organism: Mus musculus
attributes.tag: host_subject_id
attributes.value: mouse_24
attributes.tag: strain
attributes.value: C57BL/6N
attributes.tag: age
attributes.value: 18 months
attributes.tag: collection_date
attributes.value: 2024-05
attributes.tag: geo_loc_name
attributes.value: China: Jiangsu, Yancheng
attributes.tag: sex
attributes.value: male
attributes.tag: tissue
attributes.value: rectal feces
attributes.tag: treatment
attributes.value: 30% caloric restriction
attributes.tag: replicate
attributes.value: replicate=biological replication 7
attributes.tag: BioSampleModel
attributes.value: Model organism or animal