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*Akinori Mitsui
United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology Laboratory of Animal Breeding and Reproduction, Faculty of Agriculture, Utsunomiya University
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Nozomi Inoue
Laboratory of Animal Breeding and Reproduction, Faculty of Agriculture, Utsunomiya University
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Midori Yoshizawa
United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology Laboratory of Animal Breeding and Reproduction, Faculty of Agriculture, Utsunomiya University