My lovely milk chocolate brown Nigerian doe started shedding about a week ago, she looked fine before then. Her new hair is coming in white, dull, is very thin and pulls out easily. She has a lot of dandruff but doesn't seem particularly itchy. She is eating well and seems normal, otherwise. I did not breed her this year, she was a first freshener last year. My other doe who is pregnant has not started shedding and her hair is glossy and black. I am thinking she either has worms or is deficient in some mineral. Any suggestions as to what the problem may be?