Oyster Shell Supplements?

ChickenCanoe

Crossing the Road
9 Years
Nov 23, 2010
29,682
19,844
867
St. Louis, MO
You can use calcium carbonate. Yes they kill the oysters but not for chickens. They kill them for people to eat oysters. The oyster shell is a by-product of people eating oysters. The issue that can be a problem is that oysters need oyster shell in the ocean to make new shell.
 

tantricdragon13

Songster
5 Years
Mar 26, 2014
159
27
106
Nashville
In the past
Crushed, rinsed eggshells! These are the same in calcium as oyster shells and they are much cheaper!!
That's what we do! I did have someone once tell me that this would make them egg eaters, but we never had a problem. I guess rinsing and changing the shape by crushing doesn't make a connection in the hens' minds.
 

Mountain Peeps

Jesus is my life
Premium member
5 Years
Apr 23, 2014
28,450
5,628
647
Colorado
My Coop
My Coop
In the past 

That's what we do! I did have someone once tell me that this would make them egg eaters, but we never had a problem. I guess rinsing and changing the shape by crushing doesn't make a connection in the hens' minds. 

Yeah many people say that , like you said, it causes hens to eat their eggs. But by rinsing them it gets rid of the raw egg taste and by crushing them it gets rid of the egg shape.
 

donrae

Hopelessly Addicted
Premium member
9 Years
Jun 18, 2010
31,453
3,898
581
Southern Oregon
I don't even rinse or crush mine...just toss the halves in the coop. No egg eating problems yet...although it's only been 20 years


No oysters are caught specifically to harvest the shells. The shells are a byproduct of harvesting them for human consumption. I remember going to the coast recently and seeing a mountain of oyster shells--I'm not kidding, this pile was a good 30 feet tall. So not using them isn't really going to effect harvesting oysters.
 

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