SAES-422 Multistate Research Activity Accomplishments Report
Sections
Status: Approved
Basic Information
- Project No. and Title: NCR190 : Increased Efficiency of Sheep Production
- Period Covered: 10/01/1999 to 09/01/2003
- Date of Report: 07/23/2004
- Annual Meeting Dates: 06/27/2004 to 06/29/2004
Participants
Benson, Margaret (benson@msu.edu)-Michigan State University ; Berg, Paul (pberg@ndsuext.nodak.edu)-North Dakota State University; Berger, Yves (ymberger@wisc.edu)-University of Wisconsin; Bunch, Thomas (tombunch@cc.usu.edu)-Utah State University; Burke, Joan (jmburke@spa.ars.usda.gov)-USDA-ARS Booneville; Collins, Joni (jcollins@vsu.edu)-Virginia State University; Daniel, Jay (Jay_Daniel@sdstate.edu)-South Dakota State University; Ely, Don (dely@uky.edu)-University of Kentucky; Faller, Tim (timothy.faller@ndsu.nodak.edu)-North Dakota State University; Godfrey, Bob (rgofre@uvi.edu)-University of the Virgin Islands; Hiemke, Cody (cjhiemke@wisc.edu)-University of Wisconsin; Isler, Brad (isler@email.marc.usda.gov)-USDA-ARS MARC; Knights, Marlon (mknight@mail.wvu.edu)-West Virginia University; Lane, Woody (woody@woodylane.com)-Lane Livestock Services; Lewis, Gregory (glewis@pw.ars.usda.gov)-USDA-ARS Dubois; Leymaster, Kreg (leymaster@email.marc.usda.gov)-USDA-ARS MARC; Meyer, Howard (howard.h.meyer@oregonstate.edu)-Oregon State University; Miller, Larry (lmiller@csrees.usda.gov)-USDA-CSREES; Morrical, Dan (morrical@iastate.edu)-Iowa State University; Neary, Mike (mneary@purdue.edu)-Purdue University; Notter, Dave (drnotter@vt.edu)-Virginia Tech; Pope, Art (alpope@facstaff.wisc.edu)-University of Wisconsin; Rodgers, Paul (prodgers2@earthlink.net)-ASI; Schaefer, Dan (schaeferd@ansci.wisc.edu)-University of Wisconsin; Thomas, Dave (dlthomas@wisc.edu)-University of Wisconsin; Thonney, Mike (ml2@cornell.edu)-Cornell University; Waldron, Dan (d-waldron@tamu.edu)-Texas Ag. Exp. Station; Wheaton, Jon (wheat001@umn.edu)-University of Minnesota; Wildeus, Stephan (swildeus.vsu.edu)-Virginia State University; Wilson, Jay (jaywilson@nsiic.org)-USDA-NSIIC
NCR 190 Annual Meeting Minutes
June 29, 2004
Duluth, Minnesota
Chairman Don Ely called the meeting to order. Every participating institution was represented with the exception of Ohio State, which was the best attendance in several years. The first order of business was to approve the 2003 Minutes as presented in the Annual Report. Dan Morrical moved and Kreg Leymaster seconded the motion to approve the minutes as presented. The motion was approved.
Old business began with a discussion of publication of information produced from the committee in the popular press.
New business began with an administrative report from Dan Schaefer. Dan reported the new project was approved. Appreciation was expressed to Kreg Leymaster, Don Ely, and Dan Morrical for taking the lead on writing the new project. Dan Schaefer emphasized the need to highlight committee technology transfer efforts, collaborative efforts, committee accomplishments, and impact of the committee in future reports. Much discussion followed on technology transfer and collaborative efforts of the committee. Howard Meyer suggested the secretary be sent by email a list of collaborative efforts of the committee from the current 5-year project for the annual report. It was also suggested the proceedings of future meetings of the committee include a section on collaborative efforts. Dan Schaefer then reported on the committee?s web site. All participants need to access the website and verify name and contact information. The website also has a listserve to facilitate emailing committee members. Questions arose about linking to and from the website as well as posting joint committee papers on the website. The possibility of advertising the website was also suggested. Dan then praised the committee for the number of members in attendance and the number of new members. He also emphasized the importance of attendance. Dan then added as an individual that he thought product is an important component of sheep production for the committee to be sure to include.
The annual report was then further discussed. Dan Morrical and Jay Daniel were assigned to write the report.
Larry Miller gave an update from CSREES. A written report was included in the meeting proceedings. He introduced Paul Lewis, a sheep producer and member of the Sheep Center Board of Directors. Larry announced the Sheep Center call for proposals, which has previously funded some research conducted by NCR-190 members, due in October and the National Animal Germplasm Program, which involves some NCR-190 members, conference in November to be held in Cheyenne, Wyoming. Larry also informed the committee that next year NCR committees will be required to submit accomplishments of the committee in addition to minutes. He also commented on the extensive participation in the meetings.
Paul Rodgers gave an update from the American Sheep Industry Association. First, Paul thanked the committee for the opportunity to attend and expressed appreciation for active support of industry and outreach by the committee. He expressed ASI?s willingness to aid with the outreach efforts of the committee. He then addressed several areas of ASI activity including: BSE impact on sheep industry and the ASI response to the recent case of BSE in a Canadian cow in the US, market access to Mexico, mandatory price reporting re-authorization, Sheep Center funding, scrapie eradication program funding, minor use/minor species legislation, price insurance for sheep, animal identification, and the upcoming referendum on the sheep checkoff. Paul also announced that last month imports of lamb exceeded domestic production for the first time, the ewe lamb retention program will be extended with the sign-up beginning next month, and domestic wool prices are within 10% of Australian wool prices for all classes. He extended an invitation for the committee members to attend the ASI annual convention next year in Reno, Nevada. He then addressed questions regarding sheep rendering, COOL, and the up-coming checkoff referendum.
The committee then broke for lunch. At 12:45 pm, the meeting was reconvened.
Margaret Benson gave an update on the progress of the committee to produce of the National Research Council Nutrient Requirements for Small Ruminants. It will cover sheep, goats, and other small ruminants. The NRC is expected to be completed in approximately 2 years. Discussion followed on the members of the NRC committee, the information to be included in the NRC, and the form of the publication to be produced. Dan Waldron presented a resolution regarding the NRC. The resolution was discussed and changes were suggested. It was decided the resolution committee would present a revised resolution later in the meeting.
The nominating committee chaired by Howard Meyer nominated Dan Morrical for Chairman, Jay Daniel for Vice Chair, and Stephan Wildus for Secretary. Mike Neary moved and Margaret Benson seconded the motion to close nominations and cast a unanimous ballot. The motion was approved. Howard Meyer then passed the floor to Stephan Wildus, who offered to host the 2005 meetings at Virginia State University in conjunction with a Hair Sheep Symposium in late June. Kreg Leymaster moved and Dan Morrical seconded a motion to accept the invitation for Virginia State University to host the 2005 meetings. The motion passed. Discussion then proceeded on the possibility of co-sponsoring a Hair Sheep Symposium with Virginia State University. Mike Neary moved and Dan Morrical seconded a motion to appoint a committee to explore the possibility of NCR-190 co-sponsoring a symposium and to report to the executive committee. The motion passed. Stephen Wildus, Dave Notter, and Bob Godfrey were appointed the committee.
