Articles

Genetic management of the Breton Black-Pied cattle breed

Abstract

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 management are presented. Usual criteria for monitoring genetic variability are calculated and discussed (coancestry, inbreeding and number of founding genes still present).The motivations and principles of a future breeding plan, expected to be more efficient, are presented.The trend observed in the current programme would lead to an average in breeding coefficient of about 10-11% for animals born in 2030. Simulations showed that implementing the new plan would reduce this coefficient to only 4.5-5%.

Authors


J.J. COLLEAU

colleau@inra.fr

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

Country : France


P. QUEMERE

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

Country : France


H. LARROQUE

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

Country : France


J. SERGENT

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

Country : France


C. WAGNER

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

Country : France

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