So, I seen evidence of round worms in one of the chickens which indicates a heavy load. I want to try the Piperazine first and follow up with Ivermectin in 7 to 10 days. My question is does anyone know if young chicks can have the Piperazine? I have everyone together, broody moms, roosters & the chicks so the chicks would need to drink the same water. Ages range from a few days to a few weeks. I am not concerned about the Ivermectin because I will be applying that topically to the older birds. Since there apparently is a heavy load, that is why I want to do the Piperazine first because killing too many worms all at once with the Ivermectin can be harmful. Thanks for any input you might have on this!