Dairy cattle are usually able to produce milk for about 7-9 years, this may vary between each cow. Many factors are present to determine how long a cow can produce milk such as, genetic structure, longevity, birth weights of calves born by the cow, and conformation.
No, don't give them cow's milk.
200,000
Depends on the size of the glass...
No.
Meat and milk.
The average dairy cow can produce around 200,000 to 300,000 glasses of milk in its lifetime, depending on factors like breed, diet, and overall health. Given that one glass of milk is approximately 8 ounces, this translates to about 15,000 to 22,500 gallons of milk throughout the cow's productive years. The actual number can vary significantly based on the individual cow and farming practices.
just about 200,000 glasses
they give milk
yes!
evaporated milk
It depends on the breed of cow in question. A Holstein (dairy) cow will give more milk than a buffalo, but a Charolais (beef) cow will give less milk than a buffalo does. An Angus cow may give as much or slightly more milk than a buffalo cow will.
For as long as it lives, which is, for the average dairy cow, around 7 years.