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United States Department of Agriculture

Agricultural Research Service

Harvey D Blackburn
Plant And Animal Genetic Resources Preservation Research Unit
Animal Geneticist

Phone: (970) 495-3268
Fax: (970) 221-1427
1111 SOUTH MASON STREET
NCGRP
1111 SOUTH MASON STREET
FORT COLLINS, CO, 80521

Projects
National Animal Germplasm Program
Appropriated (D)
  Accession Number: 423549
Conservation of Model Organisms
Interagency Reimbursable Agreement (I)
  Accession Number: 427242
CONSERVATION OF MODEL ORGANISMS
Reimbursable (R)
  Accession Number: 423648
Development of a Genomics Database for the Cattle and Other Livestock
Specific Cooperative Agreement (S)
  Accession Number: 425602
Regeneration of Y Chromosome in Holstein Cattle
Specific Cooperative Agreement (S)
  Accession Number: 427393
Collection and Evaluation of Swine Genetic Resources
Specific Cooperative Agreement (S)
  Accession Number: 427658

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
A preliminary report on the impact of cryopreservation diluent on ram sperm physiology and cervical artificial insemination - (Proceedings)
Purdy, P.H., Spiller, S.F., Rice, S.D., Koeoke, K.L., Mcguire, E.M., Mcguire, K.E., Stobart, S., Blackburn, H.D. 2014. A preliminary report on the impact of cryopreservation diluent on ram sperm physiology and cervical artificial insemination. Symposium Proceedings. Western Section American Society of Animal Science, June 25-27, 2014, San Angelo, Texas.
North American animal breeding and production: meeting the needs of a changing landscape - (Peer Reviewed Journal)
Blackburn, H.D., Plante, Y. 2014. North American animal breeding and production: meeting the needs of a changing landscape. Journal of Animal Breeding and Genetics. 131:247-248.
Angus sattle at high altitude: Genetic relationships and initial genome-wide association analyses of pulmonary arterial pressure - (Proceedings)
Cockrum, R.R., Zeng, Berge, N.F., Neary, J.M., Garry, F.B., Holt, T., Blackburn, H.D., Thomas, T., Speidel, S.E., Garrick, D.J., Enns, R.M., Thomas, M.G. 2014. Angus sattle at high altitude: Genetic relationships and initial genome-wide association analyses of pulmonary arterial pressure. Symposium Proceedings. World Congress of Genetics Applied to Livestock Production Vancouver, BC, Canada, Aug 17-22, 2014.
Impact of genetic drift on access and benefit sharing under the Nagoya protocol: The case of the Meishan pig - (Peer Reviewed Journal)
Blackburn, H.D., Plante, Y., Rohrer, G.A., Welch, E.W., Paiva, S. 2014. Impact of genetic drift on access and benefit sharing under the Nagoya protocol: The case of the Meishan pig. Journal of Animal Science. 92(4):1405-1411.
Impact of genetic drift on developing access and benefit sharing guidelines under the Nagoya Protocol: The case of Meishan pigs imported into the US - (Abstract Only)
Blackburn, H.D., Plante, Y., Welch, E.W., Rohrer, G.A., Paiva, S.R. 2013. Impact of genetic drift on developing access and benefit sharing guidelines under the Nagoya Protocol: The case of Meishan pigs imported into the US. Meeting Abstract. American Society of Animal Science, Indianapolis, IN, July 8-12, 2013.
Effect of storage time on the viability of cryopreserved bovine spermatozoa - (Abstract Only)
Gallegos, A.I., Ericsson, S.A., Blackburn, H.D., Spiller, S.F., Warnock, B.J., Meador, M.K., Smith, M.W., Purdy, P.H. 2013. Effect of storage time on the viability of cryopreserved bovine spermatozoa. Meeting Abstract. American Society of Animal Science, Indianapolis, IN, July 8-12, 2013.
