It all depends on what's available in your area and what breed, type and size of milking cow you own. It also depends on what feed is already being fed to your animal.
The kind where the land owner has given you permission to ride...
grain
Rice is a grain.
farming < a grain??>
a child..
they are the same they are just used in different kind of sentences.
buckwheat
NGR stain is a stain (the kind found in the paint aisle, not the kind on your shirt) that will not make the wood grain fibers rise up from the surface of the wood. Raised grain may have to be sanded off.
I've been told to buy masonary sand- because it's fine grain. You want a fine grain...so no stones, rocks, twigs, etc that may be found in it.
Fine textured rocks have a type of grain referred to as aphanitic. This means that its grain is so tiny that it cannot be seen with the naked eye.
Find the local price per pound for the kind of grain you wish to buy, then multiply by 100,000.
I think you should go to google to findout that kind of information is not given here, sorry.