Saturday, December 26, 2020

New Paper on WFFS Origin and Distribution

A new study on the origins and distribution of Warmblood Fragile Foal Syndrome was just published this month. It involved DNA analysis of 4, 081 horses of 38 different breeds. 

A chart shows the distribution of WFFS carriers in the different breeds, ranging from 0% in many non-warmblood breeds to 17% in the Hanoverian and the Danish Warmblood. 

The origin of WFFS could not be determined, but two individuals were exonerated: it did not come from Bairactar Or. Ar. (1813), an Arabian stallion some had proposed as a possible source; and it did not come from Bay Ronald xx or his son Dark Ronald xx. Genetic material was preserved for those horses and was tested. It was further determined that the Arabian breed was not the source. 

Here is the full report:


Animated DNA image: Zephyris, CC BY-SA 3.0 <http://creativecommons.org/licenses/by-sa/3.0/>, via Wikimedia Commons


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