Because they are destined to be VERY large dogs, basic obedience training should be a part of every Mastiff's upbringing. Adequate socialization is an extremely important part of a puppy's training. An unsocialized dog, of any breed, can become either fearful or aggressive.
A well socialized Mastiff is a stable Mastiff. Most Mastiffs are easy to train because they are so eager to please, but they are generally more easily trained when young. A puppy's brain develops very rapidly.
New information is absorbed at an astonishing rate as they learn from their environment. You want to make certain that WHAT they learn is desirable; therefore, you must guide them in their learning process. Also, just as in any other breed, some individuals are stubborn, dominant, etc., and in such cases the behavior pattern should be identified early and the training adjusted appropriately to compensate for it.
Unless you plan to compete in conformation or obedience, basic obedience is all your puppy really ...
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