After first comparison of  various prolific breeds crossed with Berrichonne du Cher ( B C ), successive generations of Romanov x BC crossbreds were studied on experimental flock , in a second comparison. There was no d if f e r e n c e among ge n e ra tio n s F - i to F-4 regarding essential factors of numeric productivity in ewes. The INRA 401 dam line originated in the resulting population , which has appeared to be s t a b le in main production traits.

L. Tchamitchian, C. Lefevre, C. Brunel, B O Bibé, G. Ricordeau

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume IX. Breeding programs for dairy and beef cattle, water buffalo, sheep, and goats., , 535–540, 1986
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