CATDOLL : CATDOLL: The breeding cycle will affect sales. How long is the breeding cycle of live mandarin fish?

The breeding cycle will affect sales. How long is the breeding cycle of live mandarin fish?

Osmanthus fish is a typical carnivorous fish. When feeding artificially, it can be fed with dead fish, dead shrimp, etc. Male fish mature at the age of three, and female fish mature at the age of four. Its growth rate is relatively fast, reaching 50-100 grams in the first year, about 0.5 kilograms in the second year, and 1-1.5 kilograms in the third year. Under natural conditions: in the seedling stage, that is, in the first year, it grows within one tael, in the second year, six taels to eight taels, in the third year, one catty to one catty and six taels, and in the fourth year, it does not exceed three catties! ! This is located on the east bank of Hongze Lake, one of the famous lands of fish and rice. I am over fifty years old and have never seen a crucian carp weighing more than six catties.

Reproduction habits Osmanthus fish sexually matures early. In natural waters, male fish can reach sexual maturity in one winter and female fish in two winters. Under intensive breeding conditions, some female fish can reach sexual maturity in one winter. In South China, the breeding season of Osmanthus fish is generally from March to August, with May to June as the peak spawning season. The natural growth environment must also be relatively good, and the survival rate is low. There are four simple factors to pay attention to when raising Osmanthus fish. The first is to choose a place to raise fish, the second is to clean it up, the third is to determine what may happen in the later stage, and the fourth is that the early fry is very important. As for raising it to ten kilograms, it will take at least five years.

Mandarin fish breeds in all major rivers and freshwater lakes. Mandarin fish has tender meat, few bones, delicious taste and rich nutrition. It is a delicacy on banquets and is favored by consumers. In ponds, not only can a small amount of mandarin fish be mixed to remove wild fish, but also can be raised in special ponds. It is one of the popular varieties of freshwater aquaculture. Osmanthus fish grows relatively slowly. Generally, it is farmed once every three years. The big ones are two or three catties and the small ones are more than one catty. It is rare to see big osmanthus fish in natural waters. Basically, the smaller ones of 2 to 3 taels and half a catty are more common, but the largest one I have seen is about 7 catties, because my family lives next to Yangsha Lake.

This depends on the breeding environment. I think the sweet-scented osmanthus fish bred in reservoirs grow very fast, probably about 2 years. It should take more than 8 years to reach 10 kilograms. I hope my answer can help you.

About half a year. Its breeding cycle is not very long, and you can get great benefits from breeding it.

The general cycle is about 5 months, and generally after 5 months, the quality of the aquatic product is relatively high, and the taste of this fish is also very good, and the selling price is also relatively high.

Generally speaking, it takes about 13 days. They are very easy to keep alive. You just need to feed them with good information and also pay attention to changing the water, which can make them grow very fast.

The breeding cycle of this fish is 3 to 4 years, and when breeding this fish, you must choose a fish pond with good water quality so that this fish can survive.

How many years does it take to grow a three-jin mandarin fish?

