Monopterus albus cage culture generally uses high-quality polyethylene buckle mesh, the mesh size is about 7-8 mesh (0.3-0.5), and the cage size generally requires 4 square meters, 6 square meters and 8 square meters, which is too big to manage and the height is 0.8- 1.5 meters. According to the size of wind and waves and the change of water level in the water body where the cage is installed, the height of the cage can be adjusted appropriately. The eel pond should be located in a place with sufficient water, no pollution, no flood disaster and sunrise all the year round. Generally, the density of installed cages accounts for 20%-30% of the water surface, the spacing is about 1 m, the row spacing is about1-2m, and the offshore distance is10-15m. The water depth of the cage is 30-80㎝, the water outlet height is not less than 50㎝, and the bottom should not touch the bottom mud. Straighten the iron wire with enlarged piles on the shore, and fix it with small piles every 3-4 cages in the water. Cages in the wind need to be fixed at the bottom, and it is best to hang four corners in the water with stones. It is best to erect the cage in the middle and late May, so that a "biofilm" formed by filamentous algae can be formed in the cage to avoid the friction injury of eel species. At the same time, aquatic plants such as water peanuts, water hyacinth and oil grass are placed in the cage to let Monopterus albus inhabit and purify the water quality. Aquatic plants should be laid about 20 days before eel seedlings are released, and the cut parts of water peanuts should be placed in cages. Water peanuts should be cleaned and disinfected to prevent parasites and germs from being brought in. According to the size of the cage, the laying of aquatic plants should be about 1-2 square, with a thickness of 20cm, uniform thickness, square or round. There should be no empty water surface among aquatic plants and no "tail" around them.
2. Stock stocking and preparation before stocking
Disinfect the pond in winter, drain the water, expose the bottom of the pond for one to three months, and then clean the pond. Cleaning ponds with more sediment with 300 kg of quicklime per mu can neutralize the sediment while disinfecting. In ponds with small miscellaneous fish, snails and mussels, using 1 kg niclosamide per mu can kill all large organisms in the ponds, such as wild miscellaneous fish, miscellaneous shrimps, miscellaneous crabs, red worms, spines, tube worms, nematodes and water centipedes. , compete with breeding objects for space and food, and consume oxygen. For example, in ponds that are prone to rust water in previous years, 2 kilograms of copper sulfate can be used per mu to kill harmful algae species. Better ponds can be cleaned with bleach. After cleaning the pond, the high temperature is 7- 10 days, and after the low temperature is 15 days, test the water and release the seedlings. After testing the water, you can enter the water, hang the cage and put weeds.
Before stocking, ponds, cages and aquatic plants should be treated with insecticide and disinfection to prevent the disease of Monopterus albus. Insecticidal selection is carried out/0/5 days before seedling release, mainly to kill leeches and saplings, and 2-3 mu/bottle of special medicine "Insecticidal Ning" is used. After two days, the water body should also be disinfected. The disinfectant can be concentrated glutaraldehyde 2-3 mu/ bottle or gold iodine 2-3 mu/ bottle. During disinfection, the pool water should be kept at a certain level, and the water, aquatic plants and cages should be thoroughly disinfected. Finally, transfer water, 2 mu of Qingshui Jieduling per generation, or high-efficiency detoxification and water conservation per generation 1 mu. Then you can wait for the seedlings to be released.
3 seed selection
Selecting high-quality fry is the key to successful breeding. Eel varieties with large and dense yellow and black spots, slender body and big head should be selected, which have strong adaptability, large appetite, fast growth speed and high weight gain multiple. Eel varieties with small and irregular yellow spots are generally longer; Inferior seedlings are characterized by blue gray, gray white and black back, short and thick body, poor adaptability, small food intake and slow growth. When selecting eel fry, we must ensure that it is disease-free, smooth and lively. Because the eels bully the small and bite each other without food, the specifications of the eels in the same pond should be basically the same, and the individual weight is generally 10-30 g or 25-50 g, so they should be raised separately. Suitable specifications can be selected according to the price of local seedlings at that time.
