Carassius auratus is also called Xitou, River Carassius auratus, Carassius auratus seeds, Carassius auratus and so on. The names of different regions will be different. It is one of the common freshwater fish in China. It has strong reproductive ability, strong disease resistance, fast growth speed and low requirements for water temperature and quality, so it is easy to breed and is an important cultured fish. They mainly feed on plants and like to walk in groups. When eating, you can braise in soy sauce and make soup, with tender meat and high nutritional value.
Carassius auratus is an omnivorous fish that lives in fresh water. The living standard of crucian carp belongs to the bottom fish. Under normal circumstances, they all swim, feed and inhabit underwater. When the temperature and water temperature are high, they will also swim in the lower and upper layers of the water for food.
Morphological characteristics of crucian carp
1, body type: Carassius auratus is small, with flat sides, long body, about 15-20cm, streamlined body and small scales.
2. Body color: the back of crucian carp is dull, the abdomen is white, the color is light, and the fin color is grayish white. The body color of crucian carp varies from place of origin, mostly black and metallic.
3. Head: Carassius auratus has a small head, a blunt kiss and no fish whiskers on its head. The eyes are wide and convex, and the front and rear nostrils are adjacent and slightly in front. The mouth is tilted forward, and the mandible is slightly shorter than the maxilla. Lip developed, unnecessary, branchial foramen large, lateral, lower end below the angle of anterior branchial operculum.