CATDOLL : CATDOLL: Which grows faster, freshwater cod or grass carp?

1. Which grows faster, freshwater silver cod or grass carp?

Freshwater grass carp. Freshwater silver cod are picky eaters, while freshwater grass carp are not picky eaters, so the latter are easy to raise and grow fast. Both fish are very good and have a linear appearance. Grass carp is also a delicacy on the table.

2. What kind of fish is cod? Is it a freshwater fish?

Cod, also known as cod, is a fish in the order Gadformes of the class Teleostei, phylum Chordata. Cod has a long and flat body, a large head, relatively small eyes, thick lips, and a prominent tail. Cod lives in seawater and is a marine fish. They are cold-water fish, so they are widely distributed in seas with relatively high latitudes. Adult cod live in waters between 175-225 meters deep, while juveniles live in shallower areas. Cod eats meat, and many small fish and shrimp can become its food. 1. What kind of fish is cod? Cod is a fish that we are more familiar with, and it is also called "cod". We can often see cod for sale in the market. From the category point of view, cod refers to fish in the order Gadformes of the class Teleostei, phylum Chordata, and it contains more varieties. Cod has a relatively long and flat body shape, a relatively large head, relatively small eyes, a very prominent tail, and thick lips. Their heads and other parts of the body are covered with a layer of scales, but the area of ​​the scales is relatively small.

From the perspective of living environment, cod is a kind of marine fish, and they live in the ocean. Specifically, cod is a cold-water fish, so it is most widely distributed in the waters of high latitudes. Especially in some waters in the northern Pacific Ocean, there live a lot of cod. Adult cod generally live in waters between 175-225 meters deep, while young fish live in shallower waters. From the perspective of feeding habits, cod is a carnivorous fish, and their main food is fish and shrimp in the sea, such as krill, mysid shrimp, capelin, smelt, etc., which may all become their food.

2. Is cod a freshwater fish? As mentioned above, from the perspective of the living environment of cod, they live in the ocean. Therefore, they are not freshwater fish, but marine fish. Cod has lived in the ocean for a long time, so they have adapted to the environment in the ocean and are typical marine fish. From the perspective of the specific distribution areas of cod, they are very numerous in the North Pacific region, such as near the Bering Sea and the Sea of ​​Okhotsk. This is because they are cold-water fish, and places with relatively low water temperatures are more suitable for their growth.

3. How do fish that grow in freshwater environments adapt to being farmed in cold water environments?

First of all, you need to know the living habits of this kind of fish. For example, freshwater tropical fish must be heated when the weather is cold. If you put them in cold water, they will surely die. It is impossible for them to adapt to it, let alone breeding. At the same time, you must maintain good water quality. The person above mentioned the oxygen problem, but that is layman's talk. The oxygen problem is easy to solve. If the water quality is not good, adding oxygen will easily kill the fish faster. You have to create a complete ecosystem and keep the fish alive first before you can talk about breeding. The word breeding also shows that you need to keep them alive first and then breed them.

4. Why does collagen take so long to take effect?

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5. Which deep-sea fish collagen is the best?

.Deep sea cod is best

Fish skin and fish scales are widely used. Fish skin (deep-sea cod) and fish scales (tilapia) are both widely used. In a macro sense, the collagen obtained is not much different. The transportation cost and freshness of the raw materials are the primary considerations. The principle of proximity is well known to everyone. Differences: Drug residues: There are concerns about drug residues in artificial breeding, and deep-sea fish are more likely to dispel consumers' concerns. Growth rate and nutritional value: Deep-sea cod grows mainly in cold sea waters and grows slowly under wild conditions. Tilapia grows mainly in high-temperature freshwater waters and grows faster under artificial breeding conditions. In terms of nutritional value, cod is higher than tilapia. Since collagen is expensive, and fish skin collagen is low in antigenicity, low in allergy, and easy to enzymatically hydrolyze, deep-sea fish skin collagen is suitable for all people and is also an ideal choice for sellers.

6. Does Chanel collagen peptide use raw materials imported from France?

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