hay turning brown?

[RustBottum]

I put new hay in my guinea pig's hay container and it is Oxbow timothy hay and it is nice a green, well by the next day it is brown. I don't know why this is happening and it is only the hay that my guinea pig eats out of cause i put hay out somewhere else and it didn't turn brown. Anyone know why this is happening?

 

[Ly&Pigs]

Maybe your pig is using it as a potty?

 

[Zeander]

RustBottum, I noticed that with my last batch of Oxbow hay. I have previously ordered it once or twice and I don't think it turned brown. But what I have now, I put it in the hay holder and they next day I don't see a green blade... but it was all green when set it out. Could it somehow be a bad batch?

 

[RustBottum]

My piggie use to use it as a potty but he hasn't been anymore. It could just be a bad batch.