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About 50% of catfish with a fast growth rate can reach sexual maturity by the time they are 1 year old.
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Generally speaking, it usually does not lay eggs for a year, and it basically takes about a year and a half to two years before it can be spawned, and this spawning is basically carried out in the spring.
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Generally, annual catfish do not spawn, and catfish spawning must grow for at least 2 years, because the production rate of pangasius is still relatively slow.
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The annual catfish will spawn, because the catfish will be able to spawn in about half a year, and it will mature.
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The annual fish Nian Fish is already an adult fish that can be seen raw and can spawn!
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Annual catfish have not yet reached sexual maturity and should not be able to spawn yet.
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The annual catfish will not spawn because he has not yet reached that age, and secondly, it depends on why?
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Hello, it is a pleasure to serve you. From your description, we have found that the spawning time of pangasius can extend from early April to the end of June, and the peak spawning period is from late April to mid-May. The time of inducing broodstock was from April 28 to June 20 in the late stage, and good labor induction effect was obtained.
Catfish are suitable for inducing spawning and spawning for a long time. The suitable water temperature for inducing labor and spawning is 16 to 28. Thank you for your consultation, I hope this service can help you, you can click on my avatar to follow me, and if you have any questions in the future, please consult me again, and finally wish you a happy life.
Expect a five-star review [laid-back].
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Catfish is a very common fish that is distributed all over the world, and they are also very widely distributed in our country. Catfish can live in the wild or be farmed in captivity. Under normal circumstances, catfish have a very long lifespan, and they can live up to about 70 years old.
Some catfish live longer and can live up to around 100 years.
However, it is rare for a catfish to live so long, and catfish in daily life generally do not live for so long, this is because there are many factors that affect the lifespan of a catfish. For example, captive-bred catfish naturally do not live for such a long time, they will be sold after a few years of farming, and catfish is a common ingredient. As a result, these catfish only have a lifespan of a few years.
The lifespan of wild catfish is relatively longer, sometimes up to decades, but there are also many factors that shorten their lifespan, such as unsuitable environment, and human hunting, etc., which will affect their lifespan to varying degrees.
2. How big can catfish spawn?
Catfish can breed and spawn, but only when they are of the right age and in the right environment. First of all, catfish need to meet the age condition, that is to say, catfish can only reproduce after sexual maturity, and catfish in the juvenile stage are naturally unable to reproduce and spawn. Specifically, catfish enter the stage of sexual maturity when they are about 2 years old, which is relatively early.
Catfish that have reached sexual maturity will breed and spawn during the appropriate breeding season, specifically from April to September, with the peak period being from May to July, when the water temperature is at its most suitable.
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The spawning time of pangasius can last from the beginning of April to the end of June, and the peak spawning period is from late April to mid-May
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The spawning time of pangasius can extend from early April to the end of June, and the peak spawning period is from late April to mid-May.
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Catfish have a strong reproductive ability. Catfish spawning type is special, and the development of oocytes in its ovaries is synchronized, but it is not produced in the same batch, but is divided into multiple productions. Under artificial conditions, a broodstock can induce spawning 3 or 4 times a year, with an average of about 2,000 eggs each time, and the total annual spawning is slightly lower than the number of eggs.
The diameter of the eggs laid in the late breeding period is slightly smaller than that of the eggs laid in the early stage. Ostereocyte sinking, greenish in color. It is sticky, and the egg diameter is usually mm. The spawning environment requires that in waters with a large number of aquatic weeds, the eggs will adhere to the aquatic weeds after they are laid. Hatchlings often live in dispersion.
Fishing Method:
1. Fishing bait. Catfish are ferocious by nature and are carnivorous and ferocious fish, so catfish bait needs to be mainly eaten live. Among them, small frogs, earthworms, small fish, small shrimp, and small loaches are the best bait.
