The selection aims

The objectives of the Selection

A successful cow economically and easy to live for the breeder of tomorrow.

The selection in Norman race aims today at increasing the dairy production in volume while maintaining the rates. We look for cows in the bigger size,always with performances butchers. Functional characters have to improve: udder and self-balances, cells.

Since the year 2000, the Normand program of selection uses the last headways of the molecular genetics thanks to the Selection Assisted by Markers (on SAM). This information is used by GNA for the selection of the young candidate bulls in the testage and for the selection of heifers with bulls.

We can synthetize them the objectives of selection in three points, untidy priority between them.

1. Increase of the dairy production and the composition of the milk.

It is translated by an increase of the quantity of milk with a preservation of the Protein Rate and a preservation of the Rate Butyreux. The capacities cheese makers are taken into account with the typage of the genome of bulls for the Kappa casein. The possible combinations are AA, AB and BB, knowing that varying him(it) B is the one who is looked for.

2. Increase of the size, the preservation of the capacities butchers, and improvement of the functional capacities (the udder and the self-balances).

The solidity and the adaptation to the machine milking of the udder, as well as the solidity of the members (called self-balances) assuring a good locomotion of the animal, are wages of longevity of animals.

3. Improvement of functional characters:

Cells, fertility, longevity.
These criteria, which were already indexed for some years, were integrated(joined) into the new ISU on 2001 because of their economic importance.