Our dog, Penuche, is 1/4 Anatolian Shepard 1/4 Pyrenees and 1/2 Burmese Mtn. Dog. I absolutely love her. But this is after a considerable portion of her her life I spent really regretting adding her to the family. When you have livestock, adding a young dog to the mix is ALWAYS a precarious and tedious time. No matter the breed. Even dogs that are specifically bred(as the bloodlines Penuche hails from are) to protect and manage livestock still have the hunting instinct. I think that there are people and dogs who get very lucky and don't have a hard time with that, but the majority of the time there are going to be losses which, on the postitive side, can be viewed a learning opportunities.
We got Penuche when she was 12 weeks old, from a farm where she had been exclusively raised with goats... Minimal interaction with her human caretakers. We had hoped that the early interaction with livestock would translate into other species... It didn't. For a VERY LONG TIME she was an off and on chicken killer. Tying(which I promised myself I would never do) became our heartbreaking way of managing that for a long time... It was our only option. Letting hr off for any period of time ended up with multiple dead chickens. A borrowed shock collar cured her. Sounds nasty, but at that point it was a kill her or cure her situation. Ever since she has been an exemplary character. She even goes so far as to monitor other dogs that enter the space. Anybody goes after a chicken and she sees that as her license to discipline.
I would highly recommend, even if you already have a dog picked out, that you look at a dog bred to be a livestock dog. Even with Penuche's ugliest moments, she has turned out to be a great help with the animals... I know diddly about dog training, and she has naturally began to help herb cows and pigs of her own volition. Once she knew her parameters, the chickens are absolutely safe around her... I never have to worry about their safety. Growing up on a farm with parents that raised several breeds of dogs over the years and having lots of different breeds as pets, I've had first hand experience with livestock and dogs... From tiny to huge... Breeding does make a difference. It is very hard to defeat the instincts they are bred for. Mixing breeds makes it harder. Penuche is pure stock dog blood, but I think her mixed breeds made it harder in the end for her to pick up the idea. My mom has Great Pyrenees and they had their puppy glitches, but the rate at which they caught on and became useful farm dogs was so much faster I am a big fan of Pyrenees... They are so loyal, both to their family of critters and their family of humans. My mom's dog Goober herds the grandchildren. *haha*
Penuche is now a confirmed free-gal. The neighbors know her and love her. She can go anywhere though she chooses to stay home these days(had a bout before she was fixed), but she keeps the neighbor dogs away. In fact, if I say "get 'em" she gets 'em, by golly! If we leave, she is always sitting at the edge of the drive or in the yard waiting for us. It's the stock-dog mentality... Stay with the herd and in the herd's territory. She is an excellent guard dog... There is no doubt in my mind that she would fight to the death to save me or the babies. I just love her these days... I couldn't imagine the farm without her.
I hate to be all "poo poo" about the dog you already have picked out, but if you want to keep poultry(the easiest target, and just as loveable and easy to become attached too as a cow or goat) you really don't want a dog that is bred to hunt. It really is a bad idea, no matter how much you think she is a great pup. Trust me... It is hard to pick up a dead chicken with a name that you held in your hand as a chick, and then look at the dog you love and hate him/her for killing it. Then what do you do? It is very hard to break them of that killing thrill once they've done it once, and NONE of the methods to do so are easy or humane... This from a person who struggled with each and everything we tried to do to save a dog most other farmers would have axed the first time she killed something. It's heart breaking. And they CAN be reformed, but it's just not pretty. I'm not trying to be a kill-joy... Just realistic. That being said... If you do stay with the current pick, make sure she never has the opportunity to kill something. That is really the only cure. No free range birds, no access to very young livestock. Let her learn that a chicken is part of the family through the fence. When she is well out of the puppy stage and every ounce of curiosity is satisfied and you know for certain how far you can trust her(and that is close to two years with most dogs, sometimes longer) only then would I think about letting her loose with the critters. I understand completely the merits of raising a dog WITH the critters, but that is for stock dogs... Hundreds of years of breeding to get to that point. Best of luck.