IWTL: Fitbit for cows?

[tknilsso]

Is there a technology available to equip dairy cows with measuring equipment such as Fitbit or Apple Watch, for monitoring blood pressure, blood oxygen levels, activity levels? This type of technology could be useful in environments where the caretaker wants to know what is currently happening with the animals. Some farmers have equipped the animals with a necklace that tracks movements and the number of times they went to the milking robot. However, that technology is purely descriptive, as it tells you what has happened, as it answers questions around: when did the individual cow go milking, how much did they walk around in a given time period and so forth. (the hashtag IWTL means I Want To Learn about)