As a wild animal, the breeding and trafficking of mountain rats is illegal, because protecting wild animals is an important environmental policy. Guangxi white-bellied mountain rats refer to a species of white-bellied golden pheasant (scientific name: Syrmaticus ellioti). They are national second-level protected animals, so they are illegally bred and sold in China.
If you want to know more about the breeding and protection of wild animals, you can consult the relevant wildlife protection organizations or local Forestry Department.