Quote: Christine Cole

..... Is seperating the dogs competely necessary? .... When they are together (except for this morning) they play together very well.

Yes. What has changed since this morning when your puppy was injured? For now, I would absolutely separate them except when you are right there with them.

 Quote: christine cole

.....How much "Organized Training" a day is enough?

As you mentioned, it's really all day, all the time.... but actual sessions of basic ob work best if you can do short (three to five minutes, say) frequent sessions, several every day. I like to begin and end on a high note, with a command you know the dog knows and can praise/reward for.

I would absolutely get this video right away:
http://www.leerburg.com/302.htm

It's not just Basic Ob; it's also lots of info about living with your dogs. Worth watching several times, IMO.

1. The dog was not "wrong" in what she was doing.
2. The dog did not understand that this is "unaceptable behavior" and she definately didn't "know what you were saying".
3. She didn't "apologize" to anyone, certainly not the puppy.

From your post, you sound like you are in way over your head with two dogs in your house. Your older dog has dominance aggression that ***may** one day be directed towards your children should they decide to challenge her. She has already challenged you with toys and that is not good at all. The reason she hasn't shown aggression to your children is because they are small, and she doesn't think they are a threat yet, but that will change as the kids grow up. By overcompensation with affection when you took in the new puppy, you made matters worse, heightening her status in her eyes. Dominant dogs correct by biting, thats why your dog didn't make any mistake. She did what she thought she had to do to keep the puppy in line.

If I were you I would rehome your puppy and hire a reputable trainer to work with you and Piper. If that is not an option for your family, you have to buy 2 crates and crate each dog and only let one out at a time. No more toys. Each dog has their own food/water bowl, and you enforce their usage STRICTLY. Your older dog should not have to share food or water with the new puppy ever. They should be fed and watered seperately and your kids should be no where near the older dog when she is eating. Most importantly, you have to implement dominance building techniques with your older dog to establish who is boss, and use them on your puppy too, or else you will end up with 2 biters. There are extensive webpages on this site as well as DVDs you should buy to help you get started.
Dogs don't understand love and affection as humans do. Dogs like strong leadership, structure, and exercise. Affection like petting should be earned, not given away freely.
Good luck,
Michelle

Christine, an online acquaintance of mine has 2 mature Akitas (neutered male & spayed female) who have had several horrific fights with each other costing MANY hundreds of dollars in vet bills every time & more than one trip to the ER for herself as well -- The woman & her husband have since taken Ed Frawley's advice very seriously & now live with these Akitas separated 24/7, even though both dogs whine for one another's company & actually lick each other through various barriers...

The point is that, what dogs do while apart can change to exactly the opposite behavior in one nano-second if they get together again -- Perhaps nothing would happen, but maybe the next fight would be fatal for one or both animals & also result in terrible injuries to the owner, so they decided the risk just wasn't worth it <:-(