Why are some of Qianlong’s cats some raccoons and some slaves?

Nobles are keen on keeping pets. Emperor Qianlong had a cat named "Mao", some were raccoons and some were slaves. During the Qianlong period, nobles were keen on keeping pets, but the economic status of the noble families was uneven. Some families were rich and some were poor. Therefore, some cats during the Qianlong period were raccoons and some were slaves. This is also related to the socio-economic stratification during the Qianlong period. The difference in wealth among the nobles was also reflected in the types of pets.