A Better Future, With Animals Bred for Resistance
Futureproof your animals to meet growing demand for chemical-free produce. Breeding for resistance helps create sustainable parasite management, preventing anthelmintic resistance and ensuring treatments remain effective.
PhenR provides farmers with valuable data enabling you to identify breeding animals that are naturally resistant to parasites. This lessens reliance on worming treatments and maintains performance.
Why is Breeding Parasite Resistant Sheep Important?
Only 5% of parasite infestations are treated using drench, while the other 95% remain on pasture. Save time and money and breed naturally resistant animals.
- Reduce the number of times animals require treatment
- Improve the value of your stock
- Produce naturally resistant animals that are less likely to contribute to resistance
- Breed genetically superior livestock
How PhenR Works
The PhenR service is a simple five step process used by leading breeder and industry researchers. Breed superior, parasite-resistant animals with PhenR.
Pahiwi Rams
“PhenR is a great tool in the parasite management box. With increasing farm costs, reducing reliance on drenches needs to come from not only improved management but a genetic approach also.”
Rob Tennent - Waipukurau
Recognising Our Breeders Driving Parasite Resistance
Across New Zealand, more than 120 breeders use PhenR to make meaningful progress in managing parasite resistance and flock resilience. These breeders aren’t just improving their own operations - they’re adding value to farms nationwide.
We’re proud to recognise some of our PhenR clients who are committed to breeding productive, parasite-resistant sheep that thrive under real Kiwi farm conditions.
Hinenui Genetics
From Gisborne’s East Coast, Hinenui Genetics brings you three generations of breeding expertise in Coopworth, Romworth, Romney and ShedX sheep.
Kelso Genetics
Backed by science and proven on farm, Kelso Genetics breeds robust sheep focused on ewe efficiency, animal health and overall productivity.
Helping Breed Parasite Resistant Sheep
We work with leading sheep breeders and research organisations such as New Zealand’s AgResearch. 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.
Join the breeders who are naturally reducing the effects of parasites on their property.