Animal breeding within ecological constraints: taking dairy cattle and pig as examples Animal breeding within ecological constraints: taking dairy cattle and pig as examples

by Haiger, A. (Universitaet fuer Bodenkultur, Vienna (Austria). Inst. fuer Nutztierwissenschaften), FAO, Rome (Italy). Regional Office for Europe eng, Besson, J.-M. (ed.), Station Federale de Recherches en Chimie Agricole et sur l'Hygiene de l'Environnement, Liebefeld (Switzerland) fre
Published 1990