Pioneering organic dairying with robotics – The story of Neville and Louise Williams

July 2026. Article and Images by: Rick Majoor

Nestled in the lush foothills of Maungatautari Mountain - a renowned ecological sanctuary in New Zealand’s North Island - lies a farm defined by independent thinkers and a passion for pushing boundaries.

For Neville and Louise Williams, who have shared their life and business for over 43 years, dairying is a continuous evolution. Today, their fully certified organic farm demonstrates that automated milking and strict organic farming principles are a perfect match.

The history of the Williams' farm dates to the 1920s, originally settled by returning soldiers after the First World War. As a third-generation farmer on the land, Neville and Louise have seen the operation transform completely. Like many, they started with conventional farming, eventually moving into high-input, intensive practices in the 1990s. This involved milking at a high stocking rate and feeding supplements like palm kernel and other by-products.

However, the intensive system was impacting their pastures and soils. Driven by a desire to look after the land and grow better grass, they shifted to a low-input biological system after purchasing a neighbouring property, and eventually achieved full organic certification by 2012. "We realised over time that we could do better by not doing what everybody else was doing," Louise reflects. The shift to organic not only improved the land but meant they were also paid a premium for their sustainable efforts.

A fundamental pillar of organic dairying is the complete elimination of antibiotics and conventional fertilisers. While the environmental premiums are rewarding, the transition initially brought significant animal health challenges, particularly concerning mastitis.

Before robotics, the couple managed a once-a-day milking system to reduce the walking distance for cows traveling from the newly acquired land. However, milking once a day with no antibiotic safety net placed immense pressure on their mastitis management, as high somatic cell counts became incredibly time-consuming to identify and treat within organic regulations.

The installation of a four Lely robotic milking system 11 years ago became the ultimate solution. The sheer volume of data provided by the robots - tracking somatic cell counts, milk temperatures, and rumination - allowed Neville and Louise to proactively manage cow health naturally on the phone or behind their computer. "We could see that the information you get from the robots... would be a real help to be able to manage the cows organically and create a very efficient herd," Louise explains.

The precision data empowered them to retain and breed with only the strongest, healthiest animals. The efficiency gains were staggering: today, a streamlined herd of 263 cows produces the exact same volume of milk that previously required a herd of 360 cows.

Another myth the Williams family easily dismantled is the assumption that cows need to be pushed or incentivised by external devices. Despite operating on hilly terrain with some paddocks located up to two kilometres away from the shed, their cows navigate the farm on their own.

"They're relaxed, they're happy, and they just do their own thing," says Louise. The cows are naturally drawn to the dairy by positive rewards: the relief of udder pressure, a ration of meal at calving time and a lick of organic blackstrap molasses, the comforting thermals of the shed, and the Lely Luna cow brush. Because the cows operate on their own schedule and are never forced in a traditional holding yard, the herd’s temperament is exceptionally calm.

The holistic, low-stress environment created by combining organic farming with robotic milking has profoundly impacted the herd's longevity. The Williams maintain a low replacement rate of 18%, and they have some cows over 13-year-old in the herd still producing high-quality milk with low somatic cell counts. Furthermore, their mating process relies 100% on the robots’ heat detection data. They regularly achieve 6-8% empty rate over a four-week period of AB, then use bulls to finish, with zero veterinary interventions.

The transition has also revolutionised their labour model. Instead of struggling to find traditional staff willing to endure the tedious drudgery of putting cups on cows, they now rely on backpackers who appreciate the variety and flexible nature of the work on their organic robot farm. 

While Neville and Louise are still drafting their long-term succession plan, they are thoroughly enjoying the current chapter of their farming career. They have developed a farming system that is profitable, sustainable and resilient.

To any traditional dairy farmer sitting on the fence about robotics, their advice is clear: don't discount it. "It's definitely a doable thing and it's a good thing," says Louise. "You've got to do something in life that spins your wheels, don't you?".

• Location: Foothills of Sanctuary Mountain Maungatautari, about 15 km from Cambridge, New Zealand.

   

• Herd Size: Approximately 263 high-performing cows. They are managed under strict organic protocols.

   

• Organic Practices: Fully certified organic for over 14 years. The farm utilises biological farming methods without conventional fertilisers or antibiotics.

   

• Cow Health and Efficiency: Utilising robot data to manage mastitis naturally has allowed the farm to optimise production. They now produce the same milk output with nearly 100 fewer cows than their previous system.

   

• Reproduction: 100% reliance on Lely robotic data for mating. They refularly achieve a low empty rate empty rate without the use of CIDRs (Controlled Internal Drug Release devices) or veterinary interventions.
  
  

*Results have not been verified by Lely or an independent party. Your results may vary.