Join Date: May 2012
Location: CT USA an English transplant
Lots of good ideas and I'm inclined to think that introducing him to the cattle while under your control is the best way to go as long as you don't behave as if they're something scarey by empathising too much - you have to maintain a very negative approach and I know it sounds silly but its possible to reward a horse for being nervous when you give it treats to try to help it not to be nervous so you only reward when it settles down.
If he ties OK you could try that (Cherie) and if he's not the sort to jump over a fence or run through it you could maybe put up some temporary electric fence as far away from the cattle as possible and extend it a bit ever day towards them
We once had two mares on a field to get some extra grazing where the farmer kept pigs, they spent the first day galloping around like your one did, we stabled them overnight and the next day they just stuck to the fence on the far side of the field but day by day crept closer until by the end of a couple of weeks we had 2 pig proof horses
Good luck, hope it all works out OK. If all else fails you could ask your vet for some ACE until the scarey things look more normal to him