In March, a jury at Cardiff Crown Court took one hour 45 minutes to find Williams guilty of causing grievous bodily harm with intent.
On the night of the assault, Dandrige, 72, from Swindon, was staying at a holiday cottage near to Williams’s racehorse training centre.
He took his cockerpoo, Gulliver, for a walk in a paddock that was part of the stables, and because it was dark he used a torch.
Williams’s property has had past incidents of fly-grazing – where animals are left on land without permission – as well as hare coursing and poaching.
The court heard Williams’s family spotted the lights on their land and believed Dandridge was lamping, which is when people use bright lights to find animals such as rabbits and foxes, often with a dog.