Eel seedlings should be graded and screened before they are put into the box, so as to eliminate disabled individuals and prevent sick and disabled seedlings from being put into the box, otherwise it will easily cause mutual infection. The seedling selection method can be judged by the following methods. A. Hydrostatic method: pour the purchased eel fry into a container, add 50cm of clear water, that is, eel fry above 10cm, gently stir the eel fry, and then let it stand for 2 minutes. At this time, the eel fry in poor health will remain floating, stretching their heads for air or simply sticking their heads out of the water, their heads will not sink and their cheeks will swell red. This kind of seed has poor physique and low survival rate. B, visual appearance discrimination: the seedlings with obvious trauma on the body surface, white mouth and tail, red and swollen anus, upset belly or swimming along the edge, and weak hands are the second seedlings. Under normal circumstances, such seedlings are high-quality seedlings when lying at the bottom of the box, with sufficient mucus, elasticity and no trauma.
4. Stocking time and density stocking time are generally April-May or July-August. The best stocking time is June-July. During this period, the temperature and water temperature were stable above 25℃, and the seedling survival rate was high. Stocking density should be flexibly controlled according to stocking specifications and feeding conditions. Seedlings should be released in June-July. Generally, 400-500 kg of seedlings with a size of 20-30 g/tail per mu of water surface is appropriate. Test the water before stocking. You can use 2-3 pieces of bighead carp or silver carp of 5- 10cm to test the water. If the fish moves normally, the toxicity will disappear, otherwise the stocking time will be postponed. When stocking, it should be noted that the water temperature of the temporary feeding pond and the stocking pond is equivalent, and the temperature difference between them does not exceed 3℃. If the difference is large, the water temperature should be properly adjusted to minimize the stress response.
5. After the initial feeding management and larval opening, the body resistance of Monopterus albus decreased due to the increase of larval habitat and density, enhanced stress response, slow secretion of skin mucus and other factors, and external pathogenic microorganisms were easy to invade and cause diseases. In order to make Monopterus albus adapt to the new living environment, the larvae spread Jiedu Stress King 1 bag+new generation Baoxuekang 1 bottle, and 20-40 cages or high stability vc2 bag+new generation Baoxuekang 1 bottle can be used for 5-7 days.
Local seedlings can be eaten on the same day, and foreign seedlings can be eaten 3-4 days after entering the box. Edible materials: earthworm, small fish and shrimp, silkworm chrysalis, fly maggot, snail, macrozooplankton, etc. Earthworms are chopped with a knife and fed directly at the feeding point. Generally, pure earthworms are fed for 3-5 days, and each container is kept at 0.3 kg. Then, add the fish paste. After the earthworm fish slurry reaches 3% of the weight of eel fry, feed is added. Granular feed should be diluted with 25% or attractant water and soaked before feeding. After soaking in water, the appearance of feed becomes soft, which is not only easy to digest, but also reduces the sewage in the feed adsorption pool and reduces the spread speed of pathogens. Specific method: Soak in clear water or fish paste with half the weight of feed for about 10 minute before feeding, and feed when the feed is slightly softened. Adding "stomach-invigorating and food-luring treasure" in the domestication process can obviously improve the opening rate, increase the yield and improve the economic benefit.
There are four principles of feeding: timing: feeding only once at 5-6 pm. Quantification: Be flexible. Under normal circumstances, the daily food intake accounts for about 5%- 10% of the body weight of Monopterus albus, and it is appropriate to eat within 2 hours. In addition, it should be adjusted according to the weather conditions. The feeding amount can be increased in sunny days, and reduced in rainy days when the water temperature is higher than 30℃ or lower than 15℃, and only 80-90% is fed in hot seasons. Quality judgment: choose feed with good quality. Fixed-point: the feed delivery point should be fixed and cannot be changed casually.
5. The daily management of Monopterus albus enters the high temperature season in summer and autumn. Monopterus albus eats vigorously, excretes a lot, and the water quality is extremely corrupt. At present, water quality control and heatstroke prevention and cooling are the main measures. A small amount of grass carp, crucian carp, silver carp and bighead carp can be mixed in the pond. The basic collocation ratio is: 20-30 grass carp per mu, 50-70 silver carp per mu and 20 silver carp per mu, which can remove feces and residual bait and purify water quality.
