SAES-422 Multistate Research Activity Accomplishments Report

Status: Approved

Basic Information

Participants

Buckley, Brent (buckley@hawaii.edu) - University of Hawaii; Burfening, Pete (pburfening@csrees.usda.gov) - USDA/CSREES; Crews, Denny (dcrews@agr.gc.ca) - AAFC-LRC; Cundiff, Larry (cundiff@email.marc.usda.gov) - ARS-USMARC; Enns, R.Mark (mark.enns@colostate.edu) - Colorado State University; Evans, John (jle@okstate.edu) - Oklahoma State University; Gaskins, Charles (gaskins@wsu.edu) - Washington State University; Gould, Lowell (lowell@lxcattle.com) - Red Angus Association of America; Herring, Andy (andy.herring@tamu.edu) - Texas A&M University; Hyde, Lauren (lauren@nalf.org) - North American Limousin Foundation; Kress, Don (dkress@montana.edu) - Montana State University; Rumph, Janice (janice@montana.edu) - Montana State University; Thomas, Milt (milthoma@nmsu.edu) - New Mexico State University; Van Vleck, L.Dale (dvan-vleck1@unl.edu) - ARS-USMARC/University of Nebraska

REPORT OF THE 2004 MEETING OF THE WESTERN REGION COORDINATING COMMITTEE IN BEEF CATTLE BREEDING RESEARCH (WCC-1)

Location of Meeting: Sioux Falls, SD

Date of Meeting: May 24-25, 2004

Host: In conjunction with 2004 Beef Improvement Federation Meeting hosted by South Dakota State University and South Dakota Cattlemen?s Association

Chair: Denny Crews, Ag-Canada

Administrative Advisor: Don Kress, Montana State University

MINUTES

The Western Region Coordinating Committee for Beef Cattle Breeding Research (WCC-1) convened in Sioux Falls, SD May 24-25, 2004. Twelve people were in attendance.

Website
Milt Thomas said that the website?s active and the current address is:

http://www.nmsu.edu/~wcc1

There have been some problems with hosting it at New Mexico State, so Brent Buckley offered to host the site and suggested that WCC-1 have its own website, not associated with any particular university. Brent determined several possible choices for domain names and will look further into obtaining one of the possible domains.

It was reiterated that breed associations, land grant universities, NCBA, etc. need to be made aware of our website so that they can put links on their sites to the WCC-1 site.

Resource Database
Mark Enns said that the database developed to address Objective 3 of the current petition is still progressing and that a group of MBA students at Colorado State are working on the development of it.

CSREES Report
Pete Burfening updated the group on CSREES issues.

Kress Report
Don Kress passed around the official participant list to make sure that information is correct and reiterated that there is a need for more of an extension presence on the WCC-1 committee. John Evans needs to update his extension ratios and Buckley will check again if he can become an official member which would increase the extension percentage.

Graduate Education
Janice Rumph presented the letter that Mike Tess (Animal & Range Sciences department head, Montana State) sent to the western region department heads requesting a meeting at the 2004 Western Section meetings to discuss possible partnerships across universities for graduate student education.

Courses that were taught at each university were compiled in a list to determine strengths/weaknesses in each department. A list of courses/topics that WCC-1 thought should be included in all graduate breeding programs was compiled as follows:

1. Computer programming/logic skills
Data management skills

2. Genetic prediction (set up and solve MME)

3. Understanding of simulation and its utility in an animal improvement and
production systems setting

4. Understanding of methods to combine quantitative and molecular data
quantitative genomics) including pedigree analysis and determining
probability of carrying certain genes (e.g. Founder effects)

5. Understanding of breeding systems/Crossbreeding systems/GxE
interactions/matching animal genotype to environment

6. Understanding of parameter estimation and pros/cons of different methods

Additional concepts to be integrated into above courses:
History of the discipline
Decision analysis (as it applies to quantitative and economic improvement)

The committee decided to draft a supporting letter to be sent to the various department heads by Mike Tess prior to the meeting at Western Sections. In the letter, 5-6 three credit courses need to be identified that would be included in a PhD program. Enns and Rumph will meet after the WCC-1 meeting to the draft the letter.

