id	keyword
brj-23954	lupine
brj-23954	feed
brj-23954	maize
brj-23954	production
brj-23954	et al
brj-23954	animal
brj-23954	methane
brj-23954	ruminants
brj-23954	doi
brj-23954	rumen
brj-23954	protein
brj-23954	emissions
brj-23954	food
brj-23954	silage
brj-23954	nitrogen
brj-23954	fermentation
brj-23954	corn
brj-23954	diets
brj-23954	efficiency