Eurostat, Luxembourg. 01029051 (01/1993-12/2011) Heifers `female domestic bovines that have never calved` of a weight of > 300 kg, for slaughter: CN 01029051 /Exports /Unit = Quantities in tons /Partner: Switzerland /Reporter: European Union /01029051:Heifers `female Domestic Bovines That Have Never Calved` of a Weight of > 300 kg, for Slaughter.