Brief Summary of Minutes of Annual Meeting

NCERA-199 Implementation and Strategies for National Beef Cattle Genetic Evaluation 2010 Meeting Minutes October 21-22, 2010 Fort Collins, CO Chair: Dr. Denny Crews Secretary: Dr. Matt Spangler The business meeting was called to order by Chairman Crews at approximately 3:30 PM on Thursday, October 21. The meeting was reconvened at 10 AM on Friday, October 22, 2010. A quorum was established as a majority of the committee members were in attendance. Meeting attendees included: Dr. Jennifer Bormann Dr. Denny Crews Dr. Mauricio Elzo Dr. Mark Enns Dr. Rohan Fernando Dr. Dorian Garrick Dr. Kathy Hanford Dr. Maynard Hogberg (AA) Dr. Lauren Hyde Dr. Steve Kachman Dr. Larry Kuehn Dr. Ignacy Misztal Dr. Wade Shafer Dr. Matt Spangler Dr. Mark Thallman Dr. Rob Tempelman Dr. Robert Williams Dr. Bob Weaber Dr. Brent Woodward Dr. Warren Snelling (guest) Old Business: Chairman Crews requested that other old business be brought forward. No old business was presented to the meeting floor. New business: Chairman Crews and Dr. Spangler solicited proposed changes to the current objectives of the project narrative of NCERA-199. The committee as a whole developed ideas based on the needs of the beef industry and foreseeable challenges related to methodology and producer education. A list of focus areas was developed. Chairman Crews requested that the committee members review the suggested additions and changes to the project narrative in preparation for renewal and requested volunteers to lead the writing of the renewal. Committee members Bormann and Spangler volunteered. Chairman Crews opened nominations from the floor for the chair position. Dr. Ignacy Misztal (University of Georgia) was nominated by Dr. Dorian Garrick but declined nomination due to an upcoming sabbatical. Dr. Misztal indicated that he would be willing to serve in this capacity in 2012. Dr. Garrick then nominated Dr. Robert Williams (American International Charolais Association). The motion was seconded by and adopted by acclamation. Chairman Crews then called for nominations from the floor for the position of secretary. Dr. Larry Kuehn was nominated and was carried unanimously. Chair-elect Dr. Williams proposed the next annual meeting be held in Kansas City, MO. Chairman Crews called for other new business to be brought forward. No other new business was presented to the meeting floor. The meeting was adjourned at 11 AM.

NCERA-199 2009 Accomplishments Accomplishments: The 2010 annual meeting of the NCERA-199 group was held October 21-22, 2010 in Fort Collins, Colorado. The NCERA-199 morning session featured speakers from breed associations and allied industry centered on upcoming challenges related to predicting genetic merit of beef cattle. Speakers included Dr. Wade Shafer and Dr. Lauren Hyde (American Simmental Association), Dr. Sally Northcutt (American Angus Association), and Dr. Kent Andersen (Pfizer Animal Genetics). Following the presentations the morning speakers formed a panel for question and answer from the rest of the committee members. In the afternoon committee members Spangler, Misztal, and Kuehn gave presentations centered on different aspects of including genomic information into breeding value predictions and proposed methods of validation. The following day, Dr. Mark Enns reported on the online graduate course modules offered by the National Beef Cattle Evaluation Consortium (NBCEC) and funded by the Higher Education Challenge Grant Program in the U.S. Department of Agriculture Cooperative State Research, Education, and Extension Service, and began in August 2007. Committee members continue to host the Brown Bagger series presented by the National Beef Cattle Evaluation Consortium. The series is designed as a train-the-trainer curriculum and reaches educators, state and regional extension personnel and producers across the country. The series provides timely research based information in the areas of quantitative genetics, breeding systems, molecular genetics and selection system implementation issues. In 2010, 5 sessions were held with approximately 75 participants per session, an increase of over 25 participants from 2009. Members of the committee also planned and conducted a two-day symposium on the current status of molecular based selection in the beef industry in Clay Center Nebraska. The proceedings of this symposium, in the form of seven fact sheets, are available on the University of Nebraska Beef Production website. The National Beef Cattle Evaluation Consortium, which is led by members of this committee, has developed a number of multi-institution teams designed to collect and analyze data to address a number of distinct research needs in the area of beef cattle genetics. These teams have been extramurally funded and are investigating the quantitative and molecular genetic aspects of disease resistance, fatty acid and mineral composition of beef products, heifer fertility, cow longevity and adaptation, and a project centered on the integration of molecular information into National Cattle Evaluations (NCE) that engages over twenty beef cattle producers from six states serving as a truly integrated (research and extension) project. This project as built an extensive repository of DNA samples. Members of this committee along with the NBCEC have developed a working group focused on feed intake and measures of efficiency as well. In total committee members participated in three USDA Feed Efficiency grants that were submitted during the summer of 2010. Further, the NBCEC has planned a two-day workshop centered on issues related to successful and seamless integration of genomic data into NCE. Members of this committee served as the planning committee for this event and as speakers.

