Singapore Zoo Proboscis Monkey breeding

[EmperorTamarin]

I was doing some research about proboscis monkeys and it came to my attention that Singapore Zoo houses a lot of proboscis monkeys. What is the situation with proboscis monkey breeding in Singapore? How many animals are born annually? Do they generally survive, and when they do, are they released back into the wild? Because I don't think the zoo has unlimited space in their enclosures. Can somebody help answering these questions?

Thanks in advance,
Nils

 

[Zooish]

I was doing some research about proboscis monkeys and it came to my attention that Singapore Zoo houses a lot of proboscis monkeys. What is the situation with proboscis monkey breeding in Singapore? How many animals are born annually? Do they generally survive, and when they do, are they released back into the wild? Because I don't think the zoo has unlimited space in their enclosures. Can somebody help answering these questions?

Thanks in advance,
Nils

By my guesstimate 1 or 2 are born annually, more males than females. Most of the babies survived. 5 or 6 (can't recall exactly) of the captive born males have been sent to Apenheul in the Netherlands. None have been released in the wild.