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College of Agricultural Sciences Personnel Profile
Personnel Photo of Scott E Speidel
Scott E Speidel
Assistant Professor
Animal Sciences
College of Agricultural Sciences

Animal Sciences Building, Room
Phone:
970-491-5419
Education:
  • Ph D, Colorado State University; Animal Science / Breeding and Genetics
  • MS, University of Arizona; Animal Science / Dairy Cattle Molecular Genetics
  • BS, California State University Fresno; Animal Science
Personal Website:
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Thomas, Milt, Brown, R.D., Stenmark, K.R., Krafsur, Greta M, Speidel, Scott E, Enns, Mark Mark, Bowen, Richard A, Holt, Timothy N, (2018) "Metabolism and inflammation predict cardiopulmonary disease outcomes in fattening beef cattle" 99th Conf. Res. Workers Anim. Disease P168

Culbertson, Randie Marguerite, Enns, Mark Mark, Speidel, Scott E, (2018) "Estimation of variance components due to direct and maternal effects for feed intake in Gelbvieh cattle." Journal of Animal Science 96 Suppl 2 109

Crawford, Natalie Faye, Coleman, Stephen John, Holt, Timothy N, Speidel, Scott E, Enns, Mark Mark, Hamid, R, Thomas, Milt, (2018) Allele distribution and testing for association between an oxygen dependent degradation domain SNP in EPAS1 and pulmonary arterial pressures in yearling Angus cattle Agri Gene 9 27-31

Pauling, Rachel Christine, Speidel, Scott E, Thomas, Milt, Holt, Timothy N, Enns, Mark Mark, (2018) Evaluation of moderate to high elevation effects on pulmonary arterial pressure measures in Angus cattle Journal of Animal Science

Speidel, Scott E, Culbertson, Randie Marguerite, Sánchez-Castro, M.A., Sellins, Karen S, Engle, Terry E, Thomas, Milt, Enns, Mark Mark, (2018) "Factors influencing blood urea nitrogen concentration in Angus cattle" Journal of Animal Science 96 (Suppl 3) 384

Boldt, Ryan John, Speidel, Scott E, Thomas, Milt, Enns, Mark Mark, (2018) Genetic parameters for fertility and production traits in Red Angus cattle Journal of animal science 96 10 4100-4111

Foxworthy, Heather Marie, Enns, Mark Mark, Speidel, Scott E, Thomas, Milt, Holt, Timothy N, (2018) "Gestation length as a weak predictor of yearling pulmonary arterial pressure and risk of developing high altitude disease in Angus cattle at high elevation" Journal of Animal Science 96 (Suppl 3) 106-107

Langdon II, John M, Delgadillo, Jose S, Herring, Andy D, Blackburn, Harvey D, Speidel, Scott E, Sanders, Stacy, Riley, David G, (2018) "Heritability estimation and modeling strategies utilizing random regression in American hereford Cattle." Proceedings of the Texas A&M Beef Cattle Short Course 64

Aguilar-Trejo, C, Romo-Rubio, J, Luna-Nevárez, G, Reyna-Granados, J, Zeng, Xi, Sánchez-Castro, M, Enns, Mark Mark, Speidel, Scott E, Thomas, Milt, Luna-Nevárez, P, (2018) "Molecular Markers Associated with Physiological Response after Vaccination against Porcine Respiratory and Reproductive Syndrome in Replacement Gilts from Northern Mexico" Journal of Animal Science 96 (Suppl 3) 37-38

Crawford, Natalie Faye, Coleman, Stephen John, Enns, Mark Mark, Speidel, Scott E, Garry, Franklyn B, Holt, Timothy N, Thomas, Milt, (2018) "Pathway analyses revealed up-regulation of calcium-dependent genes in the cardiac right ventricle of Angus steers fed at high altitude" Journal of Animal Science 96 (Suppl 3) 61-62

Luna-Nevárez, G, Zamorano-Algandar, R, Reyna-Granados, J, Leyva-Corona, J, Luna-Ramirez, R, Rincón, G, Medrano, J, Sánchez-Castro, M, Enns, Mark Mark, Speidel, Scott E, Thomas, Milt, (2018) "Polymorphisms in the Prolactin and GH-IGF1 Pathways associated with a Heat Tolerance Indicator in Dairy Cows under Heat Stress in Sonora Mexico" Journal of Animal Science 96 (Suppl 3) 128-129

Jennings, Kaysie, Krafsur, Greta M, Brown, D, Holt, Timothy N, Coleman, Stephen John, Speidel, Scott E, Enns, Mark Mark, Stenmark, K, Thomas, Milt, (2018) "Pulmonary hypertension in Angus steers: influence of finishing systems and altitudes" Journal of Animal Science 96 (Suppl 3) 87-87

Culbertson, Randie Marguerite, Speidel, Scott E, Enns, Mark Mark, (2018) "Report to Leachman Cattle of Colorado" Leachman Cattle of Colorado

