I wonder if it was a sheman! I know when I use to work on a hog ranch we would get a sheboar once in while. It had the weird looking vulva but as it grew up it would have the characteristics of a boar, it had the odor of a boar, it was weird hog thats for sure. it could have been a genectic mutation also, what ever could you imagine shooting the thing and then finding out it was a doe!