You don't need a scale for the calcium, just a needle and syringe.
Two pound duck:
2/2.2 x 100/230 = 0.39ml of Calcium Gluconate orally from the syringe (remove needle).
Dose for two pound duck is 0.39ml.
Three pound duck:
2/2.2 x 100/230 = 0.59ml of Calcium Gluconate orally from the syringe (remove needle).
Dose for three pound duck is 0.59ml.
The only need for a scale would be for weighing the ducks, but guessing their weight will also work.
Does that make more sense?
-Kathy
Two pound duck:
2/2.2 x 100/230 = 0.39ml of Calcium Gluconate orally from the syringe (remove needle).
Dose for two pound duck is 0.39ml.
Three pound duck:
2/2.2 x 100/230 = 0.59ml of Calcium Gluconate orally from the syringe (remove needle).
Dose for three pound duck is 0.59ml.
The only need for a scale would be for weighing the ducks, but guessing their weight will also work.
Does that make more sense?
-Kathy