Sánchez-Castro, M, Holt, Timothy N, Thomas, Milt, Enns, Mark Mark, Speidel, Scott E, (2018) "Use of reaction norms to evaluate high altitude disease susceptibility in Angus sires" Journal of Animal Science 96 (Suppl. 3) 110-111

Pierce, Courtney Fay, Bailey, D, Medrano, J, Cánovas, A, Speidel, Scott E, Coleman, Stephen John, Enns, Mark Mark, Thomas, Milt, (2018) "Validation of Quantitative Trait Loci Associated with Grazing Distribution Traits in Beef Cattle Using Bayes C" Journal of Animal Science 96 (Suppl 3) 105-105

Thomas, Milt, Neary, J.M., Krafsur, Greta M, Holt, Timothy N, Enns, Mark Mark, Speidel, Scott E, Garry, Franklyn B, Canovas, A., Medrano, J.F., Brown, R.D., Stenmark, K.R., (2018) "Pulmonary hypertension in beef cattle: a complicated threat to health and productivity in multiple beef industry segments" Certified Angus Beef

Culbertson, Randie Marguerite, Speidel, Scott E, Enns, Mark Mark, (2018) "Report to Leachman Cattle of Colorado. Results of Development of Multivariate PAP EPD." Leachman Cattle of Colorado

Boldt, Ryan John, Speidel, Scott E, Enns, Mark Mark, "Report to the American Blonde d'Aquitaine Association. 2018 Growth Genetic Evaluation" American Blonde d'Aquitaine Association

Boldt, Ryan John, Speidel, Scott E, Enns, Mark Mark, (2018) "Report to the Red Angus Association of America. Results of analysis for prototype udder suspension score and teat score genetic evaluation" Red Angus Association of America

Boldt, Ryan John, Speidel, Scott E, Enns, Mark Mark, "Report to the Red Angus Association of America. Results of the development of a dry matter intake genetic prediction." Red Angus Association of America

Pierce, Courtney Fay, Bailey, D.W., Medrano, J.F., Cánovas, A., Speidel, Scott E, Coleman, Stephen John, Enns, Mark Mark, Thomas, Milt, (2018) "Characteristics of grazing distribution traits in beef cattle for genotype-phenotype associations" Proc. 11th World Congr. Genet. Appl. Livest. Prod. 11 246

Mercado, T.J., Bailey, D.W., Thomas, Milt, Enns, Mark Mark, Speidel, Scott E, (2018) "Repeatability of terrain use by cattle in rugged rangeland pastures" Proc. 71st Soc. Range Mgmt. Ann. Meet.

Gannon, M.R., Mercado, T.J., Bailey, D.W., Thomas, Milt, Speidel, Scott E, Enns, Mark Mark, (2018) "Sampling period length needed to characterize cattle terrain use on rugged rangeland" Proc. 71st Soc. Range Mgmt. Ann. Meet.

Pierce, Courtney Fay, Barbero, M.M., Bailey, D.W., Medrano, J.F., Cánovas, A., Speidel, Scott E, Coleman, Stephen John, Enns, Mark Mark, Thomas, Milt, (2018) "Studying grazing distribution of beef cattle using DNA technology" Proc. 71st Soc. Range Mgmt. Ann. Meet.

Langdon, John M, Delgadillo-Liberona, Jose S, Herring, Andy D, Blackburn, Harvey D., Speidel, Scott E, Sanders, Stacy, Krehbiel, Beth C., Riley, David G., (2018) "Comparison of linear mixed model and random regression model for weaning weight in Hereford cattle over a United States longitudinal gradient." Journal of Animal Science 96 Suppl. 1 1

Speidel, Scott E, Buckley, BA, Boldt, Ryan John, Enns, Mark Mark, Lee, J, Spangler, ML, Thomas, Milt, (2018) Genome-wide association study of Stayability and Heifer Pregnancy in Red Angus cattle Journal of Animal Science 96 3 846-853

Delgadillo-Liberona, Jose S, Langdon, John M, Riley, David G, Blackburn, Harvey D, Speidel, Scott E, Krehbiel, Beth C, Sanders, Stacy, Herring, Andy D, (2018) "Heritability estimations for intramuscular fat in Hereford cattle using random regressions." Journal of Animal Science 96 Suppl. 1 2-3

Pierce, Courtney Fay, Thomas, Milt, Enns, Mark Mark, Speidel, Scott E, (2018) "Improving beef cow grazing technology distribution using GPS and DNA technology" Colorado State University

Leyva-Corona, Jose C, Reyna-Granados, Javier R, Zamorano-Algandar, Ricardo, Sanchez-Castro, Miguel A, Thomas, Milt, Enns, Mark Mark, Speidel, Scott E, Medrano, Juan F, Rincon, Gonzalo, Luna-Nevarez, Pablo, (2018) Polymorphisms within the prolactin and growth hormone/insulin-like growth factor-1 functional pathways associated with fertility traits in Holstein cows raised in a hot-humid climate Tropical Animal Health and Production 50 1913-1920

