Cimicat and Royal Canin Babycat/Kitten milk should be sufficient. you could add a bit more water but to be honest would be best to have the vets have a peek at the kitten. sometimes the mum's reject them for a reason. may be something physically wrong with the kitten which might be causing the bowel problems. also the vet would be able to advise you more of alternatives to get the bowels going a bit more. hope this helps.