



I'm Rebecca B., the breeder behind Bratay Mastiffs located in Aurora, CO. Our goal is to ensure every dog that comes from our program is set up to live a happy and healthy life and is prepared for its future role when it leaves our care. We provide each of our pups with lots of socialization and love, and we are dedicated to maintaining responsible breeding policies.
Where do your breeding dogs live?
These dogs are already reserved or have gone home.
Girl 5
Female
Girl 8
Female
Boy 4
Male
Girl 7
Female
Boy 1
Male
Girl 6
Female
Girl 2
Female
Boy 7
Male
Girl 4
Female
Girl 3
Female
Girl 1
Female
Boy 6
Male
Boy 3
Male
Boy 2
Male
Boy 5
Male
Girl 1
Female
Girl 2
Female
Boy 2
Male
Girl 3
Female
Boy 1
Male
Yellow boy at 8 weeks
Male
Green Boy at 8 weeks
Male
Grey boy at 8 weeks
Male
Orange girl at 8 weeks
Female
Brown boy at 8 weeks
Male
Red boy at 8 weeks
Male
Blue boy at 8 weeks
Male
Rebecca has been certified by Good Dog's screening team for responsible and trusted breeding practices. When you're ready to reach out, feel free to ask any questions about the breed, their program, or specific puppies.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

"Deposit due with signed contract to hold any puppy."
Rebecca may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Rebecca offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don't hesitate to reach out to Rebecca directly.
You can drive or fly to pick up your puppy from Rebecca.
Meet in Aurora, CO
1456 miles away
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Meet at Denver Airport
1447 miles away
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Club memberships
Rebecca is a member of Plum Creek Kennel Club and Rocky Mountain Mastiff Fanciers.
Rebecca has been a member of Good Dog for over 4 years
Rebecca was screened for responsible practices and has been a member since 2021.

Bratay Mastiffs meets or exceeds our community standards in these areas:
Mastiff
About Abby
Abby is a female Mastiff. Carefully selected as a great representative of her breed, Rebecca decided to make her part of their program. Rebecca has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Mastiff
About Lucy
Lucy is a female Mastiff. Carefully selected as a great representative of her breed, Rebecca decided to make her part of their program. Rebecca has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Mastiff
About Ziva
Ziva is a female Mastiff. Carefully selected as a great representative of her breed, Rebecca decided to make her part of their program. Rebecca has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Mastiff
About Shire
Shire is a male Mastiff. Carefully selected as a great representative of his breed, Rebecca decided to make him part of their program. Rebecca has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Great level
Bratay Mastiffs reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Mastiffs.
Hip Dysplasia (rDVM, not registered), Hip Dysplasia
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Elbow Dysplasia (rDVM, not registered), Elbow Dysplasia Finals (OFA, BVA, SV, FCI)
Elbow testing reduces the chance of passing down elbow dysplasia, which is primarily found in large breed dogs and can cause arthritis in the elbow joint and front leg lameness.
Cardiac Evaluation (registered with OFA)
Heart testing reduces the chance of passing down congenital heart disease, which can cause a range of symptoms ranging from trouble exercising to heart failure.
Patellar Luxation
Knee testing reduces the chance of passing down Patellar Luxation, which results in the kneecap becoming displaced or dislocated and can cause mild to severe joint pain.
DNA Disease Panel
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).