My steer has been eating rocks and making an effort to lick dirt every chance he gets. Also every now and then he decides to chew on wood. I know it must be some type of mineral/vitamin deficiency, but what products would anyone recommend?
He definitely needs a mineral source, but I'd offer him free access to a salt block, too. Part of it may be just boredom - better he's licking a salt block than the dirt.
He needs mineral. What type of supplements are in his feed? If he is on a full feed finisher with a good supplement, just get him some type of finishing mineral.
Even cattle on mineral will tend to lick dirt/rocks a little at times. It's a survival instinct from way back before cattle were domesticated so they could get a little bit of mineral in their diet.