A better future – animals bred for resistance.


The future of sustainable parasite management needs to include non-chemical methods. Selective breeding helps to prevent anthelmintic resistance and ensures all treatments remain effective.

The PhenR service provides farmers with valuable data that allows ranking and selection of breeding animals within and across mobs that are naturally resistant to parasites. This lessens the reliance on worming treatments naturally and maintains animal performance in a sustainable, cost-effective manner.

Collaborative programme

We work closely with sheep breeders and agricultural research organisations such as AgResearch in New Zealand. The WormFEC certification has been developed over many years in collaboration with AgResearch and a group of elite breeders. It enables breeders to show on a scale the degree of their animals’ parasite resistance. PhenR is about breeding animals to require less drenching to slow the development of anthelmintic resistance.

When should PhenR testing be done?

Ideally, when the animals are between 7-9 months of age as they will express (show) a high level of genetic heritability at this age. However, younger animals that weigh over 25 kg can be tested if required before breeding decisions are made.

How is breeding for resistance with PhenR done?

Genetic testing with PhenR is quicker and easier than ever before. Only one sample per animal is required. New EID technology and FECPAKG2 makes the service more efficient and effective.

Why is prevention of anthelmintic resistance so important?

Good for breeders

PhenR increases the value of rams by showing that their offspring will be naturally resistant to parasites reducing drench use on properties.

Good for farmers

Naturally resistant animals save farmers time by not needing to drench as many animals and money on their drench bill. There are PhenR clients who do not need to drench their flock at all. In an industry reliant on drench and where drench is a major farm cost, this is an amazing achievement.

PhenR also enables farmers to identify and cull susceptible animals – the main culprits contaminating your pasture.

Good for sustainability

The best way to prevent anthelmintic resistance is to breed animals that do not need drenching. This minimises the spread of drench resistance and promotes long term sustainability.

Good for supply chain integrity

Major supermarket chains such as Sainsbury’s in the United Kingdom are increasingly concerned about how the rise of drench resistance is going to impact on the long-term viability of their farm suppliers. Breeding for resistance with PhenR is the ultimate solution.

Good for consumers

Consumers are taking an ever more proactive stance against purchasing products containing chemicals. Breeding for resistance helps to reduce chemical use in red meat and enables products to be sold as chemical free, increasing their value.

Parasite resistance is a highly heritable trait.
- AgResearch WormFEC Manual

Contact us to talk about how PhenR can help you breed animals resistant to parasites.


Our associates

  • Sainsbury's
  • Alliance Group
  • AFFCO
  • University of Otago
  • 1000 Minds
  • Sirona
  • Bristol University
  • SCOPS
  • Silver Fern Farms
  • Universiteit Ghent
  • AgResearch
  • Donaghys
  • Innovis

New Zealand, Techion
Invermay Agriculture Centre
Block A, 176 Puddle Alley, Mosgiel, 9092, New Zealand
0800 332 725
+64 3 477 7555
mail@techiongroup.co.nz

UK and Europe, Techion
Peithyll Centre, Capel Dewi, Aberystwyth, SY23 3HU, Wales
+44 0 1970 821 918
uk@techiongroup.com

Australia, Dawbuts Animal Health
9 Mitchell Street, Camden, New South Wales, 2570, Australia
+61 2 4655 6464
admin@dawbuts.com