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Articles 31 - 36 of 36
Full-Text Articles in Genetics and Genomics
National Beef Quality Audit-2016: Transportation, Mobility, And Harvest-Floor Assessments Of Targeted Characteristics That Affect Quality And Value Of Cattle, Carcasses, And By-Products, L.C. Eastwood, C A. Boykin, M.K. Harris, A.N. Arnold, D.S. Hale, C R. Kerth, D.B. Griffin, J.W. Savell, K.E. Belk, D.R. Woerner, J.D. Hasty, R.J. Delmore Jr., J.N. Martin, T.E. Lawrence, T.J. Mcevers, D.L. Vanoverbeke, G.G. Mafi, M.M. Pfeiffer, Ty B. Schmidt, R.J. Maddock, D.D. Johnson, C.C. Carr, J. M. Scheffler, T.D. Pringle, A.M. Stelzleni
National Beef Quality Audit-2016: Transportation, Mobility, And Harvest-Floor Assessments Of Targeted Characteristics That Affect Quality And Value Of Cattle, Carcasses, And By-Products, L.C. Eastwood, C A. Boykin, M.K. Harris, A.N. Arnold, D.S. Hale, C R. Kerth, D.B. Griffin, J.W. Savell, K.E. Belk, D.R. Woerner, J.D. Hasty, R.J. Delmore Jr., J.N. Martin, T.E. Lawrence, T.J. Mcevers, D.L. Vanoverbeke, G.G. Mafi, M.M. Pfeiffer, Ty B. Schmidt, R.J. Maddock, D.D. Johnson, C.C. Carr, J. M. Scheffler, T.D. Pringle, A.M. Stelzleni
Department of Animal Science: Faculty Publications
The National Beef Quality Audit-2016 (NBQA-2016) was conducted to assess current transportation, mobility, and quality characteristics of U.S. fed steers and heifers. Data were collected at 17 beef processing facilities between March and November 2016. About 8,000 live cattle were evaluated for transportation and mobility, and about 25,000 carcasses were evaluated on the slaughter floor. Cattle were in transit to the slaughter facility for a mean duration of 2.7 h from a mean distance of 218.5 km using trailers with dimensions ranging from 17.84 m2 to 59.09 m2. Area allotted per animal averaged 1.13 m2 and ranged from 0.85 m2 …
National Beef Quality Audit–2016: Transportation, Mobility, Live Cattle, And Carcass Assessments Of Targeted Producer-Related Characteristics That Affect Value Of Market Cows And Bulls, Their Carcasses, And Associated By-Products, M.K. Harris, L.C. Eastwood, C.A. Boykin, A.N. Arnold, K.B. Gehring, D.S. Hale, C.R. Kerth, D.B. Griffin, J.W. Savell, K.E. Belk, D.R. Woerner, J.D. Hasty, R.J. Delmore Jr., J.N. Martin, T.E. Lawrence, T.J. Mcevers, D.L. Vanoverbeke, G.G. Mafi, M.M. Pfeiffer, Ty B. Schmidt, R.J. Maddock, D.D. Johnson, C.C. Carr, J.M. Scheffler, T.D. Pringle, A.M. Stelzleni
National Beef Quality Audit–2016: Transportation, Mobility, Live Cattle, And Carcass Assessments Of Targeted Producer-Related Characteristics That Affect Value Of Market Cows And Bulls, Their Carcasses, And Associated By-Products, M.K. Harris, L.C. Eastwood, C.A. Boykin, A.N. Arnold, K.B. Gehring, D.S. Hale, C.R. Kerth, D.B. Griffin, J.W. Savell, K.E. Belk, D.R. Woerner, J.D. Hasty, R.J. Delmore Jr., J.N. Martin, T.E. Lawrence, T.J. Mcevers, D.L. Vanoverbeke, G.G. Mafi, M.M. Pfeiffer, Ty B. Schmidt, R.J. Maddock, D.D. Johnson, C.C. Carr, J.M. Scheffler, T.D. Pringle, A.M. Stelzleni
Department of Animal Science: Faculty Publications
The National Beef Quality Audit–2016 marks the fourth iteration in a series assessing the quality of live beef and dairy cows and bulls and their carcass counterparts. The objective was to determine the incidence of producer-related defects, and report cattle and carcass traits associated with producer management. Conducted from March through December of 2016, trailers (n = 154), live animals (n = 5,470), hide-on carcasses (n = 5,278), and hide-off hot carcasses (n = 5,510) were surveyed in 18 commercial packing facilities throughout the United States. Cattle were allowed 2.3 m2 of trailer space on average during transit indicating some …
Transcriptomic And Bioinformatics Analysis Of The Early Time-Course Of The Response To Prostaglandin F2 Alpha In The Bovine Corpus Luteum, Heather Talbott, Xiaoying Foote, Fang Qiu, Pan Zhang, Chittibabu Guda, Fang Yu, Robert A. Cushman, Jennifer R. Wood, Cheng Wang, Andrea S. Cupp, John S. Davis
Transcriptomic And Bioinformatics Analysis Of The Early Time-Course Of The Response To Prostaglandin F2 Alpha In The Bovine Corpus Luteum, Heather Talbott, Xiaoying Foote, Fang Qiu, Pan Zhang, Chittibabu Guda, Fang Yu, Robert A. Cushman, Jennifer R. Wood, Cheng Wang, Andrea S. Cupp, John S. Davis