Genetic variation and differentiation of bison (Bison bison) subspecies and cattle (Bos taurus) breeds and subspecies - (Peer Reviewed Journal)
Cronin, M., Macneil, M., Ninh, V., Leesburg, V.L., Blackburn, H.D., Derr, J. 2013. Genetic variation and differentiation of bison (Bison bison) subspecies and cattle (Bos taurus) breeds and subspecies. Journal of Heredity. 104:500-509.
Genetic variation in bison (bison bison) subspecies and cattle (Bos taurus) breeds and subspecies Reprint Icon - (Peer Reviewed Journal)
Cronin, M.A., MacNeil, M.D., Vu, N., Leesburg, V.L., Blackburn, H.D., Derr, J. 2013. Genetic variation in bison (bison bison) subspecies and cattle (Bos taurus) breeds and subspecies. Journal of Heredity. 104(4):500-509.
Curating seeds and other genetic resources for ethnobiology. In: Salick,J.Konchar, K. and Nesbitt, M., editors. Curatring Biocultural Collections: A handbook - (Book / Chapter)
Dierig, D.A., Blackburn, H.D., Ellis, D.D., Nesbitt, M. 2014. Curating seeds and other genetic resources for ethnobiology. In: Salick,J.Konchar, K. and Nesbitt, M., editors. Curatring Biocultural Collections: A handbook. Book Chapter. Richamand, Surrey, UK: Royal Botanical Gardens, Kew. p. 107-125.
59 Effect of storage duration on post-thaw parameters of bull semen. Reproduction, Fertility and Development 25: 177. - (Abstract Only)
Carwell, D.B., Scott, B.R., Blackburn, H.D., Bondioli, K.R., Gentry, G.T., Godke, R.A. 2012. 59 Effect of storage duration on post-thaw parameters of bull semen. Reproduction, Fertility and Development 25: 177. Meeting Abstract. International Embryo Transfer Society, Hannover, Germany, January 19-22, 2013.
A resource for broadening the genetic base of livestock populations - (Popular Publication)
Blackburn, H.D. 2012. A resource for broadening the genetic base of livestock populations. Popular Publication. 29:4-5.
The animal genetic resource information network (AnimalGRIN) database: A database design and implementation case - (Peer Reviewed Journal)
Irwin, G., Wessel, L.K., Blackburn, H.D. 2012. The animal genetic resource information network (AnimalGRIN) database: A database design and implementation case. Journal of Information Systems Education. 23:19-32.
Isolated Jersey genetics are a treasure trove - (Popular Publication)
Blackburn, H.D. 2012. Isolated Jersey genetics are a treasure trove. Popular Publication. July Issue.
Genetic selection and preservation of genetic diversity - (Peer Reviewed Journal)
Blackburn, H.D. 2012. Genetic selection and preservation of genetic diversity. Reproduction of Domestic Animals. 47:249-254.
185 Cost Effectiveness of Maintaining Research Chicken Populations in Situ Or with Cryopreserved Semen Or Ovaries - (Abstract Only)
Silversides, F.G., Purdy, P.H., Blackburn, H.D. 2012. 185 Cost effectiveness of maintaining research chicken populations in situ or with cryopreserved semen or ovaries. Meeting Abstract. Poultry Science Association, Athens, GA, July 9-12.
Comparative costs of programmes to conserve chicken genetic variation based on maintaining living populations or storing cryopreserved material - (Peer Reviewed Journal)
Silversides, F., Purdy, P.H., Blackburn, H.D. 2013. Comparative costs of programmes to conserve chicken genetic variation based on maintaining living populations or storing cryopreserved material. British Poultry Science. 53:599-607.
Boar sperm quality in lines of pigs selected for either ovulation rate or uterine capacity Reprint Icon - (Peer Reviewed Journal)
Freking, B.A., Purdy, P.H., Spiller, S.F., Welsh, C.S., Blackburn, H.D. 2012. Boar sperm quality in lines of pigs selected for either ovulation rate or uterine capacity. Journal of Animal Science. 90(8):2515-2523.