The resolution committee chaired by Dan Waldron presented the resolutions for adoption. The resolutions were discussed and revised to the following resolutions:
Resolution 1: Be it resolved, the current members of NCR-190 express warm welcome to those institutions (University of the Virgin Islands, USDA-Booneville, Pennsylvania State University, and University of California-Davis) which will become a part of the new project starting in 2004.
Resolution 2: Be it resolved, the members of NCR-190 express gratitude to Dave Thomas, Yves Berger, and the rest of the University of Wisconsin staff for their hospitality and a well organized meeting.
Resolution 3: Be it resolved, the members of NCR-190 wish to express condolences to the families, friends, and colleagues of Bob Jordan, Bill Boylan, and Upson Garrigus. Their inputs into our programs have been important and will have a lasting impact.
Resolution 4: Be it resolved, the NCR-190 committee wishes to thank the National Research Council of the National Academies for going forward with the production of Nutritional Requirements of Small Ruminants. We especially express appreciation for the contributions from National Sheep Industry Improvement Center, American Sheep Industry Association, USDA-CSREES, Montana State University, Texas A&M University, and New Mexico State University.
Be it further resolved that while we recognize the efficiency of combining the requirements into a single publication. We believe that the document should be structured so that information on sheep is in a clearly defined section. The information should be based on published science, and be easily accessible and user friendly.
Mike Neary moved and Howard Meyers seconded a motion that the resolutions be accepted. The motion passed, and the secretary was instructed to ensure the resolutions were forwarded to the appropriate parties.
Dave Notter moved to adjourn and Dan Morrical seconded. The motion passed.
June 29, 2004
Duluth, Minnesota
Chairman Don Ely called the meeting to order. Every participating institution was represented with the exception of Ohio State, which was the best attendance in several years. The first order of business was to approve the 2003 Minutes as presented in the Annual Report. Dan Morrical moved and Kreg Leymaster seconded the motion to approve the minutes as presented. The motion was approved.
Old business began with a discussion of publication of information produced from the committee in the popular press.
New business began with an administrative report from Dan Schaefer. Dan reported the new project was approved. Appreciation was expressed to Kreg Leymaster, Don Ely, and Dan Morrical for taking the lead on writing the new project. Dan Schaefer emphasized the need to highlight committee technology transfer efforts, collaborative efforts, committee accomplishments, and impact of the committee in future reports. Much discussion followed on technology transfer and collaborative efforts of the committee. Howard Meyer suggested the secretary be sent by email a list of collaborative efforts of the committee from the current 5-year project for the annual report. It was also suggested the proceedings of future meetings of the committee include a section on collaborative efforts. Dan Schaefer then reported on the committee?s web site. All participants need to access the website and verify name and contact information. The website also has a listserve to facilitate emailing committee members. Questions arose about linking to and from the website as well as posting joint committee papers on the website. The possibility of advertising the website was also suggested. Dan then praised the committee for the number of members in attendance and the number of new members. He also emphasized the importance of attendance. Dan then added as an individual that he thought product is an important component of sheep production for the committee to be sure to include.
The annual report was then further discussed. Dan Morrical and Jay Daniel were assigned to write the report.
Larry Miller gave an update from CSREES. A written report was included in the meeting proceedings. He introduced Paul Lewis, a sheep producer and member of the Sheep Center Board of Directors. Larry announced the Sheep Center call for proposals, which has previously funded some research conducted by NCR-190 members, due in October and the National Animal Germplasm Program, which involves some NCR-190 members, conference in November to be held in Cheyenne, Wyoming. Larry also informed the committee that next year NCR committees will be required to submit accomplishments of the committee in addition to minutes. He also commented on the extensive participation in the meetings.
Paul Rodgers gave an update from the American Sheep Industry Association. First, Paul thanked the committee for the opportunity to attend and expressed appreciation for active support of industry and outreach by the committee. He expressed ASI?s willingness to aid with the outreach efforts of the committee. He then addressed several areas of ASI activity including: BSE impact on sheep industry and the ASI response to the recent case of BSE in a Canadian cow in the US, market access to Mexico, mandatory price reporting re-authorization, Sheep Center funding, scrapie eradication program funding, minor use/minor species legislation, price insurance for sheep, animal identification, and the upcoming referendum on the sheep checkoff. Paul also announced that last month imports of lamb exceeded domestic production for the first time, the ewe lamb retention program will be extended with the sign-up beginning next month, and domestic wool prices are within 10% of Australian wool prices for all classes. He extended an invitation for the committee members to attend the ASI annual convention next year in Reno, Nevada. He then addressed questions regarding sheep rendering, COOL, and the up-coming checkoff referendum.
The committee then broke for lunch. At 12:45 pm, the meeting was reconvened.
Margaret Benson gave an update on the progress of the committee to produce of the National Research Council Nutrient Requirements for Small Ruminants. It will cover sheep, goats, and other small ruminants. The NRC is expected to be completed in approximately 2 years. Discussion followed on the members of the NRC committee, the information to be included in the NRC, and the form of the publication to be produced. Dan Waldron presented a resolution regarding the NRC. The resolution was discussed and changes were suggested. It was decided the resolution committee would present a revised resolution later in the meeting.
The nominating committee chaired by Howard Meyer nominated Dan Morrical for Chairman, Jay Daniel for Vice Chair, and Stephan Wildus for Secretary. Mike Neary moved and Margaret Benson seconded the motion to close nominations and cast a unanimous ballot. The motion was approved. Howard Meyer then passed the floor to Stephan Wildus, who offered to host the 2005 meetings at Virginia State University in conjunction with a Hair Sheep Symposium in late June. Kreg Leymaster moved and Dan Morrical seconded a motion to accept the invitation for Virginia State University to host the 2005 meetings. The motion passed. Discussion then proceeded on the possibility of co-sponsoring a Hair Sheep Symposium with Virginia State University. Mike Neary moved and Dan Morrical seconded a motion to appoint a committee to explore the possibility of NCR-190 co-sponsoring a symposium and to report to the executive committee. The motion passed. Stephen Wildus, Dave Notter, and Bob Godfrey were appointed the committee.
The resolution committee chaired by Dan Waldron presented the resolutions for adoption. The resolutions were discussed and revised to the following resolutions:
Resolution 1: Be it resolved, the current members of NCR-190 express warm welcome to those institutions (University of the Virgin Islands, USDA-Booneville, Pennsylvania State University, and University of California-Davis) which will become a part of the new project starting in 2004.
Resolution 2: Be it resolved, the members of NCR-190 express gratitude to Dave Thomas, Yves Berger, and the rest of the University of Wisconsin staff for their hospitality and a well organized meeting.
Resolution 3: Be it resolved, the members of NCR-190 wish to express condolences to the families, friends, and colleagues of Bob Jordan, Bill Boylan, and Upson Garrigus. Their inputs into our programs have been important and will have a lasting impact.
Resolution 4: Be it resolved, the NCR-190 committee wishes to thank the National Research Council of the National Academies for going forward with the production of Nutritional Requirements of Small Ruminants. We especially express appreciation for the contributions from National Sheep Industry Improvement Center, American Sheep Industry Association, USDA-CSREES, Montana State University, Texas A&M University, and New Mexico State University.
