I hatched 18 Guinea Keets on 6-11-16. After about 2 weeks, 8 stopped walking normal and started crawling around. A few can stand but when they try to walk they all end up flopping around and crawling. They all eat and drink and are growing. I've been putting Poly-Vi-Sol vitamins (without iron) in their water. For about a week now. Still no improvement. They have always been inside our well house. In a large cage. Not exposed to any adults. But have been close to 8 baby chicks and 15 baby turkeys. That I've also hatched. None of the other breeds have done this. So that makes me think this is some sort of deficiency, rather than a disease. Anyone have any ideas how to help them? Thanks for any & all advice!!