I have one source that says to give niacin at 50 mg/kg every 8 hours, so for your duckling that's about 25 mg three times a day of giving just niacin.
The same source says the b complex dose is usually based on thiamine at 2 mg/kg, which for a duckling the size of your duckling is about one drop.
@CayugaJana and @Miss Lydia, where/how did we come up with the 1 ml dose?
Edited to fix dosing typo.
The same source says the b complex dose is usually based on thiamine at 2 mg/kg, which for a duckling the size of your duckling is about one drop.
@CayugaJana and @Miss Lydia, where/how did we come up with the 1 ml dose?
Edited to fix dosing typo.

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