I have 6 week old kittens that are not interested in food. So far I have tried just mushing up kitten food, Blending food with water/milk, and just kitten milk on its own. I have put some on their mouths for them to lick off and then directed them to the bowl, I have put some in their mouths and I have even dipped their feet in. They are not interested at all and I dont know what else to try. The poor mother cat is walking around with kittens dangling off her nipples.