However, kitten formula is still what their digestive systems can handle best. You can get them interested with a syringe. If they don't want to lap milk out of a shallow bowl, scruff the kitty and position its head and mouth right over the milk, tipping the head a bit upward so kitty doesn't breathe the milk up its nose. One kitten is going to get the technique and that will inspire the others.
If you're going to foster kittens, you should buy a large dog cage which you'll put on a card table. Felines love cages. This allows you to comfortably do feedings and get their litter box readily available. If a kitty leaves a poop outside the box, put it in the box. Pee outside the box can be absorbed on a bit of paper towel and put in the box. To keep the box as the sole source of potty smells, spray soiled areas with an enzyme (I use Fizzion tablets...don't clean with soap first). If you need to "seed" your litter box, you can stimulate their crotches with a warm soaked paper towel and they'll give you some pees and poops! I wrap the cage with a sheet to keep a/c off them, keep the litter inside, and keep my adult cats from passing along any germs they're harboring.
Your kitties are old enough to deworm. I buy 50% pyrantel for that. If they're overrun with fleas, they're old enough for the Capstar pill. They can't have a flea shampoo, but you can lightly spray a cat flea spray on them and rub it in. Get it into every nook and cranny... fleas will crawl into eyes, ears, butt holes for shelter!
What you're taking on is flat crucial to homeless cat population control!!! All the best to you all!
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