Be it further resolved that while we recognize the efficiency of combining the requirements into a single publication. We believe that the document should be structured so that information on sheep is in a clearly defined section. The information should be based on published science, and be easily accessible and user friendly.
Mike Neary moved and Howard Meyers seconded a motion that the resolutions be accepted. The motion passed, and the secretary was instructed to ensure the resolutions were forwarded to the appropriate parties.
Dave Notter moved to adjourn and Dan Morrical seconded. The motion passed.
Accomplishments
Published collaborative article, Length of docked tail and incidence of rectal prolapse, in Journal of Animal Science 81:2725-2732.
National Sheep Improvement Program Technical Committee Meeting was held in conjunction with NCR 190 meeting. Members of the NSIP Technical Committee are members of NCR 190.
Committee members authored papers on out of season breeding and crossbreeding for popular press magazines. These articles were reviewed and edited by other committee members.
Facilitated collaborations between Iowa State University and USDA Meat Animal Research Center, Iowa State University and University of Wisconsin, Virginia Tech and Utah State University, Virginia Tech and West Virginia University, Virginia Tech and Virginia State University, Virginia Tech and Texas A & M University, Virginia Tech and Cornell University, Oregon State University and University of Wisconsin, Oregon State University and USDA Sheep Experiment Station, Oregon State University and West Virginia University, Virginia State University and University of Virgin Islands, and North Dakota State University and South Dakota State University. Collaborations included collaborative projects, aid in research protocol design, exchange of seedstock, and exchange of technical information/instruction in techniques.
National Sheep Improvement Program Technical Committee Meeting was held in conjunction with NCR 190 meeting. Members of the NSIP Technical Committee are members of NCR 190.
Committee members authored papers on out of season breeding and crossbreeding for popular press magazines. These articles were reviewed and edited by other committee members.
Facilitated collaborations between Iowa State University and USDA Meat Animal Research Center, Iowa State University and University of Wisconsin, Virginia Tech and Utah State University, Virginia Tech and West Virginia University, Virginia Tech and Virginia State University, Virginia Tech and Texas A & M University, Virginia Tech and Cornell University, Oregon State University and University of Wisconsin, Oregon State University and USDA Sheep Experiment Station, Oregon State University and West Virginia University, Virginia State University and University of Virgin Islands, and North Dakota State University and South Dakota State University. Collaborations included collaborative projects, aid in research protocol design, exchange of seedstock, and exchange of technical information/instruction in techniques.
Impacts
- Provided a resource for information on out of season lambing
- Provided a resource for information on crossbreeding programs
- Established scientific data for appropriate docking length
- Increased milk production of ewes leading to growth and expansion of Sheep Dairy Industry
- Communication with American Sheep Industry Association and National Sheep Improvement Program helps to focus research on producer needs
Publications
Publication Listing by Station
Oregon State University
Thomas, D.L., D.F. Waldron, G.D. Lowe, D.G. Morrical, H.H. Meyer and R.A. High. 2003. Length of docked tail and the incidence of rectal prolapse in lambs. J. Anim. Sci. 81:2725-2732.
Texas A&M University
Refereed Journal Articles:
Laughlin, A.M., D.F. Waldron, B.F. Craddock, G.R. Engdahl, R.K Dusek, J.E. Huston, C.J. Lupton, D.N. Ueckert, T.L. Shay, and N.E. Cockett. 2003. Use of DNA markers to determine paternity in a multiple-sire mating flock. Sheep & Goat Res. J. 18:14-17.
Rhee, K.S., C.E. Myers, and D.F. Waldron. 2003. Consumer sensory evaluation of plain and seasoned goat meat and beef products. Meat Sci. 65:785-789.
de la Concha-Bermejillo, A., J. Guo, Z. Zhang, and D.F. Waldron. 2003. Severe Orf in young goats. J. Vet. Diag. Inv. 15:423-431.
Schulze, K.S., D.F. Waldron, T.D. Willingham, D.R. Shelby, G.R. Engdahl, E. Gootwine, S. Yoshefi, G. W. Montgomery, M.L. Tate, and E.A. Lord. 2003. Effects of the FecB allele in half-sib families of Rambouillet-cross ewes. Sheep & Goat Res. J. 18:83-88.
Thomas, D.L., D.F. Waldron, G.D. Lowe, D.G. Morrical, H.H. Meyer, R.A. High, Y.M. Berger, D.D. Clevenger, G.E. Fogle, R.G. Gottfredson, S.C. Loerch, K.E. McClure T.D. Willingham, D.L. Zartman, and R.D. Zelinsky. 2003. Length of docked tail and incidence of rectal prolapse in lambs. J. Anim. Sci. 81:2725-2732.
Lupton, C.J., D.F. Waldron, and F.A. Pfeiffer. 2003. Interrelationships of traits measured on fine-wool rams during central performance test. Sheep & Goat Res. J. 18:1-7.
King, D.A., K.L. Voges, D.S. Hale, D.F. Waldron, C.A. Taylor, and J.W. Savell. 2004. Use of high and low voltage electrical stimulation strategies enhance muscle tenderness and color from cabrito carcasses. Meat Sci. (Submitted)
Texas Agricultural Experiment Station Publications:
Waldron, D.F. and C.J. Lupton. 2004. Improvement of sheep through selection of performance-tested and progeny-tested breeding animals. Texas Agric. Exp. Sta. Res. Cen. Rep. 2004-1.
Waldron, D.F. 2004. Sire summary of ram test performance (1995 ? 2004). Texas Agric. Exp. Sta. Res. Cen. Rep. 2004-2.
Theses:
Hart, A.M. 2003. Using real-time ultrasound to measure lamb carcasses and determine yield. M.S. Thesis. Angelo State University.
USDA Meat Animal Research Center
Journal Articles:
Casas, E., B. A. Freking, and K. A. Leymaster. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: II. Reproduction of F1 ewes in fall breeding seasons. J. Anim. Sci. 82:1280-1289.
Freetly, H. C., and K. A. Leymaster. 2004. Relationship between litter birth weight and litter size in six breeds of sheep. J. Anim. Sci. 82:612-618.
Freking, B. A., and K. A. Leymaster. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale Breeds of Sheep: IV. Survival, Growth, and Carcass Traits of F1 Lambs. J. Anim. Sci. (Submitted 4/26/04)
Freking, B. A., T. P. L. Smith, and K. A. Leymaster. 2004. The callipyge mutation for sheep muscular hypertrophy ? Genetics, Physiology, and Meat Quality. Chapter 15. In Muscle Development of Livestock Animals: Physiology, Genetics, and Meat Quality (ed. M. tePas, H. Haagsman, and M. Everts), CAB International. Pp. 317-342.
Heaton, M. P., K. A. Leymaster, B. A. Freking, D. A. Hawk, J. W. Keele, W. M. Snelling, J. M. Fox, C. G. Chitko-McKown, and W. W. Laegreid. 2003. Prion gene sequence variation within diverse groups of U.S. sheep, beef cattle, and deer. Mamm. Genome. 14(11):765-777.
