When can my dog feed her puppies after surviving an antifreeze poisoning

Niki, hang tight (love the name by the way, my daughters' name is Niki)
I don't know the answer to this but I will surely do some research and see what I can find.
In the meantime hopefully someone else can offer some advice.

Niki, it's really best to talk to your vet about this. Seeing as he's likely the vet that treated your dog he can give you a better idea about how she's doing, and when she'll be allowed to resume nursing her pups.

In the meantime follow his directions for feeding exactly. This is really one of those cases where only a vet can tell you how to proceed.

Good luck.

Alty is exactly right, call and speak with the vet who treated your dog. I did do some looking around but I'm afraid the answer to your particular question would take forever, so I didn't continue.
Your dog has already beaten the odds by surviving. And lucky her, you caught it in time.
Depending on the time frame you may not want to tax her system any further.
Follow the advice Alty has already given and best of luck.