(Holstein/Friesian cattle)

Deficiency of uridine monophosphate synthetase results in foetal death during the first trimester of pregnancy. The mutation responsible for the defect has been recorded in North American Holsteins, in a sire line that, fortuitously, was not used widely in the international Holstein herd. It is not known if exists in the Australian Holstein/Friesian herd.

Specimens required

See Collection of hair samples for DNA testing

For heterozygote detection:

1. 20 to 25 hairs, with roots attached, from the distal end of the tail.