Lupton, C. J., B. A. Freking, and K. A. Leymaster, K.A. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: III. Wool characteristics of F1 ewes. J. Anim. Sci. (Accepted 4/28/04)
Murphy, S. K., B. A. Freking, T. P. L. Smith, C. M. Nolan, A. A. Wylie, H. K. Evans, and R. L. Jirtle. 2004. Abnormal postnatal maintenance of elevated prenatal DLK1 levels in callipyge sheep. Genome Res. (Peer reviewed)
Southey, B. R., S. L. Rodriguez-Zas, and K. A. Leymaster. 2004. Competing risks analysis of lamb mortality in a terminal sire composite population. J. Anim. Sci. (Accepted 6/12/04)
Abstracts and Proceedings:
Casas, E., B. A. Freking, K. A. Leymaster. 2003. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: Productivity of F1 ewes in fall breeding seasons. J. Anim. Sci. J. Anim. Sci. 81(Suppl. 1):67. Abst. No. 266.
Freking, B. A., T. P. L. Smith, and K. A. Leymaster. 2004. Meat quality and the callipyge gene, consumer acceptance and final product. Proc. 7th World Sheep & Wool Congress. Quebec City, Canada. (Accepted)
Heaton, M. P., K. A. Leymaster, B. A. Freking, D. A. Hawk, J. W. Keele, and W. W. Laegreid. 2004. Prion gene sequence variation within diverse groups of U.S. sheep, beef cattle, and deer. Proc. Plant & Animal Genome XII. San Diego, CA, January 10-14, 2004. Abst. No. P311.
Heaton, M. P., K. A. Leymaster, B. A. Freking, and W. W. Laegreid. 2004. Accurate determination of PRNP haplotypes in U.S. sheep. Proc. Plant & Animal Genome XII. San Diego, CA. Abst. No. P312.
Leymaster, K. A., E. Casas, and B. A. Freking. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: Reproduction of F1 ewes in spring mating seasons. J. Anim. Sci. (Accepted)
Shackelford, S. D., K. A. Leymaster, T. L. Wheeler, and M. Koohmaraie. 2003. Effects of breed of sire on carcass composition and sensory traits of lamb. Page 12 in Proc. 56th Ann. Reciprocal Meat Conf., Columbia, MO.
Southey, B. R., S. L. Rodriguez-Zas, and K. A. Leymaster. 2003. Competing risks analysis of lamb mortality. J. Anim. Sci. 81(Suppl. 1):68. Abst. No. 268.
Popular Press:
Leymaster, K. A. 2003. Fundamental aspects of crossbreeding of sheep: Use of breed diversity to improve efficiency of meat production. Sheep Connection 5(1):27-30 (Part I) and 5(2):32-39 (Part II); The Shepherd 48(10):14-23.
Shackelford, S. D., K. A. Leymaster, T. L. Wheeler, and M. Koohmaraie. 2003. Lamb meat quality progress report number 1. Preliminary results of an evaluation of effects of breed of sire on carcass composition and sensory traits of lamb. The Shepherd. 48(7):10-13.
USDA Sheep Experiment Station
Herrmann, L. M., I. Hötzel, W. P. Cheevers, K. Pretty On Top, G. S. Lewis, and D. P. Knowles. 2004. Seven new ovine progressive pneumonia virus (OPPV) field isolates from Dubois Idaho sheep comprise part of OPPV clade II based on surface envelope glycoprotein (SU) sequences. Virus Res. 102:215-220.
Lewis, G. S. 2004. Steroidal regulation of uterine immune defenses. Anim. Reprod. Sci. (Accepted on May 23, 2004).
Wulster-Radcliffe, M. C., S. Wang, and G. S. Lewis. 2004. Transcervical artificial insemination in sheep: Effects of a new transcervical artificial insemination instrument and traversing the cervix on pregnancy and lambing rates. Theriogenology (Accepted on February 2, 2004).
Herrmann L. M., W. P. Cheevers, K. L. Marshall, T. C. McGuire, M. M. Hutton, G. S. Lewis, and D. P. Knowles. 2003. Detection of serum antibodies to ovine progressive pneumonia virus in sheep by using a caprine arthritis-encephalitis virus competitive-inhibition enzyme-linked immunosorbent assay. Clin. Diagn. Lab. Immunol. 10:862-865.
Lewis, G. S. 2003. Steroidal regulation of uterine resistance to bacterial infection in livestock. Reprod. Biol. Endocrinol. 1:117. http://www.rbej.com/content/1/1/117
Lewis, G. S. 2003. Role of ovarian progesterone and potential role of prostaglandin F2? and prostaglandin E2 in modulating the uterine response to infectious bacteria in postpartum ewes. J. Anim. Sci. 81:285-293.
Seals, R. C., M. C. Wulster-Radcliffe, and G. S. Lewis. 2003. Uterine response to infectious bacteria in estrous cyclic ewes. Am. J. Reprod. Immunol. 49:269-278.
Seals, R. C., M. C. Wulster-Radcliffe, and G. S. Lewis. 2002. Modulation of the uterine response to infectious bacteria in postpartum ewes. Am. J. Reprod. Immunol. 47:57-63.
Snowder, G. D., Stellflug, J. N., and Van Vleck.L. D. 2004.Genetic correlation of ram libido score with ewe reproductive traits of four sheep breeds. Applied Animal Behavior Science. (In Press).
Utah State University
Bunch, T.D., S. Wang, C. Wu and Y. Zhang . 2003. Mitochondrial D-loop sequence variation with three extant genera of the tribe capriini. Plant and Animal Genome XI. Abstract 134, p 117.
Bunch, T.D., R.C. Evans, S. Wang, C.P Brennand, D.R. Whittier and B.J. Taylor. 2003. Feed efficiency, growth rates and carcass evaluation of lambs of various hair x wool sheep crosses. Proceedings, Western Section, American Society of Animal Science, Vol. 54: 312-314.
Wang, S., T.D. Bunch, R.C. Evans, C.P. Brennand, D.R. Whittier, and B.J Taylor. 2003.Cholesterol level and sensory evaluation for lambs of Various hair x wool sheep crosses. Proceedings, Western Section, American Society of Animal Science, Vol. 54: 396-399.
Wu, C.H., Y.P. Zhang, T.D. Bunch, S. Wang and W. Wang. 2003. Mitochondrial control region sequence variation with the argali wild sheep (Ovis ammon): evolution and conservation relevance. Mammalia 67: 109-118.
Virginia Polytechnic Institute and State University
Journal Articles:
Notter, D. R., S. A. Andrew, and A. M. Zajac. 2003. Responses of hair and wool sheep to a single fixed dose of infective larvae of Haemonchus contortus. Small Ruminant Res. 47:221-225.
Notter, D. R., N. E. Cockett, and T. S. Hadfield. 2003. Evaluation of melatonin receptor 1a as a candidate gene influencing reproduction in a fall-lambing sheep flock. J. Anim. Sci. 81:912-917.
Abstracts and Proceedings:
Notter, D. R. 2003. Contributions of hair sheep to meat production in temperate climate countries. In: dos Santos, E. S. and W. H. de Sousa (Eds.), Anais do II Simpósio Internacional sobre Caprinos e Ovinos de Corte, EMEPA-PB, João Pessoa, Paraíba, Brazil, September 29-October 5, pp. 457-467.
MacKinnon, K. M., L. A. Kuehn, and D. R. Notter. 2003. Pedigree analysis of a closed population of crossbred sheep. J. Anim. Sci. 81(Suppl. 1):67 (Abstr.).
