SAES-422 Multistate Research Activity Accomplishments Report
Sections
Status: Approved
Basic Information
- Project No. and Title: WERA_OLD1 : Beef Cattle Breeding in the Western Region
- Period Covered: 07/01/2001 to 06/01/2002
- Date of Report: 09/04/2002
- Annual Meeting Dates: 06/17/2002 to 06/18/2002
Participants
Tess, Mike (mwtess@montana.edu) - Montana State University MacNeil, Mike (mike@larrl.ars.usda.gov) - Miles City Thomas, Milt (milthoma@nmsu.edu) - New Mexico State University Herring, Andy (a-herring@mail.ansc.ad.tamu.edu) - Texas A&M University Gaskins, Charles (gaskins@wsu.edu) - Washington State University Enns, Mark (mark.enns@colostate.edu - Colorado State University Crews, Denny (dcrews@em.agr.ca) - Ag Canada in Lethbridge Buckely, Brent (buckley@hawaii.edu) - University of Hawaii
The Western Region Coordinating Committee for Beef Cattle Breeding Research (WCC1) convened in Fort Collins on June 18, 2002. Sixteen people attended the meeting. Those in attendance were primary investigators of various state agricultural experiment stations, scientists from research facilities of national departments of agriculture in the U.S. and Canada, and graduate students from participating Land Grant Universities. The meeting was conducted in three sections: 1) a business meeting, 2) experiment station reports, and 3) a discussion of the topic of residual feed intake.
In the business meeting, the status of the new petition and the administrative advisor were discussed. Milt Thomas and Mark Enns reported that the new petition was submitted within the required deadlines and is pending approval at the July meeting of the directors of the western state agricultural experiment stations. Mark Enns reported that Don Kress of Montana State University is in the preliminary stages of being defined as the administrative advisor and Don volunteered to serve in that capacity for Daryl Tatum of Colorado State University for this year‘s meeting. The group then discussed, voted, and approved the location, date, chairperson, and the host for the 2003 meeting. The results of these decisions are listed below.
Location of 2003 Meeting: Montana State University Experiment Station at Havre and the R1 - Agriculture and Agri-Food Canada Research Center, Lethbridge, Alberta, Canada.
Date of 2003 Meeting: latter portion of May, 2003.
Chair of 2003 Meeting: Mike Tess, Montana State University
Host of 2003 Meeting: Denny Crews, Ag-Canada in Lethbridge Alberta
The objectives of the new petition are:
1. Maintain and disseminate educational resources on the genetics of beef cattle including WCC-1 publications.
2. Conduct research to contribute to the understanding of genetic association among economically important traits and their indicators.
3. Maintain a record of resources on pedigreed populations that could be used in quantitative and/or molecular studies.
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.
These objectives were discussed and the following decisions were made to facilitate accomplishment of the objectives. For objective 1, Dr. Milt Thomas will compile a list of WCC1 publications. He will then distribute the list to all members so that the group can add other publications to the list. The publications can then be compiled by Milt Thomas and staff at New Mexico State University. The publications can be scanned into PDF format and posted on the WCC1 web page. Other discussion occurred regarding writing a new WCC1 publication. Ideas were a historic review of the activities of WCC1 and (or) an extension publication to help beef cattle producers understand and utilize technologies available for use in beef cattle breeding decisions. This discussion was tabled until the conclusion of the meeting so everyone could have more time to brain- storm. It was also suggested that the web page be further developed with many more links to other sites relevant to beef cattle breeding. For objective 2, the group discussed the importance of collaborative research among the members. Mike MacNeil of the USDA-ARS unit located in Miles City, MT commented on the great resources of that station and welcomed additional collaboration of WCC1 members. He specified the current interactions of graduate students with the facility and welcomed more of these interactions in the future. For objective 3, Mark Enns volunteered himself and Dave Schaffer of the University of Arizona to develop a web-based record system so that the group could self-update information regarding their records of resources on pedigreed populations that could be used in quantitative and/or molecular studies. For objective 4, the committee suggested this will accomplished through annual reports of research from experiment stations and will quantified/noted by each station writing accomplishment and impacts of their projects relative to the objectives.
Committee then presented reports from the experiment stations that attended. Presentations came from the primary investigators, and when possible, graduate students presented their work. The presentations were of various topics that ranged from uniqueness of genes to performance data collected within beef cattle herds with pedigree records; however, a central theme was upheld regarding the area of feed efficiency/feed intake. The reason for this theme was to facilitate discussion with guest speaker Dr. Bob Herd, Senior Research Scientist, NSW Agriculture Beef Industry Centre, University of New England, Armidale, New South Wales, Australia. Dr. Herd‘s presentation described the concept of residual feed intake and presented results of selection for this procedure. One generation of selection using this technology produced differences in Angus Cattle in their level of feed intake and gain.
The meeting was summarized before dismissal. One topic that was left for further discussion of the committee for the 2003 meeting was the task of developing a new WCC1 publication. It appears that most of the committee was in favor of developing an extension publication to educate beef cattle producers of the technologies available to assist in selection. The mechanisms to produce this publication will be discussed throughout the year by email and then further developed at the 2003 meeting.
