this recent article says 200 Baht. Numerous sites say it is open 24 hours. Pata Zoo update - November 2016
it seemed strange to me - basically it would mean that the animals are in permanently-lit enclosures. But it is a department store, so perhaps it really is open 24/7.
How did the zoo get all those rare species?The only gorilla in thailand,and linsang and ferret badger etc.
they bought the gorilla. The linsang and ferret-badger and other native species they probably also bought locally.
I paid 200 Baht last year. I think opening hours are much more limited than that but can't find my notes on the department's store's opening hours.
Fire at Pata Zoo - no animals lost : Official Says ‘No Animals Harmed’ In Fire at Controversial Zoo (Photos)