Wazine is only good for round worms which is difficult to diagnose unless you get a vet involved or they poop them out which doesn't happen unless you've just wormed them or the infestation is really bad. Valbazen is given orally (I usually use a dropper or syringe of some sort) so you won't...
How old is this rooster? Judging by his spurs I would say he's not much more than a year unless you've removed his spurs at some point. If he truly is a young bird he should look a lot better than he does. The feathers on his body look disheveled and he lacks the beautiful sheen that most...