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8 answers

Female cows that have never lactated are heifers... virgin cows. They are pretty much of no use to a dairy farmer. Once the cow has a calf, they produce milk for their baby. They have no biological clock to tell them that four months, or however long a baby cow suckles, is all the time a cow should lactate. Their body tells them to keep going until it is no longer needed.

Milking cows simulates a baby cow suckling off of its mother. The mother cow does not know when to stop, so she keeps producing milk.

Tiring for the mother cow, I could imagine!

2006-10-10 13:33:18 · answer #1 · answered by Leafy 6 · 0 0

Dairy cows do not lactate until after their first calf is born. As long as the calf is nursing or somebody is milking them everyday, they will continue to lactate.

2006-10-10 20:28:48 · answer #2 · answered by kc_warpaint 5 · 1 0

you are either a boy or a woman who has not had children ... cows only produce milk after they give birth and lactate for a while due to the constant milking they keep producing and its normal to t a point but not bad for the cow..

2006-10-10 20:35:18 · answer #3 · answered by bluedanube69 5 · 0 0

once ANY mammal has given birth, they will continue to lactate as long as the milk is being used, or until they become pregnant again. At least until they are too old for it....

2006-10-10 20:29:40 · answer #4 · answered by kveldulfgondlir 5 · 0 0

Hi. Milk production eventually goes down and the cow is "freshened" by mating and calving again.

2006-10-10 20:29:40 · answer #5 · answered by Cirric 7 · 1 0

No they only lactate when they are pregnant and need to

farmers give them hormones to lactate year round

2006-10-10 20:28:33 · answer #6 · answered by lilrebel9631 2 · 0 1

I don't know, but will tell you what I saw on a dairy farm in California: Lots of dead new born calves.

2006-10-10 20:34:52 · answer #7 · answered by beez 7 · 0 1

ur face

2006-10-10 21:43:44 · answer #8 · answered by Ari C 2 · 0 1

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