Increase Your Total Merit With DanAvl

In the future, the world’s leading breeding system shall be known by one just name throughout the world:  DanAvl. 

A threefold increase of exports makes new demands on branding as well as a better service of the customer.

 

The breeding index value is calculated with the help of the BLUP statistical calculation procedure, with the calculations being carried out per breed. For each breeding animal, a breeding index value (sub-index) for each trait summarised in the breeding objective is calculated, which provides the best estimate possible of the genetic level on the basis of the information available.

Some of the traits summarised in the breeding objective are linked to each other. Daily weight gain and the lean meat percentage correlate negatively with each other genetically, i.e. animals that are only selected for increased weight gain result in a lower genetic level for the lean meat percentage. Daily weight gain and the feed conversion ratio are also genetically correlated, nevertheless positively in this case. The same applies to feed conversion ratio vs. lean meat percentage.

This is exploited with the index calculation by using a multi-trait model where the breeding value for the three traits are calculated in one and the same model. This is of great significance for the calculation of the sub-index value for the feed conversion ratio, because as a result the data basis for the sub-index calculation is expanded considerably as information from the measurements of fat thickness taken in the nucleus herds and daily weight gain is included in the calculation.


The sub-index is given as a deviation from the average of the base population. The base population of a breed consists of all active (i. e. living) offspring-tested breeding sows of a breed, as well as offspring-tested sows that have been born within the last six months. Because the base population constantly changes and achieves an increasingly higher genetic level, the index for an animal will automatically fall with increasing age.