The committee would also like to note that on the afternoon of June 17 preceding the WCC1 meeting, members of the committee and graduate students met to discuss large scale genetic evaluation of beef cattle. This discussion served to finalize a graduate course in prediction technologies that was conducted by distance education technologies between New Mexico State University, Texas Tech University, and Colorado State University. Topics that were discussed in this session were challenges of sifting large data bases for errors, identifying primary sources of variation in large data bases, and the software that has been developed for conducting genetic evaluation.
In the business meeting, the status of the new petition and the administrative advisor were discussed. Milt Thomas and Mark Enns reported that the new petition was submitted within the required deadlines and is pending approval at the July meeting of the directors of the western state agricultural experiment stations. Mark Enns reported that Don Kress of Montana State University is in the preliminary stages of being defined as the administrative advisor and Don volunteered to serve in that capacity for Daryl Tatum of Colorado State University for this year‘s meeting. The group then discussed, voted, and approved the location, date, chairperson, and the host for the 2003 meeting. The results of these decisions are listed below.
Location of 2003 Meeting: Montana State University Experiment Station at Havre and the R1 - Agriculture and Agri-Food Canada Research Center, Lethbridge, Alberta, Canada.
Date of 2003 Meeting: latter portion of May, 2003.
Chair of 2003 Meeting: Mike Tess, Montana State University
Host of 2003 Meeting: Denny Crews, Ag-Canada in Lethbridge Alberta
The objectives of the new petition are:
1. Maintain and disseminate educational resources on the genetics of beef cattle including WCC-1 publications.
2. Conduct research to contribute to the understanding of genetic association among economically important traits and their indicators.
3. Maintain a record of resources on pedigreed populations that could be used in quantitative and/or molecular studies.
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.
These objectives were discussed and the following decisions were made to facilitate accomplishment of the objectives. For objective 1, Dr. Milt Thomas will compile a list of WCC1 publications. He will then distribute the list to all members so that the group can add other publications to the list. The publications can then be compiled by Milt Thomas and staff at New Mexico State University. The publications can be scanned into PDF format and posted on the WCC1 web page. Other discussion occurred regarding writing a new WCC1 publication. Ideas were a historic review of the activities of WCC1 and (or) an extension publication to help beef cattle producers understand and utilize technologies available for use in beef cattle breeding decisions. This discussion was tabled until the conclusion of the meeting so everyone could have more time to brain- storm. It was also suggested that the web page be further developed with many more links to other sites relevant to beef cattle breeding. For objective 2, the group discussed the importance of collaborative research among the members. Mike MacNeil of the USDA-ARS unit located in Miles City, MT commented on the great resources of that station and welcomed additional collaboration of WCC1 members. He specified the current interactions of graduate students with the facility and welcomed more of these interactions in the future. For objective 3, Mark Enns volunteered himself and Dave Schaffer of the University of Arizona to develop a web-based record system so that the group could self-update information regarding their records of resources on pedigreed populations that could be used in quantitative and/or molecular studies. For objective 4, the committee suggested this will accomplished through annual reports of research from experiment stations and will quantified/noted by each station writing accomplishment and impacts of their projects relative to the objectives.
Committee then presented reports from the experiment stations that attended. Presentations came from the primary investigators, and when possible, graduate students presented their work. The presentations were of various topics that ranged from uniqueness of genes to performance data collected within beef cattle herds with pedigree records; however, a central theme was upheld regarding the area of feed efficiency/feed intake. The reason for this theme was to facilitate discussion with guest speaker Dr. Bob Herd, Senior Research Scientist, NSW Agriculture Beef Industry Centre, University of New England, Armidale, New South Wales, Australia. Dr. Herd‘s presentation described the concept of residual feed intake and presented results of selection for this procedure. One generation of selection using this technology produced differences in Angus Cattle in their level of feed intake and gain.
The meeting was summarized before dismissal. One topic that was left for further discussion of the committee for the 2003 meeting was the task of developing a new WCC1 publication. It appears that most of the committee was in favor of developing an extension publication to educate beef cattle producers of the technologies available to assist in selection. The mechanisms to produce this publication will be discussed throughout the year by email and then further developed at the 2003 meeting.
The committee would also like to note that on the afternoon of June 17 preceding the WCC1 meeting, members of the committee and graduate students met to discuss large scale genetic evaluation of beef cattle. This discussion served to finalize a graduate course in prediction technologies that was conducted by distance education technologies between New Mexico State University, Texas Tech University, and Colorado State University. Topics that were discussed in this session were challenges of sifting large data bases for errors, identifying primary sources of variation in large data bases, and the software that has been developed for conducting genetic evaluation.
Accomplishments
Objective 1. A web page has been established http://web.nmsu.edu/~milthoma/WCC-1 as a mechanism for the WCC-1 to distribute information to both scientific- and producer-based audiences. This web site contains functions, which include the petition function of the WCC-1, locations for posting of educational materials developed by WCC-1, a listing of all WCC-1 members, and a location to be developed for major links regarding Beef Cattle Breeding. Now that this web site has been established, it is being expanded to become a functional service to people interested in beef cattle breeding in the western United States.
Objective 2. Develop and establish education materials to assist producers in implementing crossbreeding systems. Members of WCC-1 have given presentations and/or written articles for producer-oriented publications on various aspects of crossbreeding and crossbreeding systems, such as optimizing the balance between maternal characteristics and carcass traits. The group started to plan a new publication regarding the tools that beef producers can use in selecting beef cattle.
Objective 3. Maintain a record of tissue stored on pedigreed populations for potential DNA extraction and analysis. The committee assigned Mark Enns to Chair a committee to develop a web-based system to enter this information. Access to this information will then be provided with contact information via the website.
Objective 4. Conduct training for seedstock producers on basic genetic concepts and methods for genetic improvement of beef cattle. This objective was achieved through the WCC-1‘s efforts at the National Cattlemen‘s Beef Association Annual Meeting in Charolotte, NC in the Producer Education Seminars. Additionally, members individually and cooperatively held numerous education seminars in the states they represent. Below is a list of those presentations:
Gaskins, C.T. 2000 Recent Advances In The Genetic Improvement Of Livestock
Animal Science 500 Seminar (10/11)
WSU Cooperative Extension Conference (10/12)
WSU Block and Bridle Club (10/12)
Klickatat County Cattlemen‘s Association (12/6/00)
Gaskins, C.T. 2000. Wagyu Cattle Production in Australia.
American Wagyu Association Annual Meeting. Reno, NV (12/9/00).
Gaskins, C.T. 2000. Wagyu Cattle Production in Australia.
Canadian Wagyu Association Annual Meeting. Camrose, AB (1/19/01).
2002 Making profitable selection decisions. Beckton-Buffalo Creek Education
seminar. Sheridan, WY.
2002 Workshop and Panel: Red Angus Braintrust. Presentation: Positioning Red Angus for the Future. Denver
2001 EPD interpretation. Producer short course, "Cow Camp". Fort Collins.
2001 Workshop: National Cattlemen‘s Beef Association Workshop for University Beef Production Instructors. Presentation: Future genetic evaluation: Economically relevant traits and the Decision Evaluator for the Beef Industry. Kansas City.
2001 Practical EPD use for commercial cattlemen. Colorado Cattlemen‘s Association
Convention, Copper Mountain
2000 Economically relevant traits- A framework for the next generation of EPDs. Beef Improvement Federation Annual Meeting. Joint opening session presentation by Golden, B.L., D.J. Garrick, S. Newman, and R.M. Enns. Wichita.
Genetic Evaluation and EPD. 1/5/00. Canadian Salers Association, Calgary, AB.
Understanding and Marketing EPD. 2/5/00. Alta Genetics, Ltd., Calgary, AB.
Research in Livestock Sciences. 5/25-27/00. British Columbia Cattlemen‘s Assoc., Cranbrook, BC.
Parameters for Genetic Evaluation with Ultrasound. 3/22/01. Amer. Simmental Assoc., Havre, MT.
Genetic Evaluation and Improvement of Economic Merit Using EPD. 11/15/01. NBSS, Lethbridge, AB.
Genetic Evaluation and Improvement of Livestock. 02/07/02. Univ. of Lethbridge guest lecture.
Ultrasound in Beef Genetic Evaluation. 3/16/02. BC Hereford Association, Kelowna, BC.
Dynamics of EPD accuracies. NMSU Bull Test and Sale Symposium, Las Cruces, NM 2001.
Adding value with Genetics. New Mexico Cattle Grower‘s Short Course. Clayton, NM 2001.
Beef cattle performance in response to grazing systems and strategies on the Chihuahuan Desert Rangeland Research Center. New Mexico Cattle Grower‘s Short Course, Las Cruces, NM 2000.
Objective 5. 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. This objective was achieved through annual meetings.
Objective 2. Develop and establish education materials to assist producers in implementing crossbreeding systems. Members of WCC-1 have given presentations and/or written articles for producer-oriented publications on various aspects of crossbreeding and crossbreeding systems, such as optimizing the balance between maternal characteristics and carcass traits. The group started to plan a new publication regarding the tools that beef producers can use in selecting beef cattle.
Objective 3. Maintain a record of tissue stored on pedigreed populations for potential DNA extraction and analysis. The committee assigned Mark Enns to Chair a committee to develop a web-based system to enter this information. Access to this information will then be provided with contact information via the website.
Objective 4. Conduct training for seedstock producers on basic genetic concepts and methods for genetic improvement of beef cattle. This objective was achieved through the WCC-1‘s efforts at the National Cattlemen‘s Beef Association Annual Meeting in Charolotte, NC in the Producer Education Seminars. Additionally, members individually and cooperatively held numerous education seminars in the states they represent. Below is a list of those presentations:
Gaskins, C.T. 2000 Recent Advances In The Genetic Improvement Of Livestock
Animal Science 500 Seminar (10/11)
WSU Cooperative Extension Conference (10/12)
WSU Block and Bridle Club (10/12)
Klickatat County Cattlemen‘s Association (12/6/00)
Gaskins, C.T. 2000. Wagyu Cattle Production in Australia.
