Yorkie, I would be very, very careful what I fed Peanut. She is not just skinny, she is starved - and feeding too much can be just as bad as not feeding enough in her case. I would stick to good grass hay, a little tiny bit of grain, and forget the high powered stuff until she starts to come out of being starved. Too much, too fast can cause bloat, acidosis, and an inability of her system to adjust to her feed - all of which can kill her.