In the process of cultivation, the food table often stinks and turns sour. Therefore, it is necessary to dig out the residue and visible feces every morning, arrange the feeding points, and use 5-8 chlorine dioxide effervescent tablets every other week to prevent the water quality from deteriorating and deodorize quickly. According to the water quality, regular use of Qingshui Jiedu Ling or high-efficiency Jiedu Shuibao can keep the water fat, lively, tender and refreshing for a long time.
Dead and rotten aquatic plants in cages should be fished out in time. Under the condition of ensuring shade, some aged aquatic plants should be moderately removed to promote the growth of new grass and enhance the function of aquatic plants in cages to purify water. Prevent aquatic plants and branches from growing outside cages or eel ponds, and create conditions for eels to escape. The suitable water temperature of Monopterus albus is 15-30℃. Too high or too low will affect its feeding and growth, so it is necessary to create a suitable water temperature environment for it.
Go swimming in the pool twice every morning and evening. Observe the change of water quality in the pond; Pay attention to the diseases and activities of Monopterus albus. If you find anything unusual (such as swimming wildly along the pool, attaching aquatic plants, sticking your head out of the water, swimming poorly, etc.). ), find out the reason in time and handle it in time. Thunderstorm weather is sultry, the air pressure is low, and there is no oxygen in the water. You can see Monopterus albus standing upright in front and sticking its head out of the water. Pay attention to splashing stress drugs at this time.
Chapter III Diagnosis and Prevention of Common Diseases of Monopterus albus
The causes of the disease of Monopterus albus can be summarized as follows:
A. improper site selection. If the site selection is improper, the water quality of the water source is not good, the drainage and irrigation system is not smooth, or there is no independent water inlet and outlet pipeline, it is easy to cause the epidemic of diseases in production.
B. the environment is not suitable. There are too few or no plants in cage culture, which is not conducive to digging holes and regulating water quality and temperature of Monopterus albus, and it is difficult for Monopterus albus to adapt to it, which leads to the failure of culture.
C, pool cleaning and disinfection is not thorough. Especially in old ponds that have been cultivated for many years, there is a lot of silt at the bottom of the pond, and there are a lot of pathogenic microorganisms and parasites in the silt. Once the conditions are right, these pathogenic microorganisms can easily multiply and infect Monopterus albus.
D. improper selection or treatment of eel fry. Before stocking, in order to eliminate diseased seedlings according to the correct operation, or do not know the source of Monopterus albus, buy drugs to catch seedlings; After stocking for one week, without effective drug control, the transported seedlings were injured or mucus was damaged, and they were weak and prone to diseases.
E, the density is too high, the specifications are different. First of all, the transportation density is too high, and the fry population is overstocked, and all of them can not be treated in time, which destroys the defense function of eel surface mucus, and harmful pathogens are rapidly infected, which often causes a large number of fry to die within a few days after entering the pool; Secondly, the high feeding density makes Monopterus albus in a state of stress for a long time. Monopterus albus secretes mucus faster, and its constitution is weakened, which leads to its illness and death.
F management is not standardized, such as changing water too much, which is easy to cause diseases such as "cold" of eel; Improper feeding and excessive feeding not only waste bait, but also pollute water quality, leading to a large number of pathogenic bacteria. Insufficient feeding can easily make Monopterus albus eat each other, hurt the body surface and reduce the defense ability against diseases. In addition, when fresh bait is used, it is easy to cause gastrointestinal diseases of Monopterus albus due to improper preservation.
The entry of harmful substances, such as toxic wastewater from factories, pesticide residues in farmland, a large amount of domestic sewage flowing into water bodies, and self-administration of drugs, will cause poisoning, distortion or a large number of unexplained deaths of Monopterus albus.
1, hemorrhagic disease
Aeromonas. Causing gram-negative flagella. There are also secondary hemorrhagic diseases and enteritis caused by parasites.
Epidemic usually occurs in the high temperature season from May to September, with a high incidence rate, which is one of the more serious diseases.
The symptom of hemorrhagic disease of Monopterus albus is that with the development of the disease, there are different degrees of congestion in various parts of the body. There are bleeding spots in gill, liver and kidney of diseased Monopterus albus, and yellowish transparent or red liquid accumulates in abdominal cavity and intestine.
(1) acute type: there are more blood and mucus mixtures in the chest and abdomen, congestion in the heart and rectum, and a few sesame-sized bleeding spots in the endocardium;
(2) subacute type: the chest and abdomen are filled with a mixture of purple-black blood and mucus, which is more than acute type; The liver has bleeding spots the size of mung beans, liver swelling, color fading, punctate bleeding of rectal mucosa and so on.