American Wagyu Association Annual Meeting. Reno, NV (12/9/00).
Gaskins, C.T. 2000. Wagyu Cattle Production in Australia.
Canadian Wagyu Association Annual Meeting. Camrose, AB (1/19/01).
2002 Making profitable selection decisions. Beckton-Buffalo Creek Education
seminar. Sheridan, WY.
2002 Workshop and Panel: Red Angus Braintrust. Presentation: Positioning Red Angus for the Future. Denver
2001 EPD interpretation. Producer short course, "Cow Camp". Fort Collins.
2001 Workshop: National Cattlemen‘s Beef Association Workshop for University Beef Production Instructors. Presentation: Future genetic evaluation: Economically relevant traits and the Decision Evaluator for the Beef Industry. Kansas City.
2001 Practical EPD use for commercial cattlemen. Colorado Cattlemen‘s Association
Convention, Copper Mountain
2000 Economically relevant traits- A framework for the next generation of EPDs. Beef Improvement Federation Annual Meeting. Joint opening session presentation by Golden, B.L., D.J. Garrick, S. Newman, and R.M. Enns. Wichita.
Genetic Evaluation and EPD. 1/5/00. Canadian Salers Association, Calgary, AB.
Understanding and Marketing EPD. 2/5/00. Alta Genetics, Ltd., Calgary, AB.
Research in Livestock Sciences. 5/25-27/00. British Columbia Cattlemen‘s Assoc., Cranbrook, BC.
Parameters for Genetic Evaluation with Ultrasound. 3/22/01. Amer. Simmental Assoc., Havre, MT.
Genetic Evaluation and Improvement of Economic Merit Using EPD. 11/15/01. NBSS, Lethbridge, AB.
Genetic Evaluation and Improvement of Livestock. 02/07/02. Univ. of Lethbridge guest lecture.
Ultrasound in Beef Genetic Evaluation. 3/16/02. BC Hereford Association, Kelowna, BC.
Dynamics of EPD accuracies. NMSU Bull Test and Sale Symposium, Las Cruces, NM 2001.
Adding value with Genetics. New Mexico Cattle Grower‘s Short Course. Clayton, NM 2001.
Beef cattle performance in response to grazing systems and strategies on the Chihuahuan Desert Rangeland Research Center. New Mexico Cattle Grower‘s Short Course, Las Cruces, NM 2000.
Objective 5. 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. This objective was achieved through annual meetings.
Impacts
- Provided more than 1000 beef producers with information pertaining to objective selection criteria.
- Assisted National Germ Plasm Repository with protocol for sampling breeds.
- Provided germ plasm resulting from research programs for use in the industry.
- Developed and provided educational materials to assist producers in implementing crossbreeding systems.
- Carcass EPD's of beef sires are closely related to progeny phenotypes.
- Characterized the effect of the myostatin locus in Hereford, Limousin, and Piedmontese populations.
- Published scientific information at both basic and applied levels that can be used to further knowledge of genetic improvement of beef cattle.
- Served as source of expertise in advising beef cattle breed associations.
- Served as source of expertise for distance education programs for dissemination of knowledge in the area of beef cattle breeding.
Publications
Boss, D.L., D.D. Kress, D.C. Anderson, D.W. Bailey, and K.C. Davis. 2001. Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. I. Calf performance and heifer development. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:97.
Anderson, D.C., D.D. Kress, D.W. Bailey, D.L. Boss, and K.C. Davis. 2001. Evaluation Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. II. Feedlot and carcass traits. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:100.
Davis, K.C., D.D. Kress, D.C. Anderson, D.L. Boss, and D.W. Bailey. 2001. Evaluation Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. III. Cow traits of young dams. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:103.
Davis, K.C., D.D. Kress, D.C. Anderson, D.L. Boss, and D.W. Bailey. 2001. Evaluation Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. IV. Calf traits from 2-yr-old and 3 and 4-yr-old dams. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:106.
Bailey, D.W., D.D. Kress, D.C. Anderson, D.L. Boss, and K.C. Davis. 2001. Evaluation Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. V. Grazing distribution patterns. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:110.
Kirschten, D.P., D.D. Kress, M.W. Tess, and K.C. Davis. 2001. Estimating genetic parameters of a linear type scoring method in beef cattle. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:114.
Kress, D.D., D.C. Anderson, J.D. Stevens, E.T. Miller, T.S. Hirsch, J.E. Sprinkle, K.C. Davis, D.L. Boss, D.W. Bailey, R.P. Ansotegui, and M.W. Tess. 2001. Calf weight/cow weight ratio at weaning as a predictor of beef cow efficiency. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:130.
Shanks, B.C., M.W. Tess, D.D. Kress, and B.E. Cunningham. 2001. Genetic evaluation of carcass traits in Simmental-sired cattle at different slaughter end points. J. Anim. Sci. 79:595.
