What is the difference between Qingjiang fish and catfish? What are the farming methods of pangasius

Qingjiang fish. And catfish are both freshwater fish.

Both are very high in nutritional value, not only rich in protein, but also low in fat, which can bring a lot of benefits to the human body. If you want to distinguish between Qingjiang fish and catfish, you can judge by body size, body color, head, tail, etc., if you want to breed catfish at home, you must master the method, two levels of seedlings are very important, usually reasonable feeding some feed on it, and at the same time to carry out the method of rotation fishing and feeding, to prevent small fish from being eaten by big fish and causing the gap between fish bodies to become larger. <>

1. The difference between Qingjiang fish and catfish.

The body of the Qingjiang fish looks flattened, and the length is the same as that of the yellow croaker.

It's pretty much the same, but the catfish is relatively round, and the weight is very large, and some can even be as high as several thousand catties. The color distribution of the body of the Qingjiang fish is relatively even, and there are fish scales on the body, while the catfish is black-brown but has some white on the abdomen, and it has no fish scales on its body. The head of the Qingjiang fish is much smaller than that of the catfish, the mouth of the fish is a little flat, the beard of the catfish has many roots, and it is very long, in addition, the tail of the Qingjiang fish is not only forked but also very short, somewhat similar to the shape of scissors.

Second, the breeding method of catfish.

Catfish fry because of their weak resistance, if they are raised directly, not only will they pollute the water quality, but they are also generally difficult to eat the food they are fed, so they need to be intensively raised in small ponds first, and then put into large ponds after a little growth, which can help them grow quickly. In the process of feeding, it is very necessary to grasp the amount of feeding, and it must be uniform when sprinkling, eat less and more often, and prevent the polarization of catfish weight. Finally, because large fish will rush to eat, if they are fed uniformly, it is easy to cause small fish to not eat food, so it is necessary to separate large and small fish into ponds to raise them, so that they can grow in a balanced manner.

The cold tolerance of catfish is very poor, so in the winter breeding process must pay attention to give him it warmth, in fact, the appearance of Qingjiang fish and catfish is still very different, as long as you master some of their characteristics, it is very easy to distinguish. And when raising catfish, as long as the right method is used, their survival rate is very high, and their reproductive ability is also very strong.

Different living habits, different forms, different living environments, Qingjiang fish like to live in mountain spring water, catfish can live in swamps, or ponds. We must pay attention to the selection of the environment, pay attention to the establishment of the area of the fish pond, pay attention to the selection of fish fry, understand the specific breeding methods, must be scientifically managed, and pay attention to the situation of the growth cycle.

The living environment of the two is very different. Qingjiang fish need high-quality water, and also choose water with the right pH. Most catfish live in rivers and lakes.

The first thing to do is to build a fish pond, and then disinfect it regularly. Fish feed should also be fed regularly. Make sure that the temperature of the water is above 7 degrees.

Catfish are demersal ferocious fish. Afraid of light, Qingjiang fish refers to the fish produced in the Qingjiang reservoir area of Hubei; , feed the internal organs of chickens and ducks in the early stage of breeding, and feed wild trash fish in the later stage of breeding.

Qingjiang fish is not a catfish. Qingjiang fish is a fish that lives in the spring water of Shanqing socks, this fish needs to live in waters with moderate acidity and alkalinity, while catfish is a fish that lives in swamps and ponds. The head of the catfish will be significantly larger than the head of the Qingjiang fish, and it is flattened, and the head of the fish is generally larger than the body.

Catfish are larger than Qingjiang fish, and the size of Qingjiang fish is about the same as that of yellow croaker.

Qingjiang fish refers to the fish produced in the Qingjiang reservoir area of Hubei Province, which is known as the "province of a thousand lakes" Hubei Province. The trademark "Qingjiang Fish" has been reported to the State Administration for Industry and Commerce to note the Mengcha Huai register. Changyang "Qingjiang Fish" brand is favored by domestic and foreign merchants for its excellent growing water environment, delicate meat, no muddy smell and safe eating.

