Grape Days 2026: AI Adoption and Vineyard Research Insights
Generative AI in the workplace, trials in the field, and industry-relevant research took centre stage at this year’s Grape Days events in Central Otago, Hawke’s Bay and Marlborough.
The Switch tail trimmer is not only ergonomically designed to cows’ tails but also reduce the risk of repetitive strain injury in users.
Any dairy farmer who has taken a smack in the face from a dung-encrusted cow’s tail on a frosty morning will know the feeling and wonder how to stop it happening again.
With tail docking banned since October 2018, tail trimming has become more popular. However, frustrations still abound as traditional clippers are not particularly suited to removing dags or matted hair. Firstly, because these were probably designed for removing wool from a sheep’s back; secondly, because they are quite heavy.
Lisa Newman, a farmer’s daughter from New Plymouth and a student at Massey University, was very familiar with the problem. So she set out to design a dedicated trimmer that was suited to the conformation of the cow and also friendly for the operator.
Extensive initial research within the dairy industry, which also involved speaking with veterinarians and animal care specialists, confirmed the need. But she also went on to look at a wide range of animal sizes, alongside shed design and working environments.
Newman’s design, Switch, is the only device that is ergonomically designed to trim cows’ tails – as well as reduce the risk of repetitive strain injury in users. Currently a design concept, it is at a stage where discussions with potential manufacturers regarding commercialisation are happening. It was also an entrant in the Fieldays Innovation Awards and recently took out a James Dyson design award.
Featuring clipper blades that mimic the profile of a cow’s tail, so trimming more area each pass than a traditional flat trimmer. With the outer blade oscillating over an inner fixed blade, there is reduced risk of injury to the animal and the user.
Power is provided by an 18 volt/1.5Ah lithium-ion battery that testing suggests should have a 2-hour run time. Weighing in at 1.5kg, that weight is counterbalanced to take away the potential for RSI. Meanwhile, the cutting head is inclined at 40 degrees to keep the user’s wrist in a more natural position.
The on/off switch is situated on the top face of the unit, allowing users to use the device in any position that feels more comfortable.
“Regular tail trimming helps promote better animal health and well being by keeping the animals’ cleaner at the back end and especially around the udder and teats,” Newman explains.
“It also helps reduce the risk of an animal from losing a part of its tail, as blood vessels become constricted by dried faecal matter and can result in self-docking.”
She says Switch is effective and easy to use.
“I also hope it will encourage farmers to move to tail trimming, rather than continue with the illegal practice of tail docking.”
Testing confirms H5 bird flu in a single northern giant petrel, found dead on a remote Cape Palliser beach in the Wairarapa, says Dr Mary van Andel, the Ministry for Primary Industries' (MPI) Chief Veterinary Officer.
"What's for dinner?" may sound like a simple question, but for many Kiwi parents, answering it has become a job in itself.
Fifty Eight years ago, on the 16th of August 1968, August Claas, the founder of the harvesting company and father of Helmut Claas, personally presented a Claas Senator combine harvester to Scottish farmer John Steven.
New Zealand consumers are paying more for beef mince than ever before, with the average retail price now sitting above $24 per kilogram, according to Rabobank.
State farmer Pamu has delivered its strongest operating result on record.
Four years since it was first detected in New Zealand, researchers and growers now know much more about management of maize pest fall armyworm (FAW).

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