Speidel, Scott E, Enns, Mark Mark, Boldt, Ryan John, Sanchez-Castro, M.A., Thomas, Milt, (2018) "Summary Breeding and Genetics: further study of fertility traits in Angus cattle may lead to improved EPD strategies" Colorado State University

Thomas, Milt, Holt, Timothy N, Enns, Mark Mark, Speidel, Scott E, Coleman, Stephen John, Culbertson, Randie Marguerite, Jennings, Kaysie, Krafsur, Greta M, Crawford, Natalie Faye, Krehbiel, B.C., (2018) "Summary Breeding and Genetics: genetic study of adaptability of beef cattle to altitude" Colorado State University

Thomas, Milt, Pierce, Courtney Fay, Enns, Mark Mark, Speidel, Scott E, Bailey, D.W., (2018) "Summary Breeding and Genetics: genetics influences distribution of cows grazing western rangelands" Colorado State University

Speidel, Scott E, Enns, Mark Mark, Golden, Bruce, (2018) "Use of a Random Regression model for the evaluation of heifer pregnancy in Red Angus Cattle." Proc. 11th World Congr. Genet. Appl To Livest. Prod. 11 581

Enns, R.M., Speidel, Scott E, Pierce., C., (2017) "Report to ABS Global: Result of Pulmonary Arterial Pressure Tests on Progeny of ABS Global Sires"

Boldt, Ryan John, Speidel, Scott E, Enns, R.M., (2017) "Report to Focus Genetics L/P: Results of Analysis for Prototype Carcass EBV"

Culbertson, Randie Marguerite, Speidel, Scott E, Enns, R.M., (2017) "Report to Leachman Cattle of Colorado: Results of Development of Heifer Pregnancy EPD"

Enns, R.M., Speidel, Scott E, Pierce, Courtney Fay, (2017) "Report to Select Sires, Inc: Result of Pulmonary Arterial Pressure Tests on Progeny of Select Sires, Inc. Bulls"

Boldt, Ryan John, Speidel, Scott E, Thomas, Milt, Enns, R.M., (2017) "Report to the Red Angus Association of America: Results of Analysis for RAFI Next Generation Red Angus Fertility Evaluation"

Aguilar-Trejo, C.M., Valerio-Valle, KM., Luna-Ramirez, RI., Luna-Nevarez, G., Reyna-Granados, J.R., Romo, J.A., Sánchez-Castro, M.A., Zeng, Xi, Enns, R.M., Speidel, Scott E, (2017) Validation of candidate markers associated with reproductive performance in porcine respiratory and reproductive syndrome virus naturally infected replacement gilts in southern Sonora Mexico J. Anim. Sci. 95 29

Hernández-Cordero, A.I., Sánchez-Castro, M. A., Zamorano-Algandar, R., Luna-Nevárez, P., Rincón, G., Medrano, J.F., Speidel, Scott E, Enns, R.M., Thomas, Milt, (2017) Genotypes within the prolactin and growth hormone insulin-like growth factor-I pathways associated with milk production in heat stressed Holstein cattle: Genotypes and milk yield in heat stressed Holstein cows Genet. Mol. Res. 16 4

Luna-Nevárez, G, Aguilar-Trejo, C.M., Luna-Ramírez, R.I., Zamorano-Algandar, R, Zheng, Xin, Enns, M.E., Speidel, Scott E, Thomas, Milt, Luna-Nevárez, P, (2017) Identificación de regiones genómicas asociadas a respuesta a la vacunación contra el PRRS en cerdas reproductoras del sur de Sonora, México Recursos Naturales 15

Thomas, Milt, Speidel, Scott E, Enns, , Saad, Hamad M A, (2017) "Zoetis; GeneMax Advantage Validation with CSU Rouse Angus Final Report" Colorado State University

Jennings, K.J., Zeng, Xi, Reverter, A., Holt, T.N., Coleman, Stephen John, Enns, R.M., Speidel, Scott E, Thomas, Milt, (2017) "Construction of an association weight matrix to identify SNP that play a role in performance of Angus cattle at higher elevations" J. Anim. Sci. 95(E. Supple. 4) 86

Sánchez-Castro, M.A., Boldt, Ryan John, Thomas, Milt, Enns, R.M., Speidel, Scott E, (2017) "Expected progeny differences for stayability in Angus cattle using a random regression model" J. Anim. Sci. 95(E. Supple. 4) 88

Boldt, Ryan John, Speidel, Scott E, Thomas, Milt, Keenan, L.D., (2017) "Genetic parameters for carcass traits and stayability in Red Angus cattle" J. Anim. Sci. 95(E. Supple. 4) 89