Genetic diversity of Ovis aries populations near domestication centers and in the new world - (Peer Reviewed Journal)
Blackburn, H.D., Toishibekov, Y., Toishibekov, M., Welsh, C.S., Spiller, S.F., Brown, M.A., Pavia, S. 2011. Genetic diversity of Ovis aries populations near domestication centers and in the new world. Genetica. 139:1169-1178.
Combining US and Brazilian microsatellite data for a meta-analysis of sheep (Ovis aries) breed diversity: Facilitating the FAO Global Plan of Action for conserving animal genetic resources - (Peer Reviewed Journal)
Paiva, S., Mariante, A., Blackburn, H.D. 2011. Combining US and Brazilian microsatellite data for a meta-analysis of sheep (Ovis aries) breed diversity: Facilitating the FAO Global Plan of Action for conserving animal genetic resources. Journal of Heredity. 102:697-704.
Cryoconservation of animal genetic resources. Animal Production and Health Guidelines No. 12 - (Book / Chapter)
Blackburn, H.D., Godke, R., Purdy, P.H., Hiemstra, S., Woelders, H., Mariante, A., Pizzi, F., Boettcher, P. 2012. Cryoconservation of animal genetic resources. Animal Production and Health Guidelines No. 12. Complete Book. FAO, Rome p. 222.
Ex situ conservation of Holstein-Friesian cattle: Comparing the Dutch, French and USA germplasm collections - (Peer Reviewed Journal)
Danchin-Burge, C., Hiemstra, S.J., Blackburn, H.D. 2011. Ex situ conservation of Holstein-Friesian cattle: Comparing the Dutch, French and USA germplasm collections. Journal of Dairy Science. 94:4100-4108.
Genetic Structure and Diversity among U.S. sheep breeds: Identification of the major gene pools. - (Peer Reviewed Journal)
Blackburn, H.D., Paiva, S.R., Wildeus, S., Getz, W., Stobart, R., Bixby, D., Purdy, P.H., Welsh, C.S., Spiller, S.F., Brown, M.A. 2011. Genetic Structure and Diversity among U.S. sheep breeds: Identification of the major gene pools. Journal of Animal Science. 89:2336-2348.
Inbreeding levels in swine: Ramifications for Genetic Diversity - (Trade Journal)
Blackburn, H.D., Welsh, C.S. 2010. Inbreeding levels in swine: Ramifications for Genetic Diversity. Extension Publications The American Livestock Breeds Conservancy 27:5-6.
The USDA national animal germplasm program and the aquatic species collection. In: T.R. Tiersch and C.C. Green (eds.) Cryopreservation in Aquatic Species, 2nd Edition. World Aquaculture Society, Baton Rouge, LA - (Book / Chapter)
Blackburn, H.D. 2011. The USDA national animal germplasm program and the aquatic species collection. pp. 774-779. In: T.R. Tiersch and C.C. Green (eds.) Cryopreservation in Aquatic Species, 2nd Edition. World Aquaculture Society, Baton Rouge, LA. Book Chapter.
The Relationship between Conservation Policy and Aquatic Genetic Resources. In: T.R. Tiersch and C.C. Green (eds.) Cryopreservation in Aquatic Species, 2nd Edition. World Aquaculture Society, Baton Rouge, LA. - (Book / Chapter)
Long, J., Blackburn, H.D. 2011. The Relationship between Conservation Policy and Aquatic Genetic Resources. pp. 977-983. In: T.R. Tiersch and C.C. Green (eds.) Cryopreservation in Aquatic Species, 2nd Edition. World Aquaculture Society, Baton Rouge, LA. Book Chapter.