(3) Chronic type: the chest and abdomen are filled with a mixture of purple-black blood and mucus, with hepatomegaly and bleeding spots the size of mung beans. There are bad blood spots the size of mung beans in some parts. Diffuse bleeding of small intestine and rectal mucosa. Aeromonas can produce a certain amount of toxin because of bleeding symptoms from skin to organs, especially severe liver injury, so it is called hemorrhagic septicemia of Monopterus albus.
Precautionary measures: use chlorine dioxide effervescent tablets regularly, and put 5-8 tablets or 2-3 mu/bag of high-efficiency detoxification and water purification treasure in each cage to adjust the water quality, 15-20 days.
External treatment scheme: 50 cages/bottle of gold iodine or concentrated glutaraldehyde were used for external use on the first day, 20-30 cages/bottle of new generation Baoxuekang on the second day, and 50 cages/bottle of Zhixueling on the third day, with remarkable effect.
Oral administration: add 100g of florfenicol or eel blood-releasing kang+100g of hemostatic powder+100g of eel multi-vitamin or gold partner+100g of Jiedu Stress King every 50kg of feed, and feed for 3-5 times continuously.
2, enteritis
Pathogenic Aeromonas punctata. The onset conditions are:
(1) bacterial infection caused by stale feed;
(2) Poisoning is caused by toxins produced after the spoilage of bait;
(3) Overeating causes indigestion;
(4) The deterioration of water quality leads to intestinal infection.
Symptoms are slow activity, no eating, dark body color, emaciation, intestinal congestion, yellow mucus flowing out, red and swollen umbilicus, and purple in severe cases.
External treatment scheme: water disinfection of gold iodine or compound glutaraldehyde 2-3mu/ bottle is used alternately;
Oral: Changyanning or eel Changbao 2-4g+ eel multivitamin 4-6g/kg feed.
4. Rot skin disease (printing disease)
Pathogen Aeromonas hydrophila, aeromonas sobria.
The sick eel can't move and sticks its head out of the water all day. There are many round erythema of different sizes on the body surface, mostly on both sides of the abdomen. Some will have purple spots the size of broad beans in the abdomen, and serious epidermis will rot into funnel-shaped holes. If you peel off the rotten skin, you can often see the rotten skin and internal organs.
Preventive measures (1) Changing the pool water frequently and maintaining good water quality is one of the important preventive measures;
(2) Spraying 0.2~0.3ppm chlorine dioxide solution or chlorine monochloride effervescent tablets to the whole pool while adding fresh water has good curative effect;
(3) It is best to use 3~5 mu/bag of high-efficiency detoxification water purification treasure or Qingshui Jiedu Ling every half month.
Treatment plan (1) 100ml+200ml/ mu for external use? Sprinkle rice all over the pool;
(2) Use Jiedu Stress King or Hemostatic Powder 150g/ mu? Sprinkle rice all over the pool;
(3) Oral administration of 10% florfenicol or eel septicemia+eel multivitamin for 3-4 days at the same time, and the preventive dose will be halved.
5. Erythema hemorrhagic disease
The peak of the disease is from mid-September to the end of winter, especially when the water quality is seriously deteriorated. Strong food intake and high water temperature, a large number of excreta, residual bait and the accumulation of dirt in cages have caused the deterioration of water quality and the proliferation of bacteria. At the same time, the self-purification ability of water body becomes worse with the increase of eel individuals. In addition, the aquatic plants in the tank are dense, and the residual bait and feces at the bottom of the tank are anaerobically decomposed to produce harmful and toxic gases, which makes the eel deeply infected.
The symptoms of sick eel are bleeding, redness, hemolytic red blood spots all over the body, oral bleeding and redness of hepatic portal. Anatomy of the diseased eel showed that the liver was big and black, the gallbladder was swollen, the body cavity was filled with reddish blood, and the mucosa of the body cavity was necrotic. This disease is harmful to eels.
Prevention and treatment of hemorrhagic diseases.
6. erythroderma
Pathogenic Pseudomonas fluorescens, Gram-negative Bacillus. Widely exists in water and soil, without spores. Incidence is often related to fish injury, and it is a conditional pathogen.
