A cow produces between 40 and 150 liters (10-45 gallons) of saliva per day.
A cow produces between 40 and 150 liters (10-45 gallons) of saliva per day, depending on the feed she receives. Roughage has the effect of increasing rumination activity, where as concentrates reduce it.
How Much Saliva Does a Body Produce a Day?
About 3 liters a day!!!