In which economic region is antler reindeer breeding developed?

The antlers themselves are deer antlers. They dump them themselves from time to time, but sometimes a person cuts them off. It turns out that they have very useful medical components. Whole farms were built to breed deer. Kazakhstan, China, New Zealand are very successful in the development of antler reindeer husbandry. In our country, in the Soviet years, the Irkutsk region, Altai, Khabarovsk and Primorsky territories were singled out in this matter. Then we were in the top three in terms of the number of these animals.