The best thing you can do for your kitten is to stop feeding dry food. Here’s more information of why cats should never eat dry food:
Note: I do not advise giving kittens whole milk, as many cats are allergic to it. As the kitten approaches six weeks old, the amount of KMR can be gradually reduced, until the kitten is eating canned food alone.
Living in a household with both a cat and a dog, you need to ensure that each animal only eats her own food. While free access to a large bowl of food is an easy solution to feeding your pooch, it may not be practical if your kitty is constantly snacking on his food. Feed your dog two meals during the day, following the daily calorie intake recommended by the pet food manufacturer. Monitor your dog during his feedings to ensure that your cat doesn't come over and steal some of the food. Because cats tend to eat as many as 12 to 20 times per day, free-feeding may work better for your kitty only, according to the National Research Council of the National Academies. Place your cat's bowl of food on a counter top, shelf or table that your dog can't reach so your dog won't eat it. After all, it's just as bad to give your dog cat food as it is to give your cat dog food.
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If possible, bring the mom and the kittens indoors isolated from your household pets. Provide a nice area for them with a bed, clean litter box, fresh water, and cat food. Kittens can be weaned when they begin eating solid foods at approximately 4-6 weeks old; offer them wet food mixed with water at 4 weeks. When the kittens are fully weaned from mom, the mom should be spayed, and then either adopted out or returned outside. The kittens should be fixed and adopted out around 8-10 weeks of age. Handle the kittens frequently after 5 weeks old to help with socialization. Consult a veterinarian immediately if the kittens or mom show any signs of illness, injury, or distress.If a kitten has an upper respiratory infection (a "cold"), they may lose their sense of smell. Cats need to be able to smell their food to eat well. If your kitten gets a cold (sneezing, runny nose,) see the vet right away. Kittens can die of simple colds that would barely affect an older cat. Also, keep the nose area clean and provide fresh food several times a day. Leave the family outside, and provide food, water, and shelter. The mother will likely move the kittens, do not worry. If she knows this is a safe place with a stable food source, she’ll return with them. If you are able to commit, the kittens should be taken away from their mom when they’re able to eat on their own (about 4-5 weeks old). When you bring them inside, handle them often to get them used to human socialization. The kittens should be fixed and adopted out around 8-10 weeks of age. If you cannot foster and socialize the kittens, leave the kittens outside! Don’t socialize a kitten that you cannot place; they will learn survival skills from their mother that will give them their best chance at outdoor survival as a feral cat.If the kitten needs more formula, increase the number of feedings rather than the amount at each meal. Too much food causes bloating, gas, regurgitation, and sometimes aspiration into the lungs. Diarrhea can be the result of a change in diet, too much formula, or an intestinal parasite. Green stool indicates an infection. We do not advocate medicating or treating animals for parasites (deworming or giving antibiotics) without a diagnosis and veterinary instruction. If you suspect an intestinal condition, seek veterinary attention. Kittens can become dehydrated or septic very quickly, and the condition can lead to death. Remember to clean their faces and rear ends after each feeding.