Is the catfish dirty? Are catfish really dirty?

Unsolicited answers from aquaculture professionals. The professional analysis has already been in front of it, and it will not be repeated, whether the catfish is dirty or not under the side. First of all, we have to understand, why do you think that catfish is dirty (mainly talking about Egyptian bearded catfish, which is commonly called Egyptian pond fish in the south)?

The main factor is that the Egyptian bearded catfish is highly resistant to disease, grows fast, omnivorous, and can also be intensively cultivated on a large scale in dirty or heavily polluted water bodies, so it is relatively cheap. Let's talk about another fish we often eat, tilapia, do you think tilapia is dirty? It looks quite green in the aquarium of the vegetable market, but what everyone doesn't know is that in many farms, tilapia is fed with pig manure (many pig farms will come with one or several fish ponds, and pig manure is discharged directly into the fish pond), tilapia is also omnivorous, and it also eats everything.

In addition, silver carp and bighead carp are also omnivorous, and often these two fish are raised as a supporting role, allowing them to clean up the dirt in the pond and play the role of scavengers, for example, a pond stocked with 4,000 tilapia and 50 silver carp each. The above are all low-cost civilian fish, and the following is aristocratic aquatic products. The more common omnivorous aristocratic aquatic products are yellow eel, loach, giant river prawn, hairy crab, etc. (in fact, there are a lot, because of less contact, all returned to the teacher), the large-scale breeding of these species, the water body is also very dirty, they are also eating the dirty things in the water, in essence, they are not much more noble than those "civilian" fish, the difference between them is only in the taste, flavor and appearance, and even its nutritional value is not much different (extra, nutritionally, The nutritional value of marine fish is greater than that of freshwater fish, and marine fish have one more unsaturated acid than freshwater fish.

Teacher, please forgive me, so the tip is to eat more saltwater fish if conditions allow). <

From the beginning of my memory to the second year of junior high school, whenever the river is not frozen, I will go to the fishing net with my grandfather almost every day to stick the fish (the filament is used to make the net, and the fish scales are stuck in and cannot exit). Catfish are caught almost every day (the small silver carp is the most, the crucian carp is the second, the carp and the catfish are less, and the king has it occasionally, but he disliked it at that time). At that time, I thought the best thing to eat was catfish, because there were few spines and fresh meat.

Twenty years later, when I returned to my hometown, I found that the river was almost devoid of fish, and the cause was the pollution caused by catfish farming. At this time, the village has opened a large-scale high-density breeding of exotic catfish mode, the density you may not think of - **, when the water in the pond is emptied, the remaining catfish with a depth of about one meter are all catfish! The man went down and carried it out in a basket, weighed it, and then poured it into a waterwheel and carried it away.

Now most of them talk about this catfish. This kind of farmed catfish feed is mainly chicken intestines, and the carrion of the meat plant is also added from time to time (fish farmers prefer fresh, so that the fish are healthy), their living environment is not too dirty, and the water is changed every week, due to high-density farming, the nitrogen content in the water caused by fish manure is too high, and it is discharged into the river to cause pollution, but if it is used in an appropriate amount to irrigate farmland, it can also resist fertilizer. Due to the single feed, the nutrients cannot be rich, but it is no longer toxic after biodegradation, and it can be eaten, but it is not delicious.

If this fish is thrown into the sun and exposed to the sun, it will be flat as paper in two or three days, which means that there is no good meat, just a skin bag of fat. <>

Catfish are not dirty as long as they are cleaned.

Saying that catfish are dirty means that the environment in which catfish grow is relatively dirty.

Catfish, scientific name catfish, is also known as bearded silver carp, sticky fish, pond lice fish, and raw larvae. The distinctive features of this fish are the scaleless body, the mucus surface of the body, the flat head and broad mouth, and the upper and lower jaws have four whiskers. Catfish is not only rich in nutrients like other fish, but also has delicate flesh and contains more protein and fat, which has a good therapeutic effect on people who are weak and malnourished.

Catfish is a good product for lactation, and has the effect of nourishing yin and nourishing blood, replenishing qi, appetizing and diuretic, and is a necessary food for women's postpartum diet therapy and nourishment.

Catfish are naturally fishy and smelly, and most of them live on swill, animal offal and sick and dead chickens and ducks. Catfish are tenacious and can survive in very dirty environments, such as urban stinking gutters. Some people call catfish dirty because of its internal organs, and since it can survive in human excrement, some fish farmers deliberately feed them with human or pig excrement.

