What Is the Average Puppy Litter Size of a Mastiff?

by Jane Meggitt Google
    It's likely he has seven brothers and sisters in his litter.

    It's likely he has seven brothers and sisters in his litter.

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    Among the largest of all dog breeds, full-grown mastiffs can top 200 pounds, standing 30 inches high at the shoulder. Although large, these gentle giants aren't that common, so if you're in the market for a mastiff puppy from a reputable breeder, you might have to wait a while.

    Mastiff Litter Sizes

    A mastiff might give birth to only one puppy in a pregnancy, but litters of up to 16 puppies have been reported. In between these two extremes is the average litter size, which is about eight puppies. These puppies grow fast, so if you're planning to breed your female mastiff, allow mother and offspring ample room.

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    About the Author

    Jane Meggitt has been a writer for more than 20 years. In addition to reporting for a major newspaper chain, her work has appeared in "Horse News," "Suburban Classic," "Hoof Beats," "Equine Journal" and other publications. She has a Bachelor of Arts in English from New York University and an Associate of Arts from the American Academy of Dramatics Arts, New York City.

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