Options and legal requirements for national and regional animal genetic resources collections - (Peer Reviewed Journal)
Blackburn, H.D., Boettcher, P. 2010. Options and legal requirements for national and regional animal genetic resources collections. Animal Genetic Resources Information. 47:91-100.
Effect of number of motile frozen-thawed boar sperm and number of fixed-time inseminations on fertility in estrous-synchronized gilts - (Peer Reviewed Journal)
Spencer, K.W., Purdy, P.H., Blackburn, H.D., Spiller, S.F., Stewart, T.S., Knox, R.V. 2010. Effect of number of motile frozen-thawed boar sperm and number of fixed-time inseminations on fertility in estrous-synchronized gilts. Animal Reproduction Sciences. 121:259-266.
Reproductive biotechnologies and management of animal genetic resources - (Proceedings)
Blackburn, H.D., Purdy, P.H. 2010. Reproductive biotechnologies and management of animal genetic resources. XIIIth European Poultry Conference, Tours France, August 23-27, 2010. Meeting Proceedings.
Implications of the pH and temperature of diluted, cooled boar semen on fresh and frozen-thawed sperm motility characteristics - (Peer Reviewed Journal)
Purdy, P.H., Tharp, N., Stewart, T., Spiller, S.F., Blackburn, H.D. 2010. Implications of the pH and temperature of diluted, cooled boar semen on fresh and frozen-thawed sperm motility characteristics. Theriogenology. 74:1304-1310.
The facilitating roles and uses of gene banks in addressing the global plan of action - (Proceedings)
Blackburn, H.D. 2010. The facilitating roles and uses of gene banks in addressing the global plan of action. World Congress on Genetics Applied to Livestock Production August 1-6, 2010 Leipzig, Germany. Meeting Proceedings.
Ex-situ conservaton of Holstein-Friesian cattle comparing the Dutch, French and USA germplasm collections - (Proceedings)
Danchin-Burge, C., Blackburn, H.D., Hiemstra, S.J. 2010. Ex-situ conservaton of Holstein-Friesian cattle comparing the Dutch, French and USA germplasm collections. 9th World Congress on Genetics Applied to Livestock Production, August 1-6, 2010, Leipzig, Germany. Meeting Proceedings.
Meta-analysis of microsatellite data from US and Brazil sheep breeds - (Proceedings)
Paiva, S.R., Blackburn, H.D., Mariante, A.S. 2010. Meta-analysis of microsatellite data from US and Brazil sheep breeds. 9th World Congress on Genetics Applied to Livestock Production, August 1-6, 2010, Leipzig, Germany. Meeting Proceedings.
Pedigree Analysis Of Five U.S. Swine Breeds And The Implications For Genetic Conservation - (Peer Reviewed Journal)
Welsh, C.S., Stewart, T.S., Schwab, C., Blackburn, H.D. 2010. Pedigree Analysis Of Five U.S. Swine Breeds And The Implications For Genetic Conservation. Journal of Animal Science. 88:1610–1618.
19 Beef cattle pregnancy rates following insemination with aged frozen angus semen - (Abstract Only)
Carwell, D.B., Pitchford, J.A., Gentry, G.T., Blackburn, H.D., Bondioli, K.R., Godke, R.A. 2009. 19 Beef cattle pregnancy rates following insemination with aged frozen angus semen. Journal Of Reproduction, Fertility And Development 22:167-168.
Inseminating fresh or cryopreserved semen for maximum efficiency: implications for gene banks and industry - (Peer Reviewed Journal)
Blackburn, H.D., Silversides, F., Purdy, P.H. 2009. Inseminating fresh or cryopreserved semen for maximum efficiency: implications for gene banks and industry. Poultry Science. 88:2192-2198.
