such filter-feeding animals shall receive all their nutritional requirements from nature, except in the case of juveniles reared in hatcheries and nurseries;
beidh riar a riachtanas cothaithe uile ón nádúr ag ainmhithe scagbheathaithe den sórt sin seachas i gcás ainmhithe óga den sórt sin a thógtar i ngorlanna nó in iasclanna;