Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/5631004
Is Reference of Closed-circuit breeding (farrow-to-finish system)-en#Sense
Yhdistelmätuotanto-fi#Sense
Yhdistelmäkarjantuotanto-fi#Sense
Élevage en circuit fermé-fr#Sense