Confirmed Genetic Abnormality Carriers

To access a list of known genetic carriers please use the following links.


Partial to almost complete lack of hair. Affected calves are often born with very short, fine, kinky hair that may fall out leaving bare spots or areas particularly susceptible to rubbing. The condition may vary in expression as the animal matures and is usually less noticeable in older animals. The haircoat color will sometimes appear "frosted" or "silverish." Tail switch may be underdeveloped.


Carrier Hereford bulls or females when mated to black cattle can produce offspring with a haircoat that is gray, smokey or chocolate color.

Idiopathic Epilepsy

Age of onset or first seizure can be variable, ranging from birth to several months of age. Occurrence and persistence of seizures may be influenced by environmental stressors such as temperature extremes or increased physical activity. Upon initial onset of seizure episodes individuals will typically lie on their side with all limbs extended in a rigid state. Manual flexing of the limbs is possible, but return to the extended position occurs after release. Seizure episodes may last from several minutes to more than an hour.

When conducting online searches, you may see animals which have codes listed in curly brackets {} between the animal and registration number. These codes represent either awards the animal has received or genetic abnormalities the animal is known to be tested free of or a carrier of. Currently used codes are listed below.

  • DOD=Dams of Distinction Award
  • SOD=Sire of Distinction Award
  • CHB=CHB Sire Award
  • HYC=Hypotrichosis Carrier
  • HYF=Hypotrichosis Free (tested and results indicate animal is not a carrier)
  • DLF=Dilutor Free (tested and results indicate animal is not a carrier)
  • DLC=Dilutor Carrier
  • IEF=Idiopathic Epilepsy Free (tested and results indicate animal is not a carrier)
  • IEC=Idiopathic Epilepsy Carrier


Latest News

Join Us in Kansas City for 2015 Annual Meeting

 Hereford enthusiasts will enjoy three days of events and activities including an educational forum, the Annual Meeting and the National Hereford Show during the American Royal. For more information including the schedule of events and hotel reservations, go to AHA Annual Meeting.

A highlight of the weekend will be "Celebrate the Brand 1501 Wyandotte." Join us Friday evening as we will celebrate 20 years of the CHB Program and recognize our Hall of Fame and scholarship winners. You can now purchase tickets online. Order tickets prior to Oct. 20 for $50 per ticket after Oct. 20 the cost will be $75.

Hereford Demand Continues: Year-end data proves Herefords are meeting the needs of commercial cattlemen

Fiscal year 2015 was a year of continued progress and growth for the Hereford breed as commercial producers continue to find value and predictability in utilizing Hereford genetics. A total of 195 Hereford production sales were reported by AHA field representatives during the fiscal year. Bull sales averaged $6,882, up nearly $1,800 per head; and females average $5,358, up more than $700 per head. Hereford reported 75,988 registrations (a 6% increase) and 44,424 transfers (a 10% increase) with 104,216 cows on inventory. The Association has 3,885 active adult members (a 7% increase) and 2,902 active junior members (a 9% increase). >>Read more fiscal year highlights

DNA Fee Increases

 Effective Sept. 1, 2015, the cost of the basic DNA profile also known as a parentage SNP profile will increase to $38. The cost of GE-EPD (genomic-enhanced expected progeny difference) tests and combination packages of GE-EPD test with the basic DNA profile or horn/poll tests will remain the same as they have been since late 2014.

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