Normally, a mother cat will produce milk within one to two days after giving birth. Of course, this varies from kitten to kitten, depending on the mother cat's health. If you find that your kitten hasn't produced milk after two days, it's best to consult a veterinarian promptly.

Once the mother cat has milk, feed her kittens promptly. Generally, the mother cat's milk will stop around one and a half months old. At this time, you can soak cat food in milk powder and feed it to the kittens. When the kittens are a little older, they can eat cat food directly. To ensure the kittens' growth and development, you can also add some treats, nutritional supplements, probiotics, etc.