:wave: I have a moulting bunny atm Jingle my rex buck is moulting, he has no history of gut probs at all, I've experienced it in his lady partner Nessie however the last time he was moulting, through mutual grooming she was obviously ingesting too much of his fur and it's of a different consistency to his.
I did do a thread asking if mixed breed bunnies could be an issue as obviously there are differences in fur texture, length, density etc - my personal feeling is that it could be an issue, when he is moulting I brush him more often & space out their daily 'greens' fed wet into 5-6 tiny portions as opposed to 2 one in the morning and one at night. This is to ensure she is eating sufficient hay through the day not filling up on soft wet greens and then grooming.
I wouldn't recommend anything sweet like pineapple or papaya personally, I would stick to increasing fibre intake and hand feed the normal daily amount of greens into tiny amounts - as many portions possible through the day. If anything to encourage hay I would sprinkle a few burgess apple bits or a couple of fenugreek crunchies broken up onto hay.
I don't think there is a direct link personally, I think it's an unlucky combination of events that can occur in a moult - they are more tired, bit lazy and certainly in bunnies that aren't brushed properly or don't have nice tempting hay it doesn't take long for the fur to impact at the wall of the gut and problems occur.
It's definately something to watch and modify feeding and exercise and grooming accordingly though.:thumb: