CATDOLL : CATDOLL: What kind of fish is golden crucian carp?

1. What kind of fish is golden crucian carp?

Crucian carp (scientific name: Carassius auratus, also known as crucian carp, crucian carp seeds, moon crucian carp, native crucian carp, happy head, crucian carp, cold crucian carp) is a common freshwater fish in Eurasia. It is a species of fish in the genus Carassius in the family Cyprinidae, order Cypriniformes, class Actinopterygii. Through artificial breeding and selection, many new species of crucian carp can be produced. For example, goldfish is an ornamental fish produced from this. Its scientific name is the same as that of the wild crucian carp for consumption, Carassius auratus.

Crucian carp is an omnivorous fish that feeds mainly on plants. It likes to live in groups and chooses its food. The meat is tender and has high nutritional value. Every 100 grams of meat contains 13 grams of protein, 11 grams of fat, and a large amount of minerals such as calcium, phosphorus, and iron.

2. Are goldfish the offspring of carp and crucian carp?

Although carp and crucian carp belong to the same family, goldfish evolved from wild crucian carp, which means that goldfish and crucian carp are of the same species, and any hybrid of goldfish and crucian carp can produce normal offspring. The current ornamental fish koi evolved from carp.

Goldfish is a species of crucian carp that was artificially bred after mutation, and has nothing to do with carp.

The fish originated from the wild crucian carp commonly eaten in my country. It first changed from a silver-gray wild crucian carp to a red-yellow golden crucian carp, and then after different periods of domestication, it gradually changed from a red-yellow golden crucian carp to various varieties of goldfish. As an ornamental fish, records of red crucian carp appeared as early as the Jin Dynasty in China (265-420). In the "release pond" of the Tang Dynasty, red-yellow crucian carp began to appear, and golden crucian carp began to appear in the Song Dynasty. People began to raise goldfish in ponds, and the colors of goldfish appeared in white and spotted. In the Ming Dynasty, goldfish were moved into fish basins. In animal taxonomy, it is a bony fish belonging to the phylum Vertebrata, subphylum Cephala, jaws, class Pisces, subclass Eustomidae, order Cypriniformes, family Cyprinidae, subfamily Cyprinidae, and genus Carassius. Goldfish and crucian carp belong to the same species and are scientifically named the same (Carassius auratus auratus).

No, it is the result of a long period of improvement of the golden crucian carp.

I can only tell you that you have a good imagination, but you need to be more practical

No

3. Can golden crucian carp be eaten? Is it a genetically modified fish?

At the end of 2015, the United States approved the commercial breeding of genetically modified salmon and regarded it as food for Americans. According to this regulation, American kindergartens, schools, and hospitals can use genetically modified salmon as food. This is the first genetically modified animal in the world that is allowed to be commercially bred. In China, you can't buy this kind of genetically modified salmon if you want to eat it.

Therefore, what you call golden crucian carp cannot be a genetically modified animal.

4. What is the lifespan of red crucian carp?

The life span of red crucian carp is 1-20 years.

Red crucian carp, also known as golden crucian carp or grass goldfish, looks similar to Japanese koi. It is a variety formed by the mutation of red and yellow crucian carp during artificial breeding. It is the oldest variety of goldfish.

Red Carp Like Koi Carp, Red Carp breeds from March to August, always spawning in weedy lakes after rain. Red Carp grows a little slower.

Its colors include fiery red, red and white, etc. Since red crucian carp has simple breeding conditions, low breeding costs, omnivorous nature, and fast growth, it can be used for self-training of breeding techniques for beginners, so it is a very popular species. It is mainly distributed in Asia and has strong survival ability.

Additional information:

Feeding of Red Crucian Carp

1. Change water

You need to change the water frequently to increase oxygen, but you cannot use tap water because tap water contains chlorine. Once red crucian carp encounters chlorine, it will die within a few hours. You can use mountain spring water, lake water, or stream water.

2. Feeding

Water earthworms, commonly known as red nematodes, look like earthworm larvae. Because water earthworms live in mud, when feeding water earthworms to red crucian carp, they must be rinsed repeatedly, otherwise the red crucian carp will get sick.

3. Lighting

Because sunlight can kill bacteria, it is best to put the red crucian carp in the sun for an hour or two to prevent disease. And the color will be brighter and more beautiful.

