hi Sandy. im sorry that i didnt reply to this post sooner...i just noticed it.
as far as Alex's condition, you can refer to my update post further up the thread list. in short, he has hip dysplasia. doesnt seem that ricketts is a factor. so i wouldnt think that vitamin deficency was a cause for concern. luckily, the prognosis is good, although i do have to keep an eye on his condition to determine when corrective surgery will be needed.
actually, his problems were always there, its just that the hip dysplasia has become very evident lately with the rapid weight gain he has been going through. his weight is still good for a kitten his age, but it is considerably more than hes ever had to carry. for instance, he went from 3 lbs 7 oz. to 4 lbs 14oz in a matter of three weeks. so the weight gain has been very quick.
however, i hadnt given him kitten formula in the past. i am a first time cat owner, and as i understood it from other cat owners, 6 weeks was the point at which the kitten can be weaned from the mother. perhaps i was misinformed? with that info, i didnt attempt to bottle feed him. i simply gave him some easily digestable food (because his digestive system was already a mess), which he was more than willing to scarf down. an emergency visit to the vet the day after i found him revealed more problems, but bottle feeding was never suggested by any of the 4 vets he saw in the first 2 weeks we had him. they were aware of his diet, and i suppose they felt that everything was ok with his diet at that point.
but now, at about 4 1/2 months old, he is in great health, with the obvious exception of his hip dysplasia. thank you for the concern. hopefully nothing else will pop up for awhile.