The method of using the frog is to hook it into the back of the frog, to the back of the frog's head, slightly expose the tip of the hook, and tie the frog's legs to the hook handle. The method of using a large earthworm is to hook the hook tip from the head of the earthworm into it, to the majority of the earthworm, leaving the tail of the earthworm to drag it on the hook tip.
2. Fishing tackle and fishing methods.
Because the individual of the catfish is generally larger, the fishing rod should be mainly hard-adjusted, the fishing line should be thick, and the hook can be a long hook. Catfish fishing has different fishing methods in different seasons, but regardless of the season, close fishing, low-light fishing and night fishing should be used, especially night fishing has the highest hook rate. The best time is between late afternoon and before midnight.
Catfish are afraid of light and swim on the side, so whether fishing in rivers, ponds, lakes and reservoirs, the fishing spot should be selected in a narrow water surface, dim light, balanced current, shallow water area and places where there are many activities of small fish and shrimp. The hook for catfish fishing should be hooked with a long handle crooked mouth, and the fishing line should be millimeter gauge, with a large buoy and a heavy fall.
3. Precautions.
No matter what the season, if you encounter a wind above level 5, it is not suitable for catfish fishing. Catfish looks fierce and crazy when eating the hook, in fact, the catfish is a sensitive and tricky fish, all its movements are very flexible, if a ditch has been fished by a fishing net, the catfish has to go at least 3 5 days before daring to eat the hook.
The catfish is very flexible when biting the hook, and it is necessary to grasp the timing, both to wait for the catfish to bite the hook and turn back to run in time, and the action should be steady, fast and ruthless. Catfish have a fierce personality, after seeing the bait, bite a bite and drag away, the reaction of the buoy is to move a few times and then submerge into the water (black drift), black drift 2 3 seconds is the best time to lift the rod.
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Catfish is a very common fish that is found all over the world, and they are also very widely distributed in China. Catfish can live in the wild or in captivity. Under normal circumstances, catfish have a very long lifespan, and they can live up to around 70 years old.
Some catfish live longer, there are many types of catfish, and some catfish are kept for how long and their size is almost the same. In most parts of China, varieties can be sold for less than a kilogram**.
The breeding cycle of pangasius is about 90 days, and catfish in the market can produce two seasons a year. In Southeast Asia, the average lifespan of a catfish is about 30 years, and there is a giant catfish species that can grow up to 30 years. But it's rare for a catfish to live that long.
Daily catfish generally don't live that long because there are many factors that affect the lifespan of a catfish. For example, catfish in captivity naturally do not live that long. They are ** after a few years, and catfish is a common ingredient.
As a result, these catfish only live for a few years.
Catfish live long in the wild, sometimes decades, but there are many factors that can shorten their lifespan, such as unsuitable environments and human hunting, to varying degrees. Catfish are very adaptable to life, and the water temperature is 20 30, and the foraging is most active. Catfish have a high yield, producing up to 40,000,000 eggs at a time.
Catfish have a long lifespan. In natural waters, old catfish that have grown for about 10 years are common, and individual catfish have a lifespan of about 100 years. According to records, a captive-bred catfish has lived for more than 60 years.
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It is about three months to about 6 months, in the process of breeding different species, the breeding time is completely different, and the temperature of breeding is completely different.
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Generally speaking, it can be raised for about 30 years, because catfish can live to about 70 years old, and catfish have high requirements for the growth environment, so we must pay attention to this aspect when breeding catfish.
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Generally speaking, it can be 30 years when it is long, because catfish have cycles, and some catfish can live for 30 years.
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Individually, the long time can be 30 years, because catfish have cycles, and some catfish can live for 30 years.
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The eggs of the catfish, that is, the bearded fish, must be cleaned because its eggs are poisonous; And silver carp must be removed because its fish liver is poisonous.
Catfish, same as catfish. There are many species, common catfish (earth catfish), largemouth catfish, bearded catfish (pond catfish), leather bearded catfish (Egyptian bearded catfish), Hakka commonly known as slippery fish.