The National Beef Cattle Evaluation Consortium (NBCEC) should also be informed about the plans for any WCC-1 organized courses because NBCEC is planning on developing their own national online course, most likely seminar in nature.


DNA Validation
Enns requested a list of animal/data resources from each station that included number of animals that DNA could be collected from, phenotypes collected, etc. This list would be presented to the NBCEC as a possible source of populations to be used for validation of commercially available gene tests.

Station Reports
Station reports were presented by members in attendance.

Van Vleck
Dale Van Vleck (University of Nebraska ? Lincoln and ARS) presented a workshop entitled ?Genetic Evaluation with Molecular Information?.

2005 Meeting
The location, host, and chairperson for the 2005 WCC-1 meeting were agreed upon as follows:

Location: Las Cruces, New Mexico, in conjunction with Western Section ASAS meetings

Host: Milt Thomas, New Mexico State University

Chair: Andy Herring, Texas A&M

2006 & 2007 Meetings
No location has been selected for the 2006 meeting. Hawaii was originally suggested, but due to the 8th World Congress for Genetics Applied to Livestock Production being in Brazil and many members traveling to that in 2006, the suggestion of Hawaii has been pushed off to the 2007 meeting.

Accomplishments

Objective 1: Maintain and disseminate educational resources on the genetics of beef cattle including WCC-1 publications. The website is active and the current address is: http://www.nmsu.edu/~wcc1. Some arrangements have been made to possibly change the hosting of the website from New Mexico State to the University of Hawaii. The website contains most WCC-1 publications in pdf form for easy download.


Objective 2: Conduct research to contribute to the understanding of genetic association among economically important traits and their indicators. A member of the committee organized a session at the Beef Improvement Federation on applications of multiple trait selection technology in the beef industry. A second member of the committee made an invited presentation at the Beef Meeting envisioning the future implementations of multiple trait section technologies. Current users of multiple trait selection technologies developed by members of the committee include: Circle A Angus Sire Alliance, American International Charolais Association, and Beefbooster Alberta Ltd (Canada). Related developmental efforts are underway for American Hereford Association, American Simmental Association, Agricultural Research Council ? Animal Improvement Institute (South Africa), and Circle A Angus Sire Alliance. ABS Global Inc. has derived revenues in excess of $1.5 million from semen of Angus bulls identified as high value terminal sires.


Objective 3: Maintain a record of resources on pedigreed populations that could be used in quantitative and/or molecular studies. The database is still progressing and that a group of MBA students at Colorado State are working on the development of it.

Objective 4: Exchange information, discuss research results, plan new research, examine new developments, discuss future problems, plan cooperative research and share ideas for interdisciplinary involvement in beef cattle breeding. The annual WCC-1 meeting is the forum in which all of these are addressed.


Upcoming plans: Development of graduate level breeding courses is underway. These courses would be taught across the universities involved in WCC-1 in order to better utilize professor resources at each university.

Impacts

  1. Interactions and publications of WCC-1 provide leadership for the development of procedures to collect fertility trait data and use of these data in genetic prediction.
  2. Interactions and publications of WCC-1 provide leadership for the development of procedures to record genotype and evaluate the use of DNA polymorphisms in genetic prediction.
  3. WCC-1 members provide genetic evaluation services and expertise to numerous beef cattle breed associations throughout North America, calculating breeding values for more than 5 million cattle each year.
  4. WCC-1 members are active in development and promotion of genetic evaluations for economically relevant traits to be used for beef cattle selection decisions.
  5. WCC-1 members are a source of expertise regarding genetic technologies of the beef industry to our respective states and requesting breed associations.

Publications

Ahola, J.K., T.E. Engle, D.S. Baker, L.R. Sharpe, P.D. Burns, R.M. Enns and R.G. Mortimer. 2003. Impact of trace mineral supplementation and source on grazing beef cattle over a two-year period. Proc. West Sec. Am. Soc. An. Sci. Vol 54. 4 pages.


Ahola, J.K., T.E. Engle, D.S. Baker, L.R. Sharpe, P.D. Burns, R.M. Enns and R.G. Mortimer. 2003. Impact of trace mineral supplementation and source on grazing beef cattle over a two-year period. J. Anim. Sci. (Suppl. 1)


Amen, T. S., A. D. Herring, J. O. Sanders and C. A. Gill. 2004. Investigation of birth weight in Bos indicus-Bos taurus reciprocal backcross calves produced through embryo transfer. J. Anim. Sci. (Suppl. 1).


Anderson, D.C., D.D. Kress, T.M.M. Bernardini, K.C. Davis, D.L. Boss and D.E. Doornbos. 2003. The effect of scours on calf weaning weight. The Prof. Anim. Scientist 19:399


B.W. Brigham and R.M. Enns. Review of Recent Literature for Maternal effects on Real Time Ultrasound and Carcass Measures. Technical Report to the Red Angus Association of America. 6 pages.


Barham, B. L., J. C. Brooks, J. R. Blanton, Jr., A. D. Herring, M. A. Carr, C. R. Kerth and M. F. Miller. 2003. Effects of growth implants on the consumer perceptions of meat tenderness in beef steers. J. Anim. Sci. 81:3052-3056


Beauchemin, V.R., M.G. Thomas, C.C. Bailey, and G.A. Silver. 2004. Early weaning and cow/calf performance: Recent observations in desert Brangus. Commercial Brangus Edition 11:15-17.


Brigham, B.W., S. E. Speidel and R. M. Enns. Report to the American Braunvieh Association: Accuracy Changes


Bullock, K.D., E. J. Pollak, J.K. Bertrand, D. Garrick, R.M. Enns, B. Weaber, and D.E. Wilson. 2003. International beef cattle genetic evaluation in the United States and the role of the National Beef Cattle Evaluation Consortium. Proceedings of the 2003 Interbull meeting. Rome, Italy.


Burns, P.D., T.E. Engle, M.A. Harris, R.M. Enns, and J.C. Whittier. 2003. Effect of fish meal supplementation on plasma and endometrial fatty acid composition in non-lactating beef cows. Journal of Animal Science. 81:2840-2846.


Cleere, J. J., A. D. Herring, J. W. Holloway, C. R. Long, H. Lippke, M. F. Miller, W. E. Pinchak, F. M. Rouquette, and B. G. Warrington. 2003. Effect of grazing growth rate on subsequent feedlot and carcass traits in cattle. J. Anim. Sci. 81(Suppl. 1):167(Abstr.).


Cleere, J. J., A. D. Herring, J. W. Holloway, H. Lippke, C. R. Long, F. M. Rouquette Jr., B. G. Warrington, K. R. Pond, and M. F. Miller. 2003. Winter pasture grazing performance effects on feedlot and carcass traits in cattle. American Society of Animal Science Southern Section Annual Meeting.


Cleveland, M.A., R.M. Enns, W.J. Umberger, and B.L. Golden. 2003. Simulation of net return using days to finish estimated breeding values in beef production. J. Anim. Sci. 81: 89. Supplement 1.


Coppola, C.L., T. Grandin, and R.M. Enns. 2003. Effect of temperament on stress response of stray adult dogs in a shelter environment. J. Anim. Sci. 81: 69. Supplement 1.


Corro, M.D., D.L. Lalman, K. Barnes, and J.L. Evans. 2004. Selected management practices of beef cows on cow-calf operations in Oklahoma. J. Anim. Sci. (Abstr.).


Crews, D. H., Jr. 2004. Genetic evaluation of efficient feed utilization in beef cattle. Breeding and Genetics Invited Symposium, ?Genetics of Efficient Feed Utilization? Amer. Soc. Anim. Sci. Ann. Conf., St. Louis, MO. J. Anim. Sci. (Suppl. 1):(Abstr.).


Crews, D. H., Jr. and S. S. Moore. Associations of single nucleotide polymorphisms in the bovine obese (Leptin) gene with feedlot and carcass characteristics of crossbred steers. Proc. Can. Soc. Anim. Sci.


Crews, D. H., Jr., M. Lowerison, N. Caron, and R. A. Kemp. 2004. Genetic correlations of growth with carcass traits from Charolais field data. Proc. West. Sec. Amer. Soc. Anim. Sci. 55:74-77.