Now I will introduce you to the mandarin fish in detail, commonly known as sweet-scented osmanthus fish, stone flower fish, seasonal flower fish, freshwater grouper, etc. It belongs to the order Perciformes, family Lipididae, subfamily Sinipoidea, namely the genera of long-bodied Sinipoidea, few-scaled Sinipoidea, and Sinipoidea. They are Sinipoidea, big-eyed Sinipoidea, high-bodied Sinipoidea, spotted Sinipoidea, rippled Sinipoidea, Liuzhou Sinipoidea, dark Sinipoidea; Chinese few-scaled Sinipoidea, Korean few-scaled Sinipoidea, Japanese few-scaled Sinipoidea. Chapter 1 Introduction to Biology 1. Geographical distribution of Sinipoidea fish There are three genera and 11 species of mandarin fish in the world. It is a freshwater fish unique to Southeast Asia and is mainly distributed in China. There are three genera and nine species of mandarin fish distributed in China. The northern boundary of the distribution of Sinipoidea fish is near Yuanhui in the middle reaches of the Heilongjiang River, and the western boundary is near Pingshan in the lower reaches of the Jinsha River on the west side of the Sichuan Basin. Among the Sinipoidea fish, mandarin fish and spotted Sinipoidea are the most widely distributed. The nine species of mandarin fish distributed in my country are concentrated in the south of the Yangtze River. The South China region south of the Yangtze River is the distribution center of the subfamily Siniperinae. 2. Brief review of the subfamily Siniperinae Among the 11 species of fish in the subfamily Siniperinae, the growth rate is fast, and the shape is good, the meat is good, and the economic value is high, which is suitable for artificial breeding. Among the two types of mandarin fish, the mandarin fish grows faster. Because the mandarin fish has more pyloric caeca, it digests food quickly, while the big-eyed mandarin fish has fewer caeca and grows slower. In natural water bodies, mandarin fish only needs 2-3 years to reach commercial specifications, while big-eyed mandarin fish takes 3-4 years. Their growth rates are more different. Under the same breeding environment, after two years of breeding, in 1986, the Foshan Aquatic Technology Extension Station and the Aquatic Research Institute conducted a comparative breeding test of the Pearl River mandarin fish and the big-eyed mandarin fish. The growth rate of mandarin fish is 4 times faster than that of the big-eyed mandarin fish. There are many species in the subfamily Siniperinae, but the most economically valuable one is the Siniperca chuatsi (Siniperca chuatsi). 3. Shape characteristics of Siniperca chuatsi The body of Siniperca chuatsi is fusiform, slightly flattened laterally, with a raised back and a shallowly arc-shaped ventral edge. The body color is brownish yellow and brownish yellow, with many irregular patches or spots, usually with a tan or reddish brown stripe from the tip of the snout through the eye to the dorsal fin and below. The abdomen is grayish white, and there is usually a dark brown longitudinal band below the base of the sixth to seventh dorsal fins. There are brown spots on the dorsal fin, anal fin and caudal fin connected in a belt-like shape. The head is cone-shaped when viewed from the side, with the nostrils located at the front edge of the eyes, and a nasal flap at the rear edge of the anterior nostril, which is larger than the distance between the eyes. The lower jaw is significantly protruding, and the rear end of the maxilla exceeds the vertical line of the middle point of the eye, and some almost reach the vertical line below the rear edge of the eye. There are sharp teeth of varying sizes on the upper and lower jaws, vomer, and operculum, among which the teeth of the upper and lower jaws are enlarged into canine teeth. The tongue is narrow and long, and the front end is free. The rear edge of the preoperculum is serrated, the dorsal fin is long, and the fin rays in the front half are hard spines. 4. Ecological habits of mandarin fish 1. Living habits: Mandarin fish is a freshwater sedentary fish, especially likes to live in lakes, rivers and streams with lush aquatic plants. They do not migrate long distances. When the water level is lower than 7 degrees in winter, mandarin fish almost stop eating. Mandarin fish likes fresh water quality and it is difficult to survive in fertile ponds. 2. Diet Mandarin fish is a typical carnivorous fierce fish. After hatching, it will feed on the fry of other fish. In the fry stage, it can swallow the fry of other farmed fish equivalent to 70-80% of its own body length. In natural water bodies, the appearance rate of shrimp in the food of mandarin fish is 83.3%, far exceeding the appearance rate of other fish. When it is 20 cm long, it feeds on small fish and shrimp. When it is more than 25 cm long, it mainly feeds on large fish. Under aquaculture conditions, when there is abundant food, fish with slender bodies, soft fins and small individuals are often chosen as food. The maximum length of bait fish that adult mandarin fish can easily swallow is 60% of its own length, and those with 26-36% are more palatable. 