Extended data
economic value
Turtle is a precious economic animal, which is not only delicious in meat, rich in nutrition and high in protein, but also can be used as medicine in all parts of the body, and has the effects of nourishing yin and clearing away heat, calming the liver and replenishing essence, dispersing stagnation and removing blood stasis. According to folklore, turtle blood can also treat anemia, lung disease, heart disease, asthma, neurasthenia and so on.
In the 1990s, there appeared a "turtle-breeding fever" in China, which continued to heat up and the selling price was surprisingly high. But from 65438 to 0997, the "turtle fever" suddenly cooled down and fell into a trough. The main reasons are the impact of imported soft-shelled turtle, soft-shelled turtle smuggling, rapid national development and full stock.
At present, the market value and value are basically synchronized, which is in line with the value scale. In addition, the current market value of soft-shelled turtle has been recognized by consumers. As long as you have the breeding conditions and really master the breeding technology, you can improve the survival rate, improve management appropriately, actively promote supporting breeding and vigorously develop deep-processed turtle products. There is still a good market for breeding soft-shelled turtles.
nutritive value
The meat of soft-shelled turtle has the delicious taste of chicken, deer, cow, sheep and pig, so it is known as "five flavors of good meat". In its body, there is no carcinogenic factor. The tortoise also appreciated.
Turtle is rich in animal glue, keratin, copper, vitamin D and other nutrients, which can enhance human disease resistance and regulate human endocrine function. It is also a nourishing product for improving the quality of breast milk and enhancing the immunity and intelligence of infants.
Living habits
It can be simply summarized as "three joys and three fears", that is, like cleanliness and fear of dirt, like sunshine and fear of wind, and like quietness and fear of fright. In the natural environment, turtles like to inhabit rivers, lakes, reservoirs, ponds and other clean waters. On calm days, they often lie on the sunny shore to bask in the sun (commonly known as basking in the back).
Using ultraviolet rays in the sun to kill pathogenic bacteria on the body surface, promote the healing of injured body surface, raise body temperature and promote food digestion by drying the back. Turtle is very timid, sensitive to the sound of the surrounding environment and the movement of objects, and dives into the water at the slightest sign of trouble.
Soft-shelled turtles are fierce and aggressive, and bullying among groups is very common. When food is scarce, they will eat the same kind. Lung respiration is the main growth period.
When the water temperature is lower than 15℃, the soft-shelled turtle dives into the mud at the bottom of the pond and begins to hibernate, and breathes by the gill tissue in the throat and other auxiliary respiratory organs. The hibernation period of soft-shelled turtle is from mid-October to mid-April in Hangjiahu area 165438+/kloc-0.
Baidu encyclopedia-tortoise