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Primal Diet / Re: List of A1 and A2 Milk
« on: January 21, 2013, 04:38:23 pm »
Pure bred African Cattle produce only A2/A2 milk. Sciences' best guess: The mutation producing A1 milk occurred 2,000 - 10,000 years ago in Europe.
Your question suggests that A1/A1, A1/A2, and A2/A2 milk is a matter of breed, which it is not. (Some Holstein produce A2/A2 and some Guernsey produce A1/A1.) Statistically however, breeds such as Kerry Jersey, & Guernsey are more likely to produce A2 milk and Holstein are more likely to produce A1.
DNA testing is the only way to determine which whether a cow will produce A1/A1, A1/A2, or A2/A2 milk.
Your question suggests that A1/A1, A1/A2, and A2/A2 milk is a matter of breed, which it is not. (Some Holstein produce A2/A2 and some Guernsey produce A1/A1.) Statistically however, breeds such as Kerry Jersey, & Guernsey are more likely to produce A2 milk and Holstein are more likely to produce A1.
DNA testing is the only way to determine which whether a cow will produce A1/A1, A1/A2, or A2/A2 milk.