I found it a little odd that they did not bring in a bull with this importation even if they had to bring in one less female it still would in my view be better than no Sumatran bull in the region’s zoos at all. If they had imported Thai/Indian sub species would have been a different matter as there are a number of bulls within the region they could of used.
I believe the Sumatran subspecies was imported over the Indian subspecies because of Terri’s links with Indonesia.
Going forward, Australia Zoo need to weigh the likelihood of importing a Sumatran bull against whether they want to cut their losses and breed the elder two cows with a Indian bull through AI (while there’s still time).
Considering we don’t manage Asian elephant at the subspecies level, hybrid calves would still be valuable and allow the region the option of breeding the elder two cows into the future.
If a Sumatran bull is on the horizon and they want to reserve the space for purebred Sumatran calves, then fair enough; but otherwise they’re letting two genetically valuable cows lapse into reproductively unviable animals that will be taking up space in the breeding programme for the next few decades.