News & Alerts


NAAB seeks Data Coordinator

May 27, 2021

Come join our team and manage the data that makes a difference in US cattle improvement!

2020 NAAB Regular Members Report Another Record Year For Unit Sales

April 12, 2021

The National Association of Animal Breeders (NAAB) members report annual units for the categories of domestic sales, export sales, custom collected, imported units for dairy and beef breeds.  With 95% of the US AI industry represented by NAAB members, these annual statistics give an unprecedented reflection of US cattle semen sales.

Caleb Rykaczewski Awarded 2021 NAAB Doak Graduate Fellowship

March 4, 2021

The National Association of Animal Breeders is pleased to announce Caleb Rykaczewski has been selected to receive the 2021 NAAB Doak Graduate Fellowship Award.

National Association of Animal Breeders Hosts 74th Annual Meeting

October 5, 2020

The Annual meeting of the National Association of Animal Breeders (NAAB) was held September 16th via Zoom conference call. Meeting agenda included the Business session and the election of directors.

National Association of Animal Breeders Announces 2020 Peer Award Recipients

October 5, 2020

The National Association of Animal Breeders (NAAB) is pleased to announce the recipients of the four NAAB Peer Awards. These Awards are designed to recognize individuals that have made a significant contribution to the furtherance of the artificial insemination industry.

Irma Vermeer hired as NAAB Data Coordinator

July 29, 2020

The National Association of Animal Breeders is pleased to announce Irma Vermeer as the Data Coordinator for NAAB. Irma began fulfilling her duties on the 27th of July.

August 2020 calving traits will reflect lower breed averages

June 4, 2020

Calving traits that previously were problematic for many U.S. dairy farmers have been successfully improved through better genetics and management.

CSS and APHIS renew Memorandum Of Understanding (MOU)

June 1, 2020

CSS and APHIS renewed a Memorandum of Understanding (MOU) effective on April 23, 2020 that extends the unique private-public sector cooperation.  This is a mutually beneficial relationship that recognizes the integrity of the CSS programs and demonstrates the close working collaboration with APHIS. 

What's going on with calving ease?

May 7, 2020

Prior to the April genetic evaluations, model changes were announced for both calving ease and stillbirth. These changes considerably improved the accuracy of the traits and improved the stability of the evaluations. A base change was applied for the calving traits as well; however, while PTAs for most traits decreased due to the base change, PTAs for the calving traits went up.

If we are making slow-but-steady genetic progress, why do you see higher PTAs for calving ease on your favorite bull? In fact, there are probably bulls that you have used frequently with no issues that have high PTAs for Sire Calving Ease (SCE). Why?

The April 2020 genetic evaluations - A Summary

April 20, 2020

The April 2020 sire evaluation had more changes than usual. This is not coincidental. The most noticeable of changes was the genetic base change.

Because the genetic base change affects PTAs already, it’s beneficial to include others changes to models, traits and indices in the same evaluation. That way, the dairy industry isn’t hit with multiple large changes in a row but instead has one large “reset” and can then continue with a stable set of proofs. It can be confusing, however, to understand all the changes and how they affect the PTAs on familiar and new bulls.

This is a summary of all the changes to the genetic evaluation that were implemented in April 2020. While it is impossible to calculate what change caused what PTA to shift, the list below may give you an idea of why a certain PTA on a specific bull changed the way it did.