S.G.
So simple! I used goat's milk for my oldest 2 (who are now 8 and 3.5) and on a few occassions with my 2.5 month old.
My father in law is a biomedical nutritionist and he was the one who suggested the goat's milk rather than standard formula, when I was having difficulty breastfeeding.
You can actually buy powdered goat's milk in a can from health food stores (like Whole Foods). Just prepare as per the directions on the can. I find the powdered easier (to prepare and travel with) than the liquid.
Feel free to message me if you have any other questions regarding goat's milk. I am a HUGE advocate!!!