Why does a cow give milk? Detailed answer

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Why does a cow give milk? Detailed answer

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Why does a cow give milk?

Since ancient times, people have been using milk for food and specially bred special animals for this. We drink mostly cow's milk, but in Spain they prefer sheep's.

Many desert tribes use camel milk, in Egypt buffalo milk, in Peru llamas, people in many countries love goat milk.

Milk is a fluid produced in the mammary glands of female mammals to feed their young after birth. It replaces the blood that nourishes the baby in the mother's body until it is born. Indeed, in composition it is very similar to blood, with the exception of blood cells and pigment.

Depending on the type of animal that gives milk, its quality varies greatly. But it always contains fats, protein, carbohydrates and minerals. Goat's milk contains twice as much fat as cow's milk, and deer's even five times more!

Milk contains the salts necessary for the baby's body. The faster the growth of the newborn, the more salts in mother's milk. A calf doubles its weight in 47 days, but an infant does it in 180. This is why cow's milk is so rich in protein and salts that it needs to be diluted before being given to a newborn baby.

But the milk of one type of animal is very different. It depends, of course, on the breed and individual structure. Secondly, from the time between milkings. The last milk from each milking is richer in fats. Thus, if a cow is not fully milked, then the next time her milk will be fatter.

Since green plants are the main source of nutrition for a cow, summer milk is usually more nutritious than winter milk, since in winter it cannot be on pasture. About 110 grams of solid nutrients are found in every liter of milk. These are fat oil, casein, milk sugar and minerals.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What is made of oil?

Crude oil is one of the Earth's most important minerals. During the refining process, oil is converted into more than 2000 useful products. Let us give just a few examples of this. The most famous products of oil refining are fuels: gasoline, kerosene, diesel fuel and fuel oils. Liquefied gas is produced from oil for domestic needs.

Petroleum-derived substances are needed to make the food we eat and the clothes we wear. Petroleum-derived plastic wraps are used to package a large number of products. Synthetic fibers are produced from oil, which are part of fabrics. More than a thousand lubricating oils are produced from petroleum. And lubricant is so necessary in everything, from watches and parts of mechanisms, ending with locomotives and electric generators.

Oil is needed for asphalt pavement of roads and roofs of buildings. Oil-derived wax is the material for candles, wax paper and cellophane. Petroleum products are used to make carbon paper, dyes for printing books, newspapers, and synthetic detergents. Synthetic ammonia, produced from petroleum, is a fertilizer in agriculture. Oil-based pesticides kill insect pests and weeds.

Oil is used to produce petrochemicals. They are raw materials for other chemical compounds, such as plastics and synthetic fibers. Synthetic foam rubber, plastic tiles, films and detergents are also made from petroleum products.

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