The zoo had two Snow leopard at the time:
Prafula (M)
Born at Chicago Zoo 03/06/1988
Arrived at Taronga Zoo 14/09/1990
Sent to Mogo Zoo 11/0/2003
Omaha (F)
Born at Omaha Zoo 12/07/1989
Arrived at Taronga Zoo 16/09/1990
Sent to Mogo Zoo 11/0/2003
Due to Omaha's young age, she was put on contraception when first introduced to the male. She was administered too higher dosage and it rendered her infertile. They were retired to Mogo Zoo in 2003; and a new pair was imported (that successfully bred in 2005).
@Zoofan15 As I recall, they had two similar enclosures next to each other and the Snow Leopards were being housed separately. I have a feeling this photo is of the female, but I can't be sure.