R534 Beta Casein Simple (A1 Free)


Six proteins in milk are responsible for about 90% of the proteins present in milk (Alfa S1 casein, Alfa S2 casein, Beta casein, Kappa casein, Alpha lactalbumin and Beta lactoglobulin). Four of these are caseins, two of them are whey-proteins. The test for Beta casein detects the most common genetic variants in Beta casein.

Test specific information

Within our organization two versions of the test for Beta casein are available. We offer a simple (test code R534) and advanced version (test code R535).

Within the advanced version, seven variants of Beta casein are identified. These types of Beta casein are A1, A2, A3, B, C, I and H2.

In international genotyping for Beta casein, a simplified version of the test is used. This particular test is based on a straightforward identification using one mutation. This mutation is based in codon 67 and results in the groups A1 and A2.


This test provides information on one or more milk components. The genetic constitution of an animal remains the same during life.

Turnaround time

The Turnaround Time (TAT) depends on various factors, such as the shipment time of your sample to the test location, the test method(s) and whether the tests are performed completely or partially by a Partner Lab or Patent owner.

The TAT of tests performed at our facilities is normally 10 working days after receipt of the sample at the testing laboratory (VHL, VHP or Certagen). For tests performed by a Partner Laboratory (so-called "partner lab test") or patent owner, the TAT is at least 20 working days after receipt of your sample. Because the shipment time to our Partner Labs or patent owner may vary due to factors we cannot influence, the mentioned 20 working days are therefore an estimate.

Sometimes it is necessary to re-run your sample. We call this a retest. In that case, the TAT will of course be extended.

Location of disease or trait

Milk is present in the udder.

Breed dependence

For this test samples from all breeds are accepted.

Sample type

For this DNA test we accept the following materials: Hair, Semen, Blood EDTA, Blood Heparin, Tissue. Please contact Dr. Van Haeringen Laboratorium if you wish to submit other material as listed.


Milk quality is based on many genetic factors. For each factor, a separate test result will be returned.


Various genetic factors influencing milk quality are inherited in a dominant or recessive mode. Milk quality is influenced by a large number of genetic factors.

Severity of Disease


Code R534

Beta Casein Simple (A1 Free)

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