Is getting hard to find Valbazen in a few areas lately. SafeGuard goat wormer works great though. If I remember correctly, it's about 22.5ml/lb for chickens. Same as for goats or dogs. Matter of fact, I just treated my puppy for giardia (beaver fever) with it and it knocked the bottom out of it. He's been playing in the creek (or what is left of it, and it's stagnant) and caught giardia. Within a day day of giving him lifeguard he's is up playing instead of laying around lathargic, and unfortunately back in what's left of the creek. About 2 weeks ago I caught him eating the remains of about a 40 lbs beaver he pulled out of the creek. I took it away, hauled it across the road and threw in the river. Now that he's nuts are dropping, he's getting brave. Twice I've caught him going down the creek, under the bridge at the road and getting in the river.
Tmi.
Anyway, SafeGuard goat wormer is about 1/4 of the price of some other wormers and makes the magic happen for wormy birds too!