Hi and welcome to BPO! First off Angelina is very pretty and lucky to have you! She is what we call a "splash coat" meaning that she doesn't fit the normal Irish coat pattern in siberians, but rather has the large collar, and uneven break in the pattern along her chest. Welcome to the world of Siberians!! They are great dogs, but very challenging. Here's a couple of hints for you:
Don't EVER EVER let a siberian husky off leash. They were born to run and will take off and happily frolic several miles before realizing they have no idea where they are. They do not having the "homing" instinct that other dogs have and will NOT return home on their own. They also do not normally have a fear of strangers and so will go to the first one that calls them and happily follow them home.
Training is VERY VERY important with a sibe, they are an incredibly intelligent breed and require stimulation; but different then say, a golden retriever, GSD or border collie. Siberians have a catlike intelligent, they prefer to do everything to their own schedule. They quickly learn that if you throw a ball you WANT them to go and get it, but their philosophy is "You threw it... you go get it." So, while intellegent they are not the most "obedient" breed. Repetition on training is the key, and I HIGHLY recommend clicker training with sibes. Also, start now and work on recall training (teaching her to come to you when you call her, as well as an emergency word- I use "FISH!!!" which means if my dogs are out and heading down the road and about to get hit by a car I can yell that out (I ONLY ONLY use it in emergencies) and they know that IF they come RIGHT back they get a big big hunk of salmon. ) lead work, and make sure that you sibe-proof your backyard!! If you have a fenced in yard, make sure there are no small holes, places where she can climb or get under the fence, or areas low enough to jump; siberians are EXCELLENT escape artists and love the challenge of getting out of whatever you put them in!
As for food, Sibes love fishy foods, and the oil is very healthy and good for their coat. A high quality kibble is excellent, and if you can not find one that has fish in it (For instance, Innova, Solid Gold, Flint River etc) Pro Plan large breed puppy, Nutro foods (max and Ultra) and other similar foods are great choices, but add fish oil. I also like to give my dogs canned salmon as treats (but avoid fresh wild caught salmon because of the mercury)
If you are looking for something to help add weight, try Bil-jac moist (Find a dealer at their website) or Nutri-Cal paste to add to her food. Siberians are notoriously picky eaters. One of my girls eats one peice of kibble at a time, by lazily dragging it up the side of the bowl, flicking it in the air and catching it. Its a hoot, but super annoying on the morning before a show!! Now I mostly feed B.A.R.F (Biologically appropriate raw food) which consits of raw meat and bones suitable for their breed.
Siberians eagerly respond to high pitched noises- which helps in training because rarely are they exceptionally food motivated. But excited voice tones and high squeeks and squeels always get mine going; and on the trail it's how I keep my team motivated if someone starts lagging in the traces.
If someone hasn't mentioned this to you; be mindful of her around small pets. Even siberians raised with cats and small creatures can sometimes forget themselves and hurt a cat or something similar out of exhuberance. They have a VERY VERY high prey drive and love to chase anything that moves. I have two cat killers and I have to keep my eyes on them all the time, and NEVER are they around cats or small animals- and they were RAISED with cats. Also- my yard is perfectly squirrel, bird, rabbit and opposum free.
Anyway, I've probably "talked" your eyes out of your skull, good luck with her, and keep us posted with lots of pics!!!! And thanks for rescuing :O)