I adopted two Buff Orpington's one year ago, Goldie and Gerty. Goldie has bronchitis and last night she passed a shelless egg (yolk only). I am very concerned for her health. There are no poultry vets for at least 200 miles. After much online research, I believe that Tylan 50 is what I need to treat her. Can't find the product to order it. Time is of the essence.