3. Growth rate Under aquaculture conditions, the bait is palatable and sufficient, and the growth is relatively fast. The average body length of one-winter mandarin fish cultured in cages is about 32 cm, which is equivalent to the body length of three-year-old fish in natural water bodies. Mandarin fish under the age of two grow faster than older fish, and one-year-old fish grow faster than two-year-old fish. The ratio of body length to body weight of the former is 1.33 and 2.39 times; this is because mandarin fish do not completely stop eating in winter, but the feeding intensity and growth rate are slowed down. 4. Reproductive habits Mature age: In Northeast my country, it generally takes 3-4 years to reach sexual maturity. There is data showing that male mandarin fish in the middle and lower reaches of the Yangtze River are sexually mature at the age of one. Breeding season: The incubation period is about 73 hours; when the water temperature is 25-30℃, the suitable incubation temperature for fertilized eggs of mandarin fish is 25-30℃. The newly hatched mandarin fish fry is only 3.8-4.5 mm in length, with a 1.5 mm yolk sac under the front abdomen. At this time, the fry can only make intermittent vertical up and down movements, and lie on the bottom of the water when resting. Mandarin fish fry can move horizontally 48-60 hours after hatching and start to eat. Chapter 2 Breeding technology of mandarin fish fry 1. Biology of mandarin fish fry 1. Nutritional characteristics of fry and development of digestive organs Based on the nutritional source of fry, there are endogenous nutrition stage, mixed nutrition stage and exogenous nutrition stage. Endogenous nutrition stage: the stage of development of endogenous nutrition such as yolk oil globules of the fry itself is called the endogenous nutrition stage. From the time when the fry emerge from the membrane to the time when they open their mouths to eat, the newly emerged mandarin fish fry is called the early stage of fry. The fish body is tender and small, and the fry is like lying on a mountain to develop. It accounts for about 50% of the fish's body weight. Mixed nutrition stage: The stage in which the fish partially relies on endogenous nutrients such as yolk and oil balls and partially relies on eating external food for nutrition is called the mixed nutrition stage. It is the stage in which the fry transitions from endogenous nutrition to exogenous nutrition. From the time the fry start to eat to the appearance of the pyloric sac, with the consumption and transformation of endogenous nutrients such as yolk and oil balls, the fry's feeding and digestive organs develop rapidly. After 64-120 hours after hatching, they start to eat, which means they enter the mixed nutrition stage. Exogenous nutrition stage: The stage in which the endogenous nutrients are exhausted and they completely rely on preying on live fry is called the exogenous nutrition stage, and they enter the juvenile stage. At this time, the fry have been out of the fry for 8-10 days, and the total length of the fish is about 12.5 mm. The fin rays and spines have differentiated, and the digestive organs have developed fully. 2. The feeding habits of mandarin fish fry Mandarin fish always feed on live fish from the time they start to eat. In the fry stage, they only eat live fry, do not actively eat non-fry bait such as zooplankton, do not eat dead fry, and do not even eat sick and weak fry with poor mobility. The fry that open their mouths to eat accurately prey on the swimming bait fry within a horizontal angle of 310°. The success rate of feeding in the early stage of opening feeding is of great significance to the survival of the mandarin fish fry. In the early stage of feeding, as long as they eat a bait fry, they will die due to the large consumption of energy if they still fail to successfully prey on a fry. In ecology, the high mortality risk period of the fry at this stage is called the critical period. Therefore, it is very important to provide palatable and sufficient bait fish in the fry breeding stage. When the fry open their mouths to eat under the water temperature conditions at that time, a small amount of mandarin fish fry can be placed in a container, and a small amount of pre-prepared bait fish can be put in to see if the mandarin fish fry open their mouths to eat.

