How should I introduce my dog to a new puppy?

I have a crazy hyper-active 9 month old GSD and I am getting a Saint Bernard in a week. What tips do you have for a successful merge with these two dogs? I dont know how the puppy's temperment is but my dog just loves everything and goes crazy for everyone. She's like a tornado with a fur coat. But she has never been aggressive.

Simply arrange a get together.

GSD crazy hyper active. The dog needs proper training and handling.Put that with a St Bernard and you will have a St Bernard who is crazy hyper active.Good luck

Take your current dog for a long walk to drain her energy, let the dogs meet away from your home (on neutral ground) and then once they seem comfortable with each other bring them both back to your house, after walking together both dogs will feel more like a pack and accept the change more easily.Wish you luck! =D

you could put the new dog on a leash and introduce it to the other dog. You could take them on a walk together.

Don´t make a big deal about getting the puppy. If you don´t, your dog won´t either.That is, assuming it is your dog and not the other way around. Try to get your current dog under control, and if you can, ask the current owner of the Saint Bernard to keep the dog for a little longer until you have your current puppy under control.How often do you walk your dog? It definitely isn´t getting enough exercise if it is acting hyper and "loves" everything. If the dog does not stop when you tell it to, you need to get a trainer, or at least some dog training books.If it is acting this way when it meets the puppy, there are three possibilities:1. Either the other one will start acting the same (as stated above)2. The other one will feel intimidated. It could snap at the GSD out of self defence.3. It will be irritated, and, since you aren´t taking control, the dog will do it for you. This means aggression. (Yes, puppies can be aggressive!)Regardless, definitely take them for a walk before having both of them in your house. Walk them for as long as necessary until both of them have calmed down and are walking with their ears to their sides, not forward, but also not completely down. The tails shouldn´t be raised. There are some breeds where a raised tail is natural, but these breeds have their tails naturally down (not between their legs, don´t get me wrong). If the tail is higher than their back, that means there is something wrong- it could be aggression, it could also be something else, but definitely not relaxed.

Exercising both the nine month old GSD and the new puppy is key in having a relaxed relationship between the two dogs. It is important that the dogs are properly excercised and relaxed before starting a training session to redirect any hyper activity. Allow the GSD to sniff the puppy and praise him when he does good. Use treats to reward the GSD when given a command to stop a hyper jaunt towards the puppy. The GSD will get it that certain play tactics with the new puppy are not aceeptable. Always supervise the dogs during playtime and it is advisable to crate the puppy after it has been exercised so that it may rest while inside the crate. Do not crate the puppy for long periods at a time.

you have a non-aggressive dog in your house, and your getting a puppy? I love this part! Just plop the pup down on the floor and say "hey dog, meet your new little sister!"keep a close eye on 'em though...an adult dog knows a puppy is a puppy and adjusts the level of its play to avoid injuring it. Your 9 mo. GSD isn't all that mature yet.