Publications for members of NCERA-199, 2010 Bold author names indicate members of NCERA-119 * indicates a collaboration between members of NCERA-119 1. Aguilar, I. S. Tsuruta, and I. Misztal. 2010. Computing options for multiple-trait test-day random regression models while accounting for heat tolerance. J. Anim. Breed. Genet. 127(3):235-241. 2. Aguilar, I., I. Misztal, D. L. Johnson, A. Legarra, S. Tsuruta, and T. J. Lawlor. 2010. A unified approach to utilize phenotypic, full pedigree, and genomic information for genetic evaluation of Holstein final score. J. Dairy Sci. 93:743:752. 3. Aguilar, I., I. Misztal, and S. Tsuruta. 2010. Short Communication: Genetic trends of milk yield under heat stress for US Holsteins. J. Dairy Sci. 93:1754-1758. 4. Aguilar, I., I. Misztal , A. Legarra , S.Tsuruta. Efficient computation of genomic relationship matrix and other matrices used in single-step evaluation. J, Anim. Breed. Genet. (accepted). 5. Aguilar, I., I. Misztal, A. Legarra, and S. Tsuruta. 2010. Efficient computations of genomic relationship matrix and other matrices used in the single-step evaluation. Proc. 9th World Congress Gen. Appl. Livest. Prod., Leipzig, Germany. CD-ROM communication 768. 6. Austin, K. J., J. L. Seabrook, T. E. Engle, R. K. Peel, C. M. McAllister, B. W. Brigham, R. M. Enns, R. L. Weaber, H. Van Campen, G. H. Loneragan, J. L. Salak-Johnson, and C.C. L. Chase. 2010. The effect of morbidity on feedlot performance and carcass quality in feedlot steers., J. Anim. Sci., Vol. 88, (E-Supplement 2). 10. (Abstr.). 7. Barbosa Da Silva, M., Sonstegard, T.S., Thallman, R.M., Connor, E.E., Schnabel, R.D. and Van Tassell, C.P., 2010, Characterization of DGAT1 effects in a sample of North American Holstein cattle populations, Animal Biotechnology (21(2):88-99). 8. Bertrand, J. K., and I. Misztal. 2010. New developments in beef cattle genetic evaluation. Proc. 9th World Congress Gen. Appl. Livest. Prod., Leipzig, Germany. CD-ROM communication 448. 9. Bloemhof, S., E. F. Knol, A. Kause, and I. Misztal. 2010. Application of a crossbred model reveals additional genetic variation in reproduction traits of commercial females. J. Anim Sci. 87 (Suppl. 1):152. 10. Boonkum, W., I. Misztal, M. Duangjinda, V. Pattarajinda, S. Tumwasorn, and S. Buaban. Effects of heat stress on genetic component estimates for milk yield in Thai crossbred Holsteins. J. Dairy Sci. (accepted). 11. Boonkum, W., I. Misztal, M. Duangjinda, V. Pattarajinda, S. Tumwasorn, and S. Buaban. Short communication: Genetic effects of heat stress on days open for Thai Holstein crossbreds.. J. Dairy Sci. (accepted) 150. 12. Bormann, J. Minick, D.W. Moser, and T.T. Marston. 2010. Feed intake and performance of heifers sired by high and low residual feed intake Angus bulls. Professional Animal Scientist. 26:328-331. 13. Bormann, J. M. and D.E. Wilson. 2010. Calving day and age at first calving in Angus heifers. J. Anim. Sci. 88:1947-1956. 14. Brigham, B. W., C. M. McAllister, R. K. Peel, H. Van Campen, R. L. Weaber, G. H. Loneragan, J. L. Salak-Johnson, C. C. L. Chase, E. J. Pollak, and R. M. Enns. 2010. The relationship of bovine respiratory disease and carcass ultrasound measures. J. Anim. Sci., Vol. 88, (E-Supplement 2). 41. (Abstr.). 15. Bullock, K. D., R. M. Lewis, R. L. Weaber, B. B. Lockee, D. R. Strohbehn, D. J. Garrick, and E. J. Pollak. 2010. Distance education: a short-term solution to training graduates and producers by a shrinking population of quantitative geneticists. Pages 916-919 in Proc. 9th World Cong. Genet. Appl. Livest. Prod., Leipzig, Germany (CD-ROM). 