The product used for horses that resembles stove chow is called Woody
Pet.  There are also other brands of the product.  I buy some called
Savor horse bedding from the local feed store.  I use it in my guinea
pig pen.  It works well.
 
Moxie, Nexus, Smudge, Ziggy, and Chuckie
God Bless America
In God We Trust
[Posted in FML issue 5065]