Living habits of yaks? Features?

Yak is cold and warm, compact, with short neck and small ears and small skin thickness and surface area. The function of sweat glands is extremely underdeveloped, and the length and thickness of the coat vary with the seasons. The skirt hair on the side and lower part is dense and long, which can keep out the cold and damp, and is suitable for cold climate. The chest is big, the heart is developed, the trachea is short and thick, the red blood cells are big, the hemoglobin content is high, the breathing and pulse are fast, and it adapts to the plateau hypoxia environment.

Wide mouth, flexible lips, can eat short grass; The hoof is firm and padded, gentle and responsive, and the established conditioned reflex is relatively solid and easy to adjust; Strong disease resistance, strong anti-stress ability, strong sociability, wide appetite, hunger and thirst tolerance, and extensive feeding and management conditions.

Yak can adapt to altitude of 3200 ~ 4800 meters, atmospheric pressure of 68420.85~55435.28Pa, oxygen partial pressure14505.43 ~1679.438+0pa, and oxygen content14.9% ~. 

Its chest is developed and its cardiopulmonary development index is large, so as to protect the chest, abdominal viscera, external genitalia, breasts and joints from freezing. According to the measurement, yak will eat 27.86 1.42kg of fresh grass every day when grazing for 9.5h hours on the meadow grassland at an altitude of 3,800 meters.

Yaks also have the ability to find their way. They are good at taking steep slopes and dangerous roads, snow-capped mountains and swamps, swimming across rivers and rapids, avoiding traps and choosing roads, which can be used as guides for tourists.

Yak is full of treasures, and Tibetans cannot live without it. People drink yak milk, eat yak meat and burn yak dung. Its wool can be used to make clothes or tents, and its skin is a good tanning material.

It can be used not only for farming, but also as a means of transportation on the plateau to provide local herdsmen with necessities such as milk, meat, wool, labor and fuel. It is an important source of life and economy for herders on the Qinghai-Tibet Plateau, and it is also an indispensable animal species in the local animal husbandry economy.

Yak, as an "all-round" livestock, is an extremely valuable gene pool in heredity, which is of social and economic significance to human beings.

Extended data:

Wild yaks live on the hillside all the year round and like to eat soft sticks and grass. They chew with their teeth in summer and lick with their tongues in winter. Bison's prickly tongue is very powerful and it is also one of its weapons. They mainly come out for food at night and early morning. The food is mainly alpine desert plants such as Stipa, Carex, Cyperus and Artemisia. During the day, they enter the barren hills and cliffs, or stand ruminating, or lie down to rest and sleep.

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