Author's Organization:Department of Theriogenology, Faculty of Veterinary Medicine Hokkaido University Department of Theriogenology, Faculty of Veterinary Medicine Hokkaido University Department of Theriogenology, Faculty of Veterinary Medicine Hokkaido University
Published: February 15, 1987Received: August 08, 1986Available on J-STAGE: February 13, 2008Accepted: November 20, 1986
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Revised: -