The genome for the cow (Bos taurus). The bovine genome is similar in size towards genomes of people also mammals, containing around 3 billion DNA base pairs. The variety of cattle selected for initial sequencing was Hereford, which is used in beef manufacturing. Sequencing began in December 2003 and a primary draft ended up being completed in October 2004. Sequencing of extra cattle types, like the Holstein, Angus, Jersey, Limousin, Norwegian Red and Brahman, enables tracking of DNA differences when considering these breeds to aid inside advancement of traits for better beef and milk production and, as with every non-human genomes, to model human being infection.