Dr. van Haeringen Laboratorium B.V.

P854 Lavender Foal Syndrome (LFS)

Background

Lavender Foal Syndrome (LFS) is a genetic disease that affects newborn foals of Arabian horse bloodlines. The condition gets its name because most affected foals are born with a unique coat color dilution that lightens the tips of the coat hairs, or even the entire hair shaft. The color has variously been described as a silver sheen, a dull lavender, a pale, dull pinkish-gray or pale chestnut.

Foals with LFS are unable to stand, and sometimes cannot even roll from their side to lie upright. They may lay with their necks arched back, make paddling motions with their legs, and often have seizures. They are usually euthanized within a few days of birth.

Test specific information

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Age

Symptoms will develop at a young age. Within a few hours to a maximum of several weeks after birth, the characteristics that go with these genetic effects will become visible.

Turn Around Time

The turn-around-time of a test depends to a large extent on the logistics of sample transportation to the laboratory. After receiving the sample at the test location, you can normally expect the result within 10 working days. A longer delivery time applies to tests carried out by a Partner Lab.

Location of disease or trait

This disease affects the formation of bone as well as the skeletal development.

Breed dependence

This DNA test is available for the following breeds: Arabians. Additional information is available in the Frequently Asked Questions (FAQ).

Sample type

For this DNA test we accept the following materials: Hair, Blood EDTA, Blood Heparin, Tissue. Please contact Dr. Van Haeringen Laboratorium if you wish to submit other material as listed.

Result

An animal can be free and has in that situation two healthy alleles. When used in breeding this animal will not become ill due to the disease. It cannot spread the disease in the population.

An animal can be carrier and has in that situation one healthy and one disease allele. When used in breeding 50 percent of the offspring will receive the disease allele. Carriers will not become ill.

An animal can be affected and has in that situation two disease alleles. When used in breeding all offspring will also receive the disease allele. Affected will become ill.

Inheritance

This genetic factor is inherited in an autosomal, recessive, mode. This means, that the individual can be free of the disease (homozygote normal), affected (homozygous affected) or carrier (heterozygous).

Carriers may spread the mutation in a population without showing symptoms themselves. Because of this, it is extremely important to identify carriers correctly to prevent spreading of a mutation.

Severity of Disease

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Code P854

Lavender Foal Syndrome (LFS)

€ 47,80 (Incl. 21% VAT)
€ 39,50 (Excl. VAT)
Quantity