Trish Berger

Trish Berger

Position Title
Professor of Animal Science

Department of Animal Science, College of Agricultural and Environmental Sciences

2147 Meyer Hall

Profile Introduction

Fertilization emphasizing receptor-ligands involved in sperm-oocyte plasma membrane interactions; subfertility and reproductive toxicant models.

Research Interests

Fertilization emphasizing receptor-ligands involved in sperm-oocyte plasma membrane interactions; subfertility and reproductive toxicant models. Factors driving Sertoli cell proliferation in response to reduced endogenous estrogens.

Grad Group Affiliations

  • Animal Biology

Specialties / Focus

  • Cellular Physiology
  • Domestic Animal Physiology
  • Reproductive Physiology


  • NPB 121 Physiology of Reproduction, Winter
  • NPB 121L Physiology of Reproduction Laboratory, Winter
  • ABG 200A Integrated Animal Biology, Fall
  • MCP 222 mammalian Gametogenesis and Fertilization, Spring


  • Gamete Biology Laboratory
    • Barbara Nitta-Oda Eddy Kao Kimberly Katleba Erin Legacki

Professional Societies

  • American Society of Cell Biology
  • Society for the Study of Reproduction


  • 1975 BA Biochemistry University of Kansas
  • 1977 MS Animal Science Purdue University
  • 1980 PhD Animal Science Purdue University


Wu, KL and Berger, T. (2008) Ovarian gene expression is stable after exposure to trichloroethylene. Toxicology Letters doi:10.1016/j.toxlet.2007.12.008

Berger T, McCarthy, M, Pearl CA, At-Taras E, Roser JF, Conley, A. (2007) Reducing endogenous estrogens during the neonatal and juvenile periods affects reproductive tract development and sperm production in postpuberal boars. Animal Reproduction Science doi:10.1016/j.anireprosci.2007.10.003

Berger T, Roberts B. (in press) Reduced immunolabeling of a porcine oocyte membrane protein reflects reduced fertilizability of porcine oocytes following elevated ambient temperature. Reproduction in Domestic Animals.

Wu KL, and Berger T. 2007. Trichloroethylene metabolism in the rat ovary reduces oocyte fertilizability. Chemico-Biological Interactions 170:20-30

Ramesh R, Pearl CA, At-Taras E, Roser JF, Berger, T. 2007. Ontogeny of androgen and estrogen receptor expression in porcine testis: effect of reducing testicular estrogen synthesis. Animal Reproduction Science 102: 286-299.

Pearl, CA, At-Taras E, Berger T and Roser JF. 2007. Reduced endogenous estrogen delays epididymal development but has no effect on efferent duct morphology in boars. Reproduction 134: 593-604.

Pearl CA, Berger T, Roser, JF. 2007. Estrogen and Androgen Receptor Expression in Relation to Steroid Concentrations in the Adult Boar Epididymis. Domestic Animal Endocrinology 33:451-459.

At-Taras EE, Berger T, McCarthy MJ, Conley AJ, Nitta-Oda BS, and Roser JF. 2006. Reducing Estrogen Synthesis Increases Testis Size and Total Sperm Production in Developing Boars. Journal of Andrology 27:552-559.

McCarthy MJ, At-Taras EE, Pearl CA, Nitta-Oda BS, Roser JF, Conley AJ, and Berger T. 2006. Suppression of Endogenous Estrogen during Development Affects Porcine Epididymal Sperm Maturation. Molecular Reproduction and Development 73:1122-1128.

Corbin CJ, Hughes AL, Heffelfinger JR, Berger T, Waltzek TB, Roser JF, Santos TC, Miglino MA, Oliveira MF, Braga FC, Meirelles FV, Conley AJ. 2007. Evolution of suiform aromatases: ancestral duplication with conservation of tissue-specific expression in the collared peccary (Pecari tayassu) J Molecular Evololution doi: 10.1007/s00239-007-9021-0.