CATDOLL : CATDOLL: How many seedlings are needed to cultivate Egyptian catfish per acre?

1. How many seedlings should be planted per acre for breeding Egyptian mullet?

According to public data, 10,000 to 15,000 fry are stocked per acre of pond for breeding Egyptian mullets. Because the stocking density is too high, the lack of bait, water quality and activity space affects the weight gain of individuals, which leads to poor actual benefits of fish farming. Egyptian mullets are small-tailed fish, and 10,000 to 15,000 is just the amount that each acre of fish pond can bear. The daily feeding amount is about 8-10% of the mullet's body weight, and it is fed 2-3 times a day.

2. What is the difference between Egyptian mudskippers and common mudskippers?

The Egyptian mullet is different from the common mullet in the following ways:

1. Different distribution areas

Egyptian mullet:

It is native to the Nile River system in Africa. my country introduced it for trial breeding in 1981, and successfully bred it in Guangdong's freshwater breeding farm in 1982. It has now been promoted in most parts of South China and Central China.

Common mullet:

It is distributed in the Mesopotamian Plain, the Nile Valley, the Indus Valley, the middle and lower reaches of the Yellow River and the Yangtze River (that is, the Yangtze River and the water bodies to the south of the Yangtze River, also Guangdong, Fujian and other provinces), etc., and is widely distributed throughout southern China.

2. Different appearance features

Egyptian mullet:

It is also known as the Egyptian catfish. It has a black body color and is mostly cultivated artificially. Individuals are very large, generally weighing several kilograms.

Common mullet:

It is also called catfish, horn fish, and earth mullet. It has yellow body color, is mostly wild, and is small in size, with the largest being 500g.

3. Different growth characteristics

Egyptian mullet:

Egyptian catfish grows very fast. The hatched seedlings can reach commercial specifications in the same year. The average individual can reach 500-700 grams, and the largest individual can reach 1.5-2.5 kilograms. In pond culture, with sufficient feed supply, the yield per mu can reach 1,500-2,500 kilograms. According to CCTV reports, the highest yield can reach an astonishing 400,000 kilograms. The yield per mu of mixed culture can generally reach 75-100 kilograms.

Common mullet:

The catfish is a voracious eater and often lurks in the dark at the bottom of the pond after eating. Therefore, it grows fast, has high yield and short production cycle. It can be raised in southern China for 2 to 3 seasons a year. It is raised in ponds and after 4 to 5 months of feeding, the fry can generally grow to 0.5 kg in the same year, and the largest individual can reach more than 2 kg, and the yield per mu can reach 5,000 kg. For the fish that overwintered last year, they can generally grow to 1 kg, and the largest individual can reach more than 4 kg.

4. Different living habits

Egyptian mullet:

Egyptian catfish is a bottom fish with a docile personality. It has a strong ability to adapt to the environment, and its critical temperature for cold resistance is 7°C. It is resistant to low oxygen and can still survive when the dissolved oxygen content is as low as 0.128ppm. When the dissolved oxygen in the water is insufficient, it often swims to the surface and swallows air. The competition within the species is fierce, and the phenomenon of the strong preying on the weak and killing each other often occurs in the fish ponds and adult fish ponds.

Common mullet Fuhengchong:

They are active and feed mostly at night, and dive into the water or caves during the day. After artificial breeding, they can also feed during the day, taking some plant-based concentrated feed. The pond mullet has strong adaptability and can grow in small water bodies and low dissolved oxygen environments. It is less susceptible to diseases, has a wide source of feed residue, is easy to breed, and has low cost. It is suitable for breeding and promotion in small water surfaces in farmyards.

Reference source: Baidu Encyclopedia - Egyptian catfish

Reference source: Baidu Encyclopedia - Tangyu

This is a serious... catfish... In Guangdong, catfish are divided into two types: Egyptian catfish and local catfish. Let's talk about these two types of catfish:

1. Egyptian catfish, scientifically known as Egyptian catfish, is very different from the catfish we usually see. The main difference between catfish and catfish is that catfish have no fins on their abdomens, and catfish have eight whiskers (four pairs), with two small whiskers under the corners of their mouths, while catfish have only four whiskers (two pairs), also with two small whiskers under the corners of their mouths.

2: The most obvious difference between the local pond mullet and the Egyptian pond mullet is the color. They both have 8 whiskers, but the local pond mullet's are mostly light yellow or khaki.

catfish

Catfish is also called catfish and smelt. There are two types: freshwater and marine. The marine type is called marine catfish. Except for the fish roe which has a peculiar smell and is not suitable for consumption, the whole body of catfish is a treasure. Catfish is a precious nutritional product, a good product for lactation, and has the effects of nourishing yin and blood, replenishing qi, appetizing, and diuresis. It is a must-have food for women's postpartum diet therapy. It has been recorded in history books as early as the shark fin and wild turtle. Its diet therapy and medicinal value are not possessed by other fish. Its unique effects of strengthening sperm and bones and prolonging life are its unique highlights.

Catfish's color ranges from light yellow to dark gray. Its color is mainly determined by the species, but the color of the water it lives in can also change its skin color. Because it is a predatory fish, its skin color changes with the water color to make it easier for it to hide and pounce on its prey.

3. How to eliminate Egyptian catfish when it becomes a disaster in reservoirs?

Egyptian catfish, also known as Egyptian catfish, can be killed by using tea dregs.

Tea cake, also known as tea bran or tea seed cake, is a purple-brown granule that is the residue of tea seeds after oil extraction. Its active ingredient is saponin, and it is also a plant-based pesticide. Tea cake contains 12-18% tea saponin. Tea saponin is a hemolytic toxin that can dissolve the red blood cells of fish, so it can kill wild fish, loaches, snails, river clams, frog eggs, tadpoles and some aquatic insects. Tea saponin is easily soluble in alkaline water. When using it, adding a small amount of lime water will make it more effective.

Tea seed cake is widely used in fish pond cleaning, rice field and high-grade lawn pest control, earthworms, cutworms, and other pests. Tea seed cake is a green medicine that can decompose by itself, has no toxic residue, has no effect on the human body, and is safe to use. Second, it does not kill aquatic plants, but has a growth-promoting effect on aquatic plants. Third, it has no side effects on shrimp and crab larvae, and increases the rate of shrimp seedlings and crab larvae out of the pond.

If it cannot be eliminated, don't do anything that will cause harm to innocent people.

Moreover, the water quality of the reservoir is not bad, and the meat quality is also very high-quality. The Egyptian bearded fish in the reservoir is also very delicious, and there is no stinky smell from the river and pond.

4. Can I raise 50 small Egyptian fish fry in a bucket?

I have 50 small Egyptian fish fry. Can I keep them in a bucket? How can I say this? It is possible temporarily, but it will not work for a long time. I still have to put them in a fish pond.

5. Egyptian tang

1.80 yuan wholesale

6. Can 50 Egyptian catfish fry be kept in a bucket without any equipment, without changing the water, and fed with green leaves every day and survive for a long time?

Most fish will die, unless they are old loaches.