I have a 5 y.o. mini mancha doe (82% LM, so quite large). I got her in early October. As soon as in with the herd (10 others, ND and MM) she was immediately herd queen. She is a VERY aggressive queen. She nails my mini aussie any chance she gets when he's out helping do chores (he has no herding instincts, doesn't bother the goats, but runs around like a goon), she's now gone to ramming our Bernese Mtn Dog (who's got the temperment of a kitten, and wouldn't hurt a fly, think...big and dumb). She will hit another doe hard, hit my smallest going to be FF ND extremely hard yesterday, and during feeding has to be tied up as she bites and grabs any other doe she can. Only problem, she's got very nice conformation to work with and I love her personality towards people. She's actually let me take the herd on walks to the woods and fields, something I've never been able to do. Altho I'm thinking the other girls know the routine and may go on their own now. Would you keep her and risk her breaking or aborting someone, or get her out to a bigger herd (she came from a 80 head herd), or another herd with bigger goats at least. I will keep her till she kids mid March as I really want her kids.