Pitbull Bloodlines

Learning the bloodlines of a dog helps in knowing their genetic traits and gives an idea about its ancestors. For pitbulls, selective breeding was done in terms of strength that resulted in several bloodlines. Over the last 100 years, dog breeders have created many pitbull bloodlines, and since each breeder has his own vision, each bloodline looks different.

Red Nose Pitbull Bloodlines

The red nose pitbull is an active and intelligent dog. In the mid-eighteenth century in Ireland, the breeding of a strain of pitties was done, which were initially popular as Old Family Dogs. Then Irish Old Family Reds were developed, now known as the Old Family Red Nose (OFRN) strain. Ireland’s OFRN is used to differentiate the red nose pits as a separate bloodline segment of the American pitbull terrier.

Red nose pits were brilliant in the bear-baiting pit due to their gameness and ferocity. Thus, to retain the strain’s purity, the creators of these dogs had to use selective breeding. Eventually, in the mid-1900s, this specific strain of pitties made way to the US with Irish immigrants.

The Colby Pitbull Bloodline

The Colby pitbull is an athletic and active bloodline that needs a good amount of training as well as early socialization. The temperament of this bloodline can be aggressive if not properly trained or socialized. These dogs have respect in society for their gameness, temperament, and conformation. They are fit dogs that have the impression of high strength for their huge size. This bloodline is very agile and can work the entire day. It is known for its alertness and is always aware of its surroundings, making them perfect pets. The average Colby male is approximately 18-19 inches to the shoulders and the average female is 17-18 inches.

Brindle Pitbull

Brindle is a color pattern resembling tiger stripes but has no relation to the lineage. Pitbulls from different varieties can have this color pattern. The color can be black and brown, blue and fawn, brown and tan, or black and sable. However, there can be variations in shades. There are many bloodlines with brindle coloring. Sometimes razor edge pitbulls and gator pitbulls can be seen with brindle color patterns. This breed does not necessarily produce puppies with a brindle color pattern, because it does not inherit the color pattern faithfully. The brindle coloring occurs due to pigment genes in tissues with relative deposition of pigment within the tissues. The ancestry of brindle pitbulls is traced back to England several centuries back when terriers and bulldogs were crossbred to develop brave and strong dogs to use in bull baiting.

Gator Pitbull Bloodline

It is believed that the gator pitbull's bloodline was created from ‘Gator,’ the fighting dogs. As a result, the gator pitbull excelled in the fighting, though it is unknown if they are still excellent fighters since there has been an alteration in bloodline over the years. The short coat of the gator pit looks glossy and comes in a variety of colors including black, white, brindle, red, and a combination of these colors. The height normally reaches around 14 to 20 inches and the weight is around 80 pounds.

Razor Edge Pitbull Bloodline

The razor edge pitbull is in-demand and the most popular pitbull bloodline.  These dogs have a large head and relatively short muzzle with a strong and muscular body. Sometimes the ears are cropped, while at times their ears are pointed. This is a low-shedding dog breed and easy to groom. On a day-to-day basis, a high level of activity and extensive exercise is necessary.  They make excellent companions.

Boudreaux Pitbull Bloodline

Floyd Boudreaux created this sub-breed of pitbull that originated from his favorite dog, Blind Billy. One of Blind Billy’s offspring, Eli, was bred with another Blind Billy dog, creating the Boudreaux bloodline, and due to Eli’s fighting popularity, people started calling their puppies Eli dogs and thus, the bloodline name got changed.

Wrapping Up

These various bloodlines create a rich history in the pitbull community and understanding them can help you understand your pitbull.


Hello, I'm Shelly! I write about all things dogs. I'm a proud mother of 3. So I guess my official title is fulltime mother, part-time dog blogger. Look around and if you have any questions reach out to me shelly@mylargedogs.com