Evaluation of Glycerol Removal Techniques, Cryoprotectants, and Insemination Methods for Cryopreserving Rooster Sperm with Implications for Breed and/or Line Regeneration - (Peer Reviewed Journal)
Purdy, P.H., Song, Y., Silversides, F.G., Blackburn, H.D. 2009. Evaluation of Glycerol Removal Techniques, Cryoprotectants, and Insemination Methods for Cryopreserving Rooster Sperm with Implications for Breed and/or Line Regeneration. Poultry Science. 88:2184-2191
The fertility of ram sperm held for 24 hours at 5 ºC prior to cryopreservation - (Peer Reviewed Journal)
Purdy, P.H., Moce, E., Stobart, R., Murdoch, W.J., Moss, G.E., Larson, B., Ramsey, S., Graham, J.K., Blackburn, H.D. 2009. The fertility of ram sperm held for 24 hours at 5 ºC prior to cryopreservation. Animal Reproduction Sciences. 118:231-235.
Conservation of Swine Genetics by the National Animal Germplasm Program (NAGP) after One Decade Reprint Icon - (Popular Publication)
Blackburn, H.D., Stewart, T., Purdy, P.H. 2009. Conservation of Swine Genetics by the National Animal Germplasm Program (NAGP) after One Decade. National Hog Farmer.
Population Status Of Major U.S. Swine Breeds - (Proceedings)
Welsh, C.S., Blackburn, H.D., Schwab, C. 2009. Population Status Of Major U.S. Swine Breeds. American Society of Animal Science Western Section, June 16-18, 2009 Fort Collins, CO. Proceedings. 60:42-45
Investigation of a novel non-surgical method of artificial insemination for sheep - (Proceedings)
PPurdy, P.H., Blackburn, H.D., Larson, B., Stobart, R. 2009. Investigation of a novel non-surgical method of artificial insemination for sheep. Western section of Amercan Society of animal Science, Fort Collins, CO, June 16-18, 2009.
Comparison of Genetic Diversity Between US and Kazak Sheep Breeds. - (Abstract Only)
Blackburn, H.D., Toishibekov, Y., Toishibekov, M., Welsh, C.S., Spiller, S.F., Brown, M. 2009. Comparison of Genetic Diversity Between US and Kazak Sheep Breeds. Journal of Animal Science 87:401. Annual meeting of the American Society of Animal Science, July 13-17, 2009. Montreal Canada.
Influence of pre-cryopreservation pH and temperature on boar semen quality - (Abstract Only)
Tharp, N.E., Purdy, P.H., Blackburn, H.D., Spiller, S.F., Stewart, T. 2009. Influence of pre-cryopreservation pH and temperature on boar semen quality. Midwest Section American Society of Animal Science, Des Moines, IA, March 16-18, 2008.
Evaluation of new techniques to enhance the use of A.I. on farm. - (Abstract Only)
PPurdy, P.H., Stobart, R.H., Larson, B., Blackburn, H.D. 2009. Evaluation of new techniques to enhance the use of A.I. on farm. American Sheep Industry Association Annual Conference, San Diego, CA, January 21-24, 2009.
Effect of number of motile sperm and number of inseminations using frozen boar semen on fertility in gilts - (Trade Journal)
Spencer, K., Purdy, P.H., Blackburn, H.D., Spiller, S.F., Welsh, C.S., Stewart, T., Breen, S., Taibl, J., Yantis, B., Knox, R. 2008. Effect of number of motile sperm and number of inseminations using frozen boar semen on fertility in gilts. National Hog Farmer. http://nationalhogfarmer.com/genetics-reproduction/artificial-insemination/1215-boar-semen-use/.
Perspectives on cryopreservation, quality control, and artificial insemination of frozen-thawed boar sperm in a national repository - (Proceedings)
Purdy, P.H., Knox, R., Singleton, W., Spencer, K., Spiller, S.F., Stewart, T., Tharp, N., Welsh, C.S., Blackburn, H.D. 2008. Perspectives on cryopreservation, quality control, and artificial insemination of frozen-thawed boar sperm in a national repository. Symposium Proceedings. Midwest Boar Stud Managers Conference, Saint Louis, MO August 7-8, 2008.