Bailey, D.W., D.D. Kress, D.C. Anderson, D.L. Boss, and E.T. Miller. 2001. Relationship between terrain use and performance of beef cows grazing foothill rangeland. J. Anim. Sci. 79:1883.
Kuber, P.S., J.R. Busboom, S.K. Duckett, D.J. Marks, P.S. Mir, Z. Mir, R. J. McCormick, C. T. Gaskins, J. D. Cronrath, and M.V. Dodson. 2001. Comparison of breed and diet on factors associated with tenderness in two muscles. Proc. Recip. Meat Conf. 54: (In Press).
P. Kuber, J. Busboom, E. Lonergan, S. Duckett, P. Mir4, Z. Mir, R. McCormick, M. Dodson, C. Gaskins, J. Cronrath and D. Marks. 2001. Does Troponin-T Degradation, Collagen Percentage Or Collagen Crosslinking Explain Differences In Tenderness Between Wagyu And Limousin Cattle? Western Section Proceedings Am. Soc. Anim. Sci. 52:17-20.
M.G. Thomas, R.M. Enns, D.M. Hallford, D.H. Keisler, B.S. Obeidat, C.D. Morrison, J.A. Hernandez, W.D. Bryant, R. Flores, R. Lopez, L. Narro. Relationships of metabolic hormones and serum glucose to growth and reproductive development in performance-tested Angus, Brangus, and Brahman bulls. Journal of Animal Science. Refereed. Accepted October 30, 2001.
Rasor, C. C., M. G. Thomas, R. M. Enns, H.C. Salazar, H.M. Zhang, G.L. Williams, R.L. Stanko, R. D. Randel, and J. Rios. Allelic and Genotypic Frequencies of the Leptin Gene Sau3AI Restriction Fragment Length Polymorphism and Evaluation of its Association to Age-of-Puberty in Cattle in the Southwestern United States and Northern Mexico. Journal of Professional Animal Scientists Accepted January 24, 2002.
Herring, A. D., M. G. Thomas, and R. M. Enns. 2001. Development of a multi-institutional, web-based, graduate animal breeding course. NACTA Journal. 44:11-17.
Patterson, L. N., R. T. Ervin and A. D. Herring. 2001. Live cattle value based on phenotypic characteristics as related to hide quality. J. Amer. Leather Chem. Assoc. 96:214-221.
Ervin, R. T., L. N. Patterson, and A. D. Herring. 2002. Packer vs. feeder cattle live animal hide value based on phenotypic characteristics. J. Amer. Leather Chem. Assoc. Volume 97. (Accepted July 2001)
Grosz, M. D. and M. D. MacNeil. Putative quantitative trait locus affecting birth weight on bovine chromosome 2. J. Anim. Sci. 79:68-72. 2001.
Grings, E. E., R. E. Short, M. D. MacNeil, R. A. Roeder, and M. J. Roeder. Interactions in postweaning production of F1 cattle from Hereford, Limousin, or Piedmontese sires. J. Anim. Sci. 79:317-324. 2001.
MacNeil, M. D., R. E. Short, and E. E. Grings. Characterization of topcross progenies from Hereford, Limousin, and Piedmontese sires. J. Anim. Sci. 79:1751-1756. 2001.
Rule, D. C., J. M. Rule, R. E. Short, E. E. Grings, and M. D. MacNeil. Genotype effects on cholesterol and fatty acids in longissimus and semitendinosus muscles from Hereford, Limousin, and Piedmontese F2 crossbred cattle at slaughter. Proc. West. Sec. Am. Soc. Anim. Sci. 52:266-269. 2001. (Proceedings)
MacNeil, M. D. Comparison of mass selection by independent culling levels for below average birth weight and greater yearling weight with single-trait mass selection for greater yearling weight in Line 1 Hereford cattle. Proc., Beef Improvement Federation. Pp. 125-128. 2001. (Proceedings)
MacNeil, M. D., R. R. Frahm, L. F. Flora, and M. Mirando. Integrated research to strengthen global competitiveness of American animal agriculture. FAIR 2002. 2001. (Handout)
MacNeil, M. D. and Grosz, M. D.. Genome-wide scans for QTL affecting carcass traits in Hereford x composite double backcross populations. J. Anim. Sci. (Accepted 5/8/02). 2001.
Short, R. E., M. D. MacNeil, M. D. Grosz, D. E. Gerrard, and E. E. Grings. Pleiotropic effects in Hereford, Limousin, and Piedmontese F2 crossbred calves of genes controlling muscularity including the Piedmontese myostatin allele. J. Anim. Sci. 80:1-11. 2002.
Crews, D. H., Jr. and R. A. Kemp. 2001. Genetic parameters for ultrasound and carcass measures of yield and quality among replacement and slaughter beef cattle. J. Anim. Sci. 79:3008-3020.
Crews, D. H., Jr. 2001. Alternative ultrasound predictors of beef carcass longissimus muscle area. Prof. Anim. Sci. 17:303-308.