16. Bullock, K. D., R. M. Lewis, R. L. Weaber, B. B. Lockee, D. R. Strohbehn, D. J. Garrick and E. J. Pollak. 2010. Distance education: a short-term solution to training graduates and producers by a shrinking population of quantitative geneticists. Submitted for 9th World Congress on Genetics applied to Livestock Production, August 2010, Leipzig, Germany. 17. Casas, E., Thallman, R.M., Kuehn, L.A., and Cundiff, L.V., 2010, Postweaning growth and carcass traits in crossbred cattle from Hereford, Angus, Brangus, Beefmaster, Bonsmara, and Romosinuano maternal grandsires, Journal of Animal Science (88:102-108). 18. Casas, E., Thallman, R.M., and Cundiff, L.V., Birth and weaning traits in crossbred cattle from Hereford, Angus, Brahman, Boran, Tuli, and Belgian Blue sires. Journal of Animal Science (Submitted 5/7/10). 19. Chansomboon, C.*, M. A. Elzo, T. Suwanasopee, and S. Koonawootrittriron. 2009. Genotypic Polymorphisms for Adiponectin and Follicle Stimulating Hormone Receptor Genes Related to Weaning-to-First Service Interval and Litter Traits in a Commercial Landrace-Large White Swine Population in Northern Thailand. Thai J. Agric. Sci. 42:237-245. 20. Chansomboon, C. *, M. A. Elzo, T. Suwanasopee, and S. Koonawootrittriron. 2010. Estimation of genetic parameters and trends for weaning-to-estrus interval and litter traits in a Landrace-Large White swine population in Northern Thailand. Asian-Aust. J. Anim. Sci. 23:543-555. 21. Chen,C. Y., I. Misztal, S. Tsuruta, W.O. Herring,J. Holl, and M. Culbertson. 2010. Influence of heritable social status on daily gain and feeding pattern in pigs. J. Animal Breed. Genet. 127(2):107-112. 22. Chen,C. Y., I. Misztal,S. Tsuruta,B. Zumbach, W.O. Herring,T. Long, and M. Culbertson. 2010. Estimation of genetic parameters of feed intake and daily gain in Durocs using data from electronic swine feeders. J. Animal Breed. Genet. 27(3):230-234.140. 23. Chen,C. Y., I. Misztal,S. Tsuruta,B. Zumbach, W.O. Herring,T. Long, and M. Culbertson. 2010. Genetic analyses of stillbirth in relation to litter size using random regression models. J. Animal Sci. (accepted). 24. Chen, C. Y., I. Misztal, I. Aguilar+, S. Tsuruta, T. H. E. Meuwissen, S. E. Aggrey, and W. M. Muir. 2010. Genome wide marker assisted selection combining all pedigree phenotypic information with genotypic data in one step: An example using broiler chickens. J. Animal Sci. (accepted). 25. Chen, C. Y., I. Misztal, I. Aguilar, S. Tsuruta, T. H. E. Meuwissen, S. E. Aggrey, and W. M. Muir. 2010. Genome wide marker assisted selection in chicken: making the most of all data, pedigree, phenotypic, and genomic in a simple one step procedure. Proc. 9th World Congress Gen. Appl. Livest. Prod., Leipzig, Germany. CD-ROM communication 288. 26. Chen, C. Y., I. Misztal, I. Aguilar, S. Tsuruta, T. H. E. Meuwissen, S. E. Aggrey, and W. M. Muir. 2010. Genetic evaluation including phenotypic, full pedigree, and genomic information: An application in broiler chickens. J. Anim Sci. 87 (Suppl. 1):166. 27. Chen, C. Y., I. Misztal, S. Tsuruta, W. O. Herring, J. Holl, and M. Culbertson. 2010. Use of random regression models for the genetic analysis of farrowing survival in pigs. J. Anim Sci. 87 (Suppl. 1):222. 28. Davis, M. E., and R. C. M. Simmen. 2010. Estimates of inbreeding depression for serum insulin-like growth factor I concentrations, body weights, and body weight gains in Angus beef cattle divergently selected for serum insulin-like growth factor I concentration. J. Anim. Sci. 88:552- 561. 29. Dib, M. G., L. D. Van Vleck, and M. L. Spangler. 