A good queen cannot ignore the crossing with selected fuchi. This is with the aim of enhancing and increasing the level of good characteristics that you want to preserve maternally and add and increase all those traits that have an additive and recessive transmissibility.

The choice of male lines is crucial and is the most important element in a company’s strategy: neglecting this aspect means relegating all one’s work to randomness. In addition, this is the only tool that a company has at its disposal to achieve an extensive, fast and measurable genetic improvement, which embraces all of its female lines.

The relevance of the value that the work on the male lines covers is such even where it is not operated in an isolated range. A correct saturation with different male lines of which each adds certain peculiar characteristics guarantees a certainty of at least 70-80% in the couplings. Here we are not talking about selection but about an optimal system to combine controlled heterosis with heribility and character retention.

The importance of male lines in mating is the key to achieving, maintaining and measuring a company genetic improvement based on hereditary genetic traits.