Every so often we get asked if our cows produce A1 or A2 milk, and the answer is: both!
At Creamery Creek, our herd is made up entirely of registered Holstein cows. Through genomic testing, we know that some of our cows carry the A2A2 gene, while most are A1A2. That means the milk we collect is a natural blend of both protein types.
What does that mean?
A1 and A2 refer to two different types of beta-casein, a milk protein. Most Holstein herds in the U.S. are a mix of A1A2 and A2A2 cows. The difference is subtle, it doesn’t change the flavor or quality of the milk, but some people say they digest A2 milk a little more comfortably.
Why we test
We use genomic testing as part of our herd management program. It tells us a lot about our cows, from health traits to production potential, and yes, it includes whether they’re A1A2 or A2A2. While we don’t separate milk based on those results right now, it’s something we track for future breeding decisions.
Our focus
Regardless of milk protein type, our priority is always cow comfort, good feed, and careful handling. That’s what creates milk that’s rich, flavorful, and high in quality, A1 or A2 aside.
Curious about your experience, tell me!
XOXO,
Louisa
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