2010. Genetic Analysis of Mature Size in American Angus Cattle. In UNL Beef Cattle Research Report. 30. Echternkamp, S.E., and Thallman, R.M., Factors affecting pregnancy rate to estrous synchronization and fixed-time AI in beef cattle, Journal of Animal Science (Submitted 9/28/10). 31. Elzo, M. A. and D. G. Riley. 2010. Post-Weaning Feed Efficiency and Growth in Brahman, Angus, and Brahman x Angus Crossbred Cattle. The Brahman Journal, August 2010 Issue, Pages 12 and 42. 32. Elzo, M. A., C. Chansomboon*, T. Suwanasopee, and S. Koonawootrittriron. 2010. Genetic parameters and trends for weaning-to-first service interval and litter traits in a swine population composed of Landrace, Large White, and their crosses in Thailand. Proc. 14th Animal Science Congress of the Asian-Australasian Association of Animal Production Societies, Pingtung, Taiwan, August 23-27, 2010. 33. Elzo, M. A., D. D. Johnson, G. C. Lamb, T. D. Maddock, R. O. Myer, D. G. Riley, G. R. Hansen, J. G. Wasdin, and J. D. Driver. 2010. Heritabilities and genetic correlations between postweaning feed intake, growth, and ultrasound traits in a multibreed Angus-Brahman cattle population in the subtropics. Paper 0087_PP1-47 in Proc. 9th World Congress on Genetics Applied to Livestock Production. Leipzig, Germany, August 1-6, 2010. 34. Enns, R. M., R. L. Weaber, H. Van Campen, G. H. Loneragan. 2010. Factors influencing onset of disease and subsequent effects on feedlot performance. J. Anim. Sci., Vol. 88, (E-Supplement 2). 422. (Abstr.). 35. Forni, S., I. Aguilar, I. Misztal, and N. Deeb. 2010. Genomic relationships and biases in the evaluation of sow litter size. Proc. 9th World Congress Gen. Appl. Livest. Prod., Leipzig, Germany. CD-ROM communication 506. 36. Forni, S., I. Aguilar, I. Misztal, and N. Deeb. 2010. Scaling the genomic relationship matrix for single-step evaluation using phenotypic, pedigree and genomic information. J. Anim Sci. 87 (Suppl. 1):166 37. Garcia, M.D., Thallman, R.M., Wheeler, T.L., Shackelford, S.D., and Casas, E., 2010, Effect of bovine respiratory disease and overall pathogenic disease incidence on carcass traits, Journal of Animal Science (88:491-496). 38. Garmyn, A.J., D.W. Moser, R.A. Christmas, and J.Minick Bormann. 2010. Estimation of genetic parameters and affects of cytoplasmic line on scrotal circumference and semen quality traits in Angus bulls. J. Anim. Sci.doi:10.2527/jas.2010-3534. 39. Hafla, A. N., P. A. Lancaster, G. E. Carstens, D. W. Forrest, J. T. Fox, T. D. A. Forbes, M. E. Davis, R. D. Randel, and J. W. Holloway. 2010. Relationships between feed efficiency traits, and scrotal circumference and semen-quality traits in yearling bulls. J. Anim. Sci. (submitted). 40. Hanford, K.J., Thallman, R.M., Kachman, S.D., Kuehn, L.A., Quaas, R.L., Tempelman, R.J., Fernando, R.L., and Pollak, E.J., 2010, Estimation of the proportion of variation accounted for by DNA tests. I: Genetic variance. Proceedings of the. 9th World Congress on Genetics Applied to Livestock Production, Leipzig, Germany. August 1-6, 2010. (CD-ROM Communication No. 0822). 41. Herring, W., J. Holl, M. Culbertson, I. Misztal, C.Y. Chen, J. Fix, and T. See. 2010. Use of terminal and nucleus birth weights to improve commercial pig performance. Proc. 9th World Congress Gen. Appl. Livest. Prod., Leipzig, Germany. CD-ROM communication 284. 42. Hyde, L.R. 2010. 12 tips for using NALFs new web tools. Limousin World. April:120. 43. Hyde, L.R. 2010. NALFs new members-only site. Limousin World. January:81. 