is Rooster Booster safe for ducks?

[riverdaughter13]

Looking into electrolytes and probiotics for ducks. Is the brand Rooster Booster safe for waterfowl? http://www.amazon.com/Rooster-Booster-Vitamins-Electrolytes-Lactobacillus/dp/B00KMNTYHK

 

[Kevin565]

I don't see vitamin percentages but it does appear fine to me.