I have a five-month-old Labradoodle who is vaccinated and wormed. I feed him a complete puppy food - one feed in the morning and another in the early evening. When he goes to toilet in the morning his stools are normal. However, when he toilets for the rest of the day they are much lighter in colour and runnier (the consistency of runny ice-cream). I also have an adult collie-GSD cross that I feed a complete meaty food and her stools are normal. Why do his stools change throughout the day and what can I do to get them normal?
Kim Farthing, by email