Greiner, S. P., S. K. Duckett, and D. R. Notter. 2003. Effect of breed type on sensory evaluation and fatty acid content of lamb. J. Anim. Sci. 81(Suppl. 1):124 (Abstr.).
Theses:
Vanimisetti, H. B. 2003. Genetics of resistance to Haemonchus contortus infections in sheep. M.S. Thesis.
MacKinnon, K. M. 2003. Analysis of inbreeding in a closed population of crossbred sheep. M. S. Thesis.
Virginia State University
Abstracts and Proceedings papers:
Wildeus, S., J. R. Collins, and D. H. Keisler. 2003. Ovarian response and fertility in postpubertal does and hair sheep ewes to an induced estrus using either MGA or progesterone sponges. Journal of Animal Science, 81, Suppl. 1:127
Turner, K. E., S. Wildeus, and J. R Collins. 2003. Intake, growth, and blood characteristics in pen-fed lambs of three hair sheep breeds. Proceedings American Forage and Grasslands Council, April 26-30, 2003, Lafayette, LA, vol 12, pp.359-363
Wildeus, S., K. E. Turner, S. P. Greiner, and J. R.Collins. 2004. Differences in performance of hair sheep lambs and meat goat kids offered high forage diets with a corn-based supplement. Southern Sect. ASAS Meeting, Tulsa, OK (abstract 112)
Wildeus, S., J. R. Collins, and S. K. Duckett. 2004. Use of ceramic rumen boluses of different sizes for electronic identification of hair sheep lambs. Southern Sect. ASAS Meeting, Tulsa, OK (abstract 113)
Wildeus, S., A. M. Zajac, K. E. Turner, and J. R. Collins. 2004. The effect of Quebracho tannin supplementation on growth and parasitism in young goats and hair sheep grazing parasite-infected pasture. Southern Sect. ASAS Meeting, Tulsa, OK (abstract 115)
University of the Virgin Islands Agricultural Experiment Station
Journal Articles:
Godfrey, R.W and R.E. Dodson. 2003. Effect of supplemental nutrition around lambing on hair sheep ewes and lambs during the dry and wet seasons in the U.S. Virgin Islands. J. Anim. Sci. 81:587-593.
Godfrey, R.W., A.J. Weis and R.E. Dodson. 2003. Effect of flushing hair sheep ewes during the dry and wet seasons in the U.S. Virgin Islands. J. Anim. Vet. Adv. 2:184-190.
Wheaton, J.E and R. W. Godfrey. 2003. Plasma LH, FSH, testosterone, and age at puberty in ram lambs actively immunized against an inhibin -subunit peptide. Theriogenology 60: 933-901.
Henry, D.M. and R.W. Godfrey. 2004. Evaluation of an infrared thermometer for determining the scrotal surface temperature of hair sheep rams in a tropical environment. J. Anim. Vet. Adv. 2:695-699.
Abstracts:
Valenica, E. and R.W. Godfrey. 2003. Supplementation and N fertilization effects on forage availability and weight gains of St. Croix White hair sheep. In: Proc. 39th Caribbean Food Crop Soc., Martinique, FWI, June 30- July 5, 2003.
Valencia, E., Godfrey, R.W. and S. Weiss. 2003. Grazing and supplementation effects of lablab (Lablab purpureus) on weight gains of St. Croix White hair sheep lambs during the dry season. J. Anim. Sci. 81(Suppl. 1):353.
Dickerson, T., R. Godfrey, R. Dodson, A. Weis and S. Willard. 2003. The effect of 6-Methoxybenzoxazolinone (MBOA) on PMSG-induced superovulatory responses in St. Croix White ewes. J. Anim Sci. 81(Suppl 2).
Godfrey, R.W. and A.J. Weis. 2003. Growth and carcass traits of St. Croix White and Dorper X St. Croix White lambs in the tropics. J. Anim Sci. 81(Suppl 2).
Isles, O.T., R.W. Godfrey, R.E. Dodson and A.J. Weis. 2003. Evaluating the relationship between environmental temperature and physiological temperatures in hair sheep rams in the tropics. J. Anim Sci. 81(Suppl 2).
Godfrey, R.W., T. Dickerson, R.E. Dodson, A.J. Weis and S.T. Willard. 2003. Use of the phytoanticipin 6-methoxybenzoxazolinone to enhance the superovulatory response in St. Croix white ewes. Biol. Reprod. 68(Suppl. 1): 146.
Godfrey, R.W., A.J. Weis and R.E. Dodson. 2004. Production traits of St. Croix White and Dorper X St. Croix White lambs grazing native pasture during the dry season in the US Virgin Islands. Abstract presented at Southern Section ASAS in Tulsa, Feb 2004.
University of West Virginia
Knights, M., Q. S. Baptiste, A. B. Dixon, J. L. Pate, D. J. Marsh, E. K. Inskeep and P. E. Lewis. 2003. Effects of dosage of FSH, vehicle and time of treatment on ovulation rate and prolificacy in ewes during the anestrous season. Small Ruminant Res. 50:1-9.
Knights, M., T. Hoehn, D. Marsh, P. Lewis, J. Pate, A. Dixon and K. Inskeep. 2003. Reproductive management in the ewe flock by induction or synchronization of estrus. West Virginia Agricultural and Forestry Experiment Station Bulletin 727.
University of Wisconsin-Madison
Books and Book Chapters:
Berger, Y.M. 2002. Dairy chapter. SID Sheep Production Handbook. American Sheep Industry Association. Vol. 7.
Berger, Y.M. 2004. Fundamental principles of sheep dairying in North America. Edited and printed by UW-Madison Extension Press.
Journal Articles:
Jaeggi J.J., S. Govindasamy-Lucey, Y.M. Berger, M.E. Johnson, B.C. McKusick, D.L. Thomas, and W.L. Wendorff. 2003. Hard ewe?s milk cheese manufactured from milk of three different groups of somatic cell counts. J. Dairy Sci. 86:3082-3089.
Jaeggi, J.J., W.L. Wendorff, J. Romaro, and Y.M. Berger. 2004. Impact of seasonal changes in ovine milk on composition and yield of Manchego cheese. J. Dairy Sci. (accepted)
Thomas, D.L., D. F. Waldron, G. D. Lowe, D. G. Morrical, H. H. Meyer, R. A. High, Y. M. Berger, D. D. Clevenger, G. E. Fogle, R. G. Gottfredson, S. C. Loerch, K. E. McClure, T.D. Willingham, D. L. Zartman, and R. D. Zelinsky. 2003. Length of docked tail and incidence of rectal prolapse in lambs. J. Anim. Sci. 81:2725-2732.
Abstracts and Proceedings:
Caja, G., D. L. Thomas, M. Rovai, and Y. M. Berger. 2003. First results of a comparative trial of different rumen boluses in the electronic identification of US dairy sheep. Book of Abstracts, 54th Annual Meeting of the European Association for Animal Production, Rome, Italy. No. 9:193.
Caja, G., D. L. Thomas, M. Rovai, Y. M. Berger, and T. A. Taylor. 2003. Use of electronic rumen boluses for identification of sheep in the U.S. J. Anim. Sci. 81(Suppl. 1) and J. Dairy Sci. 86(Suppl. 1):280.
