We hatched about 40/100 quail in our Hovabaor. They hatched fine, but about three days after the hatch, some started dying mysteriously. But, this has happened before, but we thought it was a temperature malfunction. They are all running around the cage like normal, and they have clean food and water available at all times. The feed isn't medicated, so I was thinking that antibitoic would help in the water. Any advice?