A kitten that is about 3 or 4 weeks old should be fed every 3 or 4 hours. You should feed the kittens as much as they can drink, the more the better. Also, you should try to get kitten formula. If you were feeding a goat well then goat’s milk would be perfect. Are you stimulating the kittens to use the bathroom after you are done feeding them? Where are your babies? They should be kept in a safe, warm spot with if you have one, a heating pad. A kitten that is 4 weeks and older can be offered soft food but bottle feeing may be necessary as well. Good luck with your babies!