Living in a harsh environment for a long time, catfish are prone to accumulation of toxic substances in their bodies, such as heavy metals, which cannot be eliminated no matter how high the temperature is cooked.

If these fish have heavy metals and harmful germs, they can cause food poisoning to consumers after eating. As for how much of this toxin will be absorbed by the human body, professional testing is needed to give an answer. It is not advisable to use swill or dead animals of unknown cause as feed is not advisable as fish are susceptible to disease and should be consumed with caution.

The environment in which catfish grow is relatively dirty, but as long as the catfish itself is cleaned, it is not dirty, and they will eat some dirty food, such as some rotten food or garbage, but they will digest it after eating these foods. Rich in protein and fat, catfish is nutritious, and is a carnivorous fish with delicate meat and less spines, and is delicious and rich.

1. Is catfish dirty?

1. Most of the environment in which catfish grow is relatively dirty, and some even live in stinky ditches, but as long as the catfish itself is cleaned, it is not dirty, and they will eat some dirty food, such as some rotten food or garbage, but they will digest it after eating these foods.

2. Catfish can be artificially farmed, and in the process of breeding, farmers will do a good job of changing the water to ensure that the water quality is healthy and provide them with normal food, so that the catfish is also very clean. Catfish, also known as bearded fish, pond fish, is characterized by more mucus on the body surface, no scales around the body, flat head and wide mouth, and 4 whiskers in the upper and lower jaws, mainly produced in the Yangtze River and Pearl River basins, mid-spring to mid-summer (April-July) is the best eating season.

3. The meat of catfish is delicate and less thorny, delicious and rich, rich in protein and fat, rich in nutrition, is a carnivorous fish, afraid of light, and likes to live in the stone crevices, deep pits, soil holes or stone caves at the bottom of the roots of the river, and in the water area with slow flow rate. In the spring, they begin to move and forage for food, and after winter, they do not eat, and lurk in deep water or caves for the winter.

Second, the daily management of pangasius farming.

1. Water management: catfish mostly need to be fed animal feed, so it is easy to cause water quality to deteriorate, local catfish are resistant to hypoxia, and can still survive in sewage, but the growth rate slows down significantly, and the growth stops growing when it is serious, so the water should be changed 1-2 times a week, and the 1 4-1 2 of the pool water can be replaced each time, and the water quality should be kept fresh as much as possible, and the effect will be better if the long-term micro-flow can be maintained.

2. Prevention and control of fish diseases: during the feeding period, the whole pool is sprinkled with bleaching powder or quicklime once every half month to prevent fish diseases, and water mildew can be soaked in malachite green (10 grams per cubic meter of water) for 3 minutes. Because catfish is a scaleless fish, it is more sensitive to various drugs than scaly fish, especially insecticides containing trichlorfon, which should be used with caution in production practice.

The statement that catfish are dirty is not true. Although the environment in which catfish live is generally not very clean, some even live in stinky ditches. They will also eat dirty food, such as rotten food or garbage.

However, that doesn't mean they're dirty. Because after they eat these foods, they digest them. In addition, farmed catfish live in water with good water quality and are fed clean food, so they are not dirty.

Catfish are not dirty. Although the environment in which catfish live is usually not very clean, some catfish even live in stinking ditches. They also eat some dirty food, such as some rotten food or garbage.

But that doesn't mean they're dirty. Because they digest food after eating. In addition, farmed catfish will live in water of good quality, and the food they are fed is also very clean and therefore not dirty.

Catfish is not very dirty, you should clean his internal organs and head, it tastes very delicious, especially the catfish stewed eggplant, which is very fragrant and nutritious.

Is silver carp really dirty? The catfish is really dirty, and the food it eats is rotten food. So it's very dirty.

Are catfish really dirty? It is because of the living environment of the catfish, and the catfish eats everything, even human feces, so it is considered very dirty, but the artificially farmed catfish is different, the environment is very clean, and the food fed is also scientific.

Catfish generally live in sewage and live on the rotting food in the sewage, so catfish are really dirty.

Are catfish really dirty? Catfish eat carrion. Actually, I think catfish. Minister. Cook New Year fish soup is very salty, a food.

Try the catfish set, you eat some paste and rotten, OK Suzhou is relatively dirty, as long as it is handled well, it is still a good thing.

Yes, it's very dirty, and if you eat it, you'll die.

The environment in which catfish live is generally not very clean, and some even live in stinky ditches. And they will also eat some dirty food

Catfish has the possibility of eating some carrion, so people think it is dirty, but in fact, there is nothing to wash it.

