As part of the development of EBVs, RBVs (Research Breeding Values) can be calculated for traits, in situations, were sufficient performance information exists. The calculation of RBVs enables the fine tuning of the analysis, ensuring that the breeding value effectively represent the genetic merit of the animals, for the trait. Research Breeding Values may change as improvements are made to the analytical models that are used, and as additional performance information is collected.
TACE RBVs are expressed in the same way as TACE EBVs expressing a difference between an a individual animal’s genetics and a historical genetic level (i.e group of animals) within the TransTasman Angus Cattle Evaluation, and are reported in the units in which the measurements are taken.
It is important to note that the Research Breeding Values are subject to greater potential change than EBVs routinely reported as part of the TransTasman Angus Cattle Evaluation (TACE) and should be used with caution in animal selection decisions.
The RBVs published for an individual animal can be benchmarked within the breed using the RBV reference table.