Krehbiel, B.C., Thomas, Milt, Speidel, Scott E, Enns, R.M., Blackburn, H.D., (2017) "Genetic structure of Angus and Salers in relation to SNP associated with pulmonary arterial pressure" J. Anim. Sci. 95(E. Supple. 4) 87

Speidel, Scott E, Buckley, B.A., Boldt, Ryan John, Enns, R.M., Lee, J., Spangler, M.L., Thomas, Milt, (2017) "Genome wide association of heifer pregnancy and stayability in Red Angus cattle" J. Anim. Sci. (JAS-2017-2218; Submitted Nov. 7, 2017)

Speidel, Scott E, Buckley, B.A., Boldt, Ryan John, Enns, R.M., Zeng, Xi, Lee, J., Spangler, M.L., Thomas, Milt, (2017) "Genome-wide association study for stayability in Red Angus cattle" J. Anim. Sci. 95(E. Supple. 4) 97

Buckley, BA, Speidel, Scott E, Boldt, Ryan John, Enns, RM, Zeng, Xi, Spangler, ML, Lee, J, Thomas, Milt, (2017) "Genome-wide association study of heifer pregnancy in Red Angus cattle" J. Anim. Sci. 95(E. Supple. 4) 96

Crawford, Natalie Faye, Coleman, Stephen John, Holt, T.N., Speidel, Scott E, Enns, R.M., Newman, J.H., Hamid, R., Thomas, Milt, (2017) "Genotyping a SNP in the endothelial PAS domaincontaining protein 1 (EPAS1) gene: is it associated with mean pulmonary arterial pressures in yearling Angus cattle?" J. Anim. Sci. 95(E. Supple. 4) 87

Zamorano-Algandar, R, Leyva-Corona, J.C., Luna-Ramirez, R.I., Luna-Nevarez, G., Rincon, G., Medrano, J.F., Hernandez, A.I., Sánchez-Castro, M.A., Enns, R.M., Speidel, Scott E, Thomas, Milt, (2017) "Molecular breeding value prediction of pregnancy rate in Holstein dairy cows managed in a heat-stressed environment using candidate gene SNP" J. Anim. Sci. 95(E. Supple. 4) 84

Culbertson, Randie Marguerite, Thomas, Milt, Leachman, L.L., Enns, R.M., Speidel, Scott E, (2017) "Multivariate analysis of beef cattle pulmonary arterial pressures measured at differing elevations" J. Anim. Sci. 95(E. Supple. 4) 86

Pierce, C.F., Dias, M.M., Bailey, D.W., Medrano, J.F., Canovas, A, Speidel, Scott E, Coleman, Stephen John, Enns, R.M., Thomas, Milt, (2017) "SNP discovery for QTL associated with grazing distribution in Angus cattle using RNA-Seq" J. Anim. Sci. 95(E. Supple. 4) 85

Thomas, Milt, Krafsur, G.M., Holt, T.N., Enns, R.M., Speidel, Scott E, Garry, F.B., Canovas, A., Medrano, J.F., Brown, R.D., Stenmark, K.R., Neary, J.M., (2017) "Genetics of brisket disease in beef cattle: a not so high altitude problem" Association for Advancement of Animal Breeding and Genetics 22

Dias, Marina M, Canovas, Angela, Mantilla-Rojas, C., Riley, David G, Luna-Nevarez, Pablo, Coleman, Stephen John, Speidel, Scott E, Enns, Mark Mark, Islas-Trejo, A, Medrano, Juan F, Moore, Steve , Fortes, Marina, Nguyen, Loan T., Venus, B., Diaz, Iara, Souza, F., Albuquerque, L, Thomas, Milt, Oliveria, H., (2017) SNP detection using RNA-sequences of candidate genes associated with puberty in cattle Genetics and Molecular Research 16 1 17

Dias, M M, Cánovas, A, Mantilla-Rojas, C, Riley, D G, Luna-Nevarez, P, Coleman, Stephen John, Speidel, Scott E, Enns, Mark Mark, Islas-Trejo, A, Medrano, J F, Moore, S S, Fortes, M R, Nguyen, L T, Venus, B, Diaz, I S, Souza, F R, Fonseca, L F, Baldi, F, Albuquerque, L G, Thomas, Milt, Oliveira, H N, (2017) SNP detection using RNA-sequences of candidate genes associated with puberty in cattle. Genetics and molecular research : GMR 16 1

Dias, M.M., Cánovas, A., Mantilla-Rojas, C., Riley, D.G., Luna-Nevarez, P., Coleman, Stephen John, Speidel, Scott E, Enns, R.M., Islas-Trejo, A., Medrano, J.F., Thomas, Milt, (2017) SNP detection using RNA-sequences of candidate genes associated with puberty in cattle Genet. Mol. Res. 16 1

Millard, Michael F, Bailey, Derek W, Thomas, Milt, Speidel, Scott E, Enns, Mark Mark, Howery, Larry, (2017) "Year to year variability of individual cow distribution patterns: implications to genetic improvement" Proceedings of the Society of Range Management 70th Meeting 208

