CATDOLL : CATDOLL: Nutrition in Grass Carp

1. Nutrition in grass carp

Grass carp is also called grass carp. It has two colors, blue and white. It belongs to the Cyprinidae family. It has a long, slightly cylindrical body, a round belly without edges, and a flat tail. It has a wide and flat head, a round and blunt mouth, and the upper jaw is slightly longer than the lower jaw. Grass carp is one of the main freshwater farmed fish in my country. It is widely distributed and produced in both the north and the south. It is caught all year round, with the highest production from November to December.

It is sweet and warm in nature. It has the effects of calming the liver, dispelling wind, activating arthritis, and stopping malaria. It also has the function of warming the stomach. It is a health-preserving food that warms the middle and replenishes the deficiency. It is a top-grade freshwater fish. The ancients believed that the meat of grass carp is thick and loose, and it can cure asthenia and wind-deficiency headaches. Its head is especially good for steaming. Grass carp is rich in protein, fat, and contains a variety of vitamins. It also contains nucleic acids and zinc, which have the effects of strengthening the body and delaying aging. Grass carp is a large fish with thick meat, few bones, and delicious taste. Its meat is white and tender, with good toughness and high meat yield. Except for the black snakehead, other types of fish meat cannot compare with it. It is the main raw material for cooking fish fillets.

Eating grass carp heads regularly can increase intelligence and benefit the brain, but if you eat too much it can induce various sores and scabies, so you should eat it in moderation.

Guangdong folks use it with fried dough sticks, eggs, and pepper to steam it, which can improve eyesight.

2. What nutrients does freshwater fish contain?

Freshwater fish is a traditional aquaculture species in my country. It has a long history of breeding and a wide variety of species. It is an important aquatic economic species. It is not only delicious, but also very rich in nutrients: it contains a large amount of high-quality protein, highly unsaturated fatty acids, sugars, vitamins and inorganic salts. It is a high-protein, low-fat, low-calorie food. With the improvement of people's living standards and the change of consumption concepts, the demand for high-quality freshwater fish products is also increasing.

The protein content in freshwater fish is generally between 15% and 20%, with the highest content in snakehead fish, reaching 19.52%. Most freshwater fish have a high content of glutamic acid, which generally accounts for more than 2%-3% of the fresh weight of fish meat. The presence of glutamic acid not only makes fish meat delicious, but also glutamic acid is an important amino acid in the biochemical metabolism of brain tissue and participates in the synthesis of a variety of physiologically active substances. In addition, the arginine content in freshwater fish is also relatively high, especially in snakehead fish, bighead carp, bream, and yellow eel, with the contents of 2.9%, 1.7%, 1.7% and 1.4% of the fresh weight respectively. The fat content of freshwater fish is much lower than that of livestock and poultry meat, and is rich in various saturated and unsaturated fatty acids of C14-22, among which unsaturated fatty acids are the main ones, accounting for 47.39%-75.95%. Among the unsaturated fatty acids in freshwater fish, the monounsaturated fatty acid 18-carbon olefin acid (oleic acid) is the highest, with a content of 18.14%-38.54%. Recent studies have shown that monounsaturated fatty acids have the effects of lowering blood lipids and increasing platelet aggregation rate. In addition, increasing the content of unsaturated fatty acids, especially polyunsaturated fatty acids, is the future trend for people to improve their dietary structure. Among the fatty acids in freshwater fish muscle, the relative content of polyunsaturated fatty acids is between 9.84% and 20.57%, among which the content of C20∶5 (EPA) and C22∶6 (DHA), which have attracted more and more attention in recent years, is between 1.84% and 13.93%, indicating that freshwater fish are also a good source of EPA and DHA. Studies have found that EPA and DHA are essential fatty acids for human growth and development, and have significant therapeutic effects on human anti-thrombosis and anti-atherosclerosis, and can reduce the occurrence of cardiovascular diseases. Freshwater fish are also rich in special nutrients such as vitamins and inorganic salts, and the content is also higher than that of livestock and poultry meat, which is easily absorbed by the human body and is more suitable for patients, the elderly and children. Aquatic products also contain effective ingredients that have important physiological effects on the human body. For example, they contain many biological polysaccharides with special structures and relatively large molecular weights, which have anti-tumor effects, improve blood microcirculation, and increase the activity of brain cells.

3. Is fish nutritious?

Yes, but some fish are not very nutritious! Anyway, most of them are good for your health!

4. What nutrients does freshwater fish have?

It cannot be generalized. The protein content of fish is between 14% and 18%, and deep-sea fish is not higher than ordinary freshwater fish. However, the fat and water content of fish meat varies greatly. Fat-free marine fish such as haddock and cod have a fat content of only 0.1% to 0.4%, while fatty marine fish such as eel, herring and tuna have a fat content of up to 16% to 26%. The fat content of most fish is between these two. The fat of marine fish is rich in ω-3 long-chain unsaturated fatty acids, which is beneficial for lowering blood lipids. Compared with freshwater fish, marine fish has high content of trace elements such as iodine, selenium, and manganese, and the content of vitamins A and D in fish meat is also relatively high. However, some freshwater fish have special nutritional and health value, such as eel is rich in vitamin B2, and carp has the effects of diuresis, swelling and lactation.

5. Is freshwater silver pomfret a rare fish?

No, freshwater silver pomfret is a common edible fish. Some places call it Wuchang fish, which is actually a wrong term.

Freshwater silver pomfret (Colossoma brach ypomum), scientifically known as short-capped giant characin, is native to the Amazon River in South America and is a tropical and subtropical fish. Freshwater silver pomfret has the characteristics of omnivorous diet, fast growth, large size, few diseases, easy to catch, thick meat with few spines, delicious taste and rich nutrition.

It and the famous piranha both belong to the subfamily of Serraninae, but this family has more species and their habits are also different.