Genetic evaluation base update

Every year, the Italian Holstein Friesian Genetic Base is updated. This adjustement is due to the genetic improvement of Holstein population. Therefore, animals taken into account for the 2020 index calculation are cows born between 2013 and 2015.

The result is that the genetic evaluation comparison between the current and the past year must be correct by a variation index, whether for productive, morphological or functional indeces.

So, the comparison between 2020 and 2021 must be corrected by a specific variation index, as the table shows:



*The PFT improvement is +109.5kg but it is balanced by a constant in its formula, in order to allow the comparison of PFT indeces of different years.

The improvement of IES index is equal to 55.08 €. That means that the income for each lactation cow increase of 55 €, compared to the one of the 2020.





For the complete table of indeces variations, please, check ANAFIBJ's website.

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