Nice to meet you, catfish is an omnivorous fish, and everything in it can be used as food, so be sure to take care of its internal organs.

Are you kidding? Go to Douyin to search for catfish - national treasure, ask him if catfish is dirty, and he will reply you with a perfect answer.

Artificially raised can choose and create a clean breeding environment, and wild ones cannot be guaranteed.

Do you feel dirty when you grow vegetables out of?

Most of the catfish grow in a dirty environment, and some even live in stinky ditches, but as long as the catfish itself is cleaned, it is not dirty, and they will eat some dirty food, such as some rotten food or garbage, but they will digest it after eating these foods.

Catfish is not very dirty, and it is still a delicious fish after processing.

Because the catfish grows in an extremely harsh environment, he mostly lives in stinky ditches and grows up eating rotten garbage, so people say that he is the dirtiest fish in the world.

Although catfish is the dirtiest fish in the world, it can still be put on people's tables as a delicious dish, its meat is tender, nutritious, and the edible value is relatively high. It has strong vitality, can adapt to a relatively harsh environment, can adapt to dirty water and muddy water, and excessive dirty substances in fresh water will also affect his normal growth. In fact, catfish is not dirty, but the living environment is relatively poor, the edible value of this fish is also very high, after fishing, it can be cooked and eaten properly, and it can supplement rich nutrients for the human body.

1. How to choose catfish

Although the growth environment of catfish is very harsh, it makes people feel that it is very dirty, but it is an aquatic fish with high edible value, but when buying catfish, we must pay attention to the selection of wild fresh catfish, the body surface is smooth and scaleless, and the surface of the body is distributed with black patches, the whole body is gray-brown, and the individual body is black and the abdomen is white, but when buying, we must pay attention to those blackened catfish are artificially farmed catfish, their growth cycle is particularly short, and the practical value is relatively low, try not to choose to buy.

2. Precautions for eating catfish

Although catfish looks dirty, it has high practical value, but when buying catfish, you must choose fresh wild catfish, and pay attention to cleaning it when processing catfish, and all the fish roe in its body must be cleaned up, and you must not eat it, because the fish roe in the catfish body is poisonous, if people accidentally eat it, there will be abdominal pain, diarrhea and vomiting and other symptoms similar to food poisoning, which will paralyze people when it is severe.

3. Precautions for cleaning catfish

Catfish is an aquatic animal that grew up in the sewage pond, so after buying catfish, you must pay attention to cleaning, this fish has a strong muddy smell and rotten smell, if you don't clean it carefully, it will smell bad, so try not to eat the catfish directly when you buy it, you should put it in clean water for a few days, change the water 2 3 times a day, so as to reduce its fishy smell. After raising the catfish, the blood in his body should be discharged when slaughtered, and then the internal organs should be removed and cleaned up, so that the fishy smell of the processed catfish is relatively light, and it is clean and hygienic, which can ensure the safety of eating.

This is because catfish mainly live in the bottom of the water, and the bottom of the water has accumulated a lot of fish excrement, his swim bladder is relatively small, such a swim bladder is not able to support his huge weight, so he stays in the water most of the time, not much swimming, everyone knows that the bottom of the water is very much silt, some catfish also like to hide in these silt, plus there are other animal excrement, so in such an environment to survive, how can it be clean?

And catfish is a carnivorous fish, although its food is fish feed, small fish and shrimp, but he also likes to eat the feces of other fish, and even likes to eat some rotten food, such as dead fish and ducks and so on. His whole body was full of no fish scales, but a layer of mucus, which was slippery to the touch, making people feel particularly disgusting. Because of these reasons, everyone thinks that he is the dirtiest fish in the world, and he is not willing to eat it at all.

In fact, this idea is not very accurate, and it is a bit of a partial generalization, because wild catfish is actually difficult for everyone to buy, and such fish are indeed very dirty, after all, their living conditions are not particularly good. Nowadays, most of the things that everyone often buys are artificially raised, and under such conditions, it eats fish feed, and lives in a fish pond, and it is impossible to eat the carcasses of rotten animals.

If it is artificially cultivated, then the water quality in it is strictly controlled, and the living environment will not be polluted. So we need to distinguish between captive breeding and wild breeding, rather than just beating them to death with a stick and saying that all catfish are dirty. In fact, to be honest, wild ones are not so easy to buy, after all, the cost is too high, and they are also easy to be extinct, so most of the ones we buy are still artificially raised.