Momma rabbit had 9!!! babies last week wed, 8 days old now, 2 were still born and since then 3 have died, shes been an excellent momma in the past and this is first time shes lost any, they look like 2-3 day old bunnies the last 4, one has a white hard ring around its unbilical(sp) spot, I thought it was an infection but its hard solid, what can I do for it? I really dont want to lose another baby