Crews, D. H., Jr., M. Lowerison, N. Caron, and R. A. Kemp. Genetic parameters among growth and carcass traits of Canadian Charolais cattle. Can. J. Anim. Sci. Accepted.


Crews, D. H., Jr., N. H. Shannon, B. M. A. Genswein, R. E. Crews, C. M. Johnson, and B. A. Kendrick. Residual feed intake during postweaning growing versus finishing periods and carcass composition of beef steers. Prof. Anim. Sci. Accepted.


Crews, Jr., D. H., E. J. Pollak, and R. L. Quaas. 2004. Evaluation of Simmental carcass EPD estimated using live and carcass data. J. Anim. Sci. 82:661-667.


Davis, K.C., D.C. Anderson, D.D. Kress, J.M. Rumph, and D.L. Boss. 2004. Changes in body weight, pelvic measures and semen characteristics of Hereford cattle due to selection for scrotal circumference. J. Anim. Sci. (Suppl. 1)


Davis, K.C., D.C. Anderson, D.D. Kress, J.M. Rumph, and D.L. Boss. 2004. Changes in body weight, pelvic measures and semen characteristics of Hereford cattle due to selection for scrotal circumference. Proc. West. Sect. Am. Soc. Anim. Sci. 55:70-73.


Dean, D. T., and A. D. Herring. 2004. Evaluation of ultrasound body composition traits among long yearling Brahman bulls. ASAS Southern Section Annual Meeting. February 14-18, 2004, Tulsa, OK.


Dean, D.T. and A. D. Herring. 2003. Evaluation of yearling bull sale prices at six regional locations. J. Anim. Sci. 81(Suppl. 1):111(Abstr.).


Denniston, D.J., M.G. Thomas, K.K. Kane, C.N. Roybal, L. Canales, D.M. Hallford, M.D. Remmenga, and D.E. Hawkins. 2003. Effect of Neuropeptide Y on GnRH-induced LH release from bovine anterior pituitary cell cultures derived from heifers in a follicular, luteal, or ovariectomized state. Anim. Reprod. Sci. 78:25-31.


Dorton, K.L., T.E. Engle, C.V. Kimberling, G. Parsons, D.R. Ames, and R.M. Enns. 2003. Effects of trace mineral source and growth implants on performance, immunity, and carcass characteristics of growing and finishing steers. Proc. West Sec. Am. Soc. An. Sci. vol 54. 4 pages.


Dorton, K.L., T.E. Engle, C.V. Kimberling, G. Parsons, D.R. Ames, and R.M. Enns. 2003. Effects of trace mineral source and growth implants on performance, immunity, and carcass characteristics of growing and finishing steers. J. Anim. Sci. (Suppl. 1)


Eler, J.P., J. A. II V. Silva, J. L. Evans, J. B. S. Ferraz, F. Dias, B. L. Golden. Additive genetic relationships between heifer pregnancy and scrotal circumference in Nellore Cattle. J. Anim. Sci. (Accepted)


Enns, R.M, and D.J. Garrick. 2003. The Economic benefits and potential when using current and future EPD?Economically Relevant Traits. Proceedings, The Range Beef Cow Symposium XVIII. Scottsbluff. Pp. 46-53.


Enns, R.M., S. Speidel and B. Brigham. GEARING UP FOR EPD. International Texas Longhorn Association Journal?Longhorn Drover. Pp. 10-11. Center for Genetic Evaluation of Livestock. Colorado State University


Evans, J.L. 2004. Appropriate genetic packages: where should selection pressure be placed? Midwest ASAS Meeting. Extension Symposium-management of the Two-Year-Old Cow. NCR-087 Regional Research Committee. March. Des Moines, IA.


Evans, J.L. 2004. Appropriate genetic packages: where should selection pressure be placed? J. Anim. Sci. (Abstr.).


Evans, John L. 2004. Bull Selection 101. January 2004. American Red Angus Journal.


Evans, John L. 2004. Do Your Beef Cattle Fit? March 2004. Oklahoma Cowman.


