Huskies play rough. It often looks and sounds like they are killing each other. I have 23 of them. My husband always says if there's no blood, they are playing. If she meant to hurt the puppy, she would have!

She may well have been telling the pup that she is the boss dog. The first time Muskwa met Earle(Muskwa was 2, Earle was 8 weeks), Muskwa grabbed Earle by the throat, flipped him and held him there. It wasn't aggression, Earle wasn't hurt, Muskwa was just making sure Earle knew who the boss dog was.

Most huskies are good with other dogs. She likely just needs some to adjust to the new addition. You likely don't have to worry about same sex aggression until the puppy starts to mature. Get her spayed asap(the husky too if she's not already). You'll have fewer problems if they are both altered.