About 30% of New Zealand dairy cows produce milk that contains only A2 beta-casein protein. These cows have two copies of the A2 allele that make up the beta-casein gene – A2/A2.
Some consumers are willing to pay more for A2/A2 milk because they believe it prevents the digestive problems they say they experience after drinking A1 milk. We do not endorse any of these claims.
If you want to set up a herd that produces A2/A2 milk, every animal in the herd must be A2/A2. You must also breed with bulls that are A2/A2.
All our bulls have been genetically tested for their A1 and A2 status.
Choose individual A2/A2 bulls from our Alpha list, or use our A2/A2 Holstein-Friesian or KiwiCross Premier Sires teams.
A2/A2 genomically selected bull teams are ideal if your breeding objective is to go A2/A2. Breed them with A2/A2 cows to get heifers that will produce A2/A2 milk.