I use Sykes Big-L Wormer for Poultry & Pigs http://www.sykes.net.au/sykes/bigwormpoultrypigs.htm
I was advised by a vet that the dosage for this product with Levamisole Hydrochloride is 0.75nl per kilogram directly into the chooks mouth. Dose the entire flock every six weeks.
Do not dose the...