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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Genetic management of the Breton Black-Pied cattle breed

INRA Prod. Anim., 15(3), 221-230.


1 INRA Station de Génétique Quantitative et Appliquée, 78350 Jouy-en-Josas cedex

2 Institut Supérieur d’Agriculture de Beauvais, rue Pierre Waguet,BP 313, 60026 Beauvais cedex

3 Parc Naturel Régional d’Armorique, 15 place aux foires, 29590 Le Faou

4 Société des éleveurs de la race bovine Bretonne Pie-Noire, allée Sully, 29322 Quimper cedex


Since its conservation programme started in 1976,the Breton Black-Pied cattle breed has been one of thetwelve French dairy breeds under conservation. A profileof corresponding breeders was briefly outlined andinformations are given about the population size overtime. The guidelines used for past genetic managementare presented. Usual criteria for monitoring geneticvariability are calculated and discussed (coancestry,inbreeding and number of founding genes still present).The motivations and principles of a future breedingplan, expected to be more efficient, are presented.The trend observed in the current programme wouldlead to an average inbreeding coefficient of about 10-11% for animals born in 2030. Simulations showed thatimplementing the new plan would reduce this coefficientto only 4.5-5%.

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