Interbeef breeding values
Although NAVs member countries have national official genetic evaluations for beef cattle they participate jointly in Interbeef. For Interbeef, each participating member sends in raw performance data and pedigree. Data from each member is then treated as a separate trait in an international genetic evaluation and resulting breeding values will be published on each member countries own scale. The ranking on different country scales might be different, thus a bull that is genetically best in country A might not be best in country B.
At the moment the following countries participate in Interbeef: Australia, Czech Republic, DFS (Denmark, Finland and Sweden), France, Germany, Ireland, South Africa, Switzerland and United Kingdom. However, all countries don't participate in evaluation of all breeds and traits. So far, official Interbeef breeding values are only available for Adjusted Weaning Weight (AWW), Birth Weight (BWT) and Calving Ease (CAE) direct and maternal effects. All three traits are published for the breeds Charolais, Limousin and Simmental, whereas only AWW is published for Aberdeen Angus and Hereford. Interbeef evaluations will be extended in the future to include more traits and breeds.
Interbeef is a working group of ICAR (International Committee for Animal Recording).
Interbeef publication on DFS scale
Official Interbeef breeding values for available traits and breeds are published twice a year (March and November) and the newest results can be viewed in top lists reached by the links below.
(If using Firefox browser you might need to right-click on link, choose “Save link as” on your own computer and thereafter open it in excel)
For each breed there are three different top lists, so each excel file has three different sheets. In the header of the top lists you can see the publication rules for direct and maternal breeding values. Currently, top lists are sorted based on the breeding value for AWW direct and only include animals with a minimum breeding value of 115 for AWW direct.
A. Internationally official males
- High-reliability bulls that reach the requirement set by Interbeef to be internationally publishable in all member countries
B. DFS official males
- Bulls from list A if they are born in DFS and other bulls with official breeding values in Denmark, Finland or Sweden
C. DFS official females
- Cows with official breeding values in Denmark, Finland or Sweden
Interbeef breeding values on DFS scale are standardized so that animals with AWW record born 3-8 years before the date of evaluation has an average breeding value of 100 and a standard deviation of 10. That is similar to what is used nationally in Denmark, Finland and Sweden.
To limit the size of the top lists only animals with a breeding value for AWW direct of at least 115 is included. In the future we will improve the publication by creating a search page where all animals and additional information can be included.
Important to remember is that Interbeef evaluations are only available for some economically important traits some of which are analyzed in single-trait models whereas the official evaluations in Denmark, Finland and Sweden, respectively, are multi-trait models also including several other traits. Further, Interbeef evaluations also uses information from relatives in different countries. Therefore the ranking based on Interbeef breeding values can differ substantially from national rankings.