The most remarkable thing about the farm where the Canadian Foodgrains Bank celebration was held was the robotic milking machine for the dairy herd. I had heard of this in the area, but had never seen it in action.
There are disadvantages to this system, especially the cost, but the savings in labour, the increase in comfort for the cows, and the improved monitoring of individual cows are all big advantages. The farmer doesn't even have to be in the barn; the machine will call you if there's a problem. The cows (in most setups) can enter whenever they wish, so the number of times they're milked usually goes up a little, leaving them more comfortable. And the detailed records of each cow means that you can tell immediately if a particular cow is not producing as she usually does, usually a sign of a problem worth checking. The health of the herd can be improved as a result.
I was really impressed with how well this works, and particularly interested in the benefits for the cows themselves. Farming keeps changing!