CATDOLL : CATDOLL: Rapid diagnosis and prevention technology of fish diseases?

1. Rapid diagnosis and prevention technology of fish diseases?

There are many types of fish diseases. Generally, we first observe whether the fish has surface damage, such as body rot, skin rot, gill rot, tail rot, bleeding, etc., and then use a microscope to check whether there are parasites. Then we further dissect the sick fish to observe whether there is enteritis, intestinal ascites, anal swelling, liver enlargement, liver rot, liver erosion, etc. Finally, we test the pond water quality indicators, conduct a comprehensive analysis, and conclude that if we can treat the disease, the chance of cure is still very high! But generally speaking, even if the farmed species can be cured, losses are inevitable. If the treatment is not timely or the right medicine is not given, a large number of deaths may occur, resulting in heavy losses!

Therefore, it is recommended that farmers do a good job of prevention in daily life, adjust the water, improve the bottom, disinfect and sterilize regularly, so as to reduce the chance of disease in farmed animals.

2. Identification and prevention of common fish diseases?

Hello, there are many common fish diseases. Here are some common fish diseases and their identification and prevention methods:

1. White spot disease

Identification: Small white spots appear on the fish's body. In severe cases, the fish's body is covered with small white spots, the fish swims slowly, and has no appetite.

Prevention and control: White spot disease drugs can be used for treatment, or salt water can be added or the water temperature can be increased to improve water quality. At the same time, feed nutrition can be strengthened to enhance fish resistance.

2. Fish mold disease

Identification: Grayish white or black fluffy substances appear on the fish's body, mucus secretion on the fish's surface increases, the fish swims slowly and has no appetite.

Prevention and control: Fish mold disease drugs can be used for treatment. At the same time, the water quality must be kept clean, excessive feeding and excessive density must be avoided, and feed nutrition must be increased.

3. Saprolegniasis

Identification: White or gray fluffy substances appear on the fish's body, mucus secretion on the fish's surface increases, the fish swims slowly and has no appetite.

Prevention and control: Saprolegniasis drugs can be used for treatment. At the same time, the water quality must be kept clean, excessive feeding and excessive density must be avoided, and feed nutrition must be increased.

4. Exophthalmos

Identification: The fish's eyes are bulging, the surface of the eyes is red, the fish swims slowly, and has no appetite.

Prevention and treatment: You can use drugs to treat exophthalmos. At the same time, ensure the water quality is clean, avoid excessive feeding and excessive density, and increase feed nutrition.

5. Fish rot

Identification: Ulcers appear on the fish's body, mucus secretion increases on the fish's surface, the fish swims slowly and has no appetite.

Prevention and control: Fish ulcer disease drugs can be used for treatment. At the same time, the water quality must be kept clean, excessive feeding and excessive density must be avoided, and feed nutrition must be increased.

The above is only a brief introduction to common fish diseases. Different fish diseases have different identification and prevention methods. It is recommended that fish farmers detect fish diseases in time during the breeding process and take correct prevention and control measures to ensure breeding benefits.

3. How to diagnose and prevent peacock mycoplasma disease?

Mycoplasma disease, also known as chronic respiratory disease, is a chronic, contact respiratory infectious disease caused by avian septicemic mycoplasma. [Pathogen] Septicemic mycoplasma. [Epidemic characteristics] Young peacocks are more susceptible than adult peacocks. It can be transmitted through breeding eggs, air, feed, drinking water, egg boxes and utensils. Prevention] ① Strictly prevent the invasion of infectious sources. When introducing breeding peacocks, young peacocks or breeding eggs, you must investigate and understand, purchase them from disease-free peacock farms, and conduct serological quarantine when necessary. ② Protect the mycoplasma-free peacock group, strictly isolate and disinfect, and the breeding peacocks and young peacocks must be isolated and observed for 2 months after introduction. They can only be raised in groups after being checked and confirmed to be disease-free.

③ Prevent cold, heat, humidity, crowding, secondary diseases and stress, and keep the peacock house well ventilated. Give anti-disease drugs 2 to 3 days before and after vaccination.

