| Answer | Crossword Clue |
|---|---|
| stirpicultures | STIRPICULTURE, selective breeding |
| stirpiculture | selective breeding |
| STUDFARM | Selective breeding site |
| STUDFARM | Site for selective horse breeding |
| eugenics | the genetic improvement of a race by selective breeding |
| liniest | strain produced and maintained especially by selective breeding or biological culture |
| eugenic | pertaining to eugenics (the genetic improvement of a race by selective breeding) |
| tarpan | small, dun-colored wild horse chiefly of southern Russia, having a flowing mane and tail: extinct since the early 20th century but somewhat restored by selective breeding of mixed-breed domestic horses, and sustained in zoos |
