"Carnivorous" black fish and grass carp which delicious? What food do you eat to grow and grow fast?

Black fish are ferocious and fertile, can glide on land, migrate to other waters in search of food, and can live out of water for as long as 3 days. So which is better, grass carp or grass carp? What kind of food do you eat to grow up and grow fast? It is learned from Master Wang, a black fish farmer, that blackfish is a fierce carnivorous fish, and its prey varies with the size of the fish. The main food of seedlings less than 3 cm in length is scratchy pods, cladocera and chironomid larvae. Seedlings less than 3-8 cm in length feed on aquatic insect larvae, tadpoles, shrimps, larvae, etc. Adults with a body length of more than 20 cm prey on a variety of small fish (crucian carp, meal strips, red-eyed trout, Loach and various juvenile fish) and frogs.

Which is better, black fish or grass carp?

Grass carp meat is more tender than black fish meat.

1. Grass carp is rich in unsaturated fatty acids, which is good for blood circulation and is a good food for cardiovascular patients.

2. Grass carp is rich in selenium, which not only has the effect of anti-aging and beauty, but also has a certain preventive and therapeutic effect on tumor.

3. For people who are thin and have no appetite, grass carp is tender but not greasy and can be appetizing and nourishing.

But the black fish taste delicious, very nutritious, eat black fish and anti-inflammatory effect on the wound.

1. Blackfish meat contains protein, fat, 18 kinds of amino acids, etc., as well as calcium, phosphorus, iron and a variety of vitamins essential to the human body.

2. It is suitable for people who are weak, hypoalbuminemia, spleen and stomach qi deficiency, malnutrition and anemia. Black fish is often regarded as a precious tonic by the people in Guangxi to promote milk and tonify blood.

3. Black fish has the effect of dispelling wind and treating chancre, tonifying spleen and replenishing qi, promoting water and reducing swelling, so there are often parturients, rheumatism patients and children with disease looking for snakehead fish as an auxiliary food therapy in the three northern areas.

The growing environment of black fish

1. Low-level fish: black fish are benthic fishes, which usually inhabit still water or micro-flow water with numerous aquatic plants and soft sediment, and are found in lakes, rivers, reservoirs, ponds and other waters, often diving in the bottom of the water, to swing their pectoral fins to maintain their balance.

2. Strong adaptability: black fish has strong adaptability to the changes of environmental factors in water, especially to hypoxia, water temperature and bad water quality. when the water body is anoxic, it can put its head out of the water and flatten the back. The head is long, the front is slightly flattened, and the rear is slightly raised. By means of the suprabranchial organ composed of bone fragments on the back of the first branchial arch and hyoid bone on display in the Gill cavity, oxygen is directly breathed in the air, so even in moist areas with little water and no water, it can survive for quite a long time, and can be out of the water for 3 to 4 days when the temperature range is from 10 °C to 15 °C.

3. Temperature environment: the survival water temperature of black fish is 0-41 ℃, and the optimum water temperature is 16-30 ℃. When the water temperature is above 8 ℃ in spring, it is often active in the middle and upper layers of the water body, and it is active in the upper layer of the water body in summer. When the water temperature drops below 6 ℃ in autumn, it swims slowly and often lurks in the depths of the water. When the water temperature is close to 0 ℃ in winter, it lives in the bottom mud and stops eating.

4. Jumping ability: the black fish has a strong jumping ability. When it is hot and stuffy, rain and water rise, the black fish will often jump out of the water and escape along the banks of the pond. When there is an impact of running water, it will also provoke the fish to jump and escape. If there is not enough bait in the pond, it will also be transferred to his pond, and its body will be like a snake and move forward slowly.