Genebank Development for the Conservation of Livestock Genetic Resources in the United States of America Reprint Icon - (Peer Reviewed Journal)
Blackburn, H.D. 2009. Genebank Development for the Conservation of Livestock Genetic Resources in the United States of America. Livestock Science 120:196-203.
Animal Genetic Resource Trade Flows: The Utilization of Newly Imported Breeds and the Gene Flow of Imported Animals in the United States of America - (Peer Reviewed Journal)
Blackburn, H.D., Gollin, D. 2009. Animal Genetic Resource Trade Flows: The Utilization of Newly Imported Breeds and the Gene Flow of Imported Animals in the United States of America. Livestock Science 120:240-247.
Animal Genetic Resource Trade Flows: Economic Assessment Reprint Icon - (Peer Reviewed Journal)
Gollin, D., Van Dusen, E., Blackburn, H.D. 2009. Animal Genetic Resource Trade Flows: Economic Assessment. Livestock Science 120:248-255.
Genetic Diversity of US Sheep Breeds - (Abstract Only)
Blackburn, H.D., Brown, M., Wildeus, S., Stobart, R., Bixby, D., Dzakuma, J., Ericsson, S., Getz, W., Cockett, N., Matsas, D., Welsh, C.S., Spiller, S.F. 2008. Genetic Diversity of US Sheep Breeds. Meeting Abstract.
Boar fertility and semen quality characteristics in lines of pigs selected for component traits of female reproduction Reprint Icon - (Abstract Only)
Freking, B.A., Purdy, P.H., Welsh, C.S., Spiller, S.F., Blackburn, H.D. 2008. Boar fertility and semen quality characteristics in lines of pigs selected for component traits of female reproduction [abstract]. Journal of Animal Science Supplement. 86(E-Suppl. 2):208-209. Abstract #W50.
Integrating policies for the management of animal genetic resources with demand for livestock products and environmental sustainability - (Peer Reviewed Journal)
Blackburn, H.D. 2007. Integrating policies for the management of animal genetic resources with demand for livestock products and environmental sustainability. Animal Genetic Resources Information. 41:53-64.
Semen cryopreservation research seeks higher fertility rates in rainbow trout - (Popular Publication)
Silverstein, J.T., Purdy, P.H., Blackburn, H.D. 2007. Semen cryopreservation research seeks higher fertility rates in rainbow trout. Global Aquaculture Advocate. 10(2):84.
Relationship of flow cytometric evaluations of cryopreserved rainbow trout Oncorhynchus mykiss sperm with fertility - (Abstract Only)
Purdy, P.H., Blackburn, H.D., Silverstein, J. 2007. Relationship of flow cytometric evaluations of cryopreserved rainbow trout Oncorhynchus mykiss sperm with fertility. Aquaculture 2007 Annual Meeting. p 734.
Genetic Relationships Between Feral Cattle from Chirikof Island, Alaska, and Other Breeds Reprint Icon - (Peer Reviewed Journal)
MacNeil, M.D., Cronin, M.A., Blackburn, H.D., Richards, C.M., Lockwood, D.R., Kantanen, J., Alexander, L.J. 2007. Genetic relationships between feral cattle from Chirikof Island, Alaska, and other breeds. Animal Genetics 38:193-197.
A Method for Cryopreserving Chicken Primordial Germ Cells - (Peer Reviewed Journal)
Moore, D.T., Purdy, P.H., Blackburn, H.D. 2006. A Method for Cryopreserving Chicken Primordial Germ Cells. Poultry Science. 85:1784–1790.
Current Efforts in Conservation of Animal Genetic Diversity - (Abstract Only)
Blackburn, H.D., Bixby, D.E. 2006. Current efforts in conservation of animal genetic diversity. Journal of Animal Science. 84(Supl 1):422.
