Plot: Kaiser the alpaca has a mysterious and painful skin problem, and Matt calls for Julian to help him work out what is causing it, while Shona feels the pressure when she visits a herd of pedigree cows to fix a hernia in a calf for the first time. Peter tends a donkey that has has a nasty-looking cut on his eyelid, and Julian is anxious when he tries to clip the claws and beak of an aggressive parrot