ICC$

For JERSEYS

Create the Ideal Cows
for Your Progressive Dairy

The ICC$™ index is your tool for creating Jersey cattle that maximize component yields and are healthy and reproductively efficient.

The index is comprised of traits that directly impact your bottom line, and its sub-index makeup provides you opportunity to target your genetic selection to specific areas of herd management.

When targeting genetic selection, select bulls on their overall ICC$™ value and then place emphasis on a sub-index.

Photo of Jersey cow inside barn

The ICC$™ index for Jerseys includes three sub-indexes: Cheese Maximizer (ChMAX$), Sustainability (SUST$) and Fertility (FERT$). Keep in mind you’re building on genetics for the future so consider the genetic needs of your herd for the coming years.

Learn more about each sub-index and its components below:

ICC$ Sub-Index Pie Chart
ICC$ Sub-Index Pie Chart
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Cheese Maximizer (ChMAX$)

Focuses on component yields and provides equal weightings on both Fat and Protein. Unique among Jersey indexes, the ICC$™ index is neutral on milk and instead focuses on the total Combined Fat and Protein yield.

  • 50% Protein
  • 50% Fat
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Fertility (FERT$)

Contains five measures of cow and heifer fertility. Selection of bulls with high FERT$ rankings results in optimal age at first calving, reduced days open and shorter calving intervals.

  • 50% Daughter Pregnancy Rate
  • 25% Heifer Conception Rate
  • 15% Cow Conception Rate
  • 5% Early First Calving
  • 5% Fertility Haplotypes

Sustainability (SUST$)

Comprised of traits for improved, sustainable health and longevity. Among the traits is a proprietary trait called Calf Survivability (CSRV). Also included are udder traits that have an impact on culling rate. Selection for the SUST$ sub-index emphasizes udder health, longevity, functional udder traits and calf survivability. These are all critical to keeping animals healthy and in production.

  • 35% Productive Life
  • 15% Udder Traits (35% Udder Cleft, 30% Udder Depth, 25% Fore Udder, 10% Teat Length)
  • 14% Livability
  • 12% Calf Survivability
  • 12% Somatic Cell Score
  • 12% Mastitis

See How Sires Rank

View the GENEX Jersey lineup here or download the GENEX Dairy Bull Search app, which enables you to search, sort and filter sires according to your criteria!