When to start Oyster Shell?

[Maddog_photog]

At what age do I begin providing Oyster Shell to my female duckie?
She currently sits at 16-weeks old. I haven’t gotten any eggs yet.

 

[Isaac 0]

You can offer them in a separate dish right now, and she will eat them as needed. Generally, the only times you're going to see a duck eating an unnecessary excess amount of OS is when their either mineral deficient, or are bored so they're resulting in eating random things.