Symptoms The sick fish are slow and weak, all of them are out of the water, with local bleeding and inflammation, erythema, mostly abdomen, serious body surface rot and intestinal bleeding and inflammation. The difference from hemorrhagic diseases is that they can't turn around.
Preventive measures are the same as corruption.
Treatment plan (1) gold iodine or bacterial poison 150ml+ hemostatic powder 200g/ mu? Sprinkle rice all over the pool;
(2) Take Huangpi Kang Xue+Jiedu Stress King+Huangpi Vito orally for 3-5 days.
7, skin mold (water mold, white disease)
Pathogen The disease is caused by Monopterus albus biting each other due to excessive stocking density or insufficient bait, fishing in another pond, and the wound is infected with mold (fungi), which mostly occurs in the low temperature season below 20 degrees.
Symptomatic fish have cotton-wool-like gray hyphae on the body surface or fins, so it is also called white disease. In severe cases, the mycelium is thick and dense, the fish body is overloaded, swimming slowly, appetite decreases, and finally dies. Sometimes the wound is congested or hyphae fester. The ulcerated epidermis falls off and can be infected with bacteria again and die.
Preventive measures (1) Clean the pond thoroughly with 200mg/kg quicklime or 20mg/kg bleaching powder, soak the eel fry with 2ppm water mill and release them;
(2) the same corruption.
Can the treatment plan be 2-3 mu of water mold? Rice splashed all over the pool.
8.catching a cold
The causes mostly occur in the process of transportation, raising eel species and changing water. The water temperature is high or low, or the water is suddenly changed in large quantities. Generally, if the temperature changes more than 5 degrees in a short period of time, it will get sick. Causing fish physical dysfunction and death. This reaction shows that Monopterus albus has weak anti-stress ability.
Symptoms are general. When the sick eel gets the disease, its head is big, its head protrudes out of the water, its movement is slow, and its gill tissue has obvious erythema.
(1) Operate cautiously to minimize the stress reaction caused by improper operation;
(2) Maintain the water level and change the water reasonably to avoid sudden change of water temperature;
(3) It is best to choose sunny days for seeding, pond turning and fishing.
External treatment plan: sprinkle cold medicine, a new generation of Baoxuekang+Jiedu Stress King, 30 boxes/bottles/bags with water, and use it for 3-5 times in severe cases;
Oral administration: Monopterus albus compound vitamin 5g+ enrofloxacin soluble powder 3g/ kg feed for 2-3 days.
9, big head disease
Etiology The peak of this disease occurs from late August to before stopping eating in winter, or after stopping eating. In high temperature season, Monopterus albus has a large food intake and a large amount of excrement, and aquatic plants in the cage grow intensively, and a large amount of residual bait feces at the bottom of the box are anaerobically decomposed, resulting in harmful gases such as ammonia, hydrogen sulfide and biogas. Causing chronic poisoning of eels. At the same time, ponds with too dense cages, too high stocking density of eel fry or poor self-purification ability of water bodies are prone to this disease.
Symptoms The diseased eel has swollen head, white eyes, blindness and white hair on its mouth. There is no obvious hemorrhagic erythema on the body surface, general weakness, mouth opening from time to time, congestion of oral mucosa, and purulent mucus flowing out of genital orifice. Dissecting the diseased eel, it was found that the mucous membrane of the body cavity was ulcerated and fell off in pieces, and the space between the skin and muscle tissue of the head was filled with yellowish water. The disease occurred in Monopterus albus, which was harmful.
Precautions: A small piece of aquatic plants or a part of water surface can be removed in the later stage of culture to keep the water quality in the box stable. Usually, high-efficiency Jiedu Shuibao and Qingshui Jiedu Ling are used to improve water quality, quickly decompose dead organisms, feces and residual bait in water, and then make full use of algae to stabilize PH value. Dilute with gold iodine (0.6ml/m3 water) regularly, then spray disinfection in the whole pool, and take Gandan Yikang and Monopterus albus orally.
10, leech disease
The pathogen is caused by leech parasitism.
