Author's Organization:Department of Reproduction, Nippon Veterinary and Zootechnical College Department of Reproduction, Nippon Veterinary and Zootechnical College Department of Reproduction, Nippon Veterinary and Zootechnical College Department of Radiology, Nippon Veterinary and Zootechnical College
Published: December 15, 1990Received: March 13, 1990Available on J-STAGE: February 14, 2008Accepted: July 05, 1990
Advance online publication: -
Revised: -