I've been looking into getting copper to dose my goats because I know they need it. But I'm confused on how to dose them. I've read that you can kill them from giving too much so that's why I have been putting it off. I have goats of all ages and weights. So I'm wondering if it would be better to buy the kind that you have to fill the capsule yourself to dose correctly by weight ....??? What is the correct dosage? I've read different things some say 1 g per 20 lbs and another says 1g per 33 lbs. very confused. My grown goats weigh between 45-80 lbs would it be safe to by the pre filled capsules and give all a 4 g capsule each or would that be too much for a 45lb goat??