I'm needing to treat my flock, and just wanted to know what would be the withdrawal period on the eggs for eating/hatching. It says "no meat/milk withdrawal," (it's for cattle) but this may not extend to eggs. Also, has anybody ever lost a hen to Eprinex? Or have them get really sick? I just wanted to know what your experiences have been. Also, how effective is it against worms and lice? When will I need to re-treat them? I've read that the proper dose is a 1/2 cc/ml per chicken, is this correct? Thank you!