Many thanks to all who helped on my inquiry concerning A2 Protein Milk from Dexters. Its seems that Dexters do have the right genes for A2 Milk, but because of the cross-breeding and breeding back used to help save the breed over the least 30 years or so, there are also A1 genes wandering about through the various national herd bases. Thus to be sure, one would have to test each animal in one's herd and then breed accordingly. I wish I was still young enough to start again.