;)
Sounds like a respect issue. Treats need to be earned.
Here is how I trained my Boxers. (just another way to do it..many ways to skin a cat, whatever you do be CONSISTENT )
First..never leave a constant supply of food in the run. Use at least one meal as the rewards during the training session.
Two train the dog to sit and wait..for anything and everything and reward with food. For a big dog maybe a second handler (silent) restraining him with a lead so he is not so free to jump up (or tether him if you are on your own).
Tell him to sit and wait. Go to reward him, but if he jumps up don't. In a growly voice say NO!
Then pretend to eat some of the food in front of him (he will be disqusted..but you are saying I am top dog, you eat when I want you to and I eat first!)
Persist. and when his bum stays on the ground for long enough to get a treat..offer it to him from the side of his mouth not front on for a snap (you or helper can hold collar the first few times)..say "gently" and if he isn't gentle make him wait more. He will soon know if I am rough I will get no reward. When he is gentle build on it and add the words and praise him up with "Nice Manners - free to eat!"
Build on it also....
When you feed him don't let him just hog into the bowl, bring him to the dish on a lead, make him Sit, Wait. Stand in front of him and say "Manners". You move about a bit and expect him to stay where he is. Tell him "free to eat" only when you want to release him to his dinner.
Eventually he should understand and listen to you at liberty.
Started young enough you wouldn't need a second handler or a lead..but you have a big dog. So it's a suggestion to give you the upper hand.
To give it treats willy nilly or feed it while any member of your family is still eating is putting you on a par OR beneath it in your family "PACK"
It might take weeks to get right ..you will have to be diligent everyday, but persistence will give you a golden companion for the rest of his life :D