Harm Because leeches (leeches in China) are adsorbed on the surface of Monopterus albus, bacterial infection is caused, which slows down the activity of sick Monopterus albus, reduces its appetite and affects its growth. When Monopterus albus is cultured by soilless method, it is beneficial to cultivate water hyacinth in pond, but it is easy to bring leeches (leeches like to hide in the roots of water hyacinth).
Precautions: The aquaculture water should be filtered to prevent leeches from entering the aquaculture water.
The treatment plan uses 3-4 mu/bottle of chlordimeform? Rice splashed all over the pool.
1 1, fever
The disease mainly occurs during transportation. Due to the high density and long transportation time, the mucous membrane on the body surface is decomposed by microorganisms in the water, which consumes a lot of oxygen and releases heat, resulting in a sharp rise in water temperature (up to 50℃), which causes the bottom eel to entangle and die, and sometimes the mortality rate can reach 90%.
Preventive measures to control reasonable stocking density and transportation density; Choose the morning or evening when the temperature is low during transportation; Avoid deterioration of water quality.
In the treatment scheme, the surface sediments and intestinal contents of Monopterus albus were removed by storage before transportation and frequent water exchange. At the temperature of 23-30℃, completely change the water 1 time every 6-8 hours, or apply a certain amount of penicillin in the water every 24 hours, and the dosage is 300,000 units per 250 liters of water, which can achieve good results. After the box is taken out, the whole pool is sprinkled with detoxification stress king or high-stability VC or a new generation of Baoxuekang.
12, mouth hardness
Etiology Paragonimus parasitizes in a large number of intestines, which causes fry to shut up and not eat, swim weakly and cluster with the wind.
The treatment plan should pay attention to the eradication of Oncomelania hupensis.
External use: spray 3-5 mu/bottle of chlordimeform to kill larvae in water;
Oral: Changchongqing 1-2g/ kg feed.
13, hepatobiliary syndrome
Etiology From the current research results, there are five main causes of hepatobiliary syndrome:
(1) Long-term intake of high-protein feed;
(2) Detoxification function can't keep up with rapid growth;
(3) The culture density is too high, and the water quality environment deteriorates;
(4) Liver injury caused by drug abuse;
(5) The rancidity and deterioration of feed, the imbalance of nutrients and the lack of toxic substances and vitamins in feed lead to fish diseases characterized by hepatobiliary diseases, that is, fish hepatobiliary syndrome.
Symptoms Monopterus albus liver enlargement, gallbladder enlargement, no food in the intestine, and some body bleeding. Sick fish crawl on the grass day and night, and will die slowly within 1-2 days, with a high mortality rate.
Preventive measures: feed high-protein feed reasonably, and add 5 g Gandan Yikang +6 g Monopterus albus multivitamin +5g/ kg Sanhuang powder to the feed every15th day for 5-7 days.
Treatment plan: 1, fasting for 3 days. 2. Reduce the proportion of granular materials. 3. Oral administration of the mixture of 7 g Gan Dan Yi Kang +8 g Monopterus albus multivitamin +5g/ kg Jiedu Stress Wang, 6 days is a course of treatment. The specific operation is as follows: first, stop eating for 3 days and let the eel excrete toxins as much as possible; On the fourth day, the feeding amount of granular materials was halved, and the feeding amount of granular materials was increased appropriately by adding 7 g of Gandanyikangkang+8 g of Monopterus albus compound vitamin+5g/kg of Jiedu Stress King. Feeding for 6 days was a course of treatment, and the drug was stopped on the seventh day.
14, mad disease
The disease is also called horse racing, running and cramping.
The cause of the disease is that eel seedlings have just come out of the box, and they mutate due to the inadaptability of weather and environment, resulting in a strong stress response.
After diagnosis, the sick eel swam like an arrow in the water or entangled with aquatic plants, and its muscles twitched and trembled. When the water becomes clear, you can also see the sick eel struggling in an "S" or "O" shape. The sick eel has obvious stiffness, mouth opening, little or no mucus, no obvious damage, and the mortality rate after onset is extremely high.
therapeutic regimen
(2) The seedlings should avoid sudden weather as much as possible;
(3) Don't use ice water, well water or water with large temperature difference with the pool water for seed transportation. Choose sunny days when entering the box, and adjust the temperature difference of water to be no more than plus or minus 2 degrees. Soak with Jiedu Stress King+Monopterus albus multidimensional or high stability VC before entering the box;
(4) Use Jiedu Likang or Gao Wen VC5 7 days after unpacking.
