Publications (Clicking on the reprint icon will take you to the publication reprint.)

Boar sperm quality in lines of pigs selected for either ovulation rate or uterine capacity - (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.

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.

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.

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

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.

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.

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 - (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.

THRESHOLD MODEL ANALYSIS OF LAMB SURVIVABILITY IN ROMNEY SHEEP - (Peer Reviewed Journal)

Welsh, C.S., Garrick, D.J., Enns, R.M., Nicoll, G.B. 2006. Threshold model analysis of lamb survivability in romney sheep. New Zealand Journal of Agricultural Research. 49:411-418.

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.

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.