The INRA 401 sheep bloodline traces its origins back to France in 1970, following a carefully orchestrated breeding program initiated in 1963 that involved crossing the Berrichon du Cher and Romanov breeds.
Throughout the breeding process, meticulous attention was paid to maintaining the genetic integrity of the foundation generation. Matings were meticulously conducted over several successive generations, prioritizing the selection of breeding stock from the same generation to preserve the diverse genetic characteristics present in the initial foundation generation.