The researchers explain that when cows are in a cheery mood, they stretch out their necks, as if being groomed, and their ears hang low. "Heart rate variability was higher when cattle were spoken to directly, indicating they were enjoying themselves."Īnd as other studies have confirmed, happy cows produce better milk. "Our study suggests that live talking is more relaxing for our animals than a recording of a human voice," said Annika Lange, an author on the study. They published their findings in the journal Frontiers in Psychology. It comes from researchers at the University of Veterinary Medicine in Vienna and the Johannes Kepler University of Linz, Austria, who compared the vital signs of 28 cows as they were petted while listening to a live human voice, and those same cows being petted while they heard merely a recording. In the torrent of news this week, one line especially pierced me: "Interactions may be less positive when they become artificial."
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