I have a Newdle (newfoundland x poodle) pup thats 7mo and cant stay away from the chickens. She is big 65lbs and growing. I have put up 2x4 welded wire over the chicken wire to keep her from breaking the chickens out. She did get hold of our easter egger and it didnt fair to well, she is alive but permanently damaged. Can I break my pup from this behavior or do I have to continue making obstacles (she figures them out after time) to protect the chickens for life?