CDCB-AJCA Genetic Evaluations

SITE COMPLETE:  View the complete Green Book (males) and Gold Book (females) online.

For your convenience, this website now has three tabs for Bull reports:

  • A, F & G Bulls (A.I. Marketed Bulls), with separate sections for the Herd Register and Genetic Recovery / Jersey Expansion lists, then a section titled Reference / Locator Lists that includes the Expanded Type Tables, Top 10 Bulls Ranked by Category, Sire Conception Rate and reference lists (A.I. marketed bulls listed in NAAB code order and also in short name order).
  • Monthly Genomic Bulls, with separate sections for Herd Register and Genetic Recovery / Jersey Expansion reports, and a third section with young sire locator lists. Note: Genomic Evaluated Young Sires reports are updated the first Tuesday of each month.
  • All Bulls, where you will find the All Summarized Bulls report, plus the two historical reports released the first day of each official run.

Reports Added

Animal registry status has been updated per action of the AJCA Board of Directors at its March meeting. These actions include:

  • A numeric code in brackets added to the registration names of OA Oomsdale Gordo Goldie Gratitude 11224922 and all descendants, with “Gratitude” labeled {1}, her progeny {2}, and continuing through six generations.
    • Example of third-generation descendant: GR Cal-Mart Dale Shah 3947{3}-ET
    • Example of fourth-generation descendant: O.F. TBone Judge{4}
  • Making the Jersey Expansion program for recording Jersey-crossbred animals retroactive to program implementation January 1, 1999. The recording system starts with a J1 female, with each successive generation sired by a Herd Register bull carrying the next level prefix (J2, J3, and so forth). Females may be recorded at all levels (J1 through J6), but males will only be recorded at the J4, J5 and J6 levels provided the bull and both parents are genotyped. Herd Register status is achieved by offspring of J6 and HR parents.

Most genetic evaluation reports have been split by animal registry status into two lists: (1) Herd Register status (HR, no prefix), and (2) eligible animals recorded through the Genetic Recovery and Jersey Expansion programs. The cutoff for the female Genetic Recovery-Jersey Expansion lists is determined by the lowest qualifying Jersey Performance Index™ (JPI) on the HR list.

For a summary of the March Board action, click here. AJCA animal recording programs, including tables showing the registry status based on parent statuses, are described here.

Evaluation Updates

AJCA: Updates were made based on new standard deviations generated from the December 2014 base changes for Jersey Performance Index2015, Functional Trait Index2015 and Jersey Udder Index2015.

CDCB: Genetic evaluations for daughter pregnancy rate (DPR) were modified in December, changing from an evaluation of days open per lactation to an evaluation of a series of “yes or no” pregnancy status observations corresponding to 21-day intervals from 50 to 250 days after calving. In the new DPR evaluation system, each cow’s observation represents the percentage of 21-day opportunity periods during which the cow was pregnant, rather than open. This new calculation changed the standard deviation for DPR, requiring an update to JPI. In addition, the standard deviation for Productive Life (PL) was corrected for this summary.

Bulls from A.I. organizations not previously participating in Sire Conception Rate (SCR) evaluations will start having evaluations published with this summary.

Put the Power of Genomics To Work for You

Visit the infoJersey Genomic Testing Center for all your genotyping needs, plus 24/7 access to evaluation reports:

  • Jersey LD test:  $37 per animal (male or female) in REAP herds, or $47 per animal for non-REAP herds, plus required female fee or initial male fee.
  • Jersey HD test:  $100 each animal, REAP herds, or $115 for all others, plus required female fee or initial male fee.