A big part of training a dog is keeping the dog calm while around other animals. When a farmer has dogs around sheep the dogs don’t chase the sheep they work the sheep as the farmer wants them to.
The following footage shows the dogs bailing a sow untill being called off. Next bit of footage shows the dogs sitting on the bike with a pig on the front with sheep and cows close by and the last bit of footage I ride the bike right past five pigs without the dogs jumping off and chasing them. The reason that the dogs are not chasing these pigs is because I am calm and they are calm.