Genetic Defects

In almost any genetic population genetic defects show up from time to time. Recently in Shorthorns a recessive genetic defect known as Tibial Hemimelia (TH), has shown up in Shorthorns. The University of Illinois is able to conduct tests to identify carriers of TH. At the present there is not a facility to conduct these tests in Canada. If you use the following link to the American Shorthorn Association site you can find out more information about TH. Recently a new genetic defect Pulmonary hypoplasia with anasarca (PHA) has been reported in 4 shorthorn calves. More information on PHA can also be found on the ASA website.

Canadian Breeders who wish to test for the TH defect are able to submit samples to the lab in Illinois. Please contact the Canadian Shorthorn Association for the required permit and submission forms at 306-757-2212, email office@canadianshorthorn.com, or click on the pdf files below.

TH Blood-Semen Import Permit
TH Sample Letter re customs
TH Sample Submission Form
TH Submission Instruction

American Association TH information Web Site Information

Canadian Shorthorn Association TH Results

- pdf format
- excel format