44. Hyde, L.R. 2010. Percentiles, trends helpful for commercial cattle producers. Bottom Line. Spring:12-13. 45. Hyde, L.R. 2010. Research illustrates Limousin feed efficiency. Bottom Line. Winter:25-27. 46. Hyde, L.R. 2010. UltraMate: strategic selection. Bottom Line. Spring:8. 47. Johanson, J. M., P. J. Berger, S. Tsuruta, and I. Misztal. A Bayesian Threshold-Linear Model Evaluation of Perinatal Mortality, Dystocia, Birth Weight, and Gestation Length in a Holstein Herd. J. Dairy Sci. (accepted). 48. Johnson, J. S., B. Scharf, R. L. Weaber, P. A. Eichen, and D. E. Spiers. 2010. Patterns of heat response and adaptation on summer pasture: A comparison of heat sensitive (Angus) and tolerant (Romosinuano) cattle. J. Anim. Sci., Vol. 88, (E-Supplement 2). 26. (Abstr.). 49. Koduru, V. K. R., S. Tsuruta, M. Lukaszewicz, I. Misztal, T. J. Lawlor. Studies on changes of estimated breeding values of U.S. Holstein bulls for final score from first to second crop of daughters. J. Appl. Genet. (accepted). 50. Koonawootrittriron, S. and M. A. Elzo. 2010. Challenges and opportunities for improvement in dairy production and genetic progress in Thailand. Proc. 14th Animal Science Congress of the Asian- Australasian Association of Animal Production Societies, Pingtung, Taiwan, August 23-27, 2010. 51. Koonawootrittriron, S., M. Elzo, T. Suwanasopee, P. Sopanarat, S. Prasanpanich, C. Chaimongkol, T. Tongprapi, and T. Ralukmun. 2010. D.P.O. Sire & Dam Summary 2009. Dairy Farming Promotion Organization, Ministry of Agriculture and Cooperatives of Thailand, Bangkok. p 1-56. 52. Kuehn, L.A., Keele, J.W., Bennett, G.L., McDaneld, T.G., Smith, T.P.L., Snelling, W.M., Sonstegard, T.S., and Thallman, R.M., 2010, Predicting breed composition using breed frequencies of 50,000 markers from the U.S. Meat animal research center 2,000 bull project. Proceedings of the. 9th World Congress on Genetics Applied to Livestock Production, Leipzig, Germany. August 1-6, 2010. (CD-ROM Communication No. 0283). 53. Kuehn, L.A., and Thallman, R.M., 2010, Mean EPDs reported by different breeds. Proceedings of the Beef Improvement Federation 42nd Annual Research Symposium and Annual Meeting, Columbia, MO. June 28 - July 1, 2010. (Pages 93-97). 54. Kuehn, L.A., Van Vleck, L.D., Thallman, R.M., and Cundiff, L.V., 2010, Across-breed EPD tables for the year 2010 adjusted to breed differences for birth year of 2008. Proceedings of the Beef Improvement Federation 42nd Annual Research Symposium and Annual Meeting, Columbia, MO. June 28 - July 1, 2010. (Pages 71-92). 55. Kuehn, L.A., Keele, J.W., Bennett, G.L., McDaneld, T.G., Smith, T.P., Snelling, W.M., Sonstegard, T.S., and Thallman, R.M., Predicting breed composition using breed frequencies of 50,000 markers from the U.S. Meat Animal Research Center 2,000 bull project, Journal of Animal Science (Submitted 9/22/10). 56. Lewis, R. M., B. B. Lockee, L. Krishnamurthy, J. A. Meese, and D. A. Boynton. 2010. Experiential learning on-line: CyberSheep. Pages 930-933 in Proc. 9th World Cong. Genet. Appl. Livest. Prod., Leipzig, Germany (CD-ROM). 57. Lewis, R. M., B. B. Lockee, M. S. Ames, G. C. Márquez, R. M. Enns, J. M. Rumph, and E. J. Pollak. 2010. Animal Breeding and Quantitative Genetics On-line: a solution to a dilemma in graduate education. Page 22 in Proc. North Amer. College Teacher Agric., The Penn Stater Conference Center Hotel, June 22-25, Penn State. 58. MacNeil, M. D., J. D. Nkrumah, B. W. Woodward, and S. L. Northcutt. 2010. Genetic evaluation of Angus cattle for carcass marbling using ultrasound and genomic indicators. J. Anim. Sci. 88: 517- 522. 