Premium Ezicalve Hereford Bulls – Proven Genetics for Calving Ease
Trusted by NZ dairy and beef farmers for over 30 years
At Riverton Ezicalve Herefords, we’ve spent over 30 years perfecting one goal — breeding bulls you can trust for safe, profitable heifer calving.
Our herd is renowned for low birthweights, excellent calving ease, and quiet temperament, without sacrificing growth or carcass quality.
Most of our bulls are homozygous polled, meaning their calves are naturally polled — no dehorning required. We make extensive use of genomics to improve breeding accuracy and are investing in solutions for coat colour and markings, ensuring our genetics stay at the forefront of the industry.
Semen Available Year-Round
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Yearling and two-year-old bulls ready for heifer or cow mating
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Annual on-farm sale each September
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Semen available: Riverton Celtic 22 159 – EBVs | $10/straw (min. 100 straws)
Why Choose Riverton Ezicalve Herefords?
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Calving Ease: Minimise complications, protect your heifers, and produce healthy calves.
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Growth Potential: Achieve faster-growing calves and heavier weaning weights.
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Fertility & Longevity: Bulls with high conception rates that keep performing season after season.
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Maternal Strength: Hereford cows are known for excellent milk production and maternal instincts, improving calf survival and health.
By selecting Ezicalve genetics, you’re investing in reliable, proven performance that builds a more profitable, sustainable herd.
Secure Your Ezicalve Genetics Today
Our clients trust us to breed the best bulls for their herds — and we take that responsibility seriously. Get in touch to discuss your needs, request EBVs, or arrange a visit to view the bulls in person.
Testimonials
We’ve been getting bulls from Mike and Cath at Riverton Hereford Stud since 2017. The bulls are outstanding, their calves are born easily, grow well, and are always in high demand.
We use the yearling bulls over our rising 2 year old heifers for spring mating. The 2 and 3 year olds are put over the cows after three weeks of AI. This system has worked extremely well for us as it provides a reliable income stream in July and August, with very few calves ever ending up on the bobby truck.
Mike and Cath are fantastic to work with, genuine people who are excellent communicators and always a pleasure to deal with.
Ian and Narelle Groube, Otorohanga