I HAVE A 9 WEEK OLD PUPPY HE IS DOING FINE, THE ONLY THING IS HE NIPS AND BITES WHEN YOU INTIALLY RUB HIM, AND HE CONSTANLTY NIPS AT THE KIDS I DONT SEE THEM DOING ANYTHING THEY SHOULD NOT BE DOING, IS THIS JUST A PHASE?
What breed is it? Where did you get him? How old was he when you got him?
Put a choke chain on him whenever you will be around, attach a short leash to the collar, as soon as he goes to nip correct him, say "NO" in a loud voice, if he continues to nip but him in his crate or a bathroom for a few mins, make him realise nipping = no more play.
Skip the choke chain. He's just playing and he shouldn't be choked for doing something that comes natural to him. You need to teach him how to play appropriately. As soon as he bites all play stops for a few minutes. Keep it up and he will learn that is not how people play and if he does he can't play. I would also get him started in an obedience class with a positive trainer if you haven't already. Heís going to be fairly large pretty quick donít let him do anything now that you wonít want him doing when heís full grown.
I dont suggest a choke chain for a 9 week old pup either. This is normal puppy behavior. Use the other suggestions to curb the biting.
Yes, the neutering WILL help with the issues everyone has mentioned. WHY should YOu do it? Not to be rude here, but it appears by the basic question you asked originally, your not an experienced puppy owner. granted that is not a bad thing, everyone has to own their 'first' sometime. Rotts are not a beginner breed. They should have an experienced knowledgeable person to raise and train them in order for them to mature with the proper attitude. If simple 'puppy biting' is new or is unknown and how to deal with it, I would think it is better for him to be neutered. It will curb alot of issues that are possible and may further prohibit an unexperienced person from being able to handle this puppy who will one day be a much bigger, much stronger dog.
I would just like to add that I strongly agree also that if you are not planning on breeding that i would get him fixed. It truly does reduce the risk of cancer! I lost a dog that i got when she was 4 to breast cancer. She was not neutered nor did i know that it would have reduced the risk of cancer. It is a terrible thing to see a loving family member suffer and die because you could have done something about it!