Crews, D. H., Jr. and R. A. Kemp. 2002. Genetic evaluation of carcass yield using real time ultrasound measures on young replacement beef cattle. J. Anim. Sci. In press.
Crews, D. H., Jr. and S. Cormican. 2002. Software for calculation of the inverse numerator relationship matrix. Prof. Anim. Sci. In press.
Crews, D. H., Jr., N. H. Shannon, R. E. Crews and R. A. Kemp. 2002. Weaning, yearling and pre-slaughter ultrasound measures of fat and muscle area in bulls, heifers and steers. J. Anim. Sci. Submitted.
Mwansa, P. B., D. H. Crews, Jr., J. W. Wilton and R. A. Kemp. 2002. Multiple trait selection for maternal productivity in the Hereford breed. J. Anim. Breed. Gen. Submitted.
Crews, D. H., Jr. 2002. The relationship between beef sire carcass EPD and progeny phenotype. Can. J. Anim. Sci. In prep.
Crews, D. H., Jr. 2001. Genetic evaluation and improvement of economic merit using EPD. In: Advances in Beef Cattle Science, Vol. 1. Pp. 197-214. Agriculture and Agri-Food Canada, Lethbridge Research Centre.
C.C. Rasor, M.G. Thomas, R.M. Enns, H.C. Salazar, H. M. Zhang, G.L. Williams, R.L. Stanko, R.D. Randel, and J. Rios. 2002. Allelic and genotypic frequencies of the leptin Sau3AI restriction fragment length polymorphism and evaluation of its association to age-of-puberty in cattle in the Southwesterb United States and Northern Mexico. Submitted: The Professional Animal Scientist 18: (in press).
M.G. Thomas, R.M. Enns, D.M. Hallford, D.H. Keisler, B.S. Obeidat, C.D. Morrison, J.A. Hernandez, W.D. Bryant, R. Flores, R. Lopez, L. Narro. 2002. Differential relationships of metabolic hormones and serum glucose to growth and reproductive development of performance-tested Angus, Brangus, and Brahman bulls. J. Anim. Sci. 80:757-767.
R. Lopez, M.G. Thomas, D.M. Hallford, D.H. Keisler, B.S. Obeidat, C.D. Morrison, J.A. Hernandez, W.D. Bryant, R. Flores, M.D. Garcia. 2001. Differential relationships of metabolic hormones and serum glucose to growth and reproductive development of Angus, Brahman, and Brangus heifer. Proc. West. Sect. Am. Soc. Anim. Sci. 52:422-425.
B.S. Obeidat, M.G. Thomas, C.C. Bailey, D.M. Hallford, D.H. Keisler, M.L. Petersen, W.D. Bryant, J.A. Hernandez, M.D. Garcia, R. Lopez. 2001. Performance and metabolic characteristics of multiparous Angus and Brahman cows grazing in the Chihuahuan Desert. Proc. West. Sect. Am. Soc. Anim. Sci. 52:145-147.
Shanks, B. C., M. W. Tess, D. D. Kress, and B. E. Cunningham. 2001. Genetic evaluation of carcass traits in Simmental-sired cattle. J. Anim. Sci. 79:595-604.
Tess, M. W. 2002. Using genetic tools to meet market targets without sacrificing maternal performance. J. Anim. Sci. 80:(E. Suppl. 1)E94-E103. Available at: http://www.asas.org/vol80/jas1712.pdf.
Julien, D. J. and M. W. Tess. 2002. Effects of calving date, weaning date, and duration of fall grazing on profitability in range beef cattle enterprises. J. Anim. Sci. (accepted).
Reisenauer, V. L., M. W. Tess, D. A. Griffith, and J. A. Paterson. 2001. Evaluation of calving seasons and marketing strategies in northern Great Plains cow-calf enterprises. Proc. WSASAS 52:50-53.
Kirschten, D. P., D. D. Kress, M. W. Tess, and K. C. Davis. 2001. Estimating genetic parameters of a linear type scoring method in beef cattle. Proc. WSASAS 52:114-117.
Tess, Mike. 2001. Using DNA markers, carcass EPD, and carcass value indices in meeting market targets without sacrificing maternal production traits. Beef Symposium - Annual Meeting of the Western Section, American Society of Animal Science. 36 p.
Anderson, D.C., D.D. Kress, D.W. Bailey, D.L. Boss, and K.C. Davis. 2001. Evaluation Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. II. Feedlot and carcass traits. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:100.
Davis, K.C., D.D. Kress, D.C. Anderson, D.L. Boss, and D.W. Bailey. 2001. Evaluation Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. III. Cow traits of young dams. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:103.
Davis, K.C., D.D. Kress, D.C. Anderson, D.L. Boss, and D.W. Bailey. 2001. Evaluation Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. IV. Calf traits from 2-yr-old and 3 and 4-yr-old dams. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:106.
Bailey, D.W., D.D. Kress, D.C. Anderson, D.L. Boss, and K.C. Davis. 2001. Evaluation Evaluation of F1 crosses from Angus, Charolais, Salers, Piedmontese, Tarentaise and Hereford sires. V. Grazing distribution patterns. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:110.
