We've got a female full blooded Great Pyranese that is 3 years old and a male that we've had since he was 12 weeks old. The female is great and we've never had the first minutes trouble out of her. The male has been doing well, he's almost 8 months old and already bigger than our female. Lately he's been getting very aggressive at meal time. If the goats even get close to him while he's eating he gets very aggressive with them. Last night he got ahold of one of our boers ears. She's fine, but we can't have this behavior out of our LGD. We are right now going to start taking him away from the herd at feeding time and putting him in a stall in the barn to eat. I know this is probably only going to be a temp. fix. We are also looking into purchasing a shock collar. We just don't know what is going to be the best option or if we should look into something else all together. This is our 2nd year with the goats and we are still learning. Any and all advice will be appreciated. Let me also add that he is not aggressive with the goats any other time except at mealtime.