59. MacNeil, M. D., S. L. Northcutt, R. D. Schnabel, D. J. Garrick, B.W. Woodward and J. F. Taylor. 2010. Genetic correlations between carcass traits and molecular breeding values in Angus cattle. Proc. 9th World Congr. Genet. Appl. Livest. Prod. (in press). 60. McAllister, C. M., B. W. Brigham, R. K. Peel, H. Van Campen, G. H. Loneragan, R. L. Weaber, J. L. Salak-Johnson, and C. C. L. Chase. 2010. Methods to predict true disease prevalence in beef cattle. J. Anim. Sci., Vol. 88, (E-Supplement 2). 28. (Abstr.). 61. McClure, M. C., N. S. Morsci, R. D. Schnabel, J. W. Kim, P. Yao, M. M. Rolf, S. D. McKay, S. J. Gregg, R. 62. H.Chapple, S. L. Northcutt, and J. F. Taylor. 2010. A genome scan for quantitative trait loci influencing carcass, post-natal growth, and reproductive traits in commercial Angus cattle. Animal Genetics (in press). 63. Minton, N. O., R. L. Weaber, R. L. Kallenbach, and M. S. Kerley. 2010. Comparison of a feed efficiency measure for steer progeny produced from divergently mated sires and dams phenotyped for residual feed intake. J. Anim. Sci., Vol. 88, (E-Supplement 2). 41. (Abstr.). 64. Misztal, I. 2010. Genomic Information: Gene Effects or Better Relationships? Proc. 59th Annual National Breeders Roundtable. 79-89. 65. Misztal, I., I. Aguilar, A. Legarra, D. Johnson, S. Tsuruta, and T. J. Lawlor. 2010. A unified approach to utilize phenotypic, full pedigree, and genomic information for genetic evaluation. Proc. 9th World Congress Gen. Appl. Livest. Prod., Leipzig, Germany. CD-ROM communication 50. 66. Misztal, I. 2010. Studies on heat stress in dairy cattle and pigs. Proc. 9th World Congress Gen. Appl. Livest. Prod., Leipzig, Germany. CD-ROM communication 625. 67. Misztal, I., I. Aguilar, A. Legarra, and T. J. Lawlor. 2010. Choice of parameters for single-step genomic evaluation for type. J. Dairy Sci. 93(Suppl. 1):166. 68. Misztal, I., I. Aguilar, A. Legarra, and T. J. Lawlor. 2010. Choice of parameters for single-step genomic evaluation for type. Proc. 61th Ann. Mtg. EAAP:254. 69. Myer, R. O. and M. A. Elzo. 2010. Effect of residual feed intake, gender, and breed composition on blood urea nitrogen concentration in an Angus-Brahman multi-breed herd. J. Anim. Sci. 88 (E-Suppl. 2):706-707. 70. NALF. 2010. International Limousin Genetic Evaluation Manual. Spring ed. North American Limousin Foundation, Englewood, CO. 71. Pascoa, L.*, A. de los Reyes, M. A. Elzo, J. L. Ferreira, L. A. F. Bezerra, and R. B. Lobo. 2010. Relative contribution of effects included in contemporary groups, and their interactions, for adjusted and actual 120-d and 210-d weights in Nellore cattle. VIII Brazilian Symposium Genetic Improvement, July 1-2, 2010, Maringa, Parana, Brazil. 72. Pepper, A. R., R. M. Enns, R. L. Weaber, H. Van Campen, G. H. Loneragan, J. L. Salak-Johnson, C. C. L. Chase, R. K. Peel, J. J. Wagner, D. H. Crews, Jr., and E. J. Pollak. 2009. Correlations of exit velocity and average chute score with carcass traits in feedlot steers. J. Anim. Sci. Vol. 87(E- Suppl. 3): 139. 73. Peters, S. O., K. Kizilkaya, D. J. Garrick, R. L. Fernando, J. M. Reecy, Z. L. Hu, R. L. Weaber, G. A. Silver and M. G. Thomas. 2010. Bayesian QTL inference and gene identification for first service conception rate in Brangus heifers. J. Anim. Sci., Vol. 88, (E-Supplement 2). 797. (Abstr.). 74. Peters, S. O., K. Kizilkaya, D. J. Garrick, R. L. Fernando, J. M. Reecy, R. L. Weaber, G. A. Silver, and M. G. Thomas. 2010. Bayesian QTL inference from whole genome growth and carcass analyses in Brangus heifers. Plant and Animal Genomes XVIII Conference, January 2010. 