Sand. Makes me recall Mr. FH's uncle bought some dandy older cows
at one time. Gee they looked good. Wasn't long til they didn't look
so hot. They really fell apart at his place. Come to find out, those
cattle had been on beet tops. I guess over a period of time, it does
ruin their teeth. They have to get so close to the ground to get the
beet tops that they get alot of dirt and sand in their teeth. Makes them
short-lived cattle that can't do well on regular pasture.
I thought that was interesting as it was the first time I had heard
of it.
In W. Montana there are places where young cattle have no teeth,
due to the old mining practices. Some chemicals interfere with the
absorption of calcium. Cows will rob from their own stores first to
supply what they need. If they need calcium, they will absorb their own
teeth to supply it. Yup, it's true.