Warmblood Fragile Foal Syndrome (WFFS)

The Warmblood Fragile Foal Syndrome is a hereditary disorder that has been recognized in the United States for several years. A foal with WFFS can be aborted, be born prematurely and/or be born with abnormalities. The most important abnormalities in the newborn foal are: skin abnormalities (such as too elastic skin that tears easily, wounds that 'just' occur) and hyperextension of joints. Usually the animals will die within 1-2 weeks of birth or they need to be euthanized.

Frequently asked questions

Procedures for the WFFS-tests for horses

In the context of the Warmblood Fragile Foal Syndrome (WFFS) it is advisable to test broodmares so that you know whether your mare is a carrier. Research into carrier status is very simple at the Van Haeringen Laboratory.

WFFS-test protocol

WFFS-status KWPN-approved stallions

The KWPN has decided to test all active KWPN-approved stallions for WFFS. By publishing the WFFS status in the KWPN Database of the KWPN-approved stallions we want to inform breeders optimally.

KWPN Database
€ 122.50 per year

KWPN Membership

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  • Free advertising at KWPN Horses for Sale
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About the KWPN

The KWPN (Studbook of the Royal Dutch Sport Horse) is a Netherlands-based organization specializing in the breeding of jumpers, dressage horses, harness horses, and Gelder horses.

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