Crawford, Natalie Faye, Enns, R.M., Speidel, Scott E, LaShell, B., Holt, T.N., Thomas, Milt, (2017) Case Study: Factors influencing pulmonary arterial pressure in cattle of the San Juan Basin Research Center 4-Corners Bull Test data Prof. Anim. Sci. 33 3 387-392

Luna-Nevarez, P., Leyva-Corona, J. C., Sanchez-Castro, M. A., Zamorano-Algandar, R., Medrano, J. F., Rincon, G., Enns, Mark Mark, Speidel, Scott E, Thomas, Milt, (2016) "A polymorphism within the PAPPA2 gene is associated with postpartum fertility traits in Holstein Dairy cattle located in southern Sonora Mexico" J. Anim. Sci. 94(E. Suppl. 5) E163-E164

Zeng, Xi, Holt, Timothy N, Speidel, Scott E, Enns, Mark Mark, Thomas, Milt, (2016) "Angus cattle at high elevation: Comparison of models to estimate breeding values of yearling pulmonary arterial pressure" J. Anim. Sci. 94(E. Suppl. 5) E166-E167

Bailey, D. W., Millward, M., Stricklan, D., Thomas, Milt, Speidel, Scott E, Enns, Mark Mark, Medrano, J., Howery, L. D., (2016) "Development of indicies to select beef cattle for terrain use" Proceedings Society of Range Management pp. 81

Krehbiel, B. C., Thomas, Milt, Blackburn, H. D., Speidel, Scott E, Enns, Mark Mark, Keenan, L. D., (2016) "Evaluation of genetic structure across five U.S. Climate zones using prominent AI sires of two British Bos taurus breeds" J. Anim. Sci. 94(E. Suppl. 5) E4-E5

Krehbiel, B. C., Thomas, Milt, Blackburn, H. D., Speidel, Scott E, Enns, Mark Mark, Keenan, L., (2016) "Evaluation of genetic structure across five US climate zones using prominent AI sires of two British Bos taurus breeds" Proceedings WSASAS 67 65-68

Canovas, A., Cockrum, Rebecca, Brown, D., Riddle, S., Neary, J. M., Holt, Timothy N, Medrano, J. F., Islas-Trejo, A., Enns, Mark Mark, Speidel, Scott E, Cammack, K., Stenmark, K. R., Thomas, Milt, (2016) "Functional genomics of high altitude disease in Angus cattle: leveraging-OMICs and systems biology to better understanding of the function and role of key contributing genes." Proc. Int. Soc. Anim. Genet. pp. 78. Abstract P3050

Canovas, A., Cockrum, Rebecca, Brown, D., Riddle, S., Neary, J. M., Holt, Timothy N, Krafsur, Greta M, Medrano, J. F., Islas-Trejo, A., Enns, Mark Mark, Speidel, Scott E, Cammack, K., Stenmark, K. R., Thomas, Milt, (2016) "Functional SNP in a polygenic disease induced by high-altitude in fattening Angus steer" Proc. Eur. Fed. Anim. Sci pp. 67. Abstract 419

Canovas, A., .Cockrum, R. R, Brown, D., Riddle, S., Neary, J. M., Holt, Timothy N, Medrano, J. F., Islas-Trejo, A., Enns, Mark Mark, Speidel, Scott E, Cammack, K., Stenmark, K. R., Thomas, Milt, (2016) "Functional SNP in a polygenic disease induced by high-altitude in fattening Angus steers using systems biology approach" J. Anim. Sci. 94(E. Suppl. 5) E121

Boldt, Ryan John, Speidel, Scott E, Thomas, Milt, Keenan, L., Enns, Mark Mark, (2016) "Genetic parameters for production traits and heifer pregnancy in Red Angus cattle" J. Anim. Sci. 94(E. Suppl. 5 E183

Crawford, Natalie Faye, Thomas, Milt, Holt, Timothy N, Speidel, Scott E, Enns, Mark Mark, (2016) Heritabilities and genetic correlations of pulmonary arterial pressure and performance traits in Angus cattle at high altitude J. Anim. Sci. 94 11 4483-4490

Bailey, D. W., Millward, M. F., Thomas, Milt, Speidel, Scott E, Enns, Mark Mark, Medrano, J. F., Howery, L. D., (2016) "Improvements of cattle grazing distribution through genetic selection: challenges and opportunities" Proc. 10th Int. Rangeland Congr. pp. 182-183

Thomas, Milt, Coleman, Stephen John, Speidel, Scott E, Enns, Mark Mark, (2016) "Multi-omics data resources and use in genetic improvement of cattle growth and health" J. Anim. Sci. 94(E. Suppl. 5) E369-E370

