Assertion: ruminant's system | /r/ObjectUse | used in country
Facets:
Source sentences:
text: In some countries the net energy (NE) system is used, in other countries the digestible energy (DE) or metabolizable energy (ME) system is used.
text: In some countries the net energy (NE) system is used, in other countries the digestible energy (DE) or metabolizable energy (ME) system is used.