Holstein Canada

Genetic Traits and Colour Codes


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Genetic Traits and Colour Codes

Gene Name Description Gene and Expression Code
BY Brachyspina
(causes abortion & stillborn, shortened spinal cord, long legs & abnormal organs)
BYC = tested carrier of Brachyspina
BYF = tested non-carrier of Brachyspina
CVM Complex Vertebral Malformation
(causes still-born calves, abortions, and early embryonic losses)
CVC = tested carrier of CVM
CVF = tested non-carrier of CVM
BLAD Bovine Leucocyte 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
MULEFOOT Mulefoot
(toes of foot are joined, giving animal a single hoof, instead of cloven ones)
MFC = tested carrier of MULEFOOT
MFF = tested non-carrier of MULEFOOT
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
CHOLESTEROL DEFICIENCY Cholesterol Deficiency
CDF =Tested Free of Cholesterol Deficiency
CDC = Tested Carrier of Cholesterol Deficiency
CDS = Tested True Cholesterol Deficiency
BETA CASEIN A2 Beta Casein A2A2 = Beta Casein A2A2
A1A1 = Beta Casein A1A1
A1A2 = Beta Casein A1A2
FACTOR XI Factor XI
Blood clotting disorder
XIC = tested carrier of FACTOR XI
XIF = tested non-carrier of FACTOR XI
CIT Citrullinemia
Accumulation of ammonia and other toxics in blood in baby calves
CNC = tested carrier of CIT
CNF = tested non-carrier of CIT

POLLED & TRANSMITTING CODES

Gene Name Description Gene and Expression Code
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

Birth Codes (Secondary)

Code Description
MB Multiple Birth
ET Embryo Transfer (regular)
ETA Embryo Transfer Adult Clone
ETM Embryo Transfer Manipulation (Clone, Divided, Nuclear Transfer, Split)

Coat/Hair Colour Codes

Code Description
AB All Black
AR All Red
AW All White
B/R Black/red (primarily B&W although exhibits reddish peculiar hair patterns-- muzzles, ears, dorsal stripe, etc.)
B&W Black and White
IC Irregular or other colour (non-typical animals)
R&W Red and White

Coat/Hair Colour Codes

Gene Name Description Gene and Expression Code
Homozygous Black (ED / ED) B&W – black & white RDF – Tested non-carrier of red gene
Red Carrier (ED / e) B&W – black & white RDC – Carrier of red gene
Homozygous Red (e / e) R&W – red & white
Heterozygous Wildtype (e / E+)1 B/R – black/red colour pattern
R&W – red & white
RDC – Carrier of red gene
Heterozygous Black/Wildtype (ED / E+)1 B&W – black & white
B&W – black & white
BRC – Carrier of black/red gene
RDC – Carrier of red gene
Homozygous Wildtype (E+ / E+)1 R&W – red & white
B/R – black/red colour pattern
B&W – black & white
RDC – Carrier of red gene
RDC – Carrier of red gene
BRC – Carrier of black/red gene
Variant Red R&W – red & white VRR – Not tested / determined by lineage2
BKC – Carrier of black gene2

GT Codes

Code Description
GTM Genotype on file from DNA Micro-satellite Test
GTS Genotype on file from SNP Genomic Test
GT Indicates on the animal info sheet (AIS) that the animal has been genotyped.
*If both tests have been done, the code GTSM will be displayed

All results are made public, published on official documents and the Animal Inquiry page of the Holstein Canada website.


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Legend

  • 1    E+ can be black, black/red or red based on pedigree.
  • 2    Confirmation test not available (at this time).