
Objective
The objective of this research was to investigate effects of maternal prepartum dietary energy source (forage vs. concentrate) during mid and late gestation on carcass composition, and meat quality of offspring.
Study Description
Angus-based cows from 2 sources [n = 129 from SDSU (Experiment 1) and n = 70 from North Dakota State University (Experiment 2)] were stratified by body weight and age and placed into two treatment groups at a drylot facility during mid- and late-gestation: Concentrate (dams fed a concentrate-based diet) or Forage (dams fed a forage-based diet). Calves were finished and carcass data was collected. Striploins …
Influence Of Beef Carcass Chilling Rate On Steak Case Life And Quality Traits,
2021
South Dakota State University
Influence Of Beef Carcass Chilling Rate On Steak Case Life And Quality Traits, Trevor C. Dehaan, Amanda D. Blair, Judson K. Grubbs, Keith R. Underwood
SDSU Beef Day 2021 Summary Publication
Objective
To determine if beef carcass weight influences chilling rate, pH decline, beef color, case life and tenderness of steaks from the round, loin, rib and chuck.
Metal-Organic Framework-Based Sensor For Bacterial Trehalose In Beef Products,
2021
South Dakota State University
Metal-Organic Framework-Based Sensor For Bacterial Trehalose In Beef Products, Matthew Hummel, Hongxing Jia, Ailin Guo, Abdullah Maruf, Shun Lu, Wei He, Yue Zhou, Zhengrong Gu
SDSU Beef Day 2021 Summary Publication
Objective
The objective is to detect trehalose from pathogenic bacteria using an electrochemical sensor based on alkali earth metal-organic frameworks (AE-MOFS).
An Environmental Assessment Of Cattle Manure And Urea Fertilizer Treatments For Corn Production In The Northern Great Plains,
2021
United States Department of Agriculture
An Environmental Assessment Of Cattle Manure And Urea Fertilizer Treatments For Corn Production In The Northern Great Plains, C. Alan Rotz, Senorpe Asem-Hiablie, Erin Cortus, Mindy J. Spiehs, Shafiqur Rahman, Anne Stoner
Roman L. Hruska U.S. Meat Animal Research Center: Reports
Nitrogen (N), phosphorus (P), and carbon (C) emissions from livestock systems have become important regional, national, and international concerns. Our objective was to use process-level simulation to explore differences among manure and inorganic fertilizer treatments in a corn production system used to feed finishing cattle in the Northern Great Plains region of the U.S. Our analysis included model assessment, simulation to compare treatments under recent climate, and comparisons using projected midcentury climate. The Integrated Farm System Model was evaluated in representing the performance and nutrient losses of corn production using cattle manure without bedding, manure with bedding, urea, and no …
Use Of Bedding Materials In Beef Bedded Manure Packs In Hot And Cool Ambient Temperatures: Effects On Ammonia, Hydrogen Sulfide, And Greenhouse Gas Emissions,
2021
University of Minnesota Twin Cities
Use Of Bedding Materials In Beef Bedded Manure Packs In Hot And Cool Ambient Temperatures: Effects On Ammonia, Hydrogen Sulfide, And Greenhouse Gas Emissions, Jeff P. Jaderborg, Mindy J. Spiehs, Bryan L. Woodbury, Alfredo Dicostanzo, David B. Parker
Roman L. Hruska U.S. Meat Animal Research Center: Reports
Throughout the Upper Midwest, producers have observed increased land and fertilizer prices, resulting in increased popularity of confinement feeding facilities such as mono-slope and hoop barns with bedded packs. Environmental and public pressure has been placed on the agriculture community to reduce ammonia (NH3), hydrogen sulfide (H2S), and greenhouse gas (GHG) emissions from concentrated animal feeding operations (CAFOs). This study was conducted to determine the effects of bedding material (corn stover (CS), bean stover (BS), wheat straw (WS), or pine wood chips (PC)) and ambient temperature (15°C (COOL) or 30°C (HOT)) on NH3, CH4, CO2, N2O, and H2S flux in …
