You need to do a little research to find out which wormer kills what. Ivomec IMO is worthless except for mites. Piperazine is almost as worthless as Ivomec, it ONLY kills roundworms, nothing else. People are giving you good advice here, please re-read what they've written. All that trouble you just went throught with the Ivomec was for nothing (unless they have mites), sorry.
You said you could get Valbazen, that's the best you can use and takes care of all worms. I know it's a "hassle" to worm each chicken individually but what choice do you have? That's the way it has to be done. Then 10 days later it'll have to be done again. Then to be on the safe side (according to Dawg) it'll have to be done 10 days later a 3rd time.
Dawg, I've read numerous times that Safeguard kills gapes in just the standard 2 wormings. Do you know if that's accurate?
You said you could get Valbazen, that's the best you can use and takes care of all worms. I know it's a "hassle" to worm each chicken individually but what choice do you have? That's the way it has to be done. Then 10 days later it'll have to be done again. Then to be on the safe side (according to Dawg) it'll have to be done 10 days later a 3rd time.
Dawg, I've read numerous times that Safeguard kills gapes in just the standard 2 wormings. Do you know if that's accurate?