Can I give my horse wheat?

It doesn't look like wheat, looks like cracked corn. I would think your best buy would go to IFA or farm store and get a bag, they come in 50 lb bags of cubed hay. they are about 2x2 chunks of compressed hay maybe from 2 to 3 inches long. l Take a narrow blade screwdriver and a hammer and break them off in little narrow pieces I make them about l/4 inch pieces. It makes great treats and costs a lot less than the little pagkages of treats.