Canovas, A, Cockrum, Rebecca, Brown, Richard David, Riddle, S. K., Neary, J. M., Holt, Timothy N, Krafsur, Greta M, Medrano, J. F., Islas-Trejo, A., Enns, Mark Mark, Speidel, Scott E, Cammack, K., Stenmark, K. R., Thomas, Milt, (2016) "Polymorphisms and splice variants in a polygenic disease induced by high altitude in fattening Angus steers using RNA-Seq and systems biology" Plant and Animal Genome XXIV Abstract PO108

Crawford, Natalie Faye, Zeng, Xi, Coleman, Stephen John, Holt, Timothy N, Speidel, Scott E, Enns, Mark Mark, Newman, John, Hamid, R., Thomas, Milt, (2016) "Pulmonary arterial pressure in yearling Angus cattle managed at high altitude: Study of a non-synonymous SNP in the oxygen-dependent degradation domain of the endothelial PAS domain-containing protein 1 gene" J. Anim. Sci. 94(E. Suppl. 5) E79-E80

Bailey, Derek W, Thomas, Milt, Holt, Tim N, Stephenson, Mitch B, Enns, Mark Mark, Speidel, Scott E, (2016) Relationship of pulmonary arterial pressure and terrain use of Angus cows grazing high-altitude foothill rangelands Livest. Sci. 190 76-80

Dias, M. M., Thomas, Milt, Canovas, A., Mantilla-Rojas, C., Riley, D., Luna, P., Coleman, Stephen John, Speidel, Scott E, Enns, Mark Mark, Ilas-Trejo, A., Medrano, J. F., Cockrum, Rebecca, Cammack, K. M., Stenmark, K. R., Moore, S., Fortes, M. R. S., Nguyen, L.T, Venus, B., Diaz, I., Souza, F., Fonseca, L., Baldi, F., Albuquerque, L., Oliveira, H., (2016) "SNP discovery in RNA-Seq across breeds of cattle in puberty-related candidate genes (i.e., network hubs)" Plant and Animal Genome Abstract PO518

Luna-Nevarez, P., Pavlovich-Sotomayor, M., Luna-Ramirez, R. I., Aguilar-Trejo, C. M., Luna-Nevarez, G., Zeng, Xi, Speidel, Scott E, Enns, Mark Mark, Thomas, Milt, (2016) "Study of genetic basis of immune response in gilts vaccinated with a modified live PRRS virus in a swine farm from southern Sonora Mexico" J. Anim. Sci. 94(E. Suppl. 5) E86-E87

Culbertson, Randie Marguerite, Thomas, Milt, Leachman, L. L., Enns, Mark Mark, Speidel, Scott E, (2016) "The effect of heterosis on pulmonary arterial pressure in beef cattle" J. Anim. Sci. 94(E. Suppl. 5) E167

Pauling, Rachel Christine, Speidel, Scott E, Thomas, Milt, Culbertson, Randie Marguerite, Peel, Kraig Kraig, Enns, Mark Mark, (2016) "Winter climate variables and their effect of feed intake in Bos taurus bulls" J. Anim. Sci. 94(E. Suppl. 5) E606

Culbertson, Randie Marguerite, Thomas, Milt, Leachman, L. L., Enns, Mark Mark, Speidel, Scott E, (2016) "Effect of heterosis on pulmonary arterial pressure in beef cattle" CSU Grad Showcase

Enns, Mark Mark, Speidel, Scott E, (2016) "Understanding Cow Maintenance" The American Simmental Register 30 2 22-24

Holt, Timothy N, Crawford, Natalie Faye, Thomas, Milt, Holt, Timothy N, Speidel, Scott E, Enns, Mark Mark, (2016) Heritabilities and genetic correlations of pulmonary arterial pressure and performance traits in Angus cattle at high altitude Journal of Animal Science 94 11 4483-4490

Speidel, Scott E, Enns, Mark Mark, (2016) "Report to the Red Angus Association of America. Results of EPD Grouping Strategies for Stayability" Red Angus Association of America

Enns, Mark Mark, Speidel, Scott E, (2016) "Growing Profit by Understanding Cow Maintenance Efficiency and Maintenance Requirement in an Animal and Systems Context" Progress on the Prairie: 2016 Beef Improvement Federation Annual Meeting and Symposium 29-35

Enns, Mark Mark, Speidel, Scott E, (2016) "Growing profit by understanding cow maintenance efficiency and maintenance requirements in an animal and systems context." Beef Improvement Federation 30-31

Boldt, Ryan John, Speidel, Scott E, Enns, Mark Mark, (2016) "Report to the American Gelbvieh Association. Results of analysis for prototype Stayability EPD requiring consecutive carvings." American Gelbvieh Association

Culbertson, Randie Marguerite, Speidel, Scott E, Enns, Mark Mark, (2016) "Report to Leachman Cattle of Colorado. Results of Development of Stayability EPD." Leachman Cattle of Colorado

