Why did peter davison leave All Creatures Great and Small?

Peter Davison left "All Creatures Great and Small" after its fifth season to pursue other acting opportunities and to avoid typecasting. He felt it was time to move on from his role as Tristan Farnon, which had become quite popular. Additionally, he wanted to explore a broader range of characters and projects in his career. His departure allowed him to take on various roles in theater, television, and film.