Misty Shores Chesapeakes

A Guide to Deciphering OFA Certification Numbers

The following key will be of assistance in interpreting OFA numbers for the various databases.

Hip Dysplasia

Example: LR-100E24M-PI

  • LR = Breed Code, in this case a Labrador Retriever
  • 100 = Ascending numerical identifier given to each animal within a breed evaluated as normal and given a number, in this case the 100th Labrador to be given a number
  • E = The phenotypic OFA evaluation, in this case E = Excellent, other normal phenotypes include G (Good) and F (Fair).
  • 24 = The age in months when the testing was done, in this case 24 months
  • M = Sex, in this case a male
  • PI or VPI = Indicates that the animal has been permanently identified in the form of tattoo or microchip. If the dog is permanently identified AND the id has been verified and signed off by the attending veterinarian, a suffix of VPI is applied. If the animals lacks permanent identification, a suffix of NOPI is applied. 

Elbow Dysplasia

Example:  GR-EL500F36-PI

  • GR = Breed Code, in this case a Golden Retriever
  • EL = OFA Database, in this case Elbow (EL)
  • 500 = Ascending numerical identifier given to each animal within a breed evaluated as normal and given a number, in this case the 500th Golden to be given an elbow number
  • F = Sex
  • 36 = The age in months when the testing was done, in this case 36 months
  • PI or VPI= Indicates that the animal has been permanently identified in the form of tattoo or microchip. If the dog is permanently identified AND the id has been verified and signed off by the attending veterinarian, a suffix of VPI is applied. If the animals lacks permanent identification, a suffix of NOPI is applied

Cardiac

Example:  DP-CA250/12M/C-PI

  • DP = Breed Code, in this case a Doberman Pinscher
  • CA = OFA Database, in this case Cardiac (CA)
  • 250 = Ascending numerical identifier given to each animal with a breed evaluated as normal and given a number, in this case the 250 th Doberman to be given a cardiac number
  • 12 = The age in months when the testing was done, in this case 12 months
  • M = Sex
  • C = Suffix indicating the area of specialty of the attending veterinarian, in this case Board Certified Cardiologist. Could also be:
    P = General Practitioner
    S = Specialist
  • PI or VPI = Indicates that the animal has been permanently identified in the form of tattoo or microchip. If the dog is permanently identified AND the id has been verified and signed off by the attending veterinarian, a suffix of VPI is applied. If the animals lacks permanent identification, a suffix of NOPI is applied. 

Thyroid

Example:  ES-TH800/14F-PI

  • ES = Breed Code, in this case an English Setter
  • TH = OFA Database, in this case Thyroid (TH)
  • 800 = Ascending numerical identifier given to each animal with a breed evaluated as normal and given a number, in this case the 800 th English Setter to be given a thyroid number
  • 14 = The age in months when the testing was done, in this case 14 months
  • F = Sex
  • PI or VPI = Indicates that the animal has been permanently identified in the form of tattoo or microchip. If the dog is permanently identified AND the id has been verified and signed off by the attending veterinarian, a suffix of VPI is applied. If the animals lacks permanent identification, a suffix of NOPI is applied. 

DNA

Example:  NF-CY500/4F-PI

  • NF = Breed Code, in this case a Newfoundland
  • CY = OFA Database, in this case Cystinuria (CY). These two- to three-letter abbreviations will indicate the disease code of the DNA screening test.
  • 500 = Ascending numerical identifier given to each animal with a breed evaluated as normal and given a number, in this case the 500 th Newfoundland to be given a Cystinuria number
  • 4 = The age in months when the testing was done, in this case 4 months
  • F = Sex
  • PI or VPI= Indicates that the animal has been permanently identified in the form of tattoo or microchip. If the dog is permanently identified AND the id has been verified and signed off by the attending veterinarian, a suffix of VPI is applied. If the animals lacks permanent identification, a suffix of NOPI is applied. 
  • BP = By Parentage
  • CAR = Carrier

 

For the complete list vsit OFFA.org     http://www.offa.org/numberkey.html