organism: respiratory tract metagenome
attributes.tag: breed
attributes.value: Duroc-Landrace-Yorkshire crossbreed
attributes.tag: age
attributes.value: 40 days
attributes.tag: dev_stage
attributes.value: weaning
attributes.tag: collected_by
attributes.value: Deping Song
attributes.tag: disease
attributes.value: PCV2-infected
attributes.tag: collection_date
attributes.value: missing
attributes.tag: geo_loc_name
attributes.value: missing
attributes.tag: host
attributes.value: Sus scrofa
attributes.tag: isolation_source
attributes.value: bronchoalveolar lavage
attributes.tag: lat_lon
attributes.value: missing
attributes.tag: BioSampleModel
attributes.value: Metagenome or environmental