Roxane seems better now. Her weight is up to 0.72 kg, so
I guess the "restorative" food works -- or it's just that
she's eating as much as she should.
But she's still rather weak in the rear quarters. Not in the way they get when they get tumours, vitamin B deficiency and so on, it seems to be only the muscles in the legs. (But we'll work her out in order to giver her her fitness back.)