Affiliation: | 1. Laboratory of Animal Breeding and Reproduction, Graduate School of Agricultural and Life Sciences, The University of Tokyo, , Tokyo, Japan;2. Laboratory of Reproductive Endocrinology, Graduate School of Natural Science and Technology, Okayama University, , Okayama, Japan;3. Zen‐noh Embryo Transfer Center, Kamishihoro, , Hokkaido, Japan;4. Department of Animal Science, University of Tennessee, , Knoxville, Tennessee |