Table 1.

List of attributes present in the AnimalMetagenome DB.

Attributes	Definition
Project ID	Project ID from the NCBI BioProject database.
Study accession	Study ID from the NCBI SRA database.
Experiment ID	Metagenomic library ID from the NCBI SRA database.
PubMed ID	Article’s pubmed ID, if available.
Project title	Title of the project.
Creation date	Date when the project was created.
Project description	Project’s abstract.
Sample ID	Sample ID from the NCBI BioSample database.
Sample site	Origin of the sample based on the host body site.
Sex	Physical sex of the host.
Age	Age of the host at the time of sampling.
Collection date	Date of sample collection.
Condition	The information about the host’s experimental treatments.
Pheotype	Phenotype of the host.
Breed	Breed of animal.
Instrument	Sequencing platform.
Library strategy	Strategies for building metagenomic libraries.
Total size	Total number of reads present in the library.
Total bases	Total number of base pairs present in the library.
Species	Animal’s species name.
Geographic location	Location (country) where the sample was collected.
Latitude	Geographic coordinate of latitude in decimal degrees where the sample was collected.
Longitude	Geographic coordinate of longitude in decimal degrees where the sample was collected.
Study purpose	To classify the study purpose of the project based on the Animal QTLdb database. The classification of the bioproject type was made as to facilitate project clustering.