id	keyword
ajpf-3303	pig
ajpf-3303	africa
ajpf-3303	production
ajpf-3303	pork
ajpf-3303	pigs
ajpf-3303	farmers
ajpf-3303	population
ajpf-3303	pig production
ajpf-3303	feed
ajpf-3303	meat
ajpf-3303	systems
ajpf-3303	livestock
ajpf-3303	nations
ajpf-3303	farming
ajpf-3303	climate
ajpf-3303	disease
ajpf-3303	products
ajpf-3303	potential
ajpf-3303	breeds