Evans, John L.. 2004. Review of Breed Association Selection Indexes. Beef Improvement Federation 36th Annual Research Symposium and Annual Meeting, May, Sioux Falls, SD


Evans, John, David Buchanan, and Sally Dolezal. 2003. OSU Beef Cattle Manual?Revised Ch 20. Beef Cattle Breeding.


Flores, R., M.L. Looper, M.G. Thomas, and D.M. Hallford. 2004. Influence of bovine somatotropin on characteristics of estrus and reproduction of Holstein cows during summer months. Prof. Anim. Sci. 20:191-197.


Garcia, M.D., M.G. Thomas, G.A. Silver, D.M. Hallford, and R.M. Enns. 2003. Relationships of the growth hormone (GH) Msp-I RFLP pituitary responsiveness to GHRH and growth traits in Angus and Brangus bulls. Plant Anim. Genome XI:P277.


Garcia, M.D., M.G. Thomas, R. Parker, and R.M. Enns. Evaluation of performance trends in the Tucumcari Bull Test, 1961 to 2000. Accepted NM-AES, spring 2004.


Harborth, K. W., A. D. Herring and J. C. Paschal. 2004. Investigation of factors influencing feedlot performance and profitability in the 2001-2002 Texas A&M Ranch to Rail program-South. ASAS Southern Section Annual Meeting. February 14-18, 2004, Tulsa, OK.


Ilse, B.R., J.M. Rumph, K.C. Davis, and S.L. Wallin. 2004 Genetic analysis of two lines of Rambouillet sheep divergently selected for lambing rate. Proc. West. Sect. Am. Soc. Anim. Sci. 55:67-69.


Ilse, B.R., J.M. Rumph, K.C. Davis, and S.L. Wallin. 2004. Genetic analysis of two lines of Rambouillet sheep divergently selected for lambing rate. J. Anim. Sci. (Suppl. 1)


Jubileu, N. Maiwashe, M. Cleveland, B. Tseveenjav, R.M. Enns, and D.J. Garrick. 2003. Estimates of genetic parameters of carcass traits in limousine cattle. J. Anim. Sci. 81: 318. Supplement 1.


Kane, K.K., D. E. Hawkins, G. D. Pulsipher, D. J. Denniston, C. R. Krehbiel, M. G. Thomas, M. K. Petersen, D. M. Hallford, M. D. Remmenga, A. J. Roberts, and D. H. Keisler. 2004. Effect of increasing levels of undegradable intake protein on metabolic and endocrine factors in estrous cycling beef heifers. J. Anim. Sci. 82: 283-291.


Lopez, R., M.G. Thomas, D.M Hallford, D.H. Keisler, B.S. Obeidat, M.D. Garcia, and C.R. Krehbiel. 2004. Growth, reproduction, and metabolic hormone characteristics of Angus, Brangus, and Brahman heifers developed in a Chihuahuan Desert Beef Production system. Submitted J. Anim. Sci. 12/2/2003. Review and request for revisions returned 4/13/2004.


MacLeay, J.M., Lehmer, E., Enns, R.M., Mallinckrodt, C., Bryant, H.U., Turner A.S.Central and peripheral Temperature Changes in Sheep Following Ovariectomy. Maturitas. Vol 6. pp 231-238.


Miller, K.E., K.R. Peel, R.M. Enns, and G. Niswender. 2003. Western Center for integrated resource management?s master?s degree program at Colorado State University. Jo. Of National Association of Colleges and Teachers in Agriculture (NACTA). September: pp. 2-5.


Miller, K.E., W. S. Mackay, J.C. Whittier, R.M. Enns, and R.K. Peel. 2003 Comparison of synchronization protocols for beef heifers using melengestrol acetate, prostaglandin, GnRH, and timed artificial insemination. Proc. West Sec. Am. Soc. An. Sci. vol 54. 3 pages.


Miller, K.E., W. S. Mackay, J.C. Whittier, R.M. Enns, and R.K. Peel. 2003 Comparison of synchronization protocols for beef heifers using melengestrol acetate, prostaglandin, GnRH, and timed artificial insemination. J. Anim. Sci. (Suppl. 1)


Morrison, C.D., J.A. Daniel, J.H. Hampton, P.R. Buff, T.M. McShane, M.G. Thomas, and D.H. Keisler. Regulation of luteinizing hormone and growth hormone in ewes treated with Neuropeptide Y. 2003. Domestic Anim. Endocrinol. 24:69-80.


