This Niu Jiao. What?

Niu Jiao produces sound waves and Cleisthenes sounds by vibrating the vocal cords in the throat.

Niu Jiao is a way of communication for cattle, which can express their emotions, needs, warnings and other information. Niu Jiao's principle is that cows produce sound waves by vibrating the vocal cords of the larynx, and then form different tones and volumes by adjusting the oral cavity and nasal cavity. The frequency and intensity of Niu Jiao are related to the age, sex and environment of cattle, such as yellow cattle, buffalo and yak. , and calls are usually Cleisthenes.

There are many ways to express the call of cattle, such as the call between cattle and calves, which is usually high and low, expressing the affection and concern of cattle and calves. When cows are hungry or short of water, their cries are usually urgent and frequent. Expressing their hunger and hunger for food, their cries are not only a way of communication between cattle, but also an important clue for human beings to understand their psychological and physiological state.

The role of Niu Jiao

Niu Jiao can express their joys and sorrows. For example, when a cow feels comfortable, satisfied or intimate, it will make a low and soft cry. When the cow feels pain, fear or anger, it will make a sharp and loud cry; When a cow feels lonely, bored or looking for a mate, it will make a long, continuous cry. Niu Jiao can enhance the affection between cows, and also attract human attention and concern.

Niu Jiao can adjust their physiological state, for example, when Niu Jiao, it will consume their energy and water, reduce their weight and body temperature, and adapt to different climates and seasons; When a cow encounters danger or enemies, it will make a hoarse and powerful cry to show vigilance and deterrence. Niu Jiao can help cows adapt to the environment, and can also remind humans or other cows to take corresponding measures.