Normally we recommend the 10% fenbendazole for goats or horses. The dog wormer is 22% I believe, but check your label. The dosage of the 10% is 0.23 ml per pound of weight given for 5 consecutive days orally. That treats round, cecal, capillary, and gapeworms in chickens. If using it for 1 time and repeating it in 10 days, that will only treat round and cecal worms. My math is not that great, but you would use less than half the dose of 22%. Most wormers are thick and settle out, so be sure to shake the bottle well before drawing up the dose with a syringe.