Kirschten, D.P., D.D. Kress, M.W. Tess, and K.C. Davis. 2001. Estimating genetic parameters of a linear type scoring method in beef cattle. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:114.
Kress, D.D., D.C. Anderson, J.D. Stevens, E.T. Miller, T.S. Hirsch, J.E. Sprinkle, K.C. Davis, D.L. Boss, D.W. Bailey, R.P. Ansotegui, and M.W. Tess. 2001. Calf weight/cow weight ratio at weaning as a predictor of beef cow efficiency. Proc. West. Sec. Amer. Soc. Anim. Sci. 52:130.
Shanks, B.C., M.W. Tess, D.D. Kress, and B.E. Cunningham. 2001. Genetic evaluation of carcass traits in Simmental-sired cattle at different slaughter end points. J. Anim. Sci. 79:595.
Bailey, D.W., D.D. Kress, D.C. Anderson, D.L. Boss, and E.T. Miller. 2001. Relationship between terrain use and performance of beef cows grazing foothill rangeland. J. Anim. Sci. 79:1883.
Kuber, P.S., J.R. Busboom, S.K. Duckett, D.J. Marks, P.S. Mir, Z. Mir, R. J. McCormick, C. T. Gaskins, J. D. Cronrath, and M.V. Dodson. 2001. Comparison of breed and diet on factors associated with tenderness in two muscles. Proc. Recip. Meat Conf. 54: (In Press).
P. Kuber, J. Busboom, E. Lonergan, S. Duckett, P. Mir4, Z. Mir, R. McCormick, M. Dodson, C. Gaskins, J. Cronrath and D. Marks. 2001. Does Troponin-T Degradation, Collagen Percentage Or Collagen Crosslinking Explain Differences In Tenderness Between Wagyu And Limousin Cattle? Western Section Proceedings Am. Soc. Anim. Sci. 52:17-20.
M.G. Thomas, R.M. Enns, D.M. Hallford, D.H. Keisler, B.S. Obeidat, C.D. Morrison, J.A. Hernandez, W.D. Bryant, R. Flores, R. Lopez, L. Narro. Relationships of metabolic hormones and serum glucose to growth and reproductive development in performance-tested Angus, Brangus, and Brahman bulls. Journal of Animal Science. Refereed. Accepted October 30, 2001.
Rasor, C. C., M. G. Thomas, R. M. Enns, H.C. Salazar, H.M. Zhang, G.L. Williams, R.L. Stanko, R. D. Randel, and J. Rios. Allelic and Genotypic Frequencies of the Leptin Gene Sau3AI Restriction Fragment Length Polymorphism and Evaluation of its Association to Age-of-Puberty in Cattle in the Southwestern United States and Northern Mexico. Journal of Professional Animal Scientists Accepted January 24, 2002.
Herring, A. D., M. G. Thomas, and R. M. Enns. 2001. Development of a multi-institutional, web-based, graduate animal breeding course. NACTA Journal. 44:11-17.
Patterson, L. N., R. T. Ervin and A. D. Herring. 2001. Live cattle value based on phenotypic characteristics as related to hide quality. J. Amer. Leather Chem. Assoc. 96:214-221.
Ervin, R. T., L. N. Patterson, and A. D. Herring. 2002. Packer vs. feeder cattle live animal hide value based on phenotypic characteristics. J. Amer. Leather Chem. Assoc. Volume 97. (Accepted July 2001)
Grosz, M. D. and M. D. MacNeil. Putative quantitative trait locus affecting birth weight on bovine chromosome 2. J. Anim. Sci. 79:68-72. 2001.
Grings, E. E., R. E. Short, M. D. MacNeil, R. A. Roeder, and M. J. Roeder. Interactions in postweaning production of F1 cattle from Hereford, Limousin, or Piedmontese sires. J. Anim. Sci. 79:317-324. 2001.
MacNeil, M. D., R. E. Short, and E. E. Grings. Characterization of topcross progenies from Hereford, Limousin, and Piedmontese sires. J. Anim. Sci. 79:1751-1756. 2001.
Rule, D. C., J. M. Rule, R. E. Short, E. E. Grings, and M. D. MacNeil. Genotype effects on cholesterol and fatty acids in longissimus and semitendinosus muscles from Hereford, Limousin, and Piedmontese F2 crossbred cattle at slaughter. Proc. West. Sec. Am. Soc. Anim. Sci. 52:266-269. 2001. (Proceedings)
MacNeil, M. D. Comparison of mass selection by independent culling levels for below average birth weight and greater yearling weight with single-trait mass selection for greater yearling weight in Line 1 Hereford cattle. Proc., Beef Improvement Federation. Pp. 125-128. 2001. (Proceedings)
MacNeil, M. D., R. R. Frahm, L. F. Flora, and M. Mirando. Integrated research to strengthen global competitiveness of American animal agriculture. FAIR 2002. 2001. (Handout)
MacNeil, M. D. and Grosz, M. D.. Genome-wide scans for QTL affecting carcass traits in Hereford x composite double backcross populations. J. Anim. Sci. (Accepted 5/8/02). 2001.
