I got my little monkey Jasper at 8 weeks old. When we picked and just about to walk out the gate him up the breeder stated sometimes he growls at his siblings over food. My previous dog (Husky) used to resource guard against other dogs , we did preventative training (mine, find it, let's go and wait) and managed the issue.
Our new little man shocked us on the second day of having him home by growling at us when we touched his long last chew intending to take and give back. I contacted the vet the next day and got referred to puppy classes which we started at 9.5 weeks. He loves classes and food and is super smart and a bit of a dinosaur. (We didn't touch his treat after the first instant). We also do not in most cases just take anything (including when he chews the rug) we offer him something different eg. Toy or ask him for a behaviour. Puppy classes recommended the swap which he will do but is very snatchy over and did growl the first time.( We give his high value treats in his crate at all times). He raced out of his crate after getting the treat to come sit in his bed right next to us, but obviously still didn't want us touching the treat. My partner went to touch him and he got growled and snapped at.
We have taken to dropping some more high value meaty treats when he has the high value treat and then leaving him (at random not every time). He then progressed to getting protective of his kibble about a week ago (12 wk old). We immediatly have commenced feeding half his kibble and adding extra before he finishes what's in the bowl with a 'more' cue so he knows we are coming. He has stopped hovering over the bowl and now gives a really loose tail wags, he will also turn to look at us if we are close by and moves away from the bowl when we reach down to the bowl. We also do a kibble feed by hand and training combo for one of his meals each day.
He still guard high value very much, but we are working on the foundations of trust.
I do alot of training and have worked with mainly adult dogs before ( 5 years ago now) with highly agressive behaviours but have never dealt with this behaviour in puppys.
He has learned sit, drop, decent recall. I personally like to teach mine, leave it, drop it and find it which he is pretty good at (the beginning stages).
I just wonder if anyone has further suggestions to curb or manage with puppy's this young displaying this behaviour and what your experiences have been because honestly this behaviour has me so panicked when it first happened that I would have a highly agressive dog. Did your puppys resource guarding progress to other things?
Also wonder if anyone's Goldy's give them a mean face before their mouthing, just not sure if that's normal for a Goldy puppy?