She is 8 weeks old and has been biting aggressively the 2 weeks she has been with me. She goes on attact mode and will bite any part of the body. She bites as long as she is awake. I’ve tried yelping and staying calm and tell her no, also tried to be dominant. I had to show serious aggression for her to stop. I don’t hit her. I don’t want to be aggressive to control her. Anyone familiar with Mastiffs can give me advise?
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