Narro, L.A., M.G. Thomas, M.D. Garcia, D.H. Keisler, M. Amstalden, G.L. Williams, and D.M. Hallford. 2003. Intracerebroventricular infusion of neuropeptide Y and leptin differentially influence the episodic secretion patterns of GH in well-fed ovariectomized cows. Proc. West. Sect. Am. Soc. Anim. Sci. 54:274-276.


Narro, L.A., M.G. Thomas, M.D. Garcia, D.H. Keisler, M. Amstalden, G.L. Williams, and D.M. Hallford. 2003. Intracerebroventricular infusion of neuropeptide Y and leptin differentially influence the episodic secretion patterns of GH in well-fed ovariectomized cows. J. Anim. Sci. 81(Suppl. 1):237.


Narro, L.A., M.G. Thomas, G.A. Silver, K.J. Rozeboom, and D.H. Keisler. 2003. Body composition, leptin, and the leptin receptor and their relationship to the growth hormone (GH) axis in wethers treated with zeranol. Domest. Anim. Endocrinol. 24:243-255.


Rumph, J.M. and L.D. Van Vleck. 2004. Age-of-dam adjustment factors for birth and weaning weight records of beef cattle: A review. Genet. Mol. Res. 3:1-17.


Rumph, J.M., D.D. Kress, K.C. Davis, D.C. Anderson, and D.L. Boss. 2004. Genetic analysis of mature cow weights in a population of inbred Hereford cattle. J. Anim. Sci. (Suppl. 1)


Rumph, J.M., D.D. Kress, K.C. Davis, D.C. Anderson, and D.L. Boss. 2004. Genetic analysis of mature cow weights in a population of inbred Hereford cattle. Proc. West. Sect. Am. Soc. Anim. Sci. 55:78-81.


Rumph, J.M., K.C. Davis, and P.J. Burfening. 2004. Genetic trends for litter weight weaned per ewe lambing for two lines of Rambouillet sheep divergently selected for litter size. Accepted and to be presented at Midwest ASAS meetings, Des Moines, IA ? March 15-17, 2004


Shirley, K.L., M.G. Thomas, D.H. Keisler, D.M. Hallford, D.M. Montrose, G.A. Silver, M.D. Garcia, and L.A. Narro. Feed intake, serum leptin, and puberty in Brangus heifers sired by bulls with differing EPDs for growth and scrotal circumference. Proc. West. Sect. Am. Soc. Anim. Sci. 54:291-293.


Shirley, K.L., M.G. Thomas, D.H. Keisler, D.M. Hallford, D.M. Montrose, G.A. Silver, M.D. Garcia, and L.A. Narro. 2003. Feed intake, serum leptin, and puberty in Brangus heifers sired by bulls with differing EPDs for growth and scrotal circumference. J. Anim. Sci. 81(Suppl. 1):236-237.


Speidel, S.E. and R. M. Enns. Report to the North American Limousin Foundation: Results of Analysis for Carcass EPD. Technical Report to the North American Limousin Foundation. 7 pages.


Speidel, S.E. and R. M. Enns. Report to the North American Limousin Foundation. Carcass analysis prototype results. 5 Pgs.


Speidel, S.E. and R.M. Enns. 2004 Braford Sire Summary. Colorado State University Center for Genetic Evaluation of Livestock.


Speidel, S.E., D. J. Garrick and R. M. Enns. Report to the Red Angus Association of America: Results of Prototype Development for Mature Cow Maintenance Energy EPD and Accuracy. 14 pgs.


Speidel, S.E., R. M. Enns, D. J. Garrick, C. S. Welsh, and B. L. Golden. 2003. Current approaches to performing large scale beef cattle genetic evaluations, Proc. West Sect. Am. Soc. An. Sci. Vol 54. 7 pages.


