Toby's coat seems to have gone fluffy and soft down his back. It was glossy and wiry before but looks a bit dull and chick-like now (sorry for the awful explanation
). Is there any reason for this? He's healthy and happy. He was castrated at 7 months, I've read that this can make a difference but it's only for the last couple of weeks I've noticed any difference, could it still be related?