My advice as a dog owner and someone who works closely with dogs and other species on a daily basis is to NOT introduce her to the chicks. In fact, teach her to stay AWAY from the chicks. No eye contact, no sniffing, no approaching within x feet of them. Dogs are predators, chickens are prey. Just because some people get lucky that their dogs lack a strong enough predatory instinct to kill their birds doesn't mean that it's what happens most of the time. And a one year old dog, particularly one of a large, slowly maturing breed, has little to no impulse control, so even if they could mature and get over their urge to chase/kill chickens you can't expect it until after they have mentally matured. The safest bet for everyone is to keep the dog and chickens physically separated and teach the dog to avoid the chickens (even when they are behind a fence) and supervise each and every second when there is a chance that one could cross the physical barrier and come into direct contact with the other.