Culbertson, Randie Marguerite, Speidel, Scott E, Enns, Mark Mark, (2016) "Report to Leachman Cattle of Colorado. Results of Development of Pulmonary Arterial Pressure EPD." Leachman Cattle of Colorado

Speidel, Scott E, (2016) "Report to Zoetis, heritability and genetic correlations between Brahman traits." Zoetis

Blackburn, H., Thomas, Milt, Enns, Mark Mark, Speidel, Scott E, Paiva, S., (2015) "A livestock database for long term storage and use of genomic and other associated information" Plant and Animal Genome XXIII Abstract W142

Zeng, Xi, Holt, Timothy N, Enns, Mark Mark, Speidel, Scott E, Thomas, Milt, (2015) "Angus cattle at high altitude: Relationship between age and pulmonary arterial pressure" Proc. West. Sect. Am. Soc. Anim. Sci. 66 119-121

Zamorano-Algandar, R., Correa-Calderon, A., Sanchez-Castro, M., Rincon, G., Medrano, J.F., Hernandez, A., Luna-Nevarez, G., Speidel, Scott E, Enns, Mark Mark, Thomas, Milt, Luna-Neverez, P., (2015) "Candidate gene molecular breeding value prediction of reproductive performance in Holstein dairy cows managed under heat stress conditions from southern Sonora in Mexico" Proc. West. Sect. Am. Soc. Anim. Sci. 66 249-252

Culbertson, Randie Marguerite, Speidel, Scott E, Thomas, Milt, Enns, Mark Mark, (2015) "Effects of beef cow milk production levels on longevity from Colorado State University’s Beef Improvement Center" Proc. West. Sect. Am. Soc. Anim. Sci. 66 111-113

Hernandez, A., Sanchez-Castro, M., Zamorano-Algandar, R., Luna-Nevarez, P., Rincon, G., Medrano, J.F., Speidel, Scott E, Enns, Mark Mark, Thomas, Milt, (2015) "Genotypes within the prolactin and GH-IGF1 pathways association with 305 d milk yield in heat stressed lactating Holstein cows" Proc. West. Sect. Am. Soc. Anim. Sci. 66 114-118

Cockrum, Rebecca, Holloway, C., Zeng, Xi, Crawford, Natalie Faye, Neary, J.M., Holt, Timothy N, Blackburn, H., Speidel, Scott E, Enns, Mark Mark, Thomas, Milt, (2015) "Intrinsic response to hypoxic stress associated with cellular metabolism an inflammation in beef cattle." Plant and Animal Genome XXIII Abstract P0169

Crawford, Natalie Faye, Speidel, Scott E, Zeng, Xi, Holt, Timothy N, Thomas, Milt, Enns, Mark Mark, (2015) "Multivariate analysis of genetic relationships between pulmonary arterial pressure and performance traits in an Angus herd at high elevation" Proc. West. Sect. Am. Soc. Anim. Sci. 66 126-128

Culbertson, Randie Marguerite, Speidel, Scott E, Peel, Kraig Kraig, Cockrum, Rebecca, Thomas, Milt, Enns, Mark Mark, (2015) Optimum measurement period for evaluating feed intake traits in beef cattle J. Anim. Sci. 93 1-9

Saad, H.M., Enns, Mark Mark, Thomas, Milt, Speidel, Scott E, (2015) "Performance losses due to selection for low birth weight versus calving ease: a simulation study in beef cattle" Proc. West. Sect. Am. Soc. Anim. Sci. 66 129-132

Canovas, A.A., Cockrum, Rebecca, Brown, R.D., Riddle, S.K., Neary, J.M., Holt, Timothy N, Krafsur, Greta M, Medrano, J.F., Islas-Trejo, A., Enns, Mark Mark, Speidel, Scott E, Stenmark, K.R., Thomas, Milt, (2015) "Polymorphisms and splice variants in a polygenic disease induced by high-altitude in Angus cattle using RNA-Sequencing and systems biology" Abstr. Soc. Españ. Genética.

Bailey, D.W., Thomas, Milt, Holt, Timothy N, Stephenson, M.B., Enns, Mark Mark, Speidel, Scott E, (2015) "Relationships of pulmonary arterial pressure and terrain use of beef cows grazing high-altitude foothills rangeland" Proc. West. Sect. Am. Soc. Anim. Sci. 66 99-103

Dias, M.M., Canovas, A., Mantilla-Rojas, C., Medrano, J.F., Thomas, Milt, Speidel, Scott E, Enns, Mark Mark, Rivera-Acuna, F., Luna-Nevarez, P., Riley, D.G., (2015) "Single nucleotide polymorphisms associated with growth, fertility, and first-calf survival traits in Brangus heifers managed under semi-desert extensive conditions in southern Sonora" Tex. A&M University CONACYT (MX) Symposium

