Baby monkeys are weaned 3 ~ 4 months after birth. Weaned young monkeys are kept in cages, and four young monkeys are kept in cages to keep warm. Milk was mainly fed for two weeks before weaning, and porridge paste was gradually increased in the last week.

Weaning means that the newborn of mammals develops at the initial stage after being breastfed by their mothers, but after a stage, they stop sucking milk and take in other nutrients.