Does stress exerted upon a hen during ovulation affect fluctuating asymmetry and social behaviour of her chicken?

behaviour blood plasma chicks comportamiento comportement desarrollo embrionario embryonic development environmental factors estres etanol ethanol facteur du milieu factores ambientales gallinas glucocorticoides glucocorticoids hens injection noruega norway ova ovulation ovule performance de reproduction perinatal period physiological regulation plasma sanguin pollito poulette poussin reproductive performance reproductividad stress