Author's Organization:Nippon Institute for Biological Science Nippon Institute for Biological Science Nippon Institute for Biological Science Nippon Institute for Biological Science Nippon Institute for Biological Science Nippon Institute for Biological Science Wadayama Livestock Hygiene Service Center
Published: April 15, 1991Received: June 26, 1990Available on J-STAGE: February 15, 2008Accepted: November 30, 1990
Advance online publication: -
Revised: -