Rivastigmine (sold under the trade name Exelon) is a parasympathomimetic or cholinergic agent for the treatment of mild to moderate dementia of the Alzheimer's type and dementia due to Parkinson's disease.
Quick Answer. According to the University of Washington, cows sleep for approximately 3.9 hours per day, meaning that they spend about 16.9 percent of the day sleeping. Adult humans sleep for approximately 8 hours per day, which represents 33.3 percent of the day. Human infants sleep approximately 16 hours per day.
Cows are normally milked 2 times per day, however some high producing herds are milked 3 times per day. Normally cows are milked at about 6 am in the morning and again at about 5 pm in the evening. Milking time takes about 5 minutes per cow but depends on the type of machine and the amount of milk the cow is producing.