Is it normal for a calf to chew a hundred bites in fifty days?

Normal. Rumination is one of the normal digestive activities of cattle, and it is also one of the signs of the health of cattle. Normal rumination occurs after feeding, and more than 60 calves are normal for 50 days, so 100 calves are normal. Rumination, commonly known as backward chewing, refers to some animals returning semi-digested food from the stomach to the mouth to chew again after eating for a period of time.