CDCB In The News

CDCB delivers the latest news on genetic improvement, research and U.S. evaluations through its monthly newsletter, dairy media, and events.

Changes Slated for August Genetic Evaluations

Ezequiel Nicolazzi

July 24, 2025

When genetic evaluations are released on August 12, 2025, Holstein breeders will have a new selection trait to use and predicted transmitting abilities (PTAs) for calving traits will look a little bit different due to a base change.


Where Do Genetic Evaluations Come From?

Ezequiel Nicolazzi

December 2, 2024

Dairy producers worldwide use these evaluations each and every day for breeding, culling, and other management decisions. How those genetic values are used on farms is common knowledge, but where they come from may be a mystery to some.


What’s New in the August Evaluations?

Ezequiel Nicolazzi

August 12, 2024

New genetic evaluations will be available on Tuesday, August 13 for all dairy cattle in the U.S. database. Several updates were implemented in this proof run so that the evaluations are as accurate as possible.


Getting Milk Yield Right

Asha Miles

June 14, 2022

Milk, fat and protein yields are the primary drivers of dairy farm revenues.


What’s New in April’s Genetic Evaluations

Ezequiel Nicolazzi

April 4, 2022

Three times a year, genetic evaluations are calculated for all the dairy animals in the U.S. database.


Horn Fly Resistance Observed in Organic Holstein Cattle, Study Finds

Penn State University

November 16, 2021

UNIVERSITY PARK, Pa. — Some Holstein dairy cattle, particularly those with white coat coloration, naturally fend off the horn fly, a parasitic insect known to cause stress and disease in grazing cattle, according to new research conducted in Penn State’s College of Agricultural Sciences.


Lifetime Net Merit revised in August for balanced selection, profitable dairy cows

João Dürr, Ph.D. and Kristen Parker Gaddis and Paul VanRaden and Tom Lawlor and Rob Tempelman

July 2, 2021

Lifetime Net Merit (NM$) has driven genetic progress since 1994 by promoting a balanced selection of all available, economically-important traits to maximize profitability of dairy cows.


Genomics drives new trait development

Ezequiel Nicolazzi

April 5, 2021

These triannual evaluations – on April 6, August 10, and December 7 this year – incorporate genomic data along with updated performance, or phenotypic, data to assess the genetic merit of dairy animals.


Showing page: 1 of 2

CDCB Connection

A monthly newsletter, details genetic evaluation updates and industry news.