One of the organs of the fish body. Specific gravity regulator of the fish body adapted to life in the water. It is generally in the shape of a round sac. Located in front of the body cavity, under the vertebrae, filled with air. There is a short section of airway connecting with the esophagus. In a few fish, the airway is degraded and the swim bladder and esophagus are separated. Some fish use their swim bladders to hear and breathe, while others use their swim bladders to hear and breathe. After catching a big fish, the angler will pick up the head of the fish out of the water and make it inhale, then the fish drift is full of air and difficult to sink, then drag it around and hover with it to make it fatigue, and it is difficult to get rid of the air in the fish's fat, then drag it close to the body with a plumbing net or hooks to fish for it [1].

Although the fish can still float upward by swinging its fins and tail, if it sinks too deep, this won't

Fish Fat

Fish Fat (2 pictures)

help.

The swim bladder, commonly known as the fish bladder, contains air that allows the fish to regulate the density of its body and rise or sink in the water. Most bony fish that live in the upper and middle layers of seawater have swim bladders. The swim bladder occupies about 5% of the body. Its shape can be ovoid, conical, heart-shaped, horseshoe-shaped, and so on. The swim bladder is filled with gases mainly oxygen, ammonia and carbon dioxide, with oxygen being the most abundant. Therefore, in an oxygen-deficient environment, the swim bladder can be used as an auxiliary respiratory organ to provide oxygen to the fish. The most important function of the swim bladder is to regulate the specific gravity of the fish's body by inflating and deflating, thus regulating the balance of water pressure inside and outside of the scleractinian's body and controlling the body's sinking and floating.

Schematic diagram of the position of swim bladder

Schematic diagram of the position of swim bladder

Compositional analysis

The swim bladder of the fish contains biomacromolecules of collagen proteins, whose main components are high-level collagen, mucopolysaccharides, and contains a variety of vitamins and calcium, zinc, iron, selenium and other trace elements. It is the raw material for human body to supplement and synthesize protein, and it is easy to be absorbed and utilized. It is stored in the form of aqueous solution in human tissues, thus improving the nutritional status and metabolism of the tissues.

Medicinal value and principle

It has been proved that collagen-rich foods can affect the physiological functions of certain specific tissues through the collagen-containing binding water, thus promoting growth and development, enhance disease resistance, and play a role in slowing down the aging process and the effectiveness of the resistance to cancer.

Marine ginseng - swim bladder

Marine ginseng - swim bladder

Modern Chinese medicine believes that swim bladder is sweet and flat, nourishes blood, stops bleeding, and replenishes the kidney and fixes essence.

The use of swim bladder with traditional Chinese medicine can treat peptic ulcer, tuberculosis, rheumatic heart disease, aplastic anemia and vasculitis. Recently, our medical workers also found that swim bladder can enhance the digestion and absorption function of the gastrointestinal tract, improve appetite, help prevent and control loss of appetite, anorexia, dyspepsia, abdominal distension, constipation, etc., and maintain normal secretion of glands, and prevent and control mental retardation, nerve conduction retardation, slow reaction, children's underdevelopment, maternal breast milk secretion, old age forgetfulness and insomnia, etc. Because swim bladder contains a large number of gum, and has the function of blood circulation, tonic blood, stopping blood circulation, and preventing blood poisoning. As swim bladder contains a lot of gelatin and has the functions of activating blood circulation, tonifying blood, stopping blood circulation, preventing cold and removing dampness, it can improve the immunity of the body.