Blog
Basics of Equine Colour Genetics
One of the first things everyone notices about a horse is its colour. Sometimes it’s pretty clear what colour a horse is, while at other times it sparks a full-on discussion — often about foals and young horses — regarding their actual colour. However, genetics can give you a straightforward answer. To some extent — while the main genetic mechanisms are known, some colour variants and their interactions still require clarification.
Popular Sire Effect
You may have noticed that all horses in the 2025 Kentucky Derby are descendants of Secretariat. From a genetic perspective, this is an example of a relatively common trend in breeding: breeding mares to top-performing stallions. These sires are often exceptional in some way and therefore preferred by breeders, who hope their qualities will be passed on to their offspring. However, these breeding decisions inevitably shape the entire breed population, not always for the better. Let’s discuss what is known as the popular sire effect.
Genetic Aspects of Cancer in Horses
The three most common cancers in horses are sarcoids, squamous cell carcinomas and melanomas. All of these are suspected - or even confirmed - to be hereditary cancer syndromes.
Fragile Foal Syndrome – Not Only a Warmblood Problem
With breeding season in full swing here in the Northern Hemisphere, some genetic diseases are being mentioned more frequently than others. Fragile Foal Syndrome (FFS), also known as Warmblood Fragile Foal Syndrome (WFFS), is one of them. It is a disease most often associated with dressage warmbloods, but it can also be found in show jumpers, eventers, and — although much less frequently — in Paint Horses, Thoroughbreds, and other breeds.
MIM (PSSM2) Genetic Testing – What’s the Deal with it?
In the last two decades, modern molecular biology methods, including DNA sequencing – perhaps one should say mainly DNA sequencing – have turned the world of human diagnostics upside down. There is so much new information about the genetic makeup of humans, causes of features, diseases, and more and news is coming in daily.
Why to Choose EquineTest
Traditional genetic tests give you just a glimpse, but EquineTest gives you the full story. By analysing every letter of your horse’s DNA, we unlock insights into health, traits, and genetic potential like never before — gaining more knowledge, making better decisions. Because when it comes to your horse, you deserve the whole picture.
EquineTest is a plastic horseshoe
Occasionally we meet with a potential client who is seriously considering our EquineTest. He or she carefully evaluates what it will bring to them and whether it makes sense. It's an investment after all. And sometimes the whole reasoning ends with the statement: "Well, you know, my grandfather didn't need an EquineTest and what great horses he used to have!"