What do you feed black fish?

Although the black fish is not as common as crucian carp and carp, it is also a common edible fish in our country, and the black fish is very fierce, it usually mainly feeds on the fish in the pond. The individual of the black fish is very large, so its economic value is very high! Many investors have taken a fancy to the characteristics of low investment and high return on Blackfish.

What do you feed black fish?

Black fish bait includes animal viscera and all kinds of small fish and shrimp. Some farmers use chicken intestines to feed, but also achieved good results. If we raise yellow powder insects, fly maggots or earthworms, we can not only solve the bait problem, but also greatly reduce the breeding cost. Black fish can also be fed with artificial diet, the formula is: minced minced fish and shrimp surimi 70%, bean powder 20%, yeast powder 5%, the rest are multi-vitamin mineral salt, growth promoter and antibiotics. Bait twice a day, the amount of bait is 5%-7% of the body weight of the fish, and it is difficult for most fish to eat. When using artificial bait, feeding training should be carried out from an early age. At the initial stage, earthworms or minced fish and shrimp can be put on the table, and the table can be hung 20 cm below the water surface to induce fish fry to ingest food. After the fry are used to eating on the platform, the compound bait will be gradually increased. Do not feed live bait in the middle of feeding training, so as not to affect the training effect.

What is Blackfish?

Black fish, is the common name of snakehead, also known as mullet, raw fish, wealth fish, snake fish, fire fish and so on. Black fish are ferocious, fertile and have a huge appetite. They can often eat all the other fish in a lake or pond. Blackfish can also glide on land, migrate to other waters in search of food, and can live out of water for as long as three days. As early as 2000 years ago, it was listed as the top grade of insects and fish by Shennong Materia Medica, stone honey, bees, beeswax (propolis), oysters, tortoise shells, mulberry tick octopus, sea clams, clams, carp and so on. Black fish is a common edible fish in China, with large size, fast growth and high economic value. Black fish has less bone spurs, high meat content and rich nutrition, which is higher in protein than chicken and beef. As a medicine, black fish has the functions of removing blood stasis, nourishing and nourishing. After surgery, eating black fish has the effect of invigorating muscle and tonifying blood and promoting wound healing.

Predation habits of black fish

The swimming speed of black fish is slow, and it generally does not chase its prey, but hides near aquatic plants or other hidden objects, and pays close attention to the movement around it. Once it is found that there are palatable live baits passing through the vicinity, it will quickly attack, catch at one stroke and eat a large amount of food. It can often swallow about half of its body length of live bait, and the maximum capacity of its stomach can reach about 60% of its body weight. According to the anatomy, a 500g black fish swallowed eight grass carp species 10cm long in a relatively short time, and had the habit of killing each other, capable of swallowing individuals of the same kind whose body length was less than 2/3.

The food intake of black fish is closely related to the water temperature. In summer, when the water temperature is high, it is quite gluttonous and the food intake is large. When the water temperature is lower than 12 ℃, it will stop feeding. Under the condition of artificial feeding, when the animal feed is insufficient, it can also eat bean cake, vegetable cake, fish meal and other artificial formula feed.

The living habits of Blackfish

1. Black fish is a wild fish, which exists in many rivers, lakes, reservoirs, streams and canals in the south and north of China. In some places in the south, there are also special artificial stocking, but all of them are separate ponds. If there are several black fish in someone's fish pond, the fry in that pond will definitely suffer. The black fish is violent and fierce, known as "overlord in the water", but it is actually a harm to the fish pond.

2. Blackfish is a fierce carnivorous fish. In the juvenile stage, zooplankton is the main food, while adult fish specializes in small fish, shrimp, insects, Loach and frog.

3. Strong vitality, tolerance to hypoxia and strong ability to adapt to the environment. Individual size, fast growth, maximum body length up to 2 meters, weight up to 100 kg pond water dried up, black fish drill into the wet soil, can survive for two or three months, once there is water can be resurrected as before.

4. belong to the middle and lower class fish, often hiding in stone crevices, secluded places or weedy places, waiting for opportunities to catch prey. In summer, they often go to the surface to bask in the sun, and in winter, they dive into the underwater mud or artemisia residue to spend the winter.

5. Black fish like to live in lakes, reservoirs, rivers, ditches and ponds with lush aquatic plants and soft mud. They usually lurk at the bottom of the water, and only move to the upper and middle layers of water when they feed or lack oxygen in the water. Black fish have strong adaptability to bad water quality, water temperature and hypoxia. In addition to the Gill, the respiratory organ of the black fish also has an auxiliary respiratory organ (suprabranchial organ). When there is a lack of oxygen in the water, it can put its head out of the water to breathe oxygen in the air directly.

Although Blackfish is also a fish, it is much more ferocious than the fish we usually buy in the vegetable market. And there are many wild black fish, which mainly feed on small fish and shrimps in the lake. For farmed black fish, it is not ferocious in the wild, and usually mainly feeds on small fish!