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Mandarin fish is also known as Guiyu, Guihuagui, Chouzui Mandarin Fish, and Flower Crucian Carp. Although it is widely distributed in my country, its production is not large and it is a rare fish. The production of mandarin fish in the Heilongjiang, Yellow River, Yangtze River and other water systems is relatively large. It is also found in some lakes and reservoirs in Jiangxi and Hunan, but in small quantities. However, since the end of the 20th century, the phenomenon of artificial breeding of mandarin fish has appeared, and there will be more and more mandarin fish in the future.

This is a freshwater fish species that is native to my country. It has been very famous since ancient times. Its physical characteristics are: the body is relatively high and flat on the sides, the back is raised, and the dorsal fin is hard and well-developed, and the spines contain toxins. The head is large and the mouth is oblique, the palate is prominent, the scales are fine, and the teeth are sharp. The body is brownish yellow, the back is emerald green, there are black stripes on both sides, and there are beautiful spots or patches on the dorsal fin and tail fin. It is very beautiful.

Characteristics of Mandarin fish:

1. More “settlement” and less migration

The fish often live in river bends with slow-flowing water, wide waters at the intersection of two rivers, and the bottom of the water with more stones, fine sand and less silt. They also like to live in caves formed by the roots of rocky beaches and riverside trees. In still water, they often stay still at the bottom of the water to spy on food. If it is flowing water, they will also float to the middle layer of the water to look for food. When the temperature rises in spring, they will also go to shallow water grass to look for food. They especially like to lie sideways in depressions and between stones at the bottom of the water.

Mandarin fish also have a habit of living, that is, they like clear water, not muddy water, and they like large water surfaces, not small water surfaces. Mandarin fish are rarely caught in small ponds.

2. Eat meat but not vegetables

Mandarin fish eat meat but not vegetables, and they like to eat live food, such as live small fish and shrimp, and especially loach. Therefore, if you want to catch mandarin fish, you should use small loach as the main bait.

The eating method of mandarin fish is also different from that of common freshwater fish. It neither filters food, drinks food, nor bites food, but pounces on it. The skin of the mandarin fish is light green with blocky brown (almost black) patches, and it has teeth. Its skin color is similar to the camouflage uniforms worn by soldiers, and it has strong concealment and self-protection. It often hides in potholes, tree holes, and gaps between rocks in caves at the bottom of the water, without moving or swimming, waiting for small fish and loaches to swim over. Once it finds an edible small animal, it opens its mouth wide and swims out from its habitat, pounces on it, and then returns to the cave to "chew it slowly." It can swallow small fish and loaches that are half of its own length. Therefore, it is also considered a harmful fish because it can swallow other fish in the water, reducing their number. Nevertheless, due to its delicious meat and rich nutrition, with nearly 20% protein per 100 grams of fish meat, which is higher in nutritional value than grass carp, carp, crucian carp and eel, it has been a delicacy on the table since ancient times. In addition, mandarin fish has high medicinal value. Li Shizhen said in "Compendium of Materia Medica": Mandarin fish meat is sweet and mild, mainly treats bad blood in the intestines, removes small worms in the abdomen, strengthens qi and strength, makes people healthy and fat, replenishes deficiency and fatigue, benefits the spleen and stomach, and treats intestinal wind and bloody diarrhea. "

Mandarin fish habits:

1. Mandarin fish is a bottom-dwelling, ferocious, carnivorous fish with sharp teeth and a strong stomach that can expand and contract, but a very short intestine. It mainly feeds on fish and shrimp, and also eats zooplankton, but is not a vegetarian. It has a strong appetite and sometimes kills each other. It eats a lot in spring and autumn, and stops eating in winter.

2. Mandarin fish are suitable for clean water with running water in and out. They cannot survive in ponds with stagnant or dirty water. They are most abundant in lakes with lush aquatic plants.

3. It is solitary and unsociable, and likes to act alone. Mandarin fish are good at hiding, often hiding in stone caves, or at the roots of aquatic plants, underwater ridges and culverts, without moving, and are good at confusing other fish with the spots on their bodies. When they find prey, they suddenly jump out and pounce on it to devour it. They especially like stone caves and rocks, and usually swim beside rocks.

