Minimum requirements of health data for CDCB genetic evaluations¶

These constraints are imposed on data that has already been successfully submitted to the cooperator database.

• Species code = 0 (dairy cattle)
• Lactation numbers 1 to 5
• Days In Milk (DIM) 0 to 700
• Known sire
• Age at calving ≥ 18 months
• Herd-year must have at least 1 occurrence of event
• Herd-year must have at least 5 cows with lactation records
• Herd-year incidence must be less than population mean incidence + 3 standard deviations
• DIM requirements by event. Animals must meet this minimum DIM requirement; events must occur within this time frame
  • Milk fever = 30 DIM
  • Displaced abomasum = 60 DIM
  • Ketosis = 60 DIM
  • Mastitis = 210 DIM
  • Metritis = 90 DIM
  • Retained placenta = 10 DIM

• 1st lactation cows calving within the previous 14 months