Page "Borzoi" Paragraph 11

The more modern Psovaya Borzaya was founded on Stepnaya, Hortaya and the Ukrainian-Polish version of the old Hort.

There were also imports of Western sighthound breeds to add to the height and weight.

It was crossed as well with the Russian Laika specifically and singularly to add resistance against Northern cold and a longer and thicker coat than the Southern sighthounds were equipped with.