id	keyword
fens-1023	litter
fens-1023	poultry
fens-1023	environment
fens-1023	food
fens-1023	abidjan
fens-1023	coli
fens-1023	escherichia
fens-1023	health
fens-1023	chickens
fens-1023	journal
fens-1023	safety
fens-1023	salmonella
fens-1023	poultry litter
fens-1023	volume
fens-1023	farms
fens-1023	risk
fens-1023	potential
fens-1023	issue
fens-1023	xxiii
fens-1023	district