Howrse Genetics & Breeding

BLUP – Best Linear Unbias Prediction ||


If you breed 2 fully BLUPed (100%) the inborn skills on the foal should be about 70ish. If you bred 2 horses BLUPed only to about the 50s, then the foal is likely to only have about 30 inborn skills. If you breed 2 negative BLUP horses the foal will be born with no skills.
So we conclude that horses with 100% BLUP will result in the most genetic information (Genetic Potential + inborn skills) being passed to the next generation.
Inborn skills are the skills a foal is born with without acquiring them through training.


Genetic Potential – GP
Is the talent a horse possesses. The higher the GP, the more skills a horse can acquire naturally, the better the horse.



Bolding genetics means you have gained the maximum



BLUPing to 100
Full BLUP – 200 points
20% for age = 40 points
65% for training (stress: rides & training in top 3 skills) = 130 points
15% for 1sts = 30 points


Blup is unaffected by lessons & training & rides NOT in horses’ top 3 skills.


Stars ||
Bluestar indicates that a horse is purebred. All horses that are purebred will have a bluestar.


A greenstar horse is a horse with over 100 in any one particular skill when it comes to genetic potential. The overall GP is around 381.
It takes 80 generations to acquire a single greenstar. If you breed two greenstar horses, and don’t get a greenstar, this may be because of GP and BLUP. If your horses are barely greenstars & you breed with negative BLUP, the baby is unlikely to be a greenstar. To be sure you will get a greenstar, max out BLUP.
Crossbreeding can also cause this. All individual GP’s average out and this can grant an acceptable GP, but no single skill over 100.


Foaling ||
Gender is random.


Coat color is obtained by percentage. If you breed two black horses together, you may not get a black foal. You are more likely to get a coat with a higher percentage.