Rovai, M., D. L. Thomas, Y. M. Berger, and G. Caja. 2003. Use of digital pictures to study udder morphology in dairy sheep. J. Anim. Sci. 81(Suppl. 1) and J. Dairy Sci. 86(Suppl. 1):191.
Rovai, M., D. L. Thomas, Y. M. Berger, and G. Caja. 2003. Udder traits of dairy ewes on U.S. commercial farms and their effects on milk production. J. Anim. Sci. 81(Suppl. 1) and J. Dairy Sci. 86(Suppl. 1):191.
Rovai, M., D. L. Thomas, Y. M. Berger, and G. Caja. 2003. Udder traits of U.S. dairy ewes and their effects on milking time and milk yield. J. Anim. Sci. 81(Suppl. 1) and J. Dairy Sci. 86(Suppl. 1):191.
Popular Press and Extension:
Thomas, D.L. 2003. Differences among breeds of sheep in the U.S. and their use in efficient sheep production systems. 2003-2004 Sheep Management WisLine Program. Viewed at: [http://www.uwex.edu/ces/animalscience/sheep].
Thomas, David L. 2003. Status and future of public U.S. sheep research. The Shepherd 48(9):8-10.
Thomas, D. L. 2003. Calculation of yield of milk, fat, and protein in dairy sheep. J. Dairy Sheep Assoc. North America. 2(1):4-6.
Oregon State University
Thomas, D.L., D.F. Waldron, G.D. Lowe, D.G. Morrical, H.H. Meyer and R.A. High. 2003. Length of docked tail and the incidence of rectal prolapse in lambs. J. Anim. Sci. 81:2725-2732.
Texas A&M University
Refereed Journal Articles:
Laughlin, A.M., D.F. Waldron, B.F. Craddock, G.R. Engdahl, R.K Dusek, J.E. Huston, C.J. Lupton, D.N. Ueckert, T.L. Shay, and N.E. Cockett. 2003. Use of DNA markers to determine paternity in a multiple-sire mating flock. Sheep & Goat Res. J. 18:14-17.
Rhee, K.S., C.E. Myers, and D.F. Waldron. 2003. Consumer sensory evaluation of plain and seasoned goat meat and beef products. Meat Sci. 65:785-789.
de la Concha-Bermejillo, A., J. Guo, Z. Zhang, and D.F. Waldron. 2003. Severe Orf in young goats. J. Vet. Diag. Inv. 15:423-431.
Schulze, K.S., D.F. Waldron, T.D. Willingham, D.R. Shelby, G.R. Engdahl, E. Gootwine, S. Yoshefi, G. W. Montgomery, M.L. Tate, and E.A. Lord. 2003. Effects of the FecB allele in half-sib families of Rambouillet-cross ewes. Sheep & Goat Res. J. 18:83-88.
Thomas, D.L., D.F. Waldron, G.D. Lowe, D.G. Morrical, H.H. Meyer, R.A. High, Y.M. Berger, D.D. Clevenger, G.E. Fogle, R.G. Gottfredson, S.C. Loerch, K.E. McClure T.D. Willingham, D.L. Zartman, and R.D. Zelinsky. 2003. Length of docked tail and incidence of rectal prolapse in lambs. J. Anim. Sci. 81:2725-2732.
Lupton, C.J., D.F. Waldron, and F.A. Pfeiffer. 2003. Interrelationships of traits measured on fine-wool rams during central performance test. Sheep & Goat Res. J. 18:1-7.
King, D.A., K.L. Voges, D.S. Hale, D.F. Waldron, C.A. Taylor, and J.W. Savell. 2004. Use of high and low voltage electrical stimulation strategies enhance muscle tenderness and color from cabrito carcasses. Meat Sci. (Submitted)
Texas Agricultural Experiment Station Publications:
Waldron, D.F. and C.J. Lupton. 2004. Improvement of sheep through selection of performance-tested and progeny-tested breeding animals. Texas Agric. Exp. Sta. Res. Cen. Rep. 2004-1.
Waldron, D.F. 2004. Sire summary of ram test performance (1995 ? 2004). Texas Agric. Exp. Sta. Res. Cen. Rep. 2004-2.
Theses:
Hart, A.M. 2003. Using real-time ultrasound to measure lamb carcasses and determine yield. M.S. Thesis. Angelo State University.
USDA Meat Animal Research Center
Journal Articles:
Casas, E., B. A. Freking, and K. A. Leymaster. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: II. Reproduction of F1 ewes in fall breeding seasons. J. Anim. Sci. 82:1280-1289.
Freetly, H. C., and K. A. Leymaster. 2004. Relationship between litter birth weight and litter size in six breeds of sheep. J. Anim. Sci. 82:612-618.
Freking, B. A., and K. A. Leymaster. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale Breeds of Sheep: IV. Survival, Growth, and Carcass Traits of F1 Lambs. J. Anim. Sci. (Submitted 4/26/04)
Freking, B. A., T. P. L. Smith, and K. A. Leymaster. 2004. The callipyge mutation for sheep muscular hypertrophy ? Genetics, Physiology, and Meat Quality. Chapter 15. In Muscle Development of Livestock Animals: Physiology, Genetics, and Meat Quality (ed. M. tePas, H. Haagsman, and M. Everts), CAB International. Pp. 317-342.
Heaton, M. P., K. A. Leymaster, B. A. Freking, D. A. Hawk, J. W. Keele, W. M. Snelling, J. M. Fox, C. G. Chitko-McKown, and W. W. Laegreid. 2003. Prion gene sequence variation within diverse groups of U.S. sheep, beef cattle, and deer. Mamm. Genome. 14(11):765-777.
Lupton, C. J., B. A. Freking, and K. A. Leymaster, K.A. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: III. Wool characteristics of F1 ewes. J. Anim. Sci. (Accepted 4/28/04)
Murphy, S. K., B. A. Freking, T. P. L. Smith, C. M. Nolan, A. A. Wylie, H. K. Evans, and R. L. Jirtle. 2004. Abnormal postnatal maintenance of elevated prenatal DLK1 levels in callipyge sheep. Genome Res. (Peer reviewed)
Southey, B. R., S. L. Rodriguez-Zas, and K. A. Leymaster. 2004. Competing risks analysis of lamb mortality in a terminal sire composite population. J. Anim. Sci. (Accepted 6/12/04)
Abstracts and Proceedings:
Casas, E., B. A. Freking, K. A. Leymaster. 2003. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: Productivity of F1 ewes in fall breeding seasons. J. Anim. Sci. J. Anim. Sci. 81(Suppl. 1):67. Abst. No. 266.
Freking, B. A., T. P. L. Smith, and K. A. Leymaster. 2004. Meat quality and the callipyge gene, consumer acceptance and final product. Proc. 7th World Sheep & Wool Congress. Quebec City, Canada. (Accepted)
Heaton, M. P., K. A. Leymaster, B. A. Freking, D. A. Hawk, J. W. Keele, and W. W. Laegreid. 2004. Prion gene sequence variation within diverse groups of U.S. sheep, beef cattle, and deer. Proc. Plant & Animal Genome XII. San Diego, CA, January 10-14, 2004. Abst. No. P311.
