Oyster shells too old?

[jaseg]

Hi everyone!

I found a bag of Oyster shells that are three years old in the shed, they were kept dry and cool, could I still use them for my hens?

 

[jaseg]

Anyone? Please!

 

[BirdBrain]

I would think they still have all the calcium they came with. I would put it out and see what they think of it.

 

[justusnak]

Wow, I dont know....I say...let em have it...I dont see how it would have lost the effeciency. You said it was kept dry...should be just fine. Is there a manufacturer number on the bag? You might contact them and ask.

 

[foxtrapper]

Oyster shells are a mineral product. It doesn't go bad over time like feeds can.