Treatment: external essence+new generation Baoxuekang, or Yiwei pill+Jiedu Stress King, used alternately twice, 65438 0 times a day.
15, rotten tail disease
The pathogen is Aeromonas, which is a conditional pathogen, and it is easy to occur in the pond or transportation of high-density cultured Monopterus albus.
Symptoms The diseased eel's tail is inflamed and congested, and then the muscles rot and turn white, which makes the tail stalk or tail muscle rot, the tail spine is exposed, and the head of the diseased eel sticks out of the water, which makes it slow to react and unable to move.
Preventive measures: compound glutaraldehyde or gold iodine 200ml/ mu for external use? Rice splashed all over the pool.
After the onset of the treatment scheme, the water body was disinfected 1-2 times with compound glutaraldehyde or gold iodine 2-3 mu/ bottle, and 100 kg feed (including fish) was taken orally 100g eel septicemia stop+100 g Sanhuang powder+100.
The general principle of raising Monopterus albus is: "feed grass well, remove poison well, feed seedlings well and manage water well". In the process of Monopterus albus culture, it is difficult to observe at the initial stage of the disease. Once obvious symptoms appear, no matter how to treat them, they may bring certain losses to the whole culture. Therefore, we must adopt the policy of "comprehensive prevention, active treatment, and prevention is more important than treatment". The prevention work focuses on maintaining the ecological balance of the water environment in the cage, ensuring the optimization of the living environment of Monopterus albus as much as possible, adding appropriate drugs and health products to the bait regularly, enhancing the immunity of Monopterus albus, and insisting on checking the damage and feeding of the cage every day. Once there is an abnormal situation, measures should be taken immediately to control the disease.
Classic prescription recommendation: prevention 1, soaking seedlings before releasing seedlings: detoxification stress Wang Hua soaking seedlings, each generation can soak Monopterus albus seedlings 1000-2000 kg. 2. Stress reaction after seedling release: Day 1: A new generation of Baoxuekang was used externally in the morning and Jiedu Stress King was used externally in the afternoon; The second and third days; The fourth day of eating: a new generation of Baoxuekang is used externally in the morning and eel is used externally in the afternoon. Oral administration of enrofloxacin soluble powder and detoxification stress king at the same time; The fifth, sixth and seventh days are the same as above. 3. Oral comprehensive prevention: take Gandan Yikang orally for 6 days, Insecticidal Ling orally for 4 days, enteritis spirit orally for 4 days, Gandan Yikang orally for 6 days, and enteritis spirit orally for 4-6 days, and then take the medicine as above. 4. Comprehensive prevention for external use: disinfectant (gold iodine, chlorine dioxide effervescent tablets, concentrated glutaraldehyde, Zhixueling, etc. ) 1-2 days, drug withdrawal for 4-5 days, Qingshui Jieduling or Qingshui Jiedubao 1 day, and photosynthetic bacteria or other beneficial bacteria 1-2 days. Half a month 1 time.
Treatment 1, cold: external use of new generation Baoxuekang+oral administration of new generation Baoxuekang+oral enrofloxacin soluble powder+oral administration of high stability VC+, 4 days as a course of treatment. 2. Enteritis: external disinfectant+oral enteritis spirit and Sanhuang powder. 3, water mold: external disinfection fungicide. 4, India disease: external use of chlorine dioxide effervescent tablets and Qingshui Jieduling alternately. 5. Hemorrhagic diseases: external use of gold iodine+Qingshui Jieduling+Zhixueling, and oral administration of Zhixuesan+Gao Wen VC+ florfenicol soluble powder.
Catalogue of fish medicine products
20 12 commodity price list
Commodity name, main components, main uses, packaging specifications, reference dosage and unit price
Oral drug series of hemostatic florfenicol is mainly used for bacterial bleeding 200g/ generation× 50 generations/tablet, and the addition amount is 2-3 ‰ 20.
Florfenicol soluble powder florfenicol is mainly used for bacterial bleeding 200g/ bottle× 40 bottles/tablet, and the addition amount is 2 ‰ 26.
Serafloxacin hydrochloride is the bane of septicemia, which is mainly used to treat bacterial septicemia and ascites. 200g/generation× 50 generations/piece. The addition amount is 2-3 ‰ 16.
