Single Step

NAV Beef evaluation

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NAV has released breeding values for purebred beef bulls and cows. Beef breeding values are updated to NAV Beef Search.

In this evaluation genomic breeding values for weight/growth and carcass traits were published for the five main breeds (Aberdeen Angus, Charolais, Hereford, Limousin, Simmental). For other traits and breeds, breeding values are based on phenotypic information.

In NAV Beef Search it is possible to search after genomic proven animals, and the genomic status is also shown on animal’s own page whether the animal is genomic proven or not.

Read more about the changes:

NAV Evaluation

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The fourth NAV routine evaluation this year took place as scheduled. NAV Bull Search has been updated with the new EBV’s and GEBV’s.

In this evaluation single step method was introduced for fertility and it replaces the so called two step method. Single step uses all information from genotyped and non-genotyped animals simultaneously.

In the calculation of conformation indices, the breed averages have been updated for all breeds, and that especially affects the frame index for all breeds. For Holstein the weights and optimum in the udder index have been changed.

Read more about the changes:

NAV Evaluation

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The second NAV routine evaluation this year took place as scheduled. The NAV Bull Search has been updated with the new EBV’s and GEBV’s. NAV Beef Search is also updated with new beef x dairy breeding values.

In this evaluation single step method was introduced for milkability and it replaces the so called two step method. Single step uses all information from genotyped and non-genotyped animals simultaneously. Read more from the paper Improved breeding values for Milkability.

Results from two new genetic traits were added to NAV Bull Search. BLIRD for Holstein and JNS for Jersey. More information about genetic traits is found on NAV homepage.

Read more from the NAV newsletter.

NAV Evaluation

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The first NAV routine evaluation this year took place as scheduled. The NAV Bull Search has been updated with the new EBV’s and GEBV’s. NAV Beef Search is also updated with new beef x dairy breeding values.

In the dairy cattle evaluation single step method was introduced for growth and it replaces the so called two step method. Single step uses all information from genotyped and non-genotyped animals simultaneously. The RDC yield evaluation is improved with several modifications and more will follow in the future.

Read more about the changes:

NAV Evaluation

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The fourth NAV routine evaluation this year took place as scheduled. The NAV Bull Search has been updated with the new EBV’s and GEBV’s. NAV Beef Search is also updated with new beef x dairy breeding values.

In this evaluation single step method was introduced for general health and claw health and it replaces the so called two step method. Single step uses all information from genotyped and non-genotyped animals simultaneously.

Read more about the changes: