A1 and A2 Beta-Casein Testing

Beta-casein makes up about 30% of the protein in cows (bovine) milk.  In recent years, there has been growing interest in testing for A1 and A2 type beta-casein in milk and dairy products, and Analytica has testing methods that have been refined over a number of years.

Analytica’s testing is used by farmers and dairy manufacturers with an interest in producing milk or dairy products that meet particular specifications for beta-casein content.  It covers the following applications:

Farm testing

  • Identifying the genetic makeup of dairy cattle for beta-casein based on DNA testing, or analysis of the beta-casein in liquid milk samples from individual milking animals.
  • Measuring the amount of A1 type beta-casein in bulk milk, to monitor the milk being produced by a particular herd or group of animals.

Manufactured dairy product testing

  • Measuring the amount of A1 type beta-casein in manufactured milk products, milk powders, and other dairy products.


A note on intellectual property related to beta-casein

A range of intellectual property is registered or under application around the production, sale, and use of products made with milk from cows that are free of A1 beta-casein protein.  The provision of beta-casein testing and results by Analytica does not provide access to any intellectual property rights owned by various parties independent of Analytica.

More information about research on beta-casein variants and bioactive fragments generated from their digestion can be found at www.betacasein.net.

How to take and submit a sample

How to take and submit a sample

Raw Milk
A representative sample of 50-100 mL of milk is required.  Please keep chilled if being delivered immediately, or freeze and send chilled.

Dairy Products
An unopened sachet or consumer package is required, with details of batch and product description to be shown clearly on the outside.

Download and complete our Analysis Request Form either in PDF format or as a Word document, and send it along with your samples to:

Analytica Laboratories Ltd
Ruakura Research Centre
10 Bisley Road,
Hamilton 3240 
New Zealand

Get Analysis Request Forms

Don’t forget to label each sample container with a unique name or code, matching the Sample Identification that you write on the Analysis Request Form. We will invoice you when we report your results. 

To send samples from overseas, please see our instructions and import permits.

Analytica Laboratories


P: +64 7 974 4740
E: sales@analytica.co.nz

Ruakura Research Centre,
10 Bisley Road, Private Bag 3345,
Hamilton 3240
New Zealand


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