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 index value is calculated using the weighted composition of sub-indexes of the respective trait with an economic weighting that is determined according to the influence of the respective trait on the profit per breeding pig in a commercial herd. The sub-index for the respective trait is expressed in the same unit in which the trait is measured, and stated as a deviation from the average of the base animals.
When calculating the index value, the sub-index of the respective traits is multiplied by the respective economic weighting. As a result, an index contribution is obtained that is in a corresponding relationship to the economic value of the trait. After this, the index is calculated, in which all index contributions are summarised (= index contribution in total), this value is then subsequently multiplied by a standardisation factor, after which the value 100 (index average of the breed) is added:

Sub-index for daily weight gain × economic value of the daily weight gain
+ Sub-index for feed conversion ratio × economic value of feed conversion ratio
+ Sub-index for lean meat percentage × economic value of lean meat percentage etc.

= Index contribution in total

× Standardisation factor of the breed
+ 100

= Index of the breeding animal

The standardisation factor is used to maintain the variation (standard deviation) in the index for all breeds. The standardisation factor is selected in such a way that the standard deviation in the index for the base population is always 10 for Duroc and 15 for Landrace and Yorkshire. The average index for the base population is 100. The standardisation has no significance for the breeding, because a hit list of sows, boars and young animals will always look the same, i.e. animals appear in the same ranking, regardless of whether they are in a standardised or non-standardised index.