Evaluation Of Cd109, Pcp4 And Sema3d Genes For Their Association With Ovine Johne’S Disease In Turkish Sheep,
2021
Sheep Breeding and Research Institute
Evaluation Of Cd109, Pcp4 And Sema3d Genes For Their Association With Ovine Johne’S Disease In Turkish Sheep, Yalçın Yaman, Ramazan Aymaz, Murat Keleş, Veysel Bay, Ecem Hatipoğlu, Cüneyt Kaptan, Atilla Başkurt, Onur Yilmaz, Michael P. Heaton
Roman L. Hruska U.S. Meat Animal Research Center: Reports
Johne’s disease is a chronic, contagious, zoonotic disease that affects numerous species including livestock and sometimes humans. The disease is globally distributed in sheep populations and caused by Mycobacterium avium Subsp. paratuberculosis (MAP). A previous genome-wide association study identified single nucleotide polymorphism (SNP) markers associated with OJD serostatus in CD109, PCP4, and SEMA3D genes. Our aim was to evaluate the same markers for association with OJD seroprevalence in Turkish sheep in a retrospective matched case-control study. The serological status for OJD in 1801 sheep was determined for four native and four composite breeds from three research flocks. One hundred eleven …
Comparison Of Performance Of F1 Romanov Crossbred Ewes With Wool And Hair Breeds During Spring Lambing Under Intensive And Extensive Production Systems,
2021
USDA ARS Roman L. Hruska U.S. Meat Animal Research Center
Comparison Of Performance Of F1 Romanov Crossbred Ewes With Wool And Hair Breeds During Spring Lambing Under Intensive And Extensive Production Systems, Brad A. Freking, Thomas W. Murphy
Roman L. Hruska U.S. Meat Animal Research Center: Reports
The objective was to evaluate wool (Dorset and Rambouillet) and hair (Dorper, Katahdin, and White Dorper) breeds for their ability to complement Romanov germplasm in two distinct production systems by estimating direct sire and grandsire effects on lamb growth, survival, and ewe productivity traits. Rams of the five breeds (n = 75) were mated to Romanov ewes (n = 459) over a 3-yr period to produce five types of crossbred lambs (n = 2,739). Sire breed (P > 0.06) did not impact body weight or survival traits of the first-generation crossbred (F1) lambs. The productivity of retained crossbred ewes (n = …
Accuracy Of Gebv Of Sires Based On Pooled Allele Frequency Of Their Progeny,
2021
University of Nebraska–Lincoln
Accuracy Of Gebv Of Sires Based On Pooled Allele Frequency Of Their Progeny, Napoleón Vargas Jurado, Larry A. Kuehn, John W. Keele, Ronald M. Lewis
Roman L. Hruska U.S. Meat Animal Research Center: Reports
Despite decreasing genotyping costs, in some cases individually genotyping animals is not economically feasible (e.g., in small ruminants). An alternative is to pool DNA, using the pooled allele frequency (PAF) to garner information on performance. Still, the use of PAF for prediction (estimation of genomic breeding values; GEBVs) has been limited. Two potential sources of error on accuracy of GEBV of sires, obtained from PAF of their progeny themselves lacking pedigree information, were tested: (i) pool construction error (unequal contribution of DNA from animals in pools), and (ii) technical error (variability when reading the array). Pooling design (random, extremes, K-means), …
Development And Validation Of A Neural Network For The Automated Detection Of Horn Flies On Cattle,
2021
University of Nebraska-Lincoln
Development And Validation Of A Neural Network For The Automated Detection Of Horn Flies On Cattle, Eric T. Psota, E. K. Luc, G. M. Pighetti, L. G. Schneider, R. T. Trout Fryxell, J. W. Keele, L. A. Kuehn
Roman L. Hruska U.S. Meat Animal Research Center: Reports
When the number of horn flies that blood feed on cattle exceeds the economic threshold, they can adversely affect the health and wellbeing of their hosts. Excessive horn fly burdens also lead to reduced weight gain and, consequently, diminished profits for livestock producers. Effective management and treatment require reliable surveillance methods for estimating the degree of horn fly burden (i.e., counting the number of flies on cattle). Traditionally, these estimates are obtained through human visual estimation, either in-person or by counting images on a photo; however, these methods are costly both in terms of time and labor and are prone …
