- What is A2 Milk?
A2 milk comes from cows that produce only the A2 variant of beta-casein protein, which makes up 30% of milk protein. This milk may be easier for humans to digest, but scientific evidence supporting health claims is limited. - Breeds and A2 Genetics
Breeds like Jersey, Guernsey, Normande, and Brown Swiss naturally have higher percentages of the A2 gene compared to Holsteins. - Testing Your Herd
- Genomic testing can identify A1/A2 status for approximately $5 per animal.
- A2A2 animals bred together produce only A2A2 offspring.
- Transitioning to an A2 herd takes time and careful breeding decisions.
- Breeding Trends
Many A.I. studs now offer A2A2 bulls. The University of Minnesota’s research dairy herd has shown varying levels of A2A2 prevalence across different breeds. - Industry Insights
If A2 milk begins commanding a premium, selecting for A2A2 genetics could boost farm revenue. However, always prioritize high Net Merit bulls to maintain profitability. - Are There Additional Benefits?
Preliminary studies indicate possible production and longevity benefits in A2A2 cows, but more data is needed to confirm these advantages.
For farmers considering A2 milk production, weighing potential premiums against herd management costs and market demands is crucial.
