The black fish is the common name of the snakehead. Snakehead fish belongs to the order Perciformes and Snakehead. It is the most widely distributed and most productive species among the Snakehead fishes. It is also known as mullet, raw fish, fortune fish, snake fish, fire head fish, black snakehead and so on.
The black fish has a fierce temperament and lives on the bottom of the camp. It is a carnivorous fish and likes to live in shallow waters with luxuriant aquatic plants. Black fish meat is delicious and nutritious, and is loved by consumers. It is a fish with high economic value; it can remove blood stasis and regenerate, nourish and nourish, replenish blood, promote wound healing, and has high medicinal value.
Life habits:
Snakehead snakehead is a freshwater benthic fish. It usually inhabits waters with aquatic plants or silt bottoms. It is found in rivers, lakes, reservoirs, ponds, paddy fields and other waters. It has strong adaptability to environmental factors in the water body. Especially it has strong adaptability to dissolved oxygen, water temperature and water quality. When there is a lack of oxygen in the water body, the auxiliary breathing organs in the upper gill cavity can be used to breathe on the water surface. The snakehead can survive in the water temperature of 0~41℃, and 16~30℃ is the optimal temperature for the growth, development and reproduction of the snakehead. When the water temperature in spring returns to above 8°C, it usually moves in the upper-middle layer of water; in summer, the snakehead is mostly active in the upper layer of water; when the temperature is lower than 6°C in autumn, the snakehead swims slowly and often lurks in the upper layer of water. The depths of the water layer; in winter when the water temperature is close to 0 ℃, it is buried in silt to survive the winter. Due to the strong jumping ability of the snakehead, it often happens to escape. The sultry weather, the impact of rain, and the rising water will cause the snakehead to escape.
Nutritional value:
The snakehead snakehead is rich in nutrition and protein. The snakehead snakehead muscle contains 17.63% crude protein (higher than the four major freshwater fishes in China), and the amino acid content in the muscle accounts for 77.07% of the total, including 7 human body types. The total amount of essential amino acids is 29.73%, and the 4 kinds of delicious amino acids (aspartic acid, glutamic acid, alanine, and glycine) are 31.01%, which may be the reason why snakehead is delicious. The content of crude protein in snakehead muscle is 17.63% (male) and 18.89% (female). It contains 18 kinds of amino acids, of which 8 are essential amino acids for humans. The content of flavor amino acids is relatively high. The amino acid evaluation model found that, The composition of essential amino acids in each part of the female and male snakehead snakehead is relatively complete, with 53 points for male muscles and 50 points for female muscles. The protein content (16.94%) in the muscle of snakehead snakehead is higher than that in mandarin fish, grass carp, silver carp, bighead carp, soft-shelled turtle, hairtail, prawns and eggs.
Fat, snakehead snakehead is a low-fat food with delicious meat, which is favored by many consumers and is especially suitable for nourishing and nourishing. The current study found that the fat content in the snakehead snakehead is low, and the effect of the nutrient level in the breeding on the growth rate of the snakehead snakehead quality is: protein>inorganic salt>sugar>fat, and the fat performance is the lowest.
Minerals, snakehead muscles and bones are rich in essential K, Mg, Ca, zn, Fe, Cu. Mn, Ni, Cr and other trace elements. The content of Fe and Zn two trace elements found in snakehead is significantly higher than that of carp, silver carp, bighead carp and rainbow trout. The bones of the snakehead snakehead are rich in minerals, especially K, Mg and ca are the basic elements for the human body to maintain normal physiological functions and muscle excitement. The rich content of such minerals may also be related to the anti-inflammatory and anti-fatigue effects of the snakehead snakehead.
