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Dr. Silvia's Picture

 

 

 

 

 

 

 

William J. Silvia, Ph. D.

Professor, Reproductive Physiology;  Dairy
Department of Animal Sciences
University of Kentucky
405 W.P. Garrigus Building
Lexington, KY 40546-0215
Phone:  (859) 257-7541
FAX:  (859) 323-1027
E-mail:  wsilvia@uky.edu
 


EDUCATION

Ph.D. Colorado State University, 1980-1985, Reproductive Endocrinology  

M.S. West Virginia University, 1978-1980, Reproductive Physiology  

B.S. Cornell University, 1974-1978, Animal Science


RESEARCH INTERESTS

Formation, maintenance and treatment of ovarian follicular cysts

Endocrine regulation of estrous expression in dairy cows 

Endocrine factors that influence fertility in dairy cows 

Endocrine regulation of uterine prostaglandin secretion in domestic livestock

 


Recent Review Articles and Book Chapters

Silvia,W.J., T.B. Hatler, A.M. Nugent and L.F. Laranja da Fonseca. 2002. Ovarian follicular cysts: An abnormality in folliculogenesis. Domestic Animal Endocrinology: 23:167-177.

Silvia, W.J. 1999. The role of uterine and ovarian hormones in luteolysis: a comparison among species. Reprod. Domest. Anim. 34:317-328.

Silvia, W.J. 1999. Eicosanoids. in Encyclopedia of Reproduction (E. Knobil, J. Neill eds). Academic Press Inc., New York. pp 991-1001.

Recent Publications

Hatler, T.B., S.H. Hayes, L.H. Anderson, and W.J. Silvia. Effect of a single injection of progesterone on ovarian follicular cysts in lactating dairy cows.ÿThe Veterinary Journal 172:329-333. 2006.

Kasimanickam, R., R.L. Nebel, I.D. Peeler, W.J. Silvia, K.T. Wolf, A.J. McAllister, and B.G. Cassell.ÿBreed differences in competitive indices of Holstein and Jersey bulls and their association with sperm DNA fragmentation indices and plasma membrane integrity.ÿ Theriogenology 66:1307-1315. 2006.

Silvia, W.J. Addressing the decline in reproductive performance of lactating dairy cows: a researcher’s perspective. Veterinary Sciences Tomorrow (on line journal) Vol. 3: http://www.vetscite.org/cgi-bin/pw.exe/Issue4/000068/000068.htm. 2003.

Hatler,T.B., A.M. Nugent, S.H. Hayes, D.W. Yelton and W.J. Silvia. The relationship between endogenous progesterone and follicular dynamics in lactating dairy cows with ovarian follicular cysts. Biology of Reproduction 69:218-223. 2003.

Bogaki, M., W.J. Silvia, R. Rekawiecki, and J. Kotwica. 2002. Direct inhibitory effect of progesterone on oxytocin-induced secretion of prostaglandin F2a from bovine endometrial tissue. Biology of Reproduction 67:184-188.

Nugent, A.M., T.B. Hatler, and W.J. Silvia. 2002. The effect of intramammary infusion of Eschericia coli endotoxin on ovulation in lactating dairy cows. Reproductive Biology 2:295-309.

Silvia, W.J., R.W. Hemken, and T.B. Hatler. 2002. Timing of onset of somatotropin supplementation on reproductive performance in dairy cows. Journal of Dairy Science 85:384-389.

Washburn, S.P., W.J. Silvia, C.H. Brown, B.T. McDaniel, and A.J. McAllister. 2002. Trends in reproductive performance in southeastern Holstein and Jersey dairy herds. Journal of Dairy Science 85:244-251.

Silvia, W.J., T.B. Hatler, A.M. Nugent, and L.F. Laranja da Fonseca. Ovarian follicular cysts: An abnormality in folliculogenesis. Domestic Animal Endocrinology 23:167-177.

Hatler,T.B., A.M. Nugent, S.H. Hayes, D.W. Yelton and W.J. Silvia. 2003. The relationship between endogenous progesterone and follicular dynamics in lactating dairy cows with ovarian follicular cysts. Biol. Reprod. 69:218-223.

Nugent,A.M., T.B. Hatler and W.J. Silvia. 2002. The Effect of intramammary infusion of Eschericia coli endotoxin on ovulation in lactating dairy cows. Reprod. Biol. 2:295-309.

Bogaki, M., W.J. Silvia, R. Rekawiecki and J. Kotwica. 2002. Direct inhibitory effect of progesterone on oxytocin-induced secretion of prostaglandin F2a from bovine endometrial tissue. Biol. Reprod. 67:184-188.

Washburn,S.P., W.J. Silvia, C.H. Brown, B.T. McDaniel and A.J. McAllister. 2002. Trends in reproductive performance in southeastern Holstein and Jersey dairy herds. J. Dairy Sci. 85:244-251.

Silvia,W.J., R.W. Hemken and T.B. Hatler. 2002. Timing of onset of somatotropin supplementation on reproductive performance in dairy cows. J. Dairy Sci. 85:384-389.

Refereed Journal Articles

Silvia, W.J., A.S. McGinnis and T.B. Hatler. A comparison of adrenal gland function in lactating dairy cows with or without ovarian follicular cysts. Reproductive Biology 5:19-29. 2005.

Hatler, T.B., S.H. Hayes, L.H. Anderson and W.J. Silvia. Effect of a single injection of progesterone on ovarian follicular cysts in lactating dairy cows. The Veterinary Journal 170 (accessible online). 2005.

Abstracts

Reames, P., T.B. Hatler and W.J. Silvia. Behavioral and endocrine responses to estradiol-17b (E) in ovariectomized Holstein cows. Journal of Dairy Science 83 (suppl. 1):37. 2005.

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