A study that surveyed more than 500 dairy farmers found that naming cows had a significant impact on milk yields. Those farmers who called their cows by name got around 2,105 gallons (7,968 liters) of milk over the cows' 10-month lactation cycle, compared to around 2,029 gallons (7,680 liters) reported by those who didn't name their cows. Scientists believe that addressing the cows by name might have a calming effect on the animals, reducing the production of the stress hormone cortisol, which can impede milk production.
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Key Facts In This Video
The average cow can produce about 100 glasses of milk each day. 00:41
Cows don't have four stomachs—they have one stomach with four compartments. 01:06
Holstein cows produce more milk per day than any other type of cow. 01:51