Moving to Robotic Milking

Plan the barn around cow traffic

Robots only work if cows walk to them willingly, so barn layout matters as much as the box itself. Decide whether cows will move freely between lying, feeding and milking areas or pass through gates that steer them towards the robot, and ask the makers of the Lely Astronaut A5, GEA DairyRobot R9500 and BouMatic Robotics RS21 how their systems are usually set up for each approach. Leave room for a waiting area, a separation pen for cows needing attention and a clear route for fetching stragglers. Writing for Ohio State University Extension, Maurice Eastridge advises visiting farms at different stages of adoption and working closely with the dealer and nutritionist before installation, while the concrete can still change.

Train heifers before they calve

Training can start well before the robot milks its first cow. Penn State Extension, reporting University of Guelph research published by Brasier and colleagues in 2025, says heifers trained in the robot three times a day for 10 to 14 days before calving entered more easily, let down milk better, made more voluntary visits and needed fetching less often than untrained animals. The Penn State article accepts that three sessions a day is a heavy workload and suggests once-daily sessions for a few days before calving as a practical start. It also describes a mock-up of the box, sometimes called a phantom robot, which lets heifers get used to the space without tying up a working unit.

Expect a month of disruption at start-up

The start-up weeks are the hardest part of the change. Eastridge cites a Canadian study of 217 producers in which 42 per cent trained animals to the system before the first milking, usually over about seven days in groups of fewer than 20, and he reports that adapting a herd took around 30 days whether or not the cows had been pre-trained. In the study Eastridge cites, about 2 per cent of cows were culled for failing to adapt, with a range of 0 to 40 per cent between herds. Roster extra people around the clock for that first month, keep the old parlour usable if you can, and agree in advance which cows will leave the herd if they will not settle.

New jobs replace fixed milking shifts

Once the herd settles, the working day revolves around data and exceptions rather than milking times. Someone has to read the robot's reports each morning, deal with cows that have not visited, clear alarms at night, check cleaning cycles and arrange maintenance with the dealer. Those tasks suit people who are as comfortable with screens as with stock, so talk to your team early about who wants which role, and budget for the maker's training. Feeding changes too, because concentrate offered in the box helps draw cows in, and Eastridge recommends working with a nutritionist on that balance. Keep a written log of interventions through the first year so you can see whether the workload is easing.

Sources and further reading

• Transitioning of Herds to Automatic Milking Systems — The Ohio State University Extension (Buckeye Dairy News).
  Extension specialist's digest of start-up research: pre-training, time for a herd to adapt, culling and working with advisers.
• Training Heifers to Robots: Does it Pay Off? — Penn State Extension.
  2026 summary of University of Guelph research on training heifers in the robot before calving, with lighter-touch options.

Common questions

Do robotic milking systems work for grazing herds?

They can, but grazing adds distance between pasture and robot, so cow traffic, water points, paddock layout and walking time all need planning. Ask makers for references from grazing farms with herd sizes and walking distances similar to yours before you commit.

Can robotic milking work with a small herd?

It can, but the cost of each box is spread over fewer cows, so check how many animals one unit is sized for and whether a partly used box still pays. Ask makers for references from farms of similar size, and how they cope with breakdowns without a second unit.