Dias, M.M., Canovas, A., Mantilla-Rojas, C., Riley, D.G., Luna-Nevarez, P., Speidel, Scott E, Enns, Mark Mark, Dias, I.S.D.P., Souza, F.R.P., Medrano, J.F., Oliveira, H.N., Thomas, Milt, (2015) "SNP query in candidate genes that affect puberty in Bos indicus-influenced heifers" Proc. West. Sect. Am. Soc. Anim. Sci. 66 104-107

Canovas, A., Cockrum, Rebecca, Brown, R.D., Riddle, S.K., Neary, J.M., Holt, Timothy N, Krafsur, Greta M, Garry, Franklyn B, Medrano, J.F., Islas-Trejo, A., Enns, Mark Mark, Speidel, Scott E, Stenmark, K.R., Thomas, Milt, (2015) "Transciptomics and systems biology of high altitude disease in Angus cattle" Plant and Animal Genome XXIII Abstract P0310

Boldt, Ryan John, Speidel, Scott E, Thomas, Milt, Enns, Mark Mark, (2015) "Variance components for genetic evaluation of body condition score in beef cattle" Proc. West. Sect. Am. Soc. Anim. Sci. 66 108-110

Zeng, Xi, Speidel, Scott E, Enns, Mark Mark, (2015) "Report to Powerline Genetics. Incorporation of external sire EPD into growth and carcass evaluations." Powerline Genetics

Boldt, Ryan John, Enns, Mark Mark, Thomas, Milt, Speidel, Scott E, (2015) "Report to the Red Angus Association of America. Research Update: Red Angus Next Generation Fertility genetic evaluation" Red Angus Association of America

MacNeil, Michael D, Enns, Mark Mark, Newman, Scott, Neilsen, Merlin, Mokolobate, M C, Speidel, Scott E, Scholtz, M M, Cassady, Joe P, (2015) "Background for Guidelines to Facilitate Enhanced Genetic Potentials for Cow Efficiency" 47th Beef Improvement Federation Conference Proceedings

Cockrum, R.R., Zeng, X., Berge, N.F., Neary, J.M., Garry, F.B., Holt, Timothy N, Blackburn, H.D., Thomas, Sean Patrick, Speidel, S.E., Garrick, D.J., Enns, R.M., Thomas, M.G., (2014) "Angus cattle at high altitude: genetic relationships and initial genome wide association analyses of pulmonary arterial pressure" WCGALP

Culbertson, M.M., Speidel, Scott E, Thomas, M.G., Keenan, L., Enns, R.M., (2014) "Effect of genetics level of beef cow milk production on longevity in diverse environments" WCGALP

Speidel, Scott E, S., , Cockrum, Rebecca, Salak-Johnson, J. L., Chase, C. C. L., Thomas, Milt, Peel, Kraig Kraig, Enns, Mark Mark, (2014) "Genetic analysis of receiving weight, ultrasound back fat, ultrasound rib eye area, ultrasound percent intramuscular fat, and bovine respiratory disease in feedlot cattle" WCGALP

Zeng, X., Cockrum, R.R., Berge, N.F., Neary, J.M., Garry, F.B., Holt, Timothy N, Blackburn, H.D., Speidel, S.E., Garrick, D.J., Enns, R.M., Thomas, M.G., (2014) "Genetic correlation and genome wide association study of pulmonary arterial pressure and post weaning growth traits in Angus heifers from a high altitude breeding program" WCGALP

Berge, N.F., Speidel, S.E., Zeng, X., Culbertson, M.M., Thomas, M.G., Enns, R.M., (2014) "Genetic relationships between pulmonary arterial pressure and performance traits in Colorado State University Beef Improvement Center Angus herd" WCGALP

Boldt, R.J., Culbertson, M.M., Berge, N.F., Thomas, M.G., Holt, Timothy N, Speidel, S.E., Enns, R.M., (2014) "Phenotypic analysis of pulmonary arterial pressure and feed intake data in cattle" WCGALP

Welch, Cassie, Speidel, Scott E, Crews, Denny, Ahola, Jason Kee, Hill, Rod A, (2014) "Relationships between maintenance energy EPD and performance measures of progeny from Red Angus sires divergent for maintenance energy EPD" Journal of Animal Science 92 e-suppl 2

Speidel, Scott E, Thomas, Milt, (2013) "Cortisol, interleukin 8, and immunoglobulin G ratios predict treatment for bovine respiratory disease in feedlot cattle. " J Anim Sci 91(E-Suppl. 2):486

Zeng, Xi, Speidel, Scott E, Thomas, Milt, Enns, Mark Mark, (2013) "Estimating Economic Values of Traits Belonging to Cattle in Maternal Beef Production. Proc. West. Sect. Am. Soc. An. Sci." American Society of Animal Science

Zeng, Xi, Speidel, Scott E, Thomas, Milt, Enns, Mark Mark, (2013) "Estimating Economic Values of Traits Belonging to Cattle in Maternal Beef Production. Proc. West. Sect. Am. Soc. An. Sci." Proc. West Sect. Am. Soc. Anim. Sci. 64 165-168

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