Clinical Signs
The condition gets its name because most, though not all, 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. This dilution differs from gray foals because grays are born a dark color and lighten with age. It is also different from roan, because the hair is of a uniform shade, not of intermingled light and dark hairs.
Foals with LFS are unable to stand, and sometimes cannot even attain sternal recumbency (to roll from their side to lie upright, resting on the sternum, a precursor position to standing). 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. There is no cure. In some cases, the mare may also have difficulty foaling, though foaling difficulties are not the cause of the condition.
Read more about this topic: Lavender Foal Syndrome
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