[IceWish]

Hi , ive read through all the great articles on dominance and puppy behavior. I just have a few ques.
Ive never owned a Rott before , i got a 3 1/2 month old pup about a week ago.He was a little under weight because he had parvo a few weeks before.I took him to the vet and i was told that he had a slight infection in his kidneys and a his eyes were a bit cloudy.
He is feeling much better now, much more energetic , i feed him 3 times a day and would play with him for about an hour each time.He doesnt have a big biting problem, i never let him bite my hands , i would always say no.Yest i noticed that he was jumping along side my nephiew who is 4yrs. and he bit his t shirt. I really do not want that type of behavior with the kids so i got up and said no in a loud voice and (im not sure i should have done this) i held him just below the neck , he kinda fell over so i held him on the ground while striggling a little, until he was calm then i released him, after that he was not playful for a while , just a little quiet.What should I have done in this situation?

He likes to bite the plants and i would say "no" and remove him, sometimes he would growl and fight a little to bite the plants. I never had a large breed dog, he seems pretty big for a puppy and when he growled and lunged for the plants i removed my hands instinctively, then grabbed him soon after and gave him one of his toys....i only had him a week and i guess i thought he would bite....(even though hes just getting his little teeth).What is the correct way to teach him that he should not do this?
He is so strong ...... when walking him back to kennel he always struggles to run faster, i struggle to keep him by my side or behind me. Sometimes i stop to calm him but he is always pulling and i have to apply tension on the leash to keep him there. How do i handle this situation?

one more question. If i have to hold him to calm him down. How long should i hold him for? what should i do if he starts to growl or struggle?i only had him a week, would he try to bite me? :)
Can you please tell me all the diffrent (and correct) ways to discipline a puppy I would really appreciat it.

Thank you.