Dairy farming

People have raised animals for milk for a long time.

Long ago, farmers used their hands to milk cows.

Now, many farms use big machines to help. These machines can milk cows in a large group.

Some machines even move in a big circle. This helps the farmer work much faster.

Farmers also use cold tools to keep milk fresh. This helps the milk stay good for us to drink.

Dairy farming is the work of making milk.

People have done this for a very long time. Some evidence shows it began in northwestern Anatolia. This happened around the seventh millennium BC.

In the past, farmers milked cows by hand. This was done on small farms. Many farmers filled barrels with milk each morning. They used wagons to take milk to towns.

New tools changed how this work is done. Early machines were small buckets that sat on the floor. Later, the milking pipeline was made. This used pipes to move milk to a tank. This helped farmers carry less heavy weight.

Today, many farms use milking parlors. In a herringbone parlor, cows stand in rows. In a rotary parlor, cows stand on a large circle.

The circle turns like a slow merry-go-round. This lets many cows be milked at once. Some farms even use robots. These robotic systems can milk cows automatically.

Farmers must also keep milk fresh. They use cooling tools to stop bacteria from growing. This keeps the milk good for people to drink.

Dairy farming is the work of raising animals to produce milk for people.

This milk is turned into many products like cheese and butter. It is a very old way of life for many people. Some evidence shows it began in northwestern Anatolia during the seventh millennium BC.

Other parts of the world joined in later. For example, it appeared in eastern Europe in the sixth millennium BC. It reached Africa in the fifth millennium BC and Britain by the fourth millennium BC.

In the past, milking was a very different job.

Most farmers milked their cows by hand on small farms. They would often fill barrels with milk every morning. Then, they used wagons to bring that milk to town markets. In the United States, a single person could only milk about twelve cows a day. This was hard work that took a lot of time and effort.

New inventions changed how milk is collected from animals. Early machines were just buckets that sat on the floor. Later, the milking pipeline was created in the late 20th century. This used pipes to pull milk up from the cow. The milk then flows by gravity into a storage tank. This helped farmers because they did not have to carry heavy buckets anymore.

Modern farms often use special buildings called milking parlors.

In a herringbone parlor, cows stand in rows to be milked. In a rotary parlor, the cows stand on a large, turning platform. This platform moves like a slow merry-go-round.

Some farms even use robotic milking systems. These robots can milk cows automatically without a person. This allows the cows to choose when they want to be milked.

Keeping milk fresh is another very important part of farming.

Farmers use cooling technology to keep the milk from spoiling. This helps stop the growth of bacteria that can make milk go bad. In 2017, the world produced about 827,884,000 tonnes of milk.

Large countries like India, the United States, China, and New Zealand are major producers. While farming is helpful, people also work to manage waste and protect the environment.

Dairy farming is a specific class of agriculture focused on the long-term production of milk.

This milk is processed into various dairy products for sale. Processing can occur directly on the farm or at a specialized dairy plant. While any mammal can produce milk, most commercial farms focus on a single species. In developed nations, these farms typically raise high-producing dairy cows. However, other species are also used in commercial dairy farming. These include goats, sheep, water buffaloes, and camels. In Italy, donkey dairies are becoming more popular to create alternative milk for infants.

The history of this practice stretches back to the early Neolithic era.

The earliest evidence of using domesticated cows for dairy production appears in northwestern Anatolia during the seventh millennium BC. Dairy farming then spread to other regions over several centuries. It reached eastern Europe in the sixth millennium BC and Africa in the fifth millennium BC. By the fourth millennium BC, it was present in Britain and Northern Europe. For much of this history, milking was a small-scale task performed by hand.

On small farms, milkers often worked in barns where cattle were tied by the neck. An individual milker in the United States might only manage to milk twelve cows in a single day.

Technological innovations have transformed the mechanics of milk collection.

Early 20th-century machines were simple extensions of the traditional milking pail. One version, the Surge hanging milker, used a leather strap called a surcingle around the cow's lower back. This allowed the cow to move naturally while the device hung underneath. Later, the milk pipeline was introduced in the late 20th century. This system uses a permanent milk-return pipe and a vacuum pipe encircling the barn. The vacuum pulls milk into the pipe, which then flows by gravity into a storage tank. This eliminated the need for farmers to carry heavy, manual buckets.

Modern facilities often utilize specialized milking parlors to maximize efficiency.

These structures allow cows to be milked much like an assembly line. In herringbone and parallel parlors, the milker processes one row of cows at a time. A herringbone parlor is noted for its durability, stability, and improved safety for both humans and animals. Another common design is the rotary parlor, which functions like a rotating platform.

In a rotary system, cows are loaded onto a moving circle one at a time. A worker pre-dips the teats to prevent bacteria, and another attaches the milking machine. As the platform completes its rotation, the unit detaches automatically. These systems allow for a high number of cows to be milked per operator.

Advanced automation has introduced even more sophisticated methods of management.

To prevent over-milking, which can be harmful to an animal's udder, automatic take-off systems were developed. These systems remove the milking device once the milk flow reaches a specific level. In the 1980s and 1990s, robotic milking systems were introduced, primarily in the European Union.

These robotic units allow cows a high degree of autonomy. A cow can choose her own milking time during the day. As she enters the unit, her collar is scanned to record production data, and she is fed concentrates.

Preserving the milk is as vital as collecting it.

Milk must be kept cool to reduce spoiling caused by humidity and bacterial growth. In the late 19th century, the arrival of refrigeration technology changed the industry. This included innovations like direct expansion refrigeration and the plate heat exchanger. Before these technologies, farmers used windmills and well pumps to move cold underground water into cooling vats. These methods allowed milk to be stored longer before being transported to markets in cities.

Global dairy production is a massive industry with significant economic and environmental footprints.

According to the FAO, approximately 827,884,000 tonnes of milk were produced in 2017. Major dairy industries exist in countries such as India, the United States, China, and New Zealand. However, the industry faces several modern challenges and criticisms. There is substantial concern regarding waste output, including manure disposal and methane gas from air pollution. The industry's role in agricultural greenhouse gas emissions is also a major topic of discussion. Additionally, animal welfare activists have raised concerns regarding the health of cows in intensive farming systems.