LANSING — A popular source of nutrition for cattle is a potential site for transferring disease, according to a recent study. Salt blocks are potential transmitters of tuberculosis from cow to deer ...

Whit Deschner stands in the middle of a pasture outside of Baker, Ore., probably 30 or 40 feet away from a black cow licking a white salt block. To most of us, this may look like a bucolic scene from ...

Buy a salt block at a feed store and you might be out $10. But after an animal has licked it? Why, then it becomes modern art. Salt blocks – those 50-pound cubes of salt offered to livestock and ...