Policies for the Management of Animal Genetic Resources - (Peer Reviewed Journal)
Blackburn, H.D., Mezzadra, C. 2006. Policies for the management of animal genetic resources. 8th World Congress of Genetics Applied in Livestock Production. 33(2):1-7.
Genetic Relationships among Breeds of Beef Cattle in the United States That Originated from the British Isles, Iberian Penninsula, Or West-Central Europe - (Proceedings)
Macneil, M.D., Cronin, M.A., Blackburn, H.D., Alexander, L.J. 2006. Genetic relationships among breeds of beef cattle in the united states that originated from the british isles, iberian penninsula, or west-central europe. World Congress of Genetics Applied in Livestock Production 32(2):1-4.
Variation in Sperm Cell Quality in Cryopreserved Boar Semen - (Peer Reviewed Journal)
Stewart, T., Gunsett, F., Welsh, C.S., Spiller, S.F., Purdy, P.H., Blackburn, H.D. 2006. Variation in sperm cell quality in cryopreserved boar semen. 8th World Congress of Genetics Applied in Livestock Production. 11(23):1-4.
U.S. Swine Genetic Resources and the National Animal Germplasm Program - (Proceedings)
Blackburn, H.D., Welsh, C.S., Stewart, T. 2005. U.s. swine genetic resources and the national animal germplasm program. Swine Improvement Federation Proceedings.
National Animal Germplasm Program: Challenges and Opportunities for Poultry Genetic Resources - (Peer Reviewed Journal)
Blackburn, H.D. 2006. National animal germplasm program: challenges and opportunities for poultry genetic resources. Poultry Science. 85:210-215.
Collection and Freezing of Angora Embryos for the USDA Animal Germplasm Repository - (Abstract Only)
Blackburn, H.D., Mcallister, J.M., Purpera, M., Landry, A., Olcott, B., Bondioli, K., Bushnell, S., Godke, R.A., Loetz, E. 2005. Collection and freezing of angora embryos for the usda animal germplasm repository. ASAS Southern Section Meeting, February 4-8, 2006. Journal of Animal Science. 84(Supl 2):24-25.
Within Breed Selection of Boars for a Gene Bank - (Abstract Only)
Blackburn, H.D., Welsh, C.S., Stewart, T. 2005. Within breed selection of boars for a gene bank. Journal of Animal Science. 83(Supl 1):138.
Changes in Inbreeding of U.S. Herefords During the Twentieth Century - (Peer Reviewed Journal)
Cleveland, M.A., Blackburn, H.D., Enns, R.M., Garrick, D.J. 2005. Changes in inbreeding of u.s. herefords during the twentieth century. Journal of Animal Science. Vol. 83 #5, MS#4708, pp. 992-1001.
Genetic Diversity in and Conservation Strategy Considerations for Navajo-Churro Sheep - (Peer Reviewed Journal)
Maiwashe, N., Blackburn, H.D. 2004. Genetic diversity in and conservation strategy considerations for navajo churro sheep. Journal of Animal Science. 82:2900-2905.
Examining the Genetic Diversity of Hereford Cattle - (Abstract Only)
Blackburn, H.D., Cleveland, M.A., Enns, R.M., Garrick, D.J. 2004. Examining the genetic diversity of hereford cattle. Journal of Animal Science. 82(Suppl 1):451.
Evaluation of Predictions of Body Weight and Feed Intake by Growing Crossbred Boer Goats with a Goat Simulation Model - (Abstract Only)
Villaguiran, M., Nuti, L.C., Gipson, T.A., Goetsch, A.L., Blackburn, H.D. 2004. Evaluation of predictions of body weight and feed intake by growing crossbred boer goats with a goat simulation model. Journal of Animal Science. 82(Suppl 1):357.
