the cattle will not hurt your hunting.As for your plots they will mow them down.use the metal stake fence posts and 2 strands of barb wire with top wire around 3' will keep them out.the fence will not bother the deer they will just jump it.Also do the same to any feeders you will have going.just make sure you have plenty of room around feeder inside of fence.dont cramp them up they will not like that