Enrofloxacin soluble powder Enrofloxacin is mainly used for bacterial diseases 200g/ generation× 50 generations/tablet, and the addition amount is 2-3 ‰ 16.
Enteritis spirit norfloxacin is mainly used for treating enteritis syndrome at 200g/generation × 50 generations/branch, and the addition amount is 2-3 ‰ 9.
Rifampicin Rifampicin is mainly used for bacterial diseases 200g/ bottle× 40 bottles/tablet, and the addition amount is 2-4 ‰ 26.
Erythromycin soluble powder Erythromycin thiocyanate is mainly used for bacterial diseases 200g/ bottle× 40 bottles/tablet, and the addition amount is 2-4 ‰ 22.
Zhixue Powder K3 is used for adjuvant treatment of hemorrhagic diseases 200g/ generation× 50 generations/tablet, and the dosage is 2-4 ‰ 7.
Detoxification and anti-stress vitamins, amino acids, detoxification and anti-stress, and improve the survival rate by 200g/ generation× 50 generations/tablet. The addition amount is 2-3‰ or 10 for external use of 4-6 mu per generation.
High-stability VC can resist stress and reduce the incidence 100g/ generation× 50 generations/piece. The addition amount is 1-2 ‰ 5.
Insecticidal albendazole is mainly used to treat intestinal parasitic diseases 200g/generation× 50 generations/animal. The addition amount is 2-4 ‰ 14.
Baoganling Gentiana, Herba Artemisiae Scopariae and Chondroitin are mainly used to treat hepatobiliary diseases, 200g/generation× 50 generations/tablet, and the addition amount is 2-4 ‰ 9.
Sanhuangsan rhubarb, phellodendron bark, scutellaria root and astragalus root are used for clearing away heat and toxic materials, and are used for treating bacterial and viral diseases at a dosage of 2-4 ‰ 7.
Astragalus polysaccharide, various amino acids, vitamins and electrolytes are mainly used to treat vitamin deficiency 200g/ generation× 50 generations/tablet. The dosage is 1-4 ‰ 8.
Astragalus polysaccharide, various amino acids, vitamins and electrolytes are nutritionally expressed, which is mainly used to treat vitamin deficiency 200g/generation× 50 generations/tablet. The added amount is 1-4 ‰ 10.
Allicin for detoxification, sterilization and food attraction is 500g/ generation× 24 generations/tablet, and the dosage for external use is 1‰ or 1 1.
Monopterus albus special medicine series: florfenicol for stopping Monopterus albus septicemia, hemostatic factor and synergist are used to treat bacterial septicemia such as Monopterus albus loach. 100g/ generation× 50 generations/piece, and the addition amount is 2-3 ‰ 10.
Salafloxacin hydrochloride of Monopterus albus Bleeding Kang is used to treat bacterial septicemia of Monopterus albus and Misgurnus anguillicaudatus 100g/ generation× 50 generations/strip, and the addition amount is 2-3 ‰ 8.
Astragalus compound vitamins Astragalus polysaccharide, amino acids, vitamins and electrolytes can supplement various amino acids and vitamins needed for the growth of Monopterus albus and Misgurnus anguillicaudatus, and enhance immunity 100g/ generation× 50 generations/tablet. The addition amount is 1-4 ‰ 3.
Monopterus albus multi-dimensional astragalus polysaccharide, various amino acids, vitamins and electrolytes can supplement various amino acids and vitamins needed for the growth of Monopterus albus loach and enhance immunity. The dosage is 100g/ generation× 50 generations/piece, and the dosage is 1-4 ‰ 4.
Eel Changbao is used to treat bacterial enteritis of Monopterus albus100g/generation× 50 generations/strip, and the addition amount is 2-4 ‰ 6.
Hepatobiliary immunity: Radix Gentianae, Herba Artemisiae Scopariae, Chondroitin Chloride, Astragalus Polysaccharide, Cortex Cinnamomi Japonici, Radix Isatidis, Radix Angelicae Sinensis, Fructus Gardeniae, and Radix Glycyrrhizae are used to treat hepatobiliary syndrome of Monopterus albus and Misgurnus anguillicaudatus at a dosage of 100g/ generation× 50 generations/strip of 2-4‰.