The Qingjiang River originates from the mountain stream cave spring in western Hubei Province, which is formed by the collection of more than 2,000 mountain branch friend springs, the water quality is excellent, there is no pollution source, the fishery resources are very rich, and the famous "Qingjiang fish" grows far-reaching.

1. The concept is different: Qingjiang fish is a fish produced in the Qingjiang reservoir area of Hubei. Catfish is a species of catfish in the genus Catfish of the animal kingdom.

2. Different appearance: The body of Qingjiang fish is a little flat, and the body of catfish is relatively round, with a fat and round feeling. The mouth of Qingjiang fish is a little flat and wide, and the beard is relatively short, with a total of two whiskers.

The mouth of the catfish is curved, relatively rounded, and the beard is also very long, with four or more whiskers. The belly of the catfish is somewhat light gray or white, but the color of the abdomen and body of the Qingjiang fish is basically the same, and there is no change.

3. Different living habits. Qingjiang fish mainly live in places with specific environments, excellent water quality and suitable climate. The pH of Qingjiang water is moderate, the dissolved oxygen is sufficient, the water quality is fresh, there is no pollution and no pollution, and it is the main growth area of Qingjiang fish.

Catfish mainly live in the middle and lower layers of rivers, lakes, reservoirs, and ponds, and are mostly active in coastal areas, and are mostly hidden under grass, stones or deep water during the day.

Qingjiang fish is mainly produced in the Qingjiang reservoir area of Hubei Province, and catfish are distributed all over the world; The body of Qingjiang fish is a bit flattened.

The weight is light, with a body length of about 20 cm, while the body of the catfish is relatively round, with a body length of about 30 cm and a weight of up to 1,000 catties; The color of Qingjiang fish is relatively light, the color of the body and abdomen is basically the same, and there are fish scales on the body, while the body color of the catfish is usually black-brown or gray-black, and the abdomen is somewhat light gray or white, and there are no fish scales on the body.

Qingjiang fish and catfish are both fish, but they are two varieties of fish, not one type of fish.

There is a difference in the variety, but it is not big. The main thing is that there is a difference in the name. The name varies from region to region.

What is the difference between Qingjiang fish and catfish? There is a big difference between the catfish and the growth environment of Qingjiang fish.

The main thing is that the body does not eat a lot of food, and the taste is relatively delicious.

Well, Qingjiangyu's words, I'm afraid that kind of meat is more um, more tender, and there are not many thorns, there are also that kind of big thorns, it's delicious, and if you are young, it's not as delicious as the lyre, I think.

Qingjiang fish and catfish can be distinguished, and catfish have long whiskers.

These are two different types of fish with different tastes.

Of course, there is a difference, first of all, they look different, and their taste is not the same.

The breeding method of pangasius is two-stage seeding. Freshly transported fish fry, weak resistance, and different specifications, if directly put into the pond feeding, then because the fry activity range is large, physical exertion is more, and the bait put in is difficult to eat for a while, resulting in waste, but also pollute water quality. However, if the two-stage seedling release is implemented, that is, it is concentrated in the small pond first, and then put into the large pond for breeding.

This not only makes it easier to manage, but also allows the fry to better adapt to the new environment, and it is easy to get enough food in the small pond to promote their rapid growth.

When the fry cultivated in the small pond reaches about 10 15 cm, the large fish fingerlings can be selected from the pond and put into the large pond for breeding, and the small fish fingerlings are still left in the small pond for intensive cultivation, so that the fish species grow in a balanced manner and the specifications are consistent. This avoids the phenomenon of large fish eating small fish in the breeding process, so as to effectively improve the survival rate and unit yield of fry.

