Try to give him KMR (kitten milk replacer) rather than cow's milk. The mother cat starts to wean her young from about 4 weeks of age, so keep going with the KMR for another week or so. First make sure he can drink KMR from a bowl rather than a syringe, and then add some KMR to canned kitten food to make a thick gruel or soup. As the kitten learns to drink this, gradually thicken it up by reducing the amount of KMR.

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