social instability in laying quail consequences on yolk steroids and offsprings phenotype社会不稳定在鹌鹑蛋黄类固醇和后代的表型.pdf

Social Instability in Laying Quail: Consequences on Yolk Steroids and Offspring’s Phenotype 1 1 1 2 ´ ´ 3,4 Floriane Guibert *, Marie-Annick Richard-Yris , Sophie Lumineau , Kurt Kotrschal , Daniel Guemene , 5 ¨ 6 ´ 1 Aline Bertin , Erich Mostl , Cecilia Houdelier ´ ¨ 1 UMR 6552 Ethologie animale et humaine, CNRS-Universite de Rennes 1, Rennes, France, 2 Konrad-Lorenz-Forschungsstelle, University of Vienna, Grunau, Austria, 3 UR83 ´ ´ Unite de Recherches Avicoles, INRA, Nouzilly, France, 4 Syndicat des Selectionneurs Avicoles et Aquacoles Franc¸ais, INRA Tours-Nouzilly, UR83-URA, Nouzilly, France, ´ 5 UMR 85 Physiologie de la reproduction et des comportements, INRA-CNRS-Universite de Tours-Haras Nationaux, Nouzilly, France, 6 Department of Natural Sciences - Biochemistry, University of Veterinary Medicine, Vienna, Austria Abstract Individual phenotypic characteristics of many species are influenced by non-genetic maternal effects. Female birds can influence the development of their offspring before birth via the yolk steroid content of their eggs. We investigated this prenatal maternal effect by analysing the influence of laying females’ social environment on their eggs’ hormonal content and on their offspring’s development. Social instability was applied to groups of layin