An investigation in New Zealand concluded what several ethology experts have observed: that cows produce more milk when they are calm. In the oceanic country, the AgResearch and DairyNZ organizations applied a “personality test” that yielded several results. The NZ Herald article revealed the study carried out by Neave and others that was published in recent days in the Journal of Dairy Science, in which they applied the "personality test" that is applied to other animals from farm However, as the article noted, personality tests for dairy cattle were often time-consuming and impractical for ranchers. (Read: Taming cattle can increase milk and meat production) With that in mind, the study used 5 shorter behavioral tests, twice, on 87 dairy cows. The researchers then looked at whether they were related to other behaviors, such as grazing and producing milk. The study, which you can consult at this link, investigated whether personality traits of grazing dairy cattle, scored on ...
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