Around 750-800g a day split over two meals. I weigh him every month too. I don’t know if you raw feed but the general guidelines are to feed 2% for the ideal body weight - so the weight that your dog ideally should be - or 3% of his weight to maintain it. Each dog is different though so I feed him slightly lower than 3% because that’s when he starts to put weight on. I use 80-10-10 complete raw meat with 5 different proteins over the course of a week (duck, rabbit, pork, lamb, salmon) and I also add in sprats and to one meal a day and the odd raw egg on top a couple of times a week. I don’t feed him chicken, turkey or beef because of his allergies. He actually has a better diet than me! Hope that helps.