Heaton, M. P., K. A. Leymaster, B. A. Freking, and W. W. Laegreid. 2004. Accurate determination of PRNP haplotypes in U.S. sheep. Proc. Plant & Animal Genome XII. San Diego, CA. Abst. No. P312.
Leymaster, K. A., E. Casas, and B. A. Freking. 2004. Evaluation of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds of sheep: Reproduction of F1 ewes in spring mating seasons. J. Anim. Sci. (Accepted)
Shackelford, S. D., K. A. Leymaster, T. L. Wheeler, and M. Koohmaraie. 2003. Effects of breed of sire on carcass composition and sensory traits of lamb. Page 12 in Proc. 56th Ann. Reciprocal Meat Conf., Columbia, MO.
Southey, B. R., S. L. Rodriguez-Zas, and K. A. Leymaster. 2003. Competing risks analysis of lamb mortality. J. Anim. Sci. 81(Suppl. 1):68. Abst. No. 268.
Popular Press:
Leymaster, K. A. 2003. Fundamental aspects of crossbreeding of sheep: Use of breed diversity to improve efficiency of meat production. Sheep Connection 5(1):27-30 (Part I) and 5(2):32-39 (Part II); The Shepherd 48(10):14-23.
Shackelford, S. D., K. A. Leymaster, T. L. Wheeler, and M. Koohmaraie. 2003. Lamb meat quality progress report number 1. Preliminary results of an evaluation of effects of breed of sire on carcass composition and sensory traits of lamb. The Shepherd. 48(7):10-13.
USDA Sheep Experiment Station
Herrmann, L. M., I. Hötzel, W. P. Cheevers, K. Pretty On Top, G. S. Lewis, and D. P. Knowles. 2004. Seven new ovine progressive pneumonia virus (OPPV) field isolates from Dubois Idaho sheep comprise part of OPPV clade II based on surface envelope glycoprotein (SU) sequences. Virus Res. 102:215-220.
Lewis, G. S. 2004. Steroidal regulation of uterine immune defenses. Anim. Reprod. Sci. (Accepted on May 23, 2004).
Wulster-Radcliffe, M. C., S. Wang, and G. S. Lewis. 2004. Transcervical artificial insemination in sheep: Effects of a new transcervical artificial insemination instrument and traversing the cervix on pregnancy and lambing rates. Theriogenology (Accepted on February 2, 2004).
Herrmann L. M., W. P. Cheevers, K. L. Marshall, T. C. McGuire, M. M. Hutton, G. S. Lewis, and D. P. Knowles. 2003. Detection of serum antibodies to ovine progressive pneumonia virus in sheep by using a caprine arthritis-encephalitis virus competitive-inhibition enzyme-linked immunosorbent assay. Clin. Diagn. Lab. Immunol. 10:862-865.
Lewis, G. S. 2003. Steroidal regulation of uterine resistance to bacterial infection in livestock. Reprod. Biol. Endocrinol. 1:117. http://www.rbej.com/content/1/1/117
Lewis, G. S. 2003. Role of ovarian progesterone and potential role of prostaglandin F2? and prostaglandin E2 in modulating the uterine response to infectious bacteria in postpartum ewes. J. Anim. Sci. 81:285-293.
Seals, R. C., M. C. Wulster-Radcliffe, and G. S. Lewis. 2003. Uterine response to infectious bacteria in estrous cyclic ewes. Am. J. Reprod. Immunol. 49:269-278.
Seals, R. C., M. C. Wulster-Radcliffe, and G. S. Lewis. 2002. Modulation of the uterine response to infectious bacteria in postpartum ewes. Am. J. Reprod. Immunol. 47:57-63.
Snowder, G. D., Stellflug, J. N., and Van Vleck.L. D. 2004.Genetic correlation of ram libido score with ewe reproductive traits of four sheep breeds. Applied Animal Behavior Science. (In Press).
Utah State University
Bunch, T.D., S. Wang, C. Wu and Y. Zhang . 2003. Mitochondrial D-loop sequence variation with three extant genera of the tribe capriini. Plant and Animal Genome XI. Abstract 134, p 117.
Bunch, T.D., R.C. Evans, S. Wang, C.P Brennand, D.R. Whittier and B.J. Taylor. 2003. Feed efficiency, growth rates and carcass evaluation of lambs of various hair x wool sheep crosses. Proceedings, Western Section, American Society of Animal Science, Vol. 54: 312-314.
Wang, S., T.D. Bunch, R.C. Evans, C.P. Brennand, D.R. Whittier, and B.J Taylor. 2003.Cholesterol level and sensory evaluation for lambs of Various hair x wool sheep crosses. Proceedings, Western Section, American Society of Animal Science, Vol. 54: 396-399.
Wu, C.H., Y.P. Zhang, T.D. Bunch, S. Wang and W. Wang. 2003. Mitochondrial control region sequence variation with the argali wild sheep (Ovis ammon): evolution and conservation relevance. Mammalia 67: 109-118.
Virginia Polytechnic Institute and State University
Journal Articles:
Notter, D. R., S. A. Andrew, and A. M. Zajac. 2003. Responses of hair and wool sheep to a single fixed dose of infective larvae of Haemonchus contortus. Small Ruminant Res. 47:221-225.
Notter, D. R., N. E. Cockett, and T. S. Hadfield. 2003. Evaluation of melatonin receptor 1a as a candidate gene influencing reproduction in a fall-lambing sheep flock. J. Anim. Sci. 81:912-917.
Abstracts and Proceedings:
Notter, D. R. 2003. Contributions of hair sheep to meat production in temperate climate countries. In: dos Santos, E. S. and W. H. de Sousa (Eds.), Anais do II Simpósio Internacional sobre Caprinos e Ovinos de Corte, EMEPA-PB, João Pessoa, Paraíba, Brazil, September 29-October 5, pp. 457-467.
MacKinnon, K. M., L. A. Kuehn, and D. R. Notter. 2003. Pedigree analysis of a closed population of crossbred sheep. J. Anim. Sci. 81(Suppl. 1):67 (Abstr.).
Greiner, S. P., S. K. Duckett, and D. R. Notter. 2003. Effect of breed type on sensory evaluation and fatty acid content of lamb. J. Anim. Sci. 81(Suppl. 1):124 (Abstr.).
Theses:
Vanimisetti, H. B. 2003. Genetics of resistance to Haemonchus contortus infections in sheep. M.S. Thesis.
MacKinnon, K. M. 2003. Analysis of inbreeding in a closed population of crossbred sheep. M. S. Thesis.
