Many wonder if perhaps there were black Boxers that were mostly bred out of the lines and that perhaps now and again a dog with a black coat shows up somewhere. However, if we look to the record keeping of the past century, we can see that this is not the case. In this 100 year time period, a black Boxer appeared once, however there is a catch to this.
In the Germany, in the late 1800's a Boxer was paired with a mixed dog that was part Bulldog and part Schnauzer. The resulting litter had puppies that had black coats. Since another breed was introduced into the bloodline, they were not purebreds. These dogs were not used for any further breeding and therefore did not have any influence on genetics going forward.
Once in a while there will be a breeder that claims to have black Boxers and will point to this one incident long ago as evidence that black does indeed run in the bloodline. However, since those mixed dogs with black coats were never used for any sort of develop program this simply does not hold true.
Another element that shows that this coloring does not exist in the Boxer line is the rule that the Munich Boxer Club created in 1925. This group had stringent control over breeding and development of Boxers in Germany and set the guidelines for the standard, conformation and all elements regarding appearance including coloring. This group did not wish for any experimenting to be done that would introduce the color black and for this reason they made a clear rule that black Boxers would not be accepted.
Some make the argument that programs may have ignored this ruling and still attempted to breed black Boxers. However it would have not been in their best interest to do so and additionally, any resulting dogs would have not been part of the Munich Boxer Club since they couldn't have been registered there. This means that any such hypothetical dogs could not have genetically been included in the Boxer's bloodline since they would have been barred from any programs that were developing and perfecting the breed.
So, now that we know:
- This color does not exist in the line
- The only record of any black Boxer in the last century was a mixed dog and not a purebred
- Guidelines and strict rules of of the club in Munich that was the foundation of today's Boxers clearly excluded black Boxers...
And it is also fair to say:
- The chance of there being some odd, rare gene mutation that brings black into the coat is extraordinarily rare; mathematically the odds are so low that this can be ruled out
- Black Boxer puppies cannot be born due to a hidden gene; this is because black is dominant over all other colors. It cannot be recessive, it always comes out over others
Why are some people still adamant that this
This leads us to the conclusion of two possibilities:
- A 'true' black Boxer simply cannot be a purebred. There must be another breed in the bloodline
- The Boxer is not black and actually is a very heavily brindled dog or a reverse brindle