4. The hoe fish is phototactic. It has the habit of lying in caves and cracks during the day and comes out to look for food at night.

5. It grows fast, and can grow to about 100 grams in the first year, 500 grams in the second year, and 1000-1500 grams in the third year. The maximum weight can reach 10 kilograms. In the spring when flowers bloom, mandarin fish are active frequently, often looking for food in shallow water, and have a strong appetite. It is the best season to fish.

6. Widely distributed, it can be found in almost all rivers, lakes and reservoirs in my country. The spawning period is from May to July every year, and it has the habit of swimming in pairs.

7. The meat is delicious and has high nutritional value. It is one of the famous and precious turtles in ancient and modern times, both at home and abroad.

Mandarin fish like to move in clear water, but you can also catch fish in slightly muddy water; Mandarin fish like to move in flowing water, and I have also caught fish in still water; Mandarin fish like to move around rocks, and I have also caught Mandarin fish in places without rocks. However, the most common places to catch fish are still clear water, flowing water, rock holes, and rock sides. It's hard to say when it comes to fishing, everything is possible. It depends on luck.

Mandarin fish is also called sweet-scented osmanthus fish, mandarin fish, etc. It is a kind of precious freshwater fish breeding project. Mandarin fish has very tender meat, rich protein content, high nutritional value, and has long been artificially bred. With the popularity of mandarin fish in the market, the scale of artificial breeding is also constantly expanding. So what conditions are needed to breed mandarin fish?



1. Fish pond preparation

Mandarin fish is a bottom fish that generally lives in rivers and lakes with slow water flow. Of course, many of them live in reservoirs. Secondly, the fish pond should be rich in aquatic herbs, because mandarin fish usually come out to feed at night and rest at the bottom of the water during the day. Finally, the fish pond should have a certain amount of flowing water, not stagnant water. Such a breeding site is not suitable for breeding mandarin fish. If the water quality is not properly managed, it will cause large-scale deaths and large losses.

2. Water source conditions

Water source is a necessary condition for breeding mandarin fish, and it is also one of the most basic conditions for breeding. When we breed mandarin fish, the requirements for water source conditions are only the following aspects: the water source for breeding must be sufficient, away from polluted areas, the water quality of the water source must be guaranteed, and the water temperature should not be too high or too low.

3. Feed preparation

Mandarin fish is a typical carnivorous fish, and it is also quite ferocious when hunting. So the preparation of feed is also one of the conditions for breeding. So for mandarin fish feed, we usually need to prepare enough small fish, shrimps, loaches, etc. are all fine. Secondly, you can also feed some insects, such as earthworms, mealworms, red worms, etc., which are also extremely high-protein feeds for mandarin fish. Of course, we also have to pay attention to that, whether these feeds are small fish, shrimps, or insect feeds, we need to ensure their quality, so that we can better breed mandarin fish.

4. Feeding and management

The necessary condition for breeding mandarin fish is to have skilled breeding technology and sufficient breeding experience. If you do not have enough experience in breeding technology and management technology, or even do not have special mandarin fish breeding technology, do not try it easily, because it is likely to cause breeding failure. We mainly talk about a few points here. The first is the management of water temperature. The temperature suitable for the growth of mandarin fish is 15 to 32 degrees, and the optimal growth temperature is about 20 to 30 degrees. The lowest temperature should not be lower than 7 degrees. In addition, feeding needs to be carried out according to the living habits of mandarin fish. At a fixed time, the food intake should be reasonably controlled according to the feeding situation of mandarin fish. Finally, of course, the fish pond should be cleaned and disinfected regularly, and disease prevention measures should be taken.

It takes about four years.

It grows very slowly. A three-jin mandarin fish needs about five years to grow to this size.