The centre said it had released 357 animals and 40kg of snakes in the Phong Nha - Ke Bang National Park, the Cuc Phuong National Park and Huong Son special-use forest in My Duc, Hanoi.
The centre also protects rare, endangered and critically endangered wildlife species such as the big-headed turtle, white-naped crane, great hornbill, Indochinese tiger, and Tibetan bear.
The centre is now caring for 398 animals and 35.2kg of snakes./.