A1 and A2 Beta-Casein Testing - Sheep & Goats

It is common for farmers or manufacturers who are using milk from sheep or goats to ask for beta-casein testing.  Analytica’s testing methods are specific to bovine (cattle) beta-casein, and are not designed to detect caprine (goat) or ovine (sheep) beta-casein.

If a sample of milk or dairy product from another species is tested and produces a detectable presence of A1 beta-casein, it indicates that there is likely to be some contamination of the sample with bovine (cattle) beta-casein rather than that there is A1 beta-casein from the sheep or goats.

The genetic mutation which has occurred in cattle, and gives rise to A1 type-beta-casein in bovine milk, has not occurred in other species. Those with an interest in beta-casein in other species may wish to carry out a review of the scientific literature that describes those proteins, and any mutations that have taken place in them.  Analytica has the ability to assist with R&D projects including development of new or improved methods for protein analysis, and any enquiries about how this can be applied to meet particular customer needs are welcomed.

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 3123,
Hamilton 3214
New Zealand



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