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
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
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
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.