1. Department of Animal and Dairy Sciences , University of Wisconsin-Madison, Madison, WI, USA
2. Endocrinology and Reproductive Physiology Program , University of Wisconsin-Madison, Madison, WI, USA
3. Eutheria Foundation , Cross Plains, WI, USA
4. Department of Pathobiological Sciences , School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
5. Department of Veterinary Medicine , Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil