I don't know if its to late to do this, but when i was a lad and had goats my father and his father shared some information with me. I'm 68 now so i guess it's been a little while now. As my goats would get ready to kid, my dad said to feed them rye grain. And it would help with delivery, needless to sag my kids come flying out. Last kidding didn't have rye grain but had rye flour so fed it to the doe a couple of days before and they still flew out its an old farmers trick but seems to work.