F1 vs. F1B St. Berdoodle: An In-Depth Side-by-Side Comparison

If you’re considering bringing a St. Berdoodle into your home, you may have encountered terms like “F1” and “F1B” and wondered what they actually mean. Designer dog breeds, like the St. Berdoodle, are becoming increasingly popular. These breeds are created by crossing two different purebred dogs to produce a unique hybrid with a combination of traits from both parent breeds. Many believe that mixing two breeds leads to healthier dogs, as it introduces genetic diversity—a phenomenon known as hybrid vigor.

In the world of designer dogs, F1 and F1B refer to specific generations of crossbreeding. Understanding these acronyms is key when choosing the right St. Berdoodle for your family. Let’s break it down:

What is an F1 St. Berdoodle?

An F1 St. Berdoodle is the first-generation offspring of a purebred St. Bernard (or Newfoundland) and a purebred Poodle. These dogs are typically 50% St. Bernard and 50% Poodle, however with genetics the offspring will acquire certain traits but not others. F1 St. Berdoodles are often a good balance of both parent breeds, making them unique in terms of temperament, size, and coat type.

What is an F1B St. Berdoodle?

An F1B St. Berdoodle is created by breeding an F1 St. Berdoodle (50% St. Bernard, 50% Poodle) with a purebred Poodle. The result is typically 75% Poodle and 25% St. Bernard. This generation is more likely to have a non-shedding, hypoallergenic coat, making it an ideal choice for allergy sufferers. It’s also easier to manage their grooming due to their Poodle-like coat, which tends to be curlier and more tightly curled than that of the F1 generation.

F1 vs. F1B St. Berdoodle: Key Differences

While both F1 and F1B St. Berdoodles are charming and make wonderful pets, there are important differences to consider in terms of appearance, coat type, health, and suitability for different lifestyles.

Genetics & Health

  • F1 St. Berdoodle: As a first-generation hybrid, the F1 St. Berdoodle benefits from hybrid vigor, which generally means they are healthier and less prone to inherited genetic diseases. Hybrid vigor occurs because the offspring inherit a broader genetic pool from both parents, reducing the likelihood of recessive genetic defects.

  • F1B St. Berdoodle: The F1B generation has a slightly lower level of hybrid vigor since it’s a backcross—meaning it’s bred back to one of the purebred parents (the Poodle). While they may have fewer genetic issues than purebreds, they don’t benefit as much from hybrid vigor as the F1 generation.

Appearance & Coat Type

  • F1 St. Berdoodle: The coat of an F1 St. Berdoodle can be straight, wavy, or curly, depending on which traits they inherit from their parents. Their shedding can also vary, as the St. Bernard’s coat is thicker and sheds more than the Poodle’s coat.

  • F1B St. Berdoodle: F1B St. Berdoodles tend to have curly or wavy coats, thanks to the higher percentage of Poodle genetics. These coats are usually more consistent and require less maintenance in terms of shedding. They are often considered hypoallergenic, making them a popular choice for allergy sufferers.

Size

  • F1 St. Berdoodle: Due to their St. Bernard parent, F1 St. Berdoodles are typically large dogs, with an adult weight range of 100–125 pounds. Their size may vary depending on whether they inherit more from the Poodle or St. Bernard.

  • F1B St. Berdoodle: F1B St. Berdoodles are generally slightly smaller than F1s, but their size can still range significantly. The Poodle’s influence makes them somewhat more compact, but they still fall within a similar weight range, depending on the parent.

Health Benefits

  • F1 St. Berdoodle: Thanks to their hybrid vigor, F1 St. Berdoodles often enjoy better health and are less likely to inherit common breed-specific health issues. However, like all hybrids, they can still inherit conditions from both parent breeds, such as hip dysplasia, eye issues, and other genetic concerns.

  • F1B St. Berdoodle: While F1B St. Berdoodles are still healthier than purebreds, they have a slightly reduced advantage in hybrid vigor compared to F1s. However, they benefit from a lower risk of shedding and allergy-related issues due to their increased Poodle genetics.

Which One Should You Choose?

Both F1 and F1B St. Berdoodles make excellent family pets, but your choice depends on your preferences and lifestyle:

  • Choose an F1 St. Berdoodle if you prefer a dog with the potential for more hybrid vigor and don’t mind moderate shedding. The F1 is a great choice if you’re looking for a large, healthy, and energetic dog that’s a balance of both breeds.

  • Choose an F1B St. Berdoodle if you have moderate-to-severe allergies or prefer a dog with minimal shedding. The F1B is also a good option if you want a more predictable curly coat and are willing to deal with slightly fewer health benefits due to the backcrossing.

What About F2 St. Berdoodles?

An F2 St. Berdoodle is the second-generation hybrid, produced by breeding two F1 St. Berdoodles. This generation is less predictable, both in terms of appearance and temperament, and is generally considered the most genetically inconsistent of the St. Berdoodle generations. Due to the variability, most breeders avoid F2 generations.


Final Thoughts

Choosing between an F1 and F1B St. Berdoodle depends on what you prioritize in your new pet—whether it’s health, coat type, size, or hypoallergenic qualities. Regardless of which generation you choose, both make wonderful family companions with the right care and attention.

For more information about St. Berdoodles or Newfadoodles, or to adopt one from Karing Hearts Kennels, click here.