Just another update. Everyone is still getting the b vitamin water each day but I'm not sure if its doing anything, however on the basis that it might be helping ( its certainly doing no visible harm) and also given how expensive the pills were I shall continue. Unfortunately of the first 3 only one has come right so to speak. he/ she still walks funny, with his/her legs more wide set than the others but it seems happy enough and is up and walking. The other one that I was also treating of the original 3 had to be culled as its hocks were starting to twist and such like the first one. Although it was looking better for a few days it too succumbed to whatever it is and so its suffering was ended. Interestingly it seems to be very fast in crippling the birds as one day they are walking fine, moving with the rest doing chick things and the next they are lame and their feet go funny and they cannot walk. By day 3 their legs are so twisted its awful and they seem to be paralyzed although there is still blood flow.
I did wonder if there was a genetic component, and I guess there could be on the helix strand somewhere however all of these chicks that are effected have different parents and genes. The first one had non related parents, the second and third ( the only survivor so far) had different unrelated mothers but the same father who was unrelated to the mother.