I had a very ill hen last week. She could not walk, nor really even stand. She had aqueous diarrhea, I'm not experienced enough to know, for sure, what the pathogen was. I treated the sick hen with Tylan injections, and now she is fine, back with the other girls, and reestablishing her rightful place in the flock. I gave preventative oral oxytetracycaline to the remainder of the flock for 1 week. My question is, how long will it be before my laying hens no longer have oxytetracycaline in their eggs. I'm sure my neighbors are anxious to have this question answered, as I provide them with eggs. Thank You for your help.