WELL, I have been going through this for years. It looks JUST like my does. All my does that have kidded have done this.
OK after having two different places do a study on it this is what they have come up with.
First thing they all thought was Cooper def. Nope they ruled that out because I feed Sweetlix meat makers, that is a wonderful mineral they all said. Then they said lice. NOPE, they did scrapings on that and they never saw a thing, neither have I. So the Vet school CSU in Ft Collins said it is called "Wool Loss". They call it that because it is only really been studied in sheep. The cause STRESS. I have told then that only two of mine had a problem kidding, they said it doesn't matter, what you think is stress is not what they call stress. It could just be stress for the kids nursing or something very simple.
Now I have one doe that is really bad and is REALLY dry all over and the vet just sent in some biopsy's to have them tested to see if it is a Zinc def. He said that they will lose the hair like that if it is a zinc def. They drew blood also to have a double check on the Zinc. So for now I am waiting to get the results back from CSU.
Now to let you know IF she is like mine, they lost ALL the hair. The only place they had it was on their heads, and about the shoulders down. BUT boy do they look GREAT when it grows back. I have been going this way for three years now,