Hello Carlene,
Many vitamin or mineral deficiences can cause hairloss, e.g. copper, zinc, iodine, etc.
Best would be to give tablets containing everything the goats need, such as Kirkland tablets or similar tablets. They also contain copper, zinc, etc.
Always check the product description if they are the right tablets, because there are different kinds.
Please see :
http://www1.shopping.com/xPO-Kirklan...Tablets_K01090
Wim