Emma was hand-reared because Esther could not produce enough milk.
Yes, I thought there was one other handraied one apart from 'Rosie' Emma was also very small at birth if I remember. Whether handraising had any bearing on the fact that she never bred either, I don't know. I believe a keeper told me that the reason of her death was stress after a 'mating' session at Chester- she apparently collapsd and died very suddenly soon after.