Speidel, S.E., R. M. Enns, D. J. Garrick, C. S. Welsh, and B. L. Golden. 2003. Current approaches to performing large scale beef cattle genetic evaluations, Proc. West Sect. Am. Soc. An. Sci. Vol 54. 7 pages.


Thallman, R.M., D.W. Moser, E.W. Dressler, L.R. Totir, R.L. Fernando, S.D. Kachman, J.M. Rumph, M.E. Dikeman, and E.J. Pollak. 2004. Carcass Merit Project: DNA Marker Validation. Proceedings, Beef Improvement Federation 36th Annual Research Symposium and Annual Meeting. Sioux Falls, SD.


Thomas, M.G. 2003.Review of research on Brangus equals superior environmental compatibility, competitive growth and carcass characteristics, and very tender beef. Commercial Brangus Edition 10(1):12 and 24.


Thomas, M.G. and L.N. Burcham. 2003. Chihuahuan Desert Brangus make news. How did maintaining body condition turn into new super desert cows. Commercial Brangus Edition 10(2):9, 22, 23, 24, 26.


Thomas, M.G., R.M. Enns, G. Silver, M. Garcia, K. Shirley, V. Beauchemin, and D. Hallford. 2004. Growth hormone (GH) gene polymorphisms appear to differentially influence pituitary responsivenesss to growth hormone releasing hormone (GHRH) among Bos taurus and Bos indicus-derivative cattle. Plant and Anim. Genome XII, 229.


Thomas, M.G., R.M. Enns, G. Silver, M. Garcia, K. Shirley, V. Beauchemin, and D. Hallford. 2004. Growth hormone (GH) gene polymorphisms appear to differentially influence pituitary responsiveness to growth hormone releasing hormone (GHRH) among Bos taurus and Bos indicus-derivative cattle. Int. Plant Anim. Genome XII:229.


Tseveenjav, B., H.D. Blackburn, and R.M. Enns. 2003. Heritability estimates for semen characteristics of inbred and non-inbred Hereford bulls. J. Anim. Sci. 81:318. Supplement 1.


Valle, E., F. A. Habermann, S. S. Moore, D. H. Crews, Jr. and B. F. Benkel. Genomic localization and SNP discovery in the bovine melanocortin receptor 4 gene (MC4R). Animal Genetics. Accepted..


Valle, E., F. A. Habermann, S. S. Moore, D. H. Crews, Jr. and B. F. Benkel. Genomic localization and SNP discovery in the bovine melanocortin receptor 4 gene (MC4R). Animal Genetics. Accepted..


Valle, E., S. S. Moore, Crews, D. H., Jr., and B. F. Benkel. The bovine
cocaine and amphetamine regulated transcript (CART) locus: gene characterization and SNP discovery. Animal Genetics. Submitted.


Valle, E., S. S. Moore, Crews, D. H., Jr., and B. F. Benkel. The bovine cocaine and amphetamine regulated transcript (CART) locus: gene characterization and SNP discovery. Animal Genetics. Submitted.


Walburger, A. M. and D. H. Crews, Jr. 2004. Improving market selection for fed beef cattle: The value of real-time ultrasound (RTU) and relations? data. Can. J. Ag. Econ. Accepted.


Walker, R.S., E. R. Downing, R. M. Enns, and D. D. Zalesky . Improving fertility in beef heifers with GnRH at timed AI using a modified Co-Synch plus CIDR protocol. 2003 Beef Program Report.


Wamsley, N.E., P.D. Buns, T.E. Engle, and R.M. Enns. 2003. Effect of fish meal supplementation on endometrial sensitivity to oxytocin in beef heifers having low luteal phase progesterone. J. Anim. Sci. (Suppl. 1)


Wamsley, N.E., P.D. Buns, T.E. Engle, and R.M. Enns. 2003. Effect of fish meal supplementation on endometrial sensitivity to oxytocin in beef heifers having low luteal phase progesterone. Proc. West Sect. Am. Soc. An. Sci. Vol 54. 4 pages.


Welsh, C.S., B.L. Golden, R.M. Enns, D.J. Garrick, and G.B. Nicoll. 2003. Influence of birth weight and birth rank on lamb survivability. J. Anim. Sci. 81: 68. Supplement 1.
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