World Holstein Friesian Federation
The objective of the Federation is to improve, develop and promote the Holstein Breed

Genetic traits

Genetic traits News update

Genetic Traits and Carrier Codes

C = carrier
F = tested free or non-carrier


Procedure for reporting new genetic traits
WHFF New Genetic Trait Reporting Process

Use of WHFF Direct Test Codes for Coat Color



Gene Name Description Gene and Expression Code
BLAD Bovine Leukocyte Adhesion Deficiency (deficiency of a normally occurring protein needed for white blood cells or leukocytes, which are body’s infection fighters) BLC = tested carrier of BLAD
BLF = tested non-carrier of BLAD
Mule foot Mule-Foot (toes of foot are joined, giving animal a single hoof, instead of cloven ones) MFC = tested carrier of Mule foot
MFF = tested non-carrier of Mule foot
DUMPS Deficiency of Uridine Monophosphate Synthase (one of many enzymes contributing to normal metabolic processes) DPC = tested carrier of DUMPS
DPF = tested non-carrier of DUMPS
CVM Complex Vertebral Malformation (causes still-born calves, abortions, and early embryonic losses) CVC = tested carrier of CVM
CVF = tested non-carrier of CVM
Factor X1 Factor X1 (blood clotting disorder) XIC = tested carrier of Factor X1
XIF = tested non-carrier of Factor X1
CIT Citrullinemia (accumulation of ammonia and other toxics in blood in baby calves) CNC = tested carrier of Citrullinemia
CNF = tested non-carrier of Citrullinemia
Brachyspina Brachyspina (causes abortion and stillborn, shortened spinal cord, long legs and abnormal organs) BYC = tested carrier of Brachyspina
BYF – tested non-carrier of Brachyspina
Polled Animals without horns (reported born hornless- - Not Tested). POR = code
Polled (Current- Indirect Test) Indirect Test POS = tested true polled (homozygous PP)
POC = tested carrier of polled (heterozygous Pp)
POF = tested free of polled
Polled (Future) When a direct test becomes available. Direct test code will "trump" test code on animal record  
Cholesterol Deficiency Cholesterol Deficiency CDF = tested non-carrier / free of cholesterol deficiency
CDC = tested carrier of cholesterol deficiency (heterozygous)
CDS = tested true carrier of cholesterol deficiency (homozygous)





Updated 11/05/2018