I cannot see that he swallowed any of the bone, I deliberately get large ones so that it is more of a tooth cleaning exercise! He has been fine as far as his bowel movements are concerned. Sorry I am not sure of his exact weight but when he was last at the vets they said he was 1.5kg heavier than he should be for a dog of his size. Hope this helps.
Ive not noticed anything other than initially mentioned. He's a funny little character who tells me when to go to bed and then gets me up at 1 in the morning, then again at 3 so his habits have not changed! As far as I am aware he has no other symptoms. The reason I am querying is that he very rarely has smelly wind and, like most dogs, very rarely is he sick other than when he eats grass which isn't very often. My own thoughts are that it has just been too rich for him as I have had him on a special diet to (a) reduce his weight (overly kind in-laws I am afraid) and (b) to aid with his anal gland problems. He gets Naturesdiet to eat (a quarter of a tub in the morning and again at night) and one dentistix everyday. His only other treats are markies biscuits and now and again he has cooked beef/chicken bits.
Thank you so much for your time. I will definitely do as suggested and hopefully he will not be taking a visit to his vet. All the best.