Each dog is different as to how much food they need so be guided by Bailey's bodyweight and general demeanour. If he is nicely filled out and you can feel his ribs but can't see them then his weight is fine. If he is not permanently scavenging for food (and I don't mean normal cocker mooching
) then he is probably being fed enough. Some dogs would eat all day every day (I have 4 who would!!) so you do have to be careful not to overfeed. I have finally managed to get Jersey to eat Royal Canin dry food soaked with warm water (wahey!!!!!) and she gets 2 handfuls twice a day. Going by the guidelines I mentioned before, this is a sufficient amount for her. No idea what the bag says she should be fed