Catfish, animalia - Chordates - Chordates subphylum - Radiatae - Catiformes - Catfishes - Catfishes - Catfish - Catfish species. There are a total of 4 whiskers on the mouth, long at the top and short at the bottom, carnivorous, mostly wild, with low requirements for water quality, and can be artificially cultivated. The growth rate is relatively fast, and some varieties can grow to a large size.
Largemouth catfish, animalia - phylum Chordates - Subphylum Chordates - Radiatae - Catiformes - Catfishes - Catfishes - Catfishes - Catfish - Largemouth Catfish species. The appearance is similar to that of a catfish, and it also has 4 whiskers, but the mouth is strangely large, and the individual is much larger than that of a catfish. It can be artificially cultivated, the growth rate is fast, and the fry bred in the current year can grow to 500 750 grams in the current year, 1500 2000 grams in the second year, and 3000 4000 grams in the third year.
Most of the catfish sold on the market are this kind of catfish, and the meat quality is relatively ordinary and cheap.
Bearded catfish, local bearded catfish, also known as pond catfish, pond horn fish. Animalia - Chordates - Subphylum Chordates - Radiata-Catiform-Bearded Catfishes-Bearded Catfishes-Bearded Catfishes-Bearded Catfishes. 8 beards, 4 on top and 4 on the bottom.
The body color is yellow, the wild fish grows slowly, the general weight does not exceed 1 catty, the nutritional value is high, and the taste is good. It can be artificially cultivated and has great market potential.
Leather-bearded catfish, also known as Egyptian bearded catfish, Egyptian pond catfish, was introduced from Egypt. Animalia - Chordates - Chordates Subphylum - Radiata-Catiformes-Bearded Catfishes-Bearded Catfishes-Bearded Catfishes-Leather-bearded Catfish species. 8 whiskers, all black, large individuals.
Most of them are artificially bred, the growth rate is very fast, and the breeding can weigh up to 2 kg a year, and the largest individual can reach more than 10 kg. It has low requirements for survival water quality and is resistant to low oxygen. The meat quality is not very good, and the market is ** cheap.
But it is easy to breed, the growth rate is fast, and there are many people who breed.
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Toxic ingestion can cause vomiting, abdominal pain, diarrhea, difficulty breathing, and in severe cases, it can lead to paralysis, edong, recreation.
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Why is it that I have nothing to eat for a few years, and you have nothing to do when you eat.
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I haven't eaten this, I don't know.
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Catfish is a relatively fast-growing fish. Generally speaking, they can grow 1-4 pounds a year. Specifically, they grow at different rates under different circumstances.
For example, artificially farmed catfish grow quickly under the conditions of suitable environment and sufficient food, and can grow three or four catties per year. Wild catfish, on the other hand, grow more slowly. In addition, they also grow at different growth stages, with faster weight gain at 2-3 years of age.
Catfish is a common fish, they can be farmed, and they can also live in the wild in freshwater waters such as rivers and lakes, and they are very widely distributed around the world. Relatively speaking, catfish still grow relatively fast, and their body size is relatively large. Of course, not all catfish grow fast, and their growth rate will be affected by environmental factors, such as water temperature, water quality, etc.
In addition, their growth rate is also affected by food, and different foods contain different effects, so their growth and development are also different.
As mentioned above, the growth rate of catfish is relatively fast, especially when the environment is suitable and the food is sufficient. Generally speaking, catfish can grow 1-4 catties a year. Specifically, the growth rate of catfish is different in different situations.
For example, in the case of artificial breeding, the surrounding water temperature, water quality and other conditions can be artificially regulated, and a lot of nutritious food can also be provided, so the growth rate of catfish will be faster, and it can grow three or four catties every year. The growth rate of wild catfish may be slower due to various environmental factors.
In addition, the growth rate of catfish is also different within different growth stages of catfish. In the case of farmed catfish, their growth rate is relatively fast in the second and third years, and the growth rate will slow down thereafter. Of course, after a few years of farming, the catfish may be sold and will not be able to continue growing.
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