Pig testis Expressed Sequence Tags (PtEST) database is the collection of ESTs exclusive from the testis of purebred Duroc testis. The main goal of PtEST database is to serve with annotated ESTs for the study on boar fertility, one of the most important traits for economic animals.

Pig testis Expressed Sequence Tags database is organized into these subject databases:

	Expession Sequence Tag (EST) Database
	Unigene Database