Hydrocephalus

Why test for hydrocephalus?

Hydrocephalus is a disorder that affects foals during gestation. The foal develops a deformed and distended skull due to a build-up of cerebrospinal fluid around the brain. Foals with hydrocephalus are often stillborn and the birth can be very difficult due to the abnormal size and shape of the foal's head.

Our test is for a mutation in the B3GALNT2 gene (Ducro et al., 2015, DOI 10.1186/s12864-015-1936-z). This mutation was identified in Friesian horses.

Hydrocephalus is an autosomal recessive disorder. Autosomal disorders are equally likely to affect male or female horses, while "recessive" means that a horse needs to inherit the hydrocephalus mutation from both its sire and its dam to be affected. Horses that have inherited the hydrocephalus mutation from just one parent are called hydrocephalus carriers, and do not have physical signs of this disorder.

How common is it?

The hydrocephalus mutation was detected in approximately 8% of the population examined in the scientific paper linked here. We think the prevalence may be a little lower in Australia.

Purchase equine DNA testing

Price per horse = sample processing ($40) + tests

Inherited disorders

Pure and part-bred Arabian

$14 Cerebellar abiotrophy (CA) ...read more
$14 Severe combined immune deficiency (SCID) ...read more
$14 Lavender foal syndrome (LFS) ...read more

Fell Ponies, Dale Ponies and Gypsy horses

$14 Foal immunodeficiency syndrome (FIS) ...read more

Pure and part-bred Friesian

$19 Friesian dwarfism ...read more
$14 Hydrocephalus (Friesian and other breeds) ...read more

Various breeds

$14 Polysaccharide storage myopathy type 1 (PSSM1) ...read more

Quarter horses and related breeds

$14 Malignant hyperthermia (MH) ...read more
$14 Hyperkalemic periodic paralysis (HYPP) ...read more
$14 Hereditary equine regional dermal asthenia (HERDA) ...read more
$19 Glycogen branching enzyme deficiency (GBED) ...read more

Saddlebred horses and related breeds

$14 Junctional epidermolysis bullosa, Saddlebred form (JEB) ...read more

Coat colour tests

Base coat colours

$9 Agouti (the bay factor) ...read more
$9 Extension (red/black) ...read more

Coat colour dilutions

$9 Cream ...read more
$9 Dun and d1 ...read more
$9 Silver ...read more
$9 Champagne ...read more
$9 Pearl ...read more

Coat patterns

$9 Grey ...read more
$9 Appaloosa or leopard (CSNB) ...read more
$9 PATN1 ...read more
$9 SW1 (Splashed White 1) ...read more
$9 SW2 (Splashed White 2) ...read more
$9 Frame overo (OLWS) ...read more
$9 Tobiano ...read more
$9 Sabino 1 ...read more
$9 W13 dominant white ...read more
$9 W20 white markings ...read more
$9 Roan marker ...read more

Parentage/DNA profile

$33 DNA profile (microsatellite) ...read more

Please check with your breed society before
testing for registration; some organise
their own parentage testing.
This order includes:
Samples from offspring and both parents
Samples from offspring and one parent
Offspring sample, parent profile certificates
Offspring sample; parents on file
One sample; no parentage verification

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Need different tests for each horse? You can customise your choices for each horse on next page.