Good Moring and thank you for your help. I am worming my flock. Lost a chicken to mini tiny tape worms and Vet/Pathologist recommends worming. Wormed w Wazen week ago. Following up with Valbazen. Have the Vabazen bottle says: 500ml and a 11.36% suspension. 1. What amount, how many ml's do you give to standard size chickens? 2. Do I need to weight each one to determine the amount? 3. How do you calculate that amount if it goes by weight? Need this info in simple and easy to understand terms. Thank you for your help.