1934
After it calves
Cow milking started long long time ago before slavery.
The motto of The Novel Construction Initiative is 'Innovation in the pipeline industry'.
Trans Adriatic Pipeline
After having their first calf.
The easiest place to milk a goat is on a milking stand. See the related link
The Alaska Pipeline starts in Prudhoe Bay, Alaska and ends in Valdez, Alaska.
At Prudhoe Bay.
After it has had a calf, which is at around 2 years of age.
If you stop milking a cow, the udder will get really big, but will not explode. The milk will slowly diminish and the udder will get back to normal size after a while, and she will not be giving milk any more. Of course, to get her to start milking again, she will need to give birth to another calf. However, you can get her back milking again if you start milking before she completely dries up, but she will likely be producing less than initially.
There are typically two common methods of milking a cow: hand milking and machine milking. Hand milking involves manually squeezing the milk out of the cow's udder, while machine milking uses a milking machine to automate the milking process.
"It's milking time" or "they're milking cows."