id	keyword
ca-5827	metabolic
ca-5827	cows
ca-5827	nitrogen
ca-5827	dairy
ca-5827	digestion
ca-5827	politics
ca-5827	farmers
ca-5827	food
ca-5827	feed
ca-5827	relations
ca-5827	measure
ca-5827	good
ca-5827	dutch
ca-5827	human
ca-5827	protein
ca-5827	production
ca-5827	metabolic politics
ca-5827	health
ca-5827	farms
ca-5827	milk
ca-5827	rumen
ca-5827	anthropology
ca-5827	farming
ca-5827	netherlands
ca-5827	ways
ca-5827	life
ca-5827	crisis