Resume. Volume 17 start the practice of our editions with the release of the series "twice a year" (semi-annual). The volume and all articles in it will get DOI, each article has home page, all articles have English extended summary, table names, captures to figures and bibliography. Estimated size of issue is 18 articles on 168 pages. Preparation of the volume is scheduled for mid-2019, until the start of the 26th Annual Theriological School-Seminar.