The other 4 which has been caught back are doing well and keepers are keeping a close eye on their health.
Meanwhile, the search continues for the last of the missing deer.
Searchers have stopped sending out big teams as their presence may push the animal further into the forest.
Instead, they are setting up feeding stations with the deer's favourite food, such as grass and fruit, to try to lure it back into a temporary enclosure in the forest.
Mr Kumar Pillai, Director of Zoology, Night Safari, said: "We think the deer could have moved into the forest reserve. What we have done is inform our counterparts in NParks and we have also given them a description of the deer and its ID number."
Search efforts have been hampered by the wet weather over the weekend, the danger of poachers or even another deer from the wild.
Mr Pillai said: "My biggest concern is that if any humans out there would try and catch this animal because this animal is quite used to human beings. I hope nobody will set up traps and snares to try and catch this deer.
"If she gets to pair up with a male, then I don't think she's going to come back to our park. I'll just say she has just introduced some new genes into the wild population."
Thus i feel that it is good that they had recovered 5 of the 6 years and i hope that they will recover the last one and I hope that nothing like this will every happen again.