75. Prampree, S.*, S. Koonawootrittriron, M. A. Elzo, J. Sanpote, and B. Chomtee. 2010. Genetic Correlations between Milk Production of Dairy Cattle in Four Thai Regions. Pages 134-141 in Proc. 48th Kasetsart University Conference, February 3-5, 2010, Bangkok, Thailand. 76. Puitt, S.K., K.M. Rolfe, B.L. Nuttelman, W.A. Griffin, J.R. Benton, G.E. Erickson, D.C. Ciobanu, and M.L. Spangler. 2010. Association of myostatin on weight, intake, and carcass traits in crossbred steers adjusted to different endpoints. Midwest Animal Science Meetings (Accepted). 77. Qing, Q. 2010. Effect of Divergent Selection for Insulin-Like Growth Factor I (IGF-I) on Mature Weight and Growth Curves in Angus Cattle. M.S. Thesis. The Ohio State University, Columbus. 78. Rolf, M.M, J. F. Taylor, R. D. Schnabel, S. D. McKay, M. C. McClure, S. L. Northcutt and R. L. Weaber. 2010. Estimation of breeding values for feed efficiency in Angus cattle using a genomic relationship matrix. BMC Genetics (in press). 79. Rolf, M. M., J. F. Taylor, R. D. Schnabel, S. D. McKay, M. C. McClure, S. L. Northcutt, M. S. Kerley and R. L. Weaber. 2010. Impact of reduced marker set estimation of genomic relationship matrices on genomic selection for feed efficiency in Angus cattle. BMC Genet. 11:24. 80. Rolf, M. M., J. F. Taylor, R. D. Schnabel, S. D. McKay, M. C. McClure, and R. L. Weaber. 2010. Evaluation of model predicted feed intake data for genetic analysis and qtl discovery in beef cattle. Plant and Animal Genomes XVIII Conference, January 2010. 81. Rolf, M. M., J. F. Taylor, R. D. Schnabel, S. D. McKay, M. C. McClure, S. L. Northcutt, M. S. Kerley and R. L. Weaber. 2010. Use of BOVINESNP50 data for feed efficiency selection decisions in Angus cattle. Pages 103  117 in Proc. of the Beef Improvement Federations 42nd Annual Research Symposium and Annual Meeting, Columbia, MO. 82. Sarakul, M.*, S., Koonawootrittriron, M. A. Elzo, and T. Suwanasopee. 2010. Factors affecting genetic improvement for milk production of dairy cattle at farm level in Central Thailand. Proc. 14th Animal Science Congress of the Asian-Australasian Association of Animal Production Societies, Pingtung, Taiwan, August 23-27, 2010. 83. Scharf, B., M. J. Leonard, R. L. Weaber, T. Mader, L. Hahn and D. E. Spiers. 2010. Determinants of bovine thermal response to heat and solar radiation in the field environment. Intl. J. Biometeorology. (In press). 84. Scharf B., J. A. Carroll, D. G. Riley, C. C. Chase, Jr., S. W. Coleman, D. H. Keisler, R. L. Weaber and D.E. Spiers. 2010. Evaluation of physiological and blood serum differences in heat tolerant (Romosinuano) and heat susceptible (Angus) Bos taurus cattle during controlled heat challenge. J. Anim Sci. 88:2321-2336. 85. Scharf, B., J. S. Johnson, H. L. Vellios, R. L. Weaber, and D. E. Spiers. 2010. Changes in ruminal-rectal temperature relationship associated with consumption of endophyte infected tall fescue. J. Anim. Sci., Vol. 88, (E-Supplement 2). 852. (Abstr.). 86. Scholtz. A. J., S.W.P. Cloete, J.B. van Wyk, I. Misztal, E. du Toit, and T.C. de K. van der Linde. 2010. Genetic (co)variances between wrinkle score and absence of breech strike in mulesed and unmulesed Merino sheep using a threshold model. Animal Production Science. 50:210-218. 87. Simeone, R., I. Misztal, and I. Aguilar. 2010. Utility of genomic relationship matrix to identify genotyping errors. J. Anim Sci. 87 (Suppl. 1):166. 88. Smith, S. N., M. E. Davis, and S. C. Loerch. 2010. 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