CATDOLL : CATDOLL: Is farmed freshwater cod nutritious?

1. Is artificially farmed freshwater silver cod nutritious?

Yes, silver cod is also known as naked head fish. It is found on both sides of the North Atlantic Ocean, including the Bering Sea coast of the Kamchatka Peninsula, Alaska, California and other waters. It usually lives near the bottom (water depth 0~2740 meters) and is a cold-water bottom-dwelling fish. Silver cod contains a lot of fat in its body, and its meat is white, fine and tender. The best silver cod in the world is produced in France.

Freshwater silver cod, also known as freshwater cod, is named for its snow-white body. It is a wide-temperature fish with delicious meat, strong resistance to adversity, and salt and alkali resistance. Freshwater silver cod has become a valuable large-scale economic fish in my country, and its prospects are very broad.

2. Is cod a marine fish or a freshwater fish?

Cod are marine fish because they live in the ocean. They do not live in fresh water and therefore are not considered freshwater fish.

From a global perspective, cod is widely distributed, especially in the North Pacific region, such as the Bering Sea and the Sea of ​​Okhotsk, where there are a lot of cod.

Cod is a marine fish that grows in high latitudes.

Cod is a marine fish, not a freshwater fish

3. Habits of freshwater cod?

(1) Under artificial breeding conditions, freshwater silver cod will live in the middle and lower water layers of the water body. If the water temperature is suitable and the surrounding environment is quiet and undisturbed, they will occasionally float to the surface.

(2) When freshwater cod float to the surface, they gather together and swim around the pond. If there is any other sound at this time, they will sink rapidly and flee.

(3) If the water temperature is above 15°C, freshwater cod will swim to the bottom of the pond and gather in clusters deep at the bottom to hibernate.

(4) Freshwater silver cod has the characteristics of strong adaptability to temperature, strong resistance to stress, and tolerance to low oxygen.

(5) Wild silver cod are omnivorous fish. Under natural conditions, they usually feed on plant debris, benthic animals and small fish and shrimps. Under artificial breeding conditions, their main food is artificial egg yolk paste, soybean milk and plankton such as rotifers, small cladocerans and copepods in the breeding water.

Freshwater silver cod can grow 40 to 50 centimeters in a year.

1. Silver cod can grow to more than one meter in length.

2. It grows 40 to 50 centimeters a year, and the adult fish grows about 5 to 8 kilograms a year. Silver cod, also known as naked head fish, is a cold-water bottom-dwelling fish. The silver cod contains a lot of fat in its body, and its meat is white, fine and tender. It is produced on both sides of the North Atlantic and is currently farmed in many areas.

3. During its growth process, silver cod feeds on plankton, plant debris, small fish and shrimp, and benthic animals in the water.

4. Are there many deep-sea cod farmed?

There are not many deep sea cod farms.

This is because artificial breeding of cod is troublesome and difficult. Because they are marine fish, they need to be bred in seawater or simulated seawater. If they are bred in freshwater, they cannot survive. Therefore, compared with many freshwater fish, their breeding threshold is much higher. Cod is a marine fish.

5. Can cod be farmed artificially?

Can be cultivated artificially.

Cod is a kind of fish that we are familiar with, and it is quite common in our country. Cod is a kind of fish that lives in the ocean, so it is more troublesome to breed it artificially. However, the economic value of cod is relatively high, and breeding them has good economic prospects. The demand for cod in the market is also relatively large, so the behavior of breeding them artificially also exists. Moreover, artificially farmed cod is basically farmed on a large scale, and the number is relatively large. At present, most of the cod we can buy are artificially farmed.

A: It cannot be artificially bred. Because cod is a cold-water fish in the middle and lower layers, it is a schooling fish, most of which live in the cold sea with a water temperature of 0~16°C. Adult fish mainly live in the water layer of 175-225 meters, and juvenile fish live in the water layer of 80-100 meters. Both adults and juveniles have the habit of moving vertically day and night. Adult fish have the habit of swimming from deep water to shallow water spawning caves, and juvenile fish have the habit of clustering.

It feeds on invertebrates and small fish, such as krill, mysid shrimp, smelt, capelin, etc.

6. How big does a 3cm freshwater silver cod grow in a year?

It is no problem for a 3cm freshwater silver cod to grow to ten to fifteen centimeters in a year. Because cod does not grow very fast, it has very high requirements for water quality. It must be clear and clean, and the water temperature must be between 25 and 30 degrees, neither lower nor higher. They like quiet waters, so when choosing a filter, it must be a low wattage filter with low noise, which is conducive to their growth and development.