... to contribute to the understanding of genetic results.The genetic analysis, from pedigree information, focused on probabilities of gene origin, on the one hand, and on inbreeding and relationship ... orhttp://www.inapg.fr/dsa/especes.Four of the breeds considered here have a selection programme, including on- farm performance recording, individual testing of rams in station, and progenytesting of ... are mainly due to an intense selection on a small nucleus of animals in the Berrichon du Cher breed, on the one hand, and to a low selectionpressure in the Charollais breed, on the other hand.The...