Do ducks need oyster shell like chickens?

[redhen]

Hi..i was just curious..they are on layer/corn scratch mix. but today i noticed that the egg(we get one a day) was smaller than usual..thanks, Wendy

 

[redstarbill]

Hi wendy, I have 2 pekin ducks that I feed layer crumbles and the eggs are always big and shells strong.

 

[redhen]

thaks for the help!..and i see you are new here..welcome!