Meconium Impactions
Meconium, the first feces produced by the foal, should be passed within the first hours. Meconium is a combination of intestinal secretions, cell debris and amniotic fluid that the foal swallowed in utero. Impactions occur when there is a delay in passing meconium, which leads to obstruction of the colon.
Foals past due and colts are at higher risk.
Signs and symptoms include abdominal pain and distention, tachypnea, tachycardia, tail swishing, restlessness and straining to defecate.
Diagnosis includes x-rays, ultrasound and rectal palpation.
Treatment includes pain relief, IV fluids, administering laxatives and performing an
.
Prognosis is excellent provided prompt treatment.
Overo Lethal White Foal Syndrome
Overo coat pattern is when the white markings don’t cross the back of the horse between the withers and tail. Overo lethal White foal syndrome occurs when there is a genetic mutation. It is a homozygous/recessive gene which codes for the endothelin receptor type B.
Breeds that can carry the mutated gene include; Mustangs, half-Arabians and Thoroughbreds.
, mini, Quarter horses, Appaloosas,
The foal appears to be born normal, with the white coat colour with fail to pass feces, suffer from colic, have a defective intestinal tract and are deaf.
eyes, but they
Diagnosis is through genetic testing.
There is no treatment and euthanasia is recommended.
Prevention is through genetic testing and not breeding horses that carry the gene.
Coat Colour Dilation Lethal
Also known as
Foal Syndrome, also occurs due to a genetic mutation
caused by a homozygous/recessive gene.
Predisposition is
, especially those of the Egyptian bloodlines.
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