Oyster shells and grit consumption

[lolita117]

How much oyster shell will chickens consume in a given amount of time?

Also how much grit? (free-ranged occasionally)

*when you post your replies, please include how many chickens you have*

 

[Bear Foot Farm]

They will eat the amount of oyster shell they need at the time, so it depends on other calcium sources also

If they are free ranging, they probably don't need grit at all

 

[lolita117]

I know they will get as much as they need, but I need a little more specific answer to get a better idea of consumption like 30 chickens eating a laying feed will consume so many pounds of oyster shells in a given amount of time. I'm just trying to get an idea of what my chickens might consume given a laying feed plus oyster shell free choice.