Over the decades, this practice harmed the local population. The introduction of new breeds to the region led to crossbreeding. Eventually, purebred dogs only remained with herders, breed enthusiasts and farms, with a surfeit of crosses elsewhere. However, the Central Asian Shepherd Dog population is still stable in general, reproducing some true quality dogs praised for working abilities, regardless of country of origin. Trading bloodlines and purchasing unrelated breeding stock between Russia, other 'former USSR republics'