I had a bag of dried kelp left over from last year that my cows turned their noses up at, so I tried it on the sheep I got this year. At first I mixed it with minerals and they liked it. But when I offered it free choice they went nuts over it. They act like it's a delicious feed all by itself. I started feeding it free choice a couple of weeks before our first live lamb was born- and he was quite vigorous and healthy. Should I assume the selenium levels in kelp helped avert white muscle disease? I don't know if our part of Missouri is selenium deficient or not, but our first ewe gave birth to dead preemie twins before I gave the kelp free choice, and the second ewe gave birth to a full term healthy ram lamb after eating kelp for a couple of weeks. We are far from any ocean, so bringing in kelp is rather expensive. Does anyone have any idea if it's really necessary or not? I'm assuming it's providing something they are lacking since they gobble it up so well- but am I doing overkill on the vitamins and minerals? My cows didn't like the stuff. The sheep do. It's weird.