All are nursing and all meow.
A mother cat nursing her kittens is often referred to as a "queen."
a queen
I have never heard of a product like this - most veterinarians will tell clients with orphaned litters of kittens to settle in for hand nursing and bottle nursing the kittens individually. It is an interesting concept though, so if you are interested in developing one I suggest going for it - it would be a major help to rescue organizations and shelter groups.
it is called a 'Queen'
I believe the correct term for a pregnant or nursing cat is a 'queen'.
No, the kittens need all the milk they can get. Just feed her better food and help her not be so thin. You can help by nursing the kittens yourself as well at intervals if they are still hungry, but the kittens should NOT be separated from their mother, especially when you can help them.
Cats nurse kittens until the kittens are about four or five weeks old. At this age, kittens begin to wean and are able to eat soft kitten food. The mother cat's teets will dry and retract slightly. The only true way to tell if a cat is still nursing kittens is through observation.
No
Yes. There have been a lot of stories about dogs nursing kittens and Cats nursing puppies. I think it's the mother instinct that works in here.
Check with your vet before giving your cat any medications, especially if it is nursing. Medications can pass through the cats milk and harm the kittens.
Kittens should stay with their mother until at least 10 weeks, and continue nursing throughout this time. Kittens should usually stay nursing for 12 weeks, but the kittens' mother will normally stop them nursing when the time is right.