Dogs are pack animals and they have to know their place otherwise its chaos! Theyve been the only things below you and your partner in the pack for a long time and now your daughter is here and she is higher than them. They are probably confused and a bit jealous maybe. It sounds like they are just trying to adjust. Unfortunately its hard when theyve had run of the house and then this little being comes along and they dont anymore. We've had a similar issue; we have 3 small children and have just got a new puppy. She see's the boys as litter mates more than higher on the pecking order than her so we've had a few issues with nipping and such. We're having a hard time trying to make her understand that human children come before furry ones. It helps we have two kids that can talk so they are learning commands and teaching her who is boss by being dominant.

Have you thought about maybe consulting a dog trainer for some tips? Theyd be able to help you with some strategies.