hiya,
first thing, i wouldnt advise to breed from her at all - even if she recovers, as she has prooved ill health, dissapointing but its just not worth it.
my chin doe did not pull thorugh and actually died before i got a chance to cull her which is what i had decided to do, i have seen this within my chinchilla lines and anything sub bred from my chinchilla lines, i wouldnt say it is a chinchilla thing more a strain thing, that has gotten into a particular strain, and perhaps our chinchillas came from the same strain as theres not that many different strains around i believe?
im not sure tho, these things sometimes just happen and the only thing you can do to make sure it doesnt happen again is to quarenteen, (cull if a breeder who does so) and definately NOT breed from them.
i'm wondering if it is sex linked as i have seen about 90% of this happening in does over bucks, which is unusual as sex linked illness is usually seen in males. so im wondering if its something that males carry and females exhibit, which makes it rather annoying if your male seems fine but you breed it into females.... perhaps its as males typically have one X chromosome and one Y chromosome where as females have have two X chromosomes. so perhaps its linked to the X chromosome and only shown when it double occurs?
just a thought
either way, im giving up with this particular strain and concentrating on a variety that have prooved healhier to breed, its difficult to do so as my chin buck is the healthiest most strapping lad, but when bred with various healthy feamles who go on to proove their own health but the chin litters of these become un-healhty, i can't have that.
another thing to note, is altho this thin-hunched-lumpy-diareah thing has occured when at weaning age for a few babies, others are fit and healhty until 12 weeks (typically breeding age) when i have seen their healhty go rapidly down hill
any other experienced thoughts on this would be welcome, this is quite a ramble!!