Short, R. E., M. D. MacNeil, M. D. Grosz, D. E. Gerrard, and E. E. Grings. Pleiotropic effects in Hereford, Limousin, and Piedmontese F2 crossbred calves of genes controlling muscularity including the Piedmontese myostatin allele. J. Anim. Sci. 80:1-11. 2002.
Crews, D. H., Jr. and R. A. Kemp. 2001. Genetic parameters for ultrasound and carcass measures of yield and quality among replacement and slaughter beef cattle. J. Anim. Sci. 79:3008-3020.
Crews, D. H., Jr. 2001. Alternative ultrasound predictors of beef carcass longissimus muscle area. Prof. Anim. Sci. 17:303-308.
Crews, D. H., Jr. and R. A. Kemp. 2002. Genetic evaluation of carcass yield using real time ultrasound measures on young replacement beef cattle. J. Anim. Sci. In press.
Crews, D. H., Jr. and S. Cormican. 2002. Software for calculation of the inverse numerator relationship matrix. Prof. Anim. Sci. In press.
Crews, D. H., Jr., N. H. Shannon, R. E. Crews and R. A. Kemp. 2002. Weaning, yearling and pre-slaughter ultrasound measures of fat and muscle area in bulls, heifers and steers. J. Anim. Sci. Submitted.
Mwansa, P. B., D. H. Crews, Jr., J. W. Wilton and R. A. Kemp. 2002. Multiple trait selection for maternal productivity in the Hereford breed. J. Anim. Breed. Gen. Submitted.
Crews, D. H., Jr. 2002. The relationship between beef sire carcass EPD and progeny phenotype. Can. J. Anim. Sci. In prep.
Crews, D. H., Jr. 2001. Genetic evaluation and improvement of economic merit using EPD. In: Advances in Beef Cattle Science, Vol. 1. Pp. 197-214. Agriculture and Agri-Food Canada, Lethbridge Research Centre.
C.C. Rasor, M.G. Thomas, R.M. Enns, H.C. Salazar, H. M. Zhang, G.L. Williams, R.L. Stanko, R.D. Randel, and J. Rios. 2002. Allelic and genotypic frequencies of the leptin Sau3AI restriction fragment length polymorphism and evaluation of its association to age-of-puberty in cattle in the Southwesterb United States and Northern Mexico. Submitted: The Professional Animal Scientist 18: (in press).
M.G. Thomas, R.M. Enns, D.M. Hallford, D.H. Keisler, B.S. Obeidat, C.D. Morrison, J.A. Hernandez, W.D. Bryant, R. Flores, R. Lopez, L. Narro. 2002. Differential relationships of metabolic hormones and serum glucose to growth and reproductive development of performance-tested Angus, Brangus, and Brahman bulls. J. Anim. Sci. 80:757-767.
R. Lopez, M.G. Thomas, D.M. Hallford, D.H. Keisler, B.S. Obeidat, C.D. Morrison, J.A. Hernandez, W.D. Bryant, R. Flores, M.D. Garcia. 2001. Differential relationships of metabolic hormones and serum glucose to growth and reproductive development of Angus, Brahman, and Brangus heifer. Proc. West. Sect. Am. Soc. Anim. Sci. 52:422-425.
B.S. Obeidat, M.G. Thomas, C.C. Bailey, D.M. Hallford, D.H. Keisler, M.L. Petersen, W.D. Bryant, J.A. Hernandez, M.D. Garcia, R. Lopez. 2001. Performance and metabolic characteristics of multiparous Angus and Brahman cows grazing in the Chihuahuan Desert. Proc. West. Sect. Am. Soc. Anim. Sci. 52:145-147.
Shanks, B. C., M. W. Tess, D. D. Kress, and B. E. Cunningham. 2001. Genetic evaluation of carcass traits in Simmental-sired cattle. J. Anim. Sci. 79:595-604.
Tess, M. W. 2002. Using genetic tools to meet market targets without sacrificing maternal performance. J. Anim. Sci. 80:(E. Suppl. 1)E94-E103. Available at: http://www.asas.org/vol80/jas1712.pdf.
Julien, D. J. and M. W. Tess. 2002. Effects of calving date, weaning date, and duration of fall grazing on profitability in range beef cattle enterprises. J. Anim. Sci. (accepted).
Reisenauer, V. L., M. W. Tess, D. A. Griffith, and J. A. Paterson. 2001. Evaluation of calving seasons and marketing strategies in northern Great Plains cow-calf enterprises. Proc. WSASAS 52:50-53.
Kirschten, D. P., D. D. Kress, M. W. Tess, and K. C. Davis. 2001. Estimating genetic parameters of a linear type scoring method in beef cattle. Proc. WSASAS 52:114-117.
Tess, Mike. 2001. Using DNA markers, carcass EPD, and carcass value indices in meeting market targets without sacrificing maternal production traits. Beef Symposium - Annual Meeting of the Western Section, American Society of Animal Science. 36 p.