Most effected is the Siberian tiger. Some parts of the bodies of these largest cats are said to be wonder cures of the traditional Chinese medicine, for which high amounts are paid. Several years ago 500 Siberian tigers were estimated to live in the wild. This figure was alarming. It's just a question of time that these last Siberian tigers in the wild are killed by poachers.
Zoos try to keep a self-preserving population in captivity.
Breeding Tigers is quite easy. So reproduction has to be controlled by contraceptives. There are about 5000 Siberian tigers living in zoos. The long-term goal has to be the reestablishment of conditions in their natural distribution range that allow the Tigers to survive. But this seems to be far-off at the moment.