Use Of Bedding Materials In Beef Bedded Manure Packs At Hot And Cold Ambient Temperatures: Effects On Odorous Volatile Organic Compounds And Odor Activity Values,
2021
University of Minnesota Twin Cities
Use Of Bedding Materials In Beef Bedded Manure Packs At Hot And Cold Ambient Temperatures: Effects On Odorous Volatile Organic Compounds And Odor Activity Values, Jeff P. Jaderborg, Mindy J. Spiehs, Bryan L. Woodbury, Alfredo Dicostanzo, David B. Parker
Roman L. Hruska U.S. Meat Animal Research Center: Reports
Beef cattle producers are beginning to raise cattle in confinement facilities such as slatted-floor barns, hoop barns, and mono-slope facilities. Hoop and mono-slope facilities typically use bedding packs as part of their manure management system, with crop residues being the most commonly used bedding material. This study was conducted to determine the effects of bedding material, i.e., corn stover (CS), bean stover (BS), wheat straw (WS), or pine wood chips (PC), and environmental ambient temperature, i.e., cold (15°C) or hot (30°C), on the concentrations of odorous volatile organic compounds (VOCs) in air samples collected in the headspace above lab-scale bedded …
Genetic Changes In Beef Cow Traits Following Selection For Calving Ease,
2021
USDA ARS Roman L. Hruska U.S. Meat Animal Research Center
Genetic Changes In Beef Cow Traits Following Selection For Calving Ease, Gary L. Bennett, Richard M. Thallman, Warren M. Snelling, John W. Keele, Harvey C. Freetly, Larry A. Kuehn
Roman L. Hruska U.S. Meat Animal Research Center: Reports
One approach to reducing calving difficulty is to select heifers with higher breeding value for calving ease. Calving ease is often associated with lower birth weight and that may result in other possible effects on lifetime productivity. Females from experimental select and control calving ease lines within each of the seven populations were compared. Random samples of 720 heifers from lines selected for better calving ease breeding values and 190 heifers from control lines selected for average birth weights were followed through four parities. Select and control lines within the same population were selected to achieve similar yearling weight breeding …
Comparison Of Performance Of F1 Romanov Crossbred Ewes With Wool And Hair Breeds During Fall Lambing And Body Weight And Longevity Through Six Production Years,
2021
USDA ARS Roman L. Hruska U.S. Meat Animal Research Center
Comparison Of Performance Of F1 Romanov Crossbred Ewes With Wool And Hair Breeds During Fall Lambing And Body Weight And Longevity Through Six Production Years, Thomas W. Murphy, Brad A. Freking
Roman L. Hruska U.S. Meat Animal Research Center: Reports
The objective of this study was to evaluate wool (Dorset and Rambouillet) and hair (Dorper, Katahdin, and White Dorper) breeds for their ability to complement Romanov germplasm in an annual fall lambing system by estimating direct maternal grandsire and sire breed effects on economically important lamb and ewe traits. After 3 yr of evaluation under spring lambing, ewes of the five F1 types were transitioned to spring mating, exposed to composite terminal sires, and evaluated under a barn lambing system at 4, 5, and 6 yr of age. A total of 527 first generation crossbred (F1) ewes produced 1,151 litters …
Review: Perspective On High-Performing Dairy Cows And Herds,
2021
NC State University
Review: Perspective On High-Performing Dairy Cows And Herds, J. H. Britt, R. A. Cushman, C. D. Dechow, H. Dobson, P. Humblot, M. F. Hutjens, G. A. Jones, F. M. Mitloehner, P. L. Ruegg, I. M. Sheldon, J. S. Stevenson
Roman L. Hruska U.S. Meat Animal Research Center: Reports
