Nominated Parents and the Parentage Process

Nominated Parents and the Parentage Process

When your nominated parents don’t qualify in DNA testing, it can feel a bit frustrating at first but there’s a clear process in place to sort it out.

Let’s walk through what actually happens.

So, your nominated parents didn’t match – what now?

When you submit a DNA request and results are received, the first thing we do is test the calf against the nominated sire and dam provided. This is always the quickest way to confirm parentage, because you’re giving us your best guess based on your records.

If they do verify – great, you’re done.

If they don’t verify, it simply means the calf isn’t genetically compatible with one or both of those animals. It doesn’t mean anything has gone wrong with the test – it just means we need to dig a bit deeper.

Next step: we check any extra parents you’ve listed

If you’ve included a parent list – extra sires or dams you think could be possibilities – we’ll run those next.

This is really helpful in situations like:

  • Multi-sire paddocks

  • AI programs where there’s a backup bull

  • Any joining where more than one parent is possible

The more options you give us here, the faster we can usually land on the right answer.

A very common example is AI with a backup bull. You might nominate the AI sire, but if the backup bull was running and ends up being the actual sire, the verification process  will pick that up when we test your list.

Then we look through your own animals

If we still don’t get a match, we expand the search to all genotyped animals in your ownership.

At this point, we’re essentially asking: “Is there anything in your herd that fits genetically, even if it wasn’t nominated?”

This step often picks up cases where:

  • Records were a bit off

  • Animals were moved between groups

  • A sire was present that wasn’t originally considered

Still no match? We go wider

If nothing turns up in your herd, we then run the calf against the full database of genotyped animals.

This is the most thorough step, comparing your calf to all eligible animals that have been DNA tested. It can take a bit longer, but it gives us the best chance of finding the correct parents—especially in more complex situations like:

  • Purchased animals with unclear background

  • Embryo transfer mix-ups

  • Historic recording gaps

What you’ll get back from us

If your nominated parent doesn’t qualify, we won’t just leave you guessing.

We’ll come back to you with:

  • Which nominated parent didn’t match

  • Any verified parent we’ve identified through the process

From there, we’ll ask you to confirm whether that result makes sense based on your knowledge of your program.

The key thing to remember

This process is designed to help you get it right.

Mismatches happen – it could be as simple as a wrong recording, a missed joining detail, or just the realities of running cattle. What matters is that, by the end of the process, you’ve got accurate, verified parentage you can rely on.

How you can help speed things up

A couple of simple tips:

  • Include any possible sires or dams in your parent list

  • Make sure all potential parents are DNA tested where possible

  • Nominate your sire and dam if known

At the end of the day, even if your nominated parents don’t qualify, the system is built to work through the options and get you to the right answer. And once it’s verified, you can be confident your records and your genetics are spot on.

Once Parentage is verified you will receive your results and you can complete your registration form to get your WBVs!

IMPORTANT NOTICE - Terms & Conditions


It is a condition of use of this database that you accept these terms and conditions. 

It is important that you appreciate when accessing the Australian Wagyu Association Limited (AWA) database (which may be hosted on an external website) that the information contained on the AWA database, including but not limited to pedigree, DNA information, Wagyu Breeding Values (WBVs) and Index values (together called Database Information), is based on data supplied by AWA members and/or third parties. 

Whilst sincere effort is made to ensure the Database Information is accurate and complete, to the extent permitted by law, AWA, its officers and employees, shall not be responsible for its use or interpretation, and you use the Database Information at your own risk. Please be aware of the following limitations of the Database Information.  

Regarding WBVs and Index values, it is important to appreciate, and you need to be aware that: 

  • WBVs are derived using genetic evaluation technology developed for the AWA, using information contained within the AWA database and parameters derived from it.
  • WBVs are estimates of genetic potential of individual animals and may change with addition of new data or with new parameters.
  • WBVs are genetic merit estimates only and may not reflect the raw animal phenotype.
  • WBVs can only be directly compared to other WBVs calculated in the same AWA genetic analysis.

Regarding pedigree and DNA testing results submitted to the AWA, it is important to appreciate, and you need to be aware that: 

  • Animals whose registration identifiers start with PED are Pedigree Recorded Animals. What this means is that the details which AWA used to register the animal were obtained from a Recognised Wagyu Registry Organisation – in other words a Wagyu breed association based outside of Australia. AWA has not independently verified the information with respect to the animal or the details recorded about the animal. You should read AWA’s by-laws which set out details regarding the definition of a Pedigree Recorded Animal. 
  • Pedigree and DNA data submitted and supplied to AWA may have errors in it which cannot be detected without further DNA testing. 
  • Technology may have advanced since a particular test was undertaken so that genetic issues or inaccuracies which were previously not detectable are now able to be detected by current testing technology (i.e. if the animal was tested again with current technology). 
  • AWA estimates that less than 1% of the pedigree entries, ownership or breeding details in the AWA Herdbook may have errors or which may be misleading. For this reason, users ought to consider if they need to obtain independent testing of the relevant animal (if possible) to ensure that the data is accurate. 

Regarding prefectural content, it is important to appreciate, and you need to be aware that: 

  • Prefectural content is based on the estimation of prefectural origin from Japanese breeding records of 201 foundation sires and 168 foundation dams. As genotype-based parent verification is not used in Japan, and full Japanese registration certificates are not available for all foundation animals, exact prefectural composition for these sires and dams cannot be validated. 
  • The calculation of prefectural content for Australian Herdbook animals relies on the accuracy of pedigree records and DNA samples provided by AWA members.   

Regarding DNA testing and genetic condition results submitted to the AWA, it is important to appreciate, and you need to be aware that: 

  • As genetic testing results are provided by independent DNA testing laboratories at the request of AWA members, AWA relies solely on the accuracy of the reporting of genetic testing as completed by the laboratories. 
  • AWA uses GeneProb software to calculate the likelihood of pedigree animals being a carrier of genetic conditions.  This likelihood is an estimate based on the available genetic testing results. 

If you consider that you do not understand or appreciate the nature and/or implications of the data provided on this website or the WBVs of a particular animal, then AWA strongly recommends that you seek expert advice.  Note there is substantial technical information and articles on the Wagyu website to assist our members. 

AWA’s liability for any loss or damage, consequential or otherwise, suffered or incurred by you or your related business, arising directly or indirectly from your use of Database Information, to the extent permitted by law, is limited to AWA providing you with a refund for the fees paid for the service (if any), or AWA re-performing the service, where possible, at the election of AWA.  

AWA administers this database in good faith to support AWA members and the industry. AWA does not represent or warrant that the animals recorded in this database, or animals breed from them, will achieve any particular genetic or phenotype performance.


THIS DISCLAIMER HAS BEEN UPDATED AS OF 03/02/2026, PLEASE ENSURE YOU HAVE READ IT IN DETAIL