How can we tell if a colored fish is genetically modified or dyed?

Colored fish refers to the use of artificial genetically modified technology.

Combining one type of fish with another fish can cause the body of the fish to change color and discoloration, so as to achieve the value of appreciation. If you want to determine what is genetically modified fish and dyed fish, it is actually very easy to determine, and there are mainly these two ways.

Coloured fish are generally found in wet markets.

Or in some places such as parks, you can basically see them everywhere in your life. However, in the face of huge profits, some fishmongers will sell dyed fish as rare colored fish, thus deceiving consumers. If you're shopping at a wet market and you're worried about whether the colored fish in front of you is a dyed fish, you can tell this way.

The first colored fish is next to the fishmonger, and it is usually stocked with a special colorDyesBags or buckets, and on the other side of the place, the fish that has been coated with dye. This dye is easily diluted with water, and common dyes arePotassium permanganateand carmine. If you find a fishmonger with such a tool or fish, don't ask too much, but turn around and walk away to avoid unnecessary trouble.

The second method of judging is to determine the color of the dyed fishFinsThe yellowing is particularly noticeable and unnatural, while the colored fish have the same fin as the normal fish. In addition, the eyes of the dyed fish will turn yellow, while the eyes of the fish that have not been dyed will be black and white. These are the two ways to determine whether a colored fish is a dyed fish.

In fact, there are no large-scale GM fish for sale in the market. Because the survival rate of genetically modified fish is very low, it is not like ordinary fish, which can survive for a year or two or even longer. We hear the word GMO, which is generally only used on foods, such as soybeans and corn.

According to my information, color transgenic fish in our China, basically very difficult to see, the so-called transgenic fish on the market, most of them are artificially bred and crossbred, such as the red carp, golden grass carp, silver triangular fish, etc., in the park, are artificially bred and hybridized. Because the reproductive ability of fish is already very strong, if people genetically intervene in fish, it will cause fish extinction and other situations, so the colored fish on the market are not necessarily all genetically modified fish. In life, we don't have to worry about whether there are colored transgenic fish, but more importantly, we must learn to distinguish the dyed fish, because the dyed fish is the most harmful to the human body, so we must learn to distinguish.

Colored fish, we are very common in life, when you walk into some large parks or aquariums, as long as you find that there are colorful fish inside, these are basically a variety of colored fish. The more well-known colored fish are colorful Bo fishParrot fish, guppies, kissing fish, and parrot fish, among others. Most of their names are based on the shape of the fish.

Colorful fish such as parrot fish are generally common in fish tanks at home, and they are very popular with people because of their red body and parrot-like mouth。Personally, too, I prefer parrot fish, which is a fish with colors all over the body, and it is also a beautiful scenery to buy one and keep it at home. If you also like colorful fish, then you might as well prepare a water tank and raise it yourself**.

The above is the method of determining whether the colored fish is genetically modified or dyed, I hope it will be helpful to you.

You can look at what the skin of this fish looks like, not only the scales, but also the details of the fish.

You can observe the color of the fish's eyes, and if it appears yellow, then it may be stained. It depends on the condition of the body.

Generally speaking, the color of colored fish is very simple, only red, white, etc., if the colored fish appear purple, blue or even glow, it is implanted with jellyfish genes.

First of all, you can wipe their bodies with paper, and secondly, they will be kept in water for a period of time, if there is a loss of color, it means that the fish are dyed.

In the market, we often see a lot of colorful fish. Many merchants will say that the colorful fish they sell are genetically modified small fish. However, after investigation, we can find that there are fewer and fewer genetically modified fish on the market, and most of the unscrupulous merchants will dye these small fish with special dyes, so as to present a colorful effect, attract the attention of others, and increase the probability of being sold.

The color of small fish can be changed through transgenic and dyeing, but in essence, genetically modified small fish can make this colorful gene pass on, but there is no way for dyed small fish to make the fish born of these colorful small fish also colorless through the means of reproduction. We have learned relevant biological knowledge in junior high and high school, and have learned the basic laws of heredity, if through genetic mutation or genetic recombination or transgenic formation of animals and plants, can be inherited through genetic methods to inherit this special trait. But if there are no genetic changes, just some changes in the body surface, then these traits cannot be passed on through reproduction.

So if you don't know what the difference is between dyed and genetically modified small fish, I can explain it further here. It's like us humans going to do some microplastic surgery, such as cutting double eyelids or filling apple muscles. These microplastic surgeries are the equivalent of staining small fish.

At this time, if we humans do some facial plastic surgery, it will not essentially change the genetic material in our cells, but only our external traits have changed. When we humans reproduce, then the genetic material will be genetically recombined. Some transgenic techniques, either genetic mutations or chromosomal mutations, essentially change the state of the genetic material, so that we can help the trait to be inherited when the gene is recombined.

When we see these colorful small fish in the market, try not to buy them, because many vendors don't know what genetic recombination is, and they don't know what genetically modified is, so they will sell these dyed small fish as genetically modified small fish, if there are really genetically modified small fish, then this small fish will not be available. Since the genetic material of the genetically modified small fish has been altered, once the small fish is introduced into nature, there is a high risk of species invasion or sometimes crossbreeding into the body of other fish due to changes in their genetic material.

Different colors, different means of reproduction, and different biological knowledge, genetically modified colored fish are created by artificial technology combined with other fish. The direction of judgment is different, the effect of feeding is different, and it contains different nutrients.

Genetically modified colored fish is the color of the body, and its pigment exists in the gene chain, which cannot be washed off no matter how much it is washed. Comparatively speaking, the dyed colored fish is only smeared with a layer of pigment on the **, and the color will fall off after soaking in water for a long time.

The color of the genetically modified colored fish is permanent and fixed. I can't wash it off. The color of the dyed colored fish is not long-lasting and not fixed.