Virginia State University
Abstracts and Proceedings papers:
Wildeus, S., J. R. Collins, and D. H. Keisler. 2003. Ovarian response and fertility in postpubertal does and hair sheep ewes to an induced estrus using either MGA or progesterone sponges. Journal of Animal Science, 81, Suppl. 1:127
Turner, K. E., S. Wildeus, and J. R Collins. 2003. Intake, growth, and blood characteristics in pen-fed lambs of three hair sheep breeds. Proceedings American Forage and Grasslands Council, April 26-30, 2003, Lafayette, LA, vol 12, pp.359-363
Wildeus, S., K. E. Turner, S. P. Greiner, and J. R.Collins. 2004. Differences in performance of hair sheep lambs and meat goat kids offered high forage diets with a corn-based supplement. Southern Sect. ASAS Meeting, Tulsa, OK (abstract 112)
Wildeus, S., J. R. Collins, and S. K. Duckett. 2004. Use of ceramic rumen boluses of different sizes for electronic identification of hair sheep lambs. Southern Sect. ASAS Meeting, Tulsa, OK (abstract 113)
Wildeus, S., A. M. Zajac, K. E. Turner, and J. R. Collins. 2004. The effect of Quebracho tannin supplementation on growth and parasitism in young goats and hair sheep grazing parasite-infected pasture. Southern Sect. ASAS Meeting, Tulsa, OK (abstract 115)
University of the Virgin Islands Agricultural Experiment Station
Journal Articles:
Godfrey, R.W and R.E. Dodson. 2003. Effect of supplemental nutrition around lambing on hair sheep ewes and lambs during the dry and wet seasons in the U.S. Virgin Islands. J. Anim. Sci. 81:587-593.
Godfrey, R.W., A.J. Weis and R.E. Dodson. 2003. Effect of flushing hair sheep ewes during the dry and wet seasons in the U.S. Virgin Islands. J. Anim. Vet. Adv. 2:184-190.
Wheaton, J.E and R. W. Godfrey. 2003. Plasma LH, FSH, testosterone, and age at puberty in ram lambs actively immunized against an inhibin -subunit peptide. Theriogenology 60: 933-901.
Henry, D.M. and R.W. Godfrey. 2004. Evaluation of an infrared thermometer for determining the scrotal surface temperature of hair sheep rams in a tropical environment. J. Anim. Vet. Adv. 2:695-699.
Abstracts:
Valenica, E. and R.W. Godfrey. 2003. Supplementation and N fertilization effects on forage availability and weight gains of St. Croix White hair sheep. In: Proc. 39th Caribbean Food Crop Soc., Martinique, FWI, June 30- July 5, 2003.
Valencia, E., Godfrey, R.W. and S. Weiss. 2003. Grazing and supplementation effects of lablab (Lablab purpureus) on weight gains of St. Croix White hair sheep lambs during the dry season. J. Anim. Sci. 81(Suppl. 1):353.
Dickerson, T., R. Godfrey, R. Dodson, A. Weis and S. Willard. 2003. The effect of 6-Methoxybenzoxazolinone (MBOA) on PMSG-induced superovulatory responses in St. Croix White ewes. J. Anim Sci. 81(Suppl 2).
Godfrey, R.W. and A.J. Weis. 2003. Growth and carcass traits of St. Croix White and Dorper X St. Croix White lambs in the tropics. J. Anim Sci. 81(Suppl 2).
Isles, O.T., R.W. Godfrey, R.E. Dodson and A.J. Weis. 2003. Evaluating the relationship between environmental temperature and physiological temperatures in hair sheep rams in the tropics. J. Anim Sci. 81(Suppl 2).
Godfrey, R.W., T. Dickerson, R.E. Dodson, A.J. Weis and S.T. Willard. 2003. Use of the phytoanticipin 6-methoxybenzoxazolinone to enhance the superovulatory response in St. Croix white ewes. Biol. Reprod. 68(Suppl. 1): 146.
Godfrey, R.W., A.J. Weis and R.E. Dodson. 2004. Production traits of St. Croix White and Dorper X St. Croix White lambs grazing native pasture during the dry season in the US Virgin Islands. Abstract presented at Southern Section ASAS in Tulsa, Feb 2004.
University of West Virginia
Knights, M., Q. S. Baptiste, A. B. Dixon, J. L. Pate, D. J. Marsh, E. K. Inskeep and P. E. Lewis. 2003. Effects of dosage of FSH, vehicle and time of treatment on ovulation rate and prolificacy in ewes during the anestrous season. Small Ruminant Res. 50:1-9.
Knights, M., T. Hoehn, D. Marsh, P. Lewis, J. Pate, A. Dixon and K. Inskeep. 2003. Reproductive management in the ewe flock by induction or synchronization of estrus. West Virginia Agricultural and Forestry Experiment Station Bulletin 727.
University of Wisconsin-Madison
Books and Book Chapters:
Berger, Y.M. 2002. Dairy chapter. SID Sheep Production Handbook. American Sheep Industry Association. Vol. 7.
Berger, Y.M. 2004. Fundamental principles of sheep dairying in North America. Edited and printed by UW-Madison Extension Press.
Journal Articles:
Jaeggi J.J., S. Govindasamy-Lucey, Y.M. Berger, M.E. Johnson, B.C. McKusick, D.L. Thomas, and W.L. Wendorff. 2003. Hard ewe?s milk cheese manufactured from milk of three different groups of somatic cell counts. J. Dairy Sci. 86:3082-3089.
Jaeggi, J.J., W.L. Wendorff, J. Romaro, and Y.M. Berger. 2004. Impact of seasonal changes in ovine milk on composition and yield of Manchego cheese. J. Dairy Sci. (accepted)
Thomas, D.L., D. F. Waldron, G. D. Lowe, D. G. Morrical, H. H. Meyer, R. A. High, Y. M. Berger, D. D. Clevenger, G. E. Fogle, R. G. Gottfredson, S. C. Loerch, K. E. McClure, T.D. Willingham, D. L. Zartman, and R. D. Zelinsky. 2003. Length of docked tail and incidence of rectal prolapse in lambs. J. Anim. Sci. 81:2725-2732.
Abstracts and Proceedings:
Caja, G., D. L. Thomas, M. Rovai, and Y. M. Berger. 2003. First results of a comparative trial of different rumen boluses in the electronic identification of US dairy sheep. Book of Abstracts, 54th Annual Meeting of the European Association for Animal Production, Rome, Italy. No. 9:193.
Caja, G., D. L. Thomas, M. Rovai, Y. M. Berger, and T. A. Taylor. 2003. Use of electronic rumen boluses for identification of sheep in the U.S. J. Anim. Sci. 81(Suppl. 1) and J. Dairy Sci. 86(Suppl. 1):280.
Rovai, M., D. L. Thomas, Y. M. Berger, and G. Caja. 2003. Use of digital pictures to study udder morphology in dairy sheep. J. Anim. Sci. 81(Suppl. 1) and J. Dairy Sci. 86(Suppl. 1):191.
Rovai, M., D. L. Thomas, Y. M. Berger, and G. Caja. 2003. Udder traits of dairy ewes on U.S. commercial farms and their effects on milk production. J. Anim. Sci. 81(Suppl. 1) and J. Dairy Sci. 86(Suppl. 1):191.
Rovai, M., D. L. Thomas, Y. M. Berger, and G. Caja. 2003. Udder traits of U.S. dairy ewes and their effects on milking time and milk yield. J. Anim. Sci. 81(Suppl. 1) and J. Dairy Sci. 86(Suppl. 1):191.
Popular Press and Extension:
Thomas, D.L. 2003. Differences among breeds of sheep in the U.S. and their use in efficient sheep production systems. 2003-2004 Sheep Management WisLine Program. Viewed at: [http://www.uwex.edu/ces/animalscience/sheep].
Thomas, David L. 2003. Status and future of public U.S. sheep research. The Shepherd 48(9):8-10.
Thomas, D. L. 2003. Calculation of yield of milk, fat, and protein in dairy sheep. J. Dairy Sheep Assoc. North America. 2(1):4-6.