At first, Asuka appeared to be in poor health. She was listless, hardly ate, and moody. However, she was the quickest of her pod-mates to adjust to captivity, and within months was learning husbandry training, eating, and interacting with Yamato and trainers. Within a year, she was also performing.
Yamato and Asuka appeared to get along very well, playing, resting, mating, and performing together. Sadly, Yamato passed away in November of 2000, after a long illness, during which he and Asuka had been separated.
Since Yamato's death, little info has been received about Asuka. We know that she is performing and eating well, but nothing other than that.