This entry was posted in Ysterberg Mastiff and tagged Boerboel, South African Mastiff, Ysterberg Mastiff.

Image of Ysterberg Mastiff found on Pinterest and will be credited upon receipt of information We always defer to breed experts and welcome additional insights into this topic! Original Ysterberg Mastiffs could be piebald and Irish marked, and they were big! Indeed, when comparing a Ysterberg to a Boerboel, the former is a frame size or two bigger. There are those who maintain that early on, some dogs were registered as Boerboels, even though they were Ysterberg Mastiffs, and as proof, they cite issues of size and coloring appearing in Boerboel litters even today. For the past decade, Ysterberg Mastiff bloodline breeders have adhered to a controlled program of the Council which makes a distinction between the Boerboel, South African Black Mastiff, Ysterberg Mastiff™ and South African Mastiff®.Įvidently, there was enough confusion associated with the names, “Ysterberg Mastiff” and “Boerboel” that in 2019, the Council re-branded itself and changed the organization’s name from Ysterberg Mastiff™ Breed Council to “South African Mastiff® – powered by Ysterberg since 1948.”

In order to protect Ysterberg bloodlines, these folks decided to resurrect the original Ysterberg type of the past by isolating those lines out of Boerboels, and the Ysterberg Mastiff Breed Council was formed. In 2010, however, like-minded individuals came to realize that their vision for the Boerboel was very different from what Boerboel organizers had in mind. When the first Boerboel organization was founded in 1983, Ysterberg dogs were included because their conformation fell within the parameters of what founders were looking for in the Boerboel. Some sources indicate, however, that the Ysterberg Mastiff was part of the foundation stock of the Boerboel in other words, a breed unto itself. Bred by Klaas van Waveren before the Boerboel was officially recognized, the Ysterberg has been described the oldest living bloodline in Boerboel history. Some write that the Ysterberg Mastiff is a Boerboel bloodline that existed in the early 1940s in South Africa.

As it turns out, the answer isn’t very clear, at least not to us. We wondered if this was a breed unknown to us, or something else. While doing a little research on the Boerboel, we came across several mentions of the Ysterberg Mastiff.

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