Reference: Baidu Encyclopedia - Red Crucian Carp

Generally speaking, the life span of fish is related to its individual size and the age of sexual maturity. The larger the fish is, the later it matures, and the longer its life span is. From this perspective, the world's largest fish, the whale, should have the longest life span. Unfortunately, so far, people know nothing about its life span. It is reported that the European sturgeon living in the Caspian Sea and the Black Sea can weigh up to 1,500 kilograms and live for more than 100 years; and the white sturgeon in the Yangtze River in my country has a life span of nearly 100 years. Many small fish, such as the false goby, herring, and silver fish in freshwater, have a life span of only about one year. Although the life span of fish varies greatly among species, the life span of most fish is concentrated between 2 and 20 years, of which 60% are concentrated between 5 and 20 years. No more than 10% of fish can live for more than 30 years, and only 5% live for less than 2 years. Among the freshwater fish in my country, the life span of silver carp, minnow, redfin whitefish, copper fish, yellow catfish, silver carp, and sand snakehead is between 2 and 4 years; the life span of black carp, grass carp, silver carp, bighead carp, crucian carp, bream, redfin whitefish, and mandarin fish is mostly between 7 and 8 years, and some can live for more than 10 years. The life span of marine fish is shorter.

In addition, the life span of the same species of fish varies depending on the environment. For example, yellow croaker can live for 29 years in coastal areas of Zhejiang, but only 17 years in coastal areas of Fujian and Guangdong. In the eastern waters of Hainan, it only lives for 9 years.

The life span of red crucian carp is 1-20 years.

Red crucian carp, also known as golden crucian carp or grass goldfish, is similar in appearance to Japanese koi. It is a variety formed by the mutation of red and yellow crucian carp in artificial breeding. It is the oldest variety of goldfish. Its colors include fiery red, red and white, etc. Since red crucian carp has simple breeding conditions, low breeding costs, omnivorous nature, and fast growth, it can be used for self-training of breeding techniques for beginners. Therefore, it is a very popular species. It is mainly distributed in Asia and has strong survival ability.

The red crucian carp has a spindle-shaped body, an unforked tail fin, and normal dorsal, ventral, pectoral, and anal fins. It is strong, adaptable, has a wide range of diets, and is easy to raise. In addition to red, its body color also includes red and white flowers, five flowers, etc. It is suitable for large-scale breeding in parks and natural waters, and can also be raised in courtyard tanks and aquariums.

5. How to raise golden crucian carp

Feeding method:

1. Stocking density

Before raising koi, you must first consider the size of the breeding container and the number of koi that can be accommodated. The main attraction of koi is its gorgeous colors, strong body shape, elegant movements and beautiful swimming posture. Koi are best viewed from the back, that is, from above. They are much less attractive if viewed from the side. To fully meet these conditions, only garden ponds can be used for breeding. However, as urban residents, not everyone has a garden, so an aquarium is used instead. Regarding the breeding density, it should be adjusted in combination with the size of the container, water volume, water temperature, oxygenation status, fish size and growth conditions.

2. Variety matching

When raising koi in a garden pond, they are usually matched with red and white, Taisho Sanshoku, Showa Sanshoku, gold or platinum, autumn water, light yellow, etc. In an aquarium, people can only see the side of the koi, so they can choose koi with reflective fish bodies, such as gold, platinum gold, Matsuba gold, Yamabuki gold, etc., and then match them with German carp. But whether it is raised in a pond or an aquarium, most of the koi are brightly colored, supplemented by darker, shiny and elegant ones.

3. Feeding method

Koi are omnivorous fish, and can be fed with animal or plant baits, such as water fleas, water worms, shrimps, corn flour, biscuit crumbs, instant noodle crumbs, vegetables, and even rice balls. But if you want Koi to be colorful, in addition to the lighting, background and water quality, it is more important to feed them with highly nutritious special Koi color-enhancing artificial feed, which comes in flakes or granules.

Bait can be placed alone or alternately. Koi are quite greedy. If they are fed too much, they will suffer from indigestion or constipation. Therefore, you should pay attention to the amount and frequency of feeding, and follow the principle of feeding small meals frequently, without leftover bait or spoiled water.

For hatched young fish, you can initially feed them rotifers, water fleas or egg yolks. Small fish of about 2 cm should be fed with baits such as bloodworms. For fish that grow to more than 5 cm, they can eat any animal or plant bait.