Was wondering any tips for keeping kits alive I'm supplementing with BOSS and free feeding pellets and hay is there anything else I can do to boost milk production?
Just give her lots of every kind of food, including hay and whatever she's used to, she'll pick what she needs. 10 is ok, depending on size it's a large litter, but not necessarily a very large one. She'll be ok, just enjoy feeding her whatever she wants, she's not going to get fat while she nurses.
I don't give much at %s, since I use pellets just as a supplement to fresh forage and hay, a mouthful more of lower % gives the same nutrition..