We had kittens that had to be syringe feed through a tube because mama had no milk. The vet provided the tube and syringe and told us how far to insert the tube to get it in their stomach. We used kitten formula. I'm sure you can use goat milk but not sure what other alternatives exist. Also you may have to stimulate them to potty if the mom doesn't. I always used a moist paper towel and wiped gently until they went.