Feed the bait wisely. Catfish is an omnivorous fish and is gluttonous, so it is necessary to correctly grasp the amount of feeding, so that how many fish in the pond are fed and how much feed, to prevent blind bait. At the same time, it is necessary to implement sub-point feeding, spread bait evenly, eat a small amount of food, and feed enough to prevent uneven hunger and satiety, and the phenomenon of polarization.

At the same time, in the early stage of fish fry cultivation, animal feed should be the mainstay, intensive cultivation, with the growth of the fish, gradually switch to some plant feed, so that the combination of animal and plant feed. The daily feeding amount should be controlled at about 5 8% of the total weight of the fish, and the feeding amount should be adjusted every 1 week or half a month to make the feeding amount more reasonable.

Implement rotational fishing and separate breeding. Because the catfish is ferocious and greedy, the big fish often grab the food first when feeding the bait, and the small fish can not eat the food, resulting in the fish size gap is getting bigger and bigger, so that the catfish should be caught in a rotation before fishing, and the large and small fish are raised in separate ponds, so that the growth reaches a balance. This is one of the important measures to increase production.

Wintering of catfish is promoted. When fishing in autumn, in addition to the big fish**, some adult fish can be moved into the deep pool for wintering (nylon greenhouses are built on the pond) to sell early spring fish; This can not only solve the problem of difficult sales of catfish in the peak season, but also extend the time of fresh fish, and the price of fish can be doubled, which is really a double win.

Precautions for catfish farming.

Catfish is an excellent species of freshwater fish, but its disadvantage is that it has poor cold tolerance, and it is easy to freeze to death when the water temperature drops below 7, and pay attention to heat preservation in winter.

Catfish are ferocious and greedy, often big fish rush to eat when bait, small fish are easy to lack food, pay attention to the size of the fish separately raised.

How to distinguish Qingjiang fish from catfish.

The tail of a catfish is round and fan-shaped, whereas the tail of a catfish is forked.

The head of the catfish is relatively large and the shape is flat.

Catfish are scaleless, with serrated posterior edges of dorsal and pectoral fins. Whereas, the dorsal fin of catfish is small, without hard spines, and has 4 6 fins.

Catfish generally have only one dorsal fin on their backs, while catfish have two dorsal fins on their backs, one on the tail and the other on the front of the body.

1. The concept is different.

1) Qingjiang fish: Qingjiang fish refers to the fish produced in the Qingjiang reservoir area of Hubei.

2) Catfish: It is a species of Catfish, the kingdom - Chordates - Chordates - Chordates - Radiatae - Catiformes-Catgasiformes-Catfishes.

2. Types. 1) Qingjiang fish: The annual fish output in the Qingjiang reservoir area reaches 5,000 tons, and the main species are Qingjiang black catfish, red catfish, spoon sturgeon (duckbill sturgeon), Ding Gui, yellow catfish (yellow bone fish), Jiangtuan (Feituo), barbed rake, hybrid sturgeon, black carp, red carp, mandarin fish, white carapace, whitebait, largemouth catfish, crucian carp, silver carp and green shrimp.

2) Catfish: There are many species, common catfish (native catfish), largemouth catfish, bearded catfish (pond catfish), leather bearded catfish (Egyptian bearded catfish, Hakka commonly known as pond slippery fish).

3. Life habits.

1) Qingjiang fish: specific environment, excellent water quality, suitable climate. The pH of Qingjiang water is moderate, the dissolved oxygen content is sufficient, the water quality is fresh, and there is no pollution and pollution.

2) Catfish: Catfish mainly live in the middle and lower layers of rivers, lakes, reservoirs, and ponds, and are mostly active in coastal areas, mostly hidden in grass, under rocks or deep water during the day, and foraging activities are frequent at night. In the still water of reservoirs, ponds, lakes and weirs, it is mostly found at the shady bottom or under the patches of water floating lotus, water peanut and water hyacinth.

Catfish have a strong ability to adapt to the environment, and their lifespan can reach more than 70 years.