Nobody invented milk from cows. Milk is a natural substance that has existed for millennia that is used as a form of nutrition for young growing animals. Humans have just manipulated the cow through artificial selection so that she can produce more milk than what her offspring requires.
you have to have a calf in order to milk a cow
A cow is a cow. Milk is milk. Quantity and butterfat content will vary with each breed. Black angus is a breed. Drink Up!
who came up with the idea of NAFTA
Drink up the cow's milk while you still have it; you can wait for a day or two.
Someone in the middle east like 10,000 years ago. There is no specific person up to this date. They would have seen calves suckling and then made the connection with their own babies and milk, and then someone tasted the cow's milk and found that it was good!
A cow will never dry up if you keep milking her. That's the bottom line.
1100mg of caesin present in 1 liter of cow's milk
There is no cow. Someone made it up because they thought it was funny.
Once warmed, cow's milk should be consumed within 2 hours to ensure it remains safe to drink.
The cow that gives the least milk is the cow that is unable to feed her calf despite her efforts and good intentions. The calf would end up needing to be bottle fed and/or the cow injected with Oxytocin to encourage milk let-down. If the Oxytocin does nothing, then it's time to ship the cow. As for breed, Charolais and some lines of Herefords are the poorest milk producers.
for example if you have a cow that produces lots of milk, you would select that cow to breed so its calves would produce a lot of milk when they grow up
You mean udder. They can, but whether they will or not is up to them.