Several animal protection organizations demand that North-America Government begin to monitor the population of tigers that live with private people and prohibit their reproduction, because in the end the new tigers are sacrificed so that their body parts are sold on market, especially in Asia.

Since 2000, Convention CITES (that protects endangered species of extinction) firmed a resolution that obliges the 174 countries that sign the convention to monitor each individual that lives in their territory. But United States, the country that has more tigers in captivity than the number of the animals in the wild in the world, do not sign CITES agreement.