Department of Animal Science: Faculty Publications
RNA expression analysis was performed on the corpus luteum tissue at five time points after prostaglandin F2 alpha treatment of midcycle cows using an Affymetrix Bovine Gene v1 Array. The normalized linear microarray data was uploaded to the NCBI GEO repository (GSE94069). Subsequent statistical analysis determined differentially expressed transcripts ± 1.5-fold change from saline control with P ≤ 0.05. Gene ontology of differentially expressed transcripts was annotated by DAVID and Panther. Physiological characteristics of the study animals are presented in a figure. Bioinformatic analysis by Ingenuity Pathway Analysis was curated, compiled, and presented in tables. A dataset comparison with similar …
Economic Selection Index Development For Beefmaster Cattle Ii: General-Purpose Breeding Objective, Kathleen P. Ochsner, M. D. Macneil, Ronald M. Lewis, Matthew L. Spangler
Economic Selection Index Development For Beefmaster Cattle Ii: General-Purpose Breeding Objective, Kathleen P. Ochsner, M. D. Macneil, Ronald M. Lewis, Matthew L. Spangler
Department of Animal Science: Faculty Publications
An economic selection index was developed for Beefmaster cattle in a general-purpose production system in which bulls are mated to a combination of heifers and mature cows, with resulting progeny retained as replacements or sold at weaning. National average prices from 2010 to 2014 were used to establish income and expenses for the system. Genetic parameters were obtained from the literature. Economic values were estimated by simulating 100,000 animals and approximating the partial derivatives of the profit function by perturbing traits 1 at a time, by 1 unit, while holding the other traits constant at their respective means. Relative economic …
A Potential Role For Mtorc1/2 In Β2 Adrenergic Regulation Of Skeletal Muscle Glucose Oxidation In Models Of Intrauterine Growth Restriction, Robert J. Posont, Caitlin N. Cadaret, Taylor L. Barnes, Dustin T. Yates
A Potential Role For Mtorc1/2 In Β2 Adrenergic Regulation Of Skeletal Muscle Glucose Oxidation In Models Of Intrauterine Growth Restriction, Robert J. Posont, Caitlin N. Cadaret, Taylor L. Barnes, Dustin T. Yates
Department of Animal Science: Faculty Publications
The epidemic of intrauterine growth restriction (IUGR) continues to be a leading cause of perinatal morbidity and mortality throughout the world. This condition has been linked to the development of metabolic health problems such as obesity, hypertension, glucose intolerance, and type 2 diabetes at all ages. Previous studies have demonstrated that IUGR fetal adaptations impair proper glucose homeostasis in part via changes in insulin responsiveness in key tissues including skeletal muscle and liver, and that these deficits persists into adulthood. Many components of insulin signaling pathways associated with glucose metabolic regulation have been evaluated in IUGR tissues for adaptive changes. …
Genetic Polymorphisms Of The Glucocorticoid Receptor And Interleulin-8 Receptor Genes And Their Relationship To Production Traits And Hair Coat Scores In Crossbred Cattle, Avery B. Deaton, Laura Meyer, Jeremy Powell, Charles F. Rosenkrans Jr.
Genetic Polymorphisms Of The Glucocorticoid Receptor And Interleulin-8 Receptor Genes And Their Relationship To Production Traits And Hair Coat Scores In Crossbred Cattle, Avery B. Deaton, Laura Meyer, Jeremy Powell, Charles F. Rosenkrans Jr.
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Little is understood about how the diversity of genes, specifically the glucocorticoid receptor (GR) and interleukin-8 receptor (CXCR2), are related to reproductive health and how this affects physical traits in cattle. Glucocorticoid receptors have been positively associated with higher milk yields, lactose content, feed intake, and feed conversion rates. Interleukin-8 genes are part of the innate immune response and help with many aspects of female reproductive health, such as protecting the embryo from the maternal immune system during pregnancy. The objective of this research was to identify polymorphisms in the GR and CXCR2 genes and to associate genotypes between the …