Milk and dairy products provide highly sustainable concentrations of essential amino acids and other required nutrients for humans; however, amount of milk currently produced per dairy cow globally is inadequate to meet future needs. Higher performing dairy cows and herds produce more milk with less environmental impact per kg than lower performing cows and herds. In 2018, 15.4% of the world's dairy cows produced 45.4% of the world's dairy cow milk, reflecting the global contribution of high-performing cows and herds. In high-performing herds, genomic evaluations are utilized for multiple trait selection, welfare is monitored by remote sensing, rations are formulated …
Range Beef Cow Symposium Xxvii, 2021, Rapid City, South Dakota,
2021
University of Nebraska - Lincoln
Range Beef Cow Symposium Xxvii, 2021, Rapid City, South Dakota
Range Beef Cow Symposium
2021 Range Beef Cow Symposium, presented by the Cooperative Extension Services and Animal Science Departments of University of Wyoming, Colorado State University, South Dakota State University, and University of Nebraska—Lincoln.
Exploring How Maternal Phosphorus Status Affects Calf Growth And Performance,
2021
University of Arkansas, Fayetteville
Exploring How Maternal Phosphorus Status Affects Calf Growth And Performance, Elizabeth Lafferty, Beth Kegley, Brittni Littlejohn, Jeremy Powell
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Phosphorus is an important component of bodily functions and is critical for adequate growth and development. This experiment evaluated the effect of maternal phosphorus intake on the growth and health of the calves. Treatments were 1) a free-choice mineral containing no supplemental P or 2) a free-choice mineral with 4% supplemental phosphorus. Primiparous, or pregnant for the first time, crossbred Angus beef cows (n = 36) were stratified by body weight and pregnancy status (bred by artificial insemination or natural service) then assigned to pasture groups (4 groups, 2/treatment, 9 heifers/group). These bred heifers had been receiving these same dietary …
Management And Dietary Strategies To Mitigate Environmental Stressors In Northern Plains Cattle Feeding Systems,
2021
South Dakota State University
Management And Dietary Strategies To Mitigate Environmental Stressors In Northern Plains Cattle Feeding Systems, Warren Carl Rusche
Electronic Theses and Dissertations
Three studies were undertaken to examine strategies to mitigate environmental stress faced by Northern Plains cattle feeders. In the first study, 46 feedlot managers from SD (n = 21), MN (n = 6), and NE (n = 19) were surveyed on use and perceptions of heat stress (HS) mitigation strategies. All respondents avoided cattle handling during heat stress events and incorporated some method of HS mitigation. Buildings or shades were perceived as the most successful strategy (60.9%) and were most commonly named as strategies managers would like to employ (63% for shades and 17.4% for buildings). Increasing dietary corn silage …
Impact Of Carcass Chilling System On Carcass Characteristics And Biochemical Changes In Beef Carcasses,
2021
South Dakota State University
Impact Of Carcass Chilling System On Carcass Characteristics And Biochemical Changes In Beef Carcasses, Lydia Margaret Hite
Electronic Theses and Dissertations
Effective and efficient chilling of beef carcasses will directly influence meat quality and consumer acceptance. Over the past century the United States’ meat industry has evolved, and spray chilling system have become common practice utilized by the beef industry. However, many of the chilling systems presently in use were designed to chill carcasses averaging lighter than the average beef hot carcass weight of today. Beef hot carcass weight has increased 68 kilograms from 1991 to 2019. The increase in beef hot carcass weight could result in longer chilling periods and present possible challenges for chilling systems used by the beef …
