You could still use that syringe. Just pull up the same amount as you would with a smaller syringe. There should be marks from 1 ml to 2 ml. How much is the weight? The dosage is roughly 0.25 ml (1/4 ml) per pound once and repeat in 10 days for roundworms. To treat for all worms except...
You need to take any needle off the syringe, and pull up a bit of the paste that has been squirted on a saucer or something. A 5 pound chicken would get 1.25 ml if using the 0.25 ml per pound dosage. An easier to use product is SafeGuard Liquid Goat Wormer, also 10% fenbendazole. Shake the...