The Livestock Breed Ontology (LBO) is a controlled vocabulary for the unambiguous description of breeds. Its utility include proper identification of inherited variation sources in genetics/genomic studies.

• @BioPortal/NCBO (Archive)
• @EMBL/EBI (Search | Download)
• @Github (OBO)
• @AnimalGenome.ORG (Tree view on AmiGO)

• Animal QTLdb at Iowa State University

• FAO - International domestic livestock resources information
• Infrastructure of Domestic Animal Resources (Chinese)
• Livestock Heritage Breeds
• Breeds of Livestock
• Oklahoma State University - Breeds of Livestock
• Wikipedia - List of cattle breeds
• Wikipedia - List of pig breeds
• Wikipedia - List of chicken breeds
• Wikipedia - List of sheep breeds
• Wikipedia - List of horse breeds
• South Africa - Cattle International