Home / C. Nature, biology and evolution / Part DIR
"Cows need to be milked."
a cow only produces milk after giving birth, and only produces so much milk because she was bred for it. The "need" to milk is created by the industry itself: it makes the cow pregnant, separates the calf, who would be the one drinking the milk, and then presents milking as a favor. It isn't help; it's a problem production created and the profit it makes from it.
Short answer
Cows only give milk after giving birth, like any mammal. For that, they're made pregnant again and again, usually by artificial insemination, and the calves are usually separated from them soon after birth. They produce so much because they were bred for it. Milking solves a problem that production itself created. Helping the cow would be not putting her in that situation.
For children
Cows, like human mothers, only make milk when they have a baby. The milk is for the calf. On dairy farms, the cow is made pregnant on purpose, the calf is taken away and people keep the milk. Saying we "help" the cow by taking her milk forgets that the milk was for her baby.
"If the cow needs to be milked, why can't the calf drink the milk?"
Como pode aparecer
"If you don't milk her, the cow suffers."
"We're helping the cow."
"The cow gives milk; it isn't taken by force."
"Vegans don't know cows explode if they aren't milked."
"Are you going to leave the cow with a full udder?"
"Milk and eggs don't kill anyone." (which is B7)
The strongest version
"If you don't milk her, the cow suffers. We're helping the cow."
Strongest version (steelman):
- P1Dairy cows produce large amounts of milk.
- P2If the milk isn't removed, the udder becomes full, painful and prone to inflammation.
- P3Removing the milk relieves that suffering.
- CSo milking is care for the cow, not exploitation.
P2 and P3 have some truth: a dairy cow who is already producing needs to be milked. The problem is the question the argument doesn't ask: why is she producing?
The argument is valid. Its soundness fails at P1, which presents as natural a production caused by induced pregnancy and genetic selection.
Full answer
- a
Reconstruction and diagnosis
The argument starts in the middle of the story:
What the argument shows What came before The cow has a full udder She was made pregnant to produce milk The milk has to be removed The calf, who would drink it, was separated She produces a lot of milk She was genetically selected to produce far more than a calf needs - b
Where the argument breaks
1. There's no milk without pregnancy.
Cows are mammals: they only produce milk after giving birth. To keep production going, the industry has to make them pregnant again and again.
2. The milk belongs to the calf.
In dairy production, calves are usually separated from their mothers in the first hours or first day of life. Early separation is standard practice in much of the industry, precisely so the milk can be sold.
3. We created the overproduction.
The amount of milk modern dairy cows produce results from genetic selection to produce far more than a calf would drink. It's the same pattern as broiler chickens (C9): the animal's body was shaped by production.
4. Production has costs for the cow.
The European scientific authority lists mastitis, mobility problems and restricted movement among the main welfare consequences for dairy cows.
5. The end is slaughter.
When production drops, the dairy cow is sent to slaughter, and the male calves, who won't produce milk, often become veal (B7).
- c
Data and sources
Source What it says Note EFSA, *Welfare of dairy cows* (2023) Identifies mobility problems, mastitis, restricted movement and metabolic disorders among the main welfare consequences Official EU scientific opinion RSPCA Australia, calf separation Standard industry practice is to separate the calf from its mother within 24 hours of birth An animal welfare organization that doesn't oppose drinking milk - d
The strongest counter-reply: the cows that already exist need milking
The most serious version grants all of this, but says that, as long as there are dairy cows in production, milking them is necessary, and that stopping drinking milk wouldn't help those cows.
- e
Why the counter-reply doesn't reach the conclusion
Milking today doesn't require buying milk tomorrow.
Consumption funds new pregnancies, new separated calves and new cows in production.
A cow who isn't made pregnant again stops producing.
The "need" ends when the cycle isn't renewed.
Helping existing cows is different from exploiting new ones.
Sanctuaries also milk cows who arrive lactating, and they don't sell the milk.
Reasoning errors
Logical
Is the form valid?
Omitted cause
Appeal to nature
Epistemological
Does the evidence support it?
Not knowing the biology
Moral
Is the criterion coherent?
Exploitation presented as care
Biases
Functional categorization
The cow is seen as a "dairy cow", not as a mother
Extrapolations
The principle being tested is: "if we create a need, meeting it is a favor".
If it applied to…Any induced dependenceTap to see
Whoever creates the problem would be a benefactor for relieving it
No one accepts this
If it applied to…Laying hensTap to see
Collecting the eggs would be a favor to a bird bred to lay almost one a day
Same pattern
If it applied to…Breastfeeding womenTap to see
Taking a mother's milk to sell would be helping her
Absurd
Contradictions
No one thinks women produce milk without having had children.
Which shows the goal is the milk, not the cow.
The care ends when the profit ends.
What the argument gets right
What is true
It's true that a lactating cow needs her milk removed, and that leaving her with a full udder would cause pain. People who look after dairy cows often care about them sincerely, and good milking prevents real suffering.
But
But that need isn't natural or inevitable: it's created with each new induced pregnancy. Real care would be to stop putting cows in that situation.
Connections
Usually comes before
Usually comes after