Biography:Peter J. Hansen

Peter J. Hansen
Born	(1956-11-23)November 23, 1956 Oak Park, Illinois
Nationality	United States
Alma mater	University of Wisconsin–Madison University of Illinois at Urbana–Champaign
Scientific career
Fields	Animal Science, Reproductive Physiology, Developmental Biology, Environmental Physiology
Institutions	University of Florida
Doctoral advisor	Edward R. Hauser
Website	www.animal.ufl.edu/hansen

Peter J. Hansen is an United States animal scientist and physiologist who serves as distinguished professor and L.E. "Red" Professor of Animal Sciences in the Department of Animal Sciences at University of Florida

Research

Hansen's interest in livestock species started early in life while staying with relatives in County Wexford Ireland He first did research while an undergraduate in the Dept. of Dairy Science at the University of Illinois under the tutelage of Charles E. Graves. His doctoral research focused on regulation of reproduction by photoperiod in cattle and mice. Postdoctoral work with Roberts and Bazer kindled a love for understanding the establishment and maintenance of pregnancy, which subsequently became a career-long research interest. Among the most notable achievements as a faculty member at Florida has been identifying embryokines (see embryokine) that regulate development of the preimplantation embryo, demonstrating sex-dependent developmental programming during the preimplantation period, understanding how elevated temperature compromises reproduction, development of embryo transfer to increase pregnancy rate in heat-stressed cows, demonstration of the importance of the slick mutation in the prolactin receptor gene for increasing thermotolerance of cattle, and characterization of mechanisms for inhibition of uterine immune function by progesterone.

Notable Awards

Hansen was the recipient of the highest awards given by the American Society of Reproductive Immunology and American Dairy Science Association. He is a Fellow of the American Association for the Advancement of Science (2007), American Dairy Science Association (2009) and American Society of Animal Science (2018).

Selected publications

"Seasonal modulation of puberty and the postpartum anestrus in cattle: A review". Livestock Production Science 12 (4): 309–327. June 1985. doi:10.1016/0301-6226(85)90131-9. 

"Physiological and cellular adaptations of zebu cattle to thermal stress". Animal Reproduction Science 82-83: 349–369. July 2004. doi:10.1016/j.anireprosci.2004.04.011. PMID 15271465. 

"Effects of heat stress on mammalian reproduction". Philosophical Transactions of the Royal Society B: Biological Sciences 364 (1534): 3341–2250. November 2009. doi:10.1098/rstb.2009.0131. PMID 19833646. 

"Sex and the preimplantation embryo: implications of sexual dimorphism in the preimplantation period for maternal programming of embryonic development". Cell and Tissue Research 363 (1): 237–247. January 2016. doi:10.1007/s00441-015-2287-4. PMID 26391275. 

"Regulation of present and future development by maternal regulatory signals acting on the embryo during the morula to blastocyst transition - insights from the cow". Biology of Reproduction 101 (3): 526–537. September 2019. doi:10.1093/biolre/ioz030. PMID 31220231. 

External links

• Peter J. Hansen publications indexed by Google Scholar