EXPERTS AT SHORTENING THE GENERATION INTERVAL

Northeast Bovine Genetic Improvement Association

Perhaps for an explanation of the push toward a Kappa casein BB herd can be described ( as Italy with 80% of its milk made into cheese. ) by looking at the primary source of its sires, none of which are Kappa casein  AE, BE or EE.

http://www.semenzooitaly.it/en/sires/dairy/holstein/genomic?order=field_beta_caseina&sort=asc

See pages 4-5 in the Semen Zoo Catalog

http://www.semenzooitaly.it/en/sires/dairy/holstein/genomic?order=field_beta_caseina&sort=asc

See the article regarding Kappa casein E from the Bovine.

http://www.thebullvine.com/genetics/breeding-for-kappa-casein-to-increase-cheese-yield/