Spanish Buck Ss-B Inhibin/activin (Inhbb) Microsatellite Polymorphisms - (Abstract Only)
Realivasquez, R., Ericsson, S.A., Spiller, S.F., Campbell, W.T., Sternes, K.L., Purdy, P.H., Blackburn, H.D., Dzakuma, J.M. 2004. Spanish buck ss-b inhibin/activin (INHBB) microsatellite polymorphisms. American Society of Animal Science/American Society of Dairy Science/Poultry Science Association Annual Meeting, July 25-29, 2004, St. Louis, Missouri. Journal of Animal Science Supplement 2004. 82(Suppl 1): 377-378.
Inha Microsatellite Polymorphisms in Angora Bucks - (Abstract Only)
Spiller, S.F., Ericsson, S.A., Realivasquez, R., Campbell, W.T., Sterns, K.L., Purdy, P.H., Blackburn, H.D., Dzakuma, J.M. 2004. INHA microsatellite polymorphisms in angora bucks. American Society of Animal Science/American Society of Dairy Science/Poultry Science Association Annual Meeting, July 25-29, 2004, St. Louis, Missouri. Journal of Animal Science 2004. 82(Suppl 1):378.
International Animal Germplasm Exchange - (Book / Chapter)
Blackburn, H.D. 2004. International animal germplasm exchange. Encyclopedia of Animal Science. 559-561.
Development of National Animal Genetic Resource Program - (Peer Reviewed Journal)
Blackburn, H.D. 2004. Development of national animal genetic resource program. Reproduction, Fertility and Development. 16:27-32.
Big Sagebrush Leaf Area Dynamics on a Burned, Grazed and Control Site in the Sagebrush Steppe - (Proceedings)
Hendrickson, J.R., D.A. Johnson, N.Z. Saliendra, J.W. Walker, and H.D. Blackburn. Big Sagebrush Leaf Area Dynamics on a Burned, Grazed and Control Site in the Sagebrush Steppe. 2003. Society of Range Management Annual Meeting, Casper, WY.
Big Sagebrush Leaf Area Dynamics on a Burned, Grazed and Control Site in the Sagebrush Steppe - (Abstract Only)
Hendrickson, J.R., Johnson, D.A., Saliendra, N.Z., Walker, J.W., Blackburn, H.D. 2003. Big sagebrush leaf area dynamics on a burned, grazed and control site in the sagebrush steppe. Range Management Meeting Proceedings.
The Effects of Extender and Freeze Rate on Pre-and Post-Thaw Casa Parameters of Warhill Ram Semen - (Abstract Only)
Sharkey, S.C., Blackburn, H.D., Kimberling, C. 2002. The effects of extender and freeze rate on pre-and post-thaw casa parameters of warhill ram semen. Cryobiology. XVII.
Management of U.S. Genetic Resources - (Proceedings)
Blackburn, H.D. 2002. Management of u.s. genetic resources. World Congress of Genetics Applied in Livestock Production. 33:521-524.
Goat Growth Model: Genotype X Nutritional Environmental Interactions - (Proceedings)
Dzakuma, J.M., Risch, .E., Blackburn, H.D. 2002. Goat growth model: genotype x nutritional environmental interactions. World Congress of Genetics Applied in Livestock Production. 31:237-240.
Genetic Diversity and Relationships of Hair Sheep Breeds of the Americas: First Results - (Proceedings)
Muigai, A.W., Hirbo, .J., Rege, J.0., Sharkey, .S., Blackburn, H.D., Hanotte, .O. 2002. Genetic diversity and relationships of hair sheep breeds of the americas: first results. World Congress of Genetics Applied in Livestock Production. 33:573-576.
Predicted Rate of Inbreeding for a Closed Line of Hereford Cattle - (Proceedings)
Tseveenjav, .B., Maiwashe, .N., Golden, B.L., Blackburn, H.D. 2002. Predicted rate of inbreeding for a closed line of hereford cattle. Western Section of Animal Science Proceedings. 52:105-107.
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Last Modified: 12/25/2014