Genomic Testing

Make better replacement decisions earlier.

What is genomic testing, and who is it for?

Genomic testing uses an animal's DNA to estimate her genetic merit while she is still young. It helps dairy farmers decide which heifers to keep as replacements, breed from or move on.

Farmers have little performance information when calves are young. Genomic testing helps rank them earlier, so you can decide which animals are mated to sexed semen, conventional or beef — rapidly increasing genetic gain and production efficiency.

Who handles the processing?

Your samples are processed in a highly advanced, automated DNA laboratory with strict quality-control systems.
Samen NZ manages the process end to end, from sample kits through to results, so you get accurate, reliable data on your herd you can act on with confidence.

Automated lab

High-throughput DNA analysis with strict QC systems.

Automated lab

High-throughput DNA analysis with strict QC systems.

One point of contact

Samen NZ runs kits, submission and results.

Actionable data

Practical advice for your herd, not just a report.

How does genomic testing work?

A small tissue or hair sample is collected from each animal and matched to her ID. We send the samples to the lab for DNA analysis, and the results go through quality control and genetic evaluation before coming back to you with practical, actionable advice for your herd.

What are the benefits?

Earlier and more reliable ranking of young replacements than pedigree alone
Parentage confirmation where reference DNA is available
Better targeting of sexed semen to your strongest females
Earlier identification of A2, polled status and other relevant genetic conditions, depending on the test selected
Reduce  the number of  lower-ranked replacements created
Make Faster genetic gain and a clearer long-term breeding direction for your herd

Less guesswork. Better replacements. Faster genetic gain.

The process, step by step

1
We discuss your herd goals

Together we work out which animals should be tested and what you need the results to answer.

2
We supply the approved kits

Sample kits and clear collection instructions arrive ready to use.

3
Samples are collected

Each sample is matched carefully to its animal ID and returned to us.

4
We check and submit

We verify the batch and submit it to the laboratory for DNA analysis.

5
Quality control and evaluation

Results pass through QC and genomic evaluation before release.

6
We return your results with advice

Which animals to keep, breed from, mate to sexed semen, or consider for beef.

Select with Confidence

Introducing gNZI©
The Genomic New Zealand Index

Developed in cooperation with scientists from around the world the gNZI©, or Genomic New Zealand Index, is a reliable and accurate genomic prediction of NZAEL breeding worth, (BW) helping farmers select sires that will produce cows well-suited to the New Zealand dairy systems.

The gNZI is the most reliable tool for predicting the future performance of young sires’ offspring. gNZI has accurately predicted how international sires would rank once they get a daughter-proof here in New Zealand. Here are some examples of the gNZI in action:

A study outlining how gNZI is calculated has been published in a peer-reviewed scientific journal, the Journal of Animal Production Science.

View Study

gNZI is based on several traits that are important to New Zealand farmers, including moderate size, kg of milk solids, udders, somatic cell, body condition, fertility and survival. Enabling the industry access to high-value outcross genetics, the gNZI provides the New Zealand dairy industry with reliable predictions based on genomic data. With the gNZI dairy farmers can select with confidence and drive their herds forward.

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