4. Diagnosis and prevention of ginger stem base rot?

1. Symptoms: In the early stage of ginger stem rot, water-soaked spots of varying sizes appear at the stem base, gradually expanding, and the leaves turn yellow. In the late stage of the disease, the spots surround the stem base, causing the stem base tissue to gradually rot. Due to the obstruction of water and nutrient transportation, the main stem above ground dries up and dies from top to bottom, the leaves turn black and fall off, and appear to be withered. When the humidity is high, white cotton-like substances can be seen in the diseased part and the soil (usually 2 cm above the ground) when the soil is dug up. In severe cases, the plant begins to die, which is extremely harmful.

2. Transmission route: The pathogen overwinters in the form of mycelium on diseased ginger and diseased residues, or in the form of mycelium and thick-walled spores in the soil. The disease can occur when conditions are suitable. It usually starts in May, and the seed ginger with the pathogen can continue to develop disease after harvest, which lasts until the sowing in March of the following year.

3. Disease conditions: High temperature and high humidity are conducive to the occurrence of ginger stem base rot, and the suitable temperature for the disease is 20℃-25℃. Ginger is a light-loving and drought-tolerant plant, and is prone to disease in plots with poor ventilation and light transmission. Yellow mud loam and heavy clay soil are prone to severe disease. The amount of fungal sources in the field of continuous cropping plots accumulates, and the disease is more severe.

4. Prevention and control methods:

1. Chemical control: Based on the incidence of ginger stem base rot, the performance of our company's products and one year of field test experience, we have formulated the following control plan:

Prevention plan: ①. The pathogen of ginger stem base rot usually starts to be active in early May. At this time, you can use 500 times dilution of Orlike-Qingkulike to spray the stem base and irrigate the roots. Each plant needs about 200 ml, irrigate once every 5-7 days, and irrigate twice in a row. ②. During the peak period of stem base rot, generally in early June, mid-July and mid-August (generally during the third soil cultivation), use 500 times dilution of Orlike-Qingkulike and 600 times dilution of Orlike-Jiangwenjing respectively, and irrigate the roots at the same time. Irrigate once every 5-7 days in each period, and irrigate twice in a row.

Treatment plan: ①. Early stage of disease: Once stem base rot occurs, strong medicine should be used immediately. First, use scissors to cut the diseased plants off the ground and take them out of the ground. Then use 300-400 times dilution of Orlik-Qingkulike to irrigate the roots in the whole area or key areas (the area within 3 meters of the diseased area and its surroundings). Use the medicine once every 3 days and use it 2-3 times in a row. After the disease is under control, a preventive plan can be adopted. ②. For plots or areas with serious diseases in previous years or this year (for example, weather influence may cause the disease to spread rapidly), flood irrigation should be adopted in key areas (the area within 3 meters of the diseased area and its surroundings), that is, use 500 times dilution of Orlik-Qingkulike for flood irrigation, and the rest can be used for hole irrigation as appropriate; after 3-5 days, hole irrigation should be carried out again.

In mid-July (because the upper temperature is just right for the survival of the pathogen, so the plants must be sprayed) and mid-August, the period of high incidence of ginger stem base rot, ginger wilt also begins to occur, so prevention and treatment should be carried out together with ginger wilt. The main drug for the prevention and control of ginger wilt is Aolike - Jiangwenjing.

5. What is the relationship between the anatomical and physiological characteristics of chickens and the prevention and treatment of chicken diseases?

1. The anatomical and physiological characteristics of chickens have nothing to do with disease prevention. Disease prevention is a proactive behavior that takes appropriate measures to prevent chickens from getting a certain disease in the future. For example, making a Newcastle disease vaccine is to allow chickens to produce Newcastle disease antibodies under normal circumstances. If a strong Newcastle disease virus invades the body of the chicken in the future, the antibodies in the chicken will neutralize the strong Newcastle disease virus that invades the body of the chicken, thereby protecting the chicken from Newcastle disease.

2. The anatomical and physiological characteristics of chickens are related to the treatment of diseases in chickens. After a certain strong virus invades the chicken body, it will find the target organ in the chicken body and cause the target organ to develop lesions. Therefore, when dissecting, you can roughly judge what the disease is by seeing the diseased organ tissue. If you want to make an accurate judgment, you need to further examine the pathogenic microorganisms and do some related experiments. For example, the chicken's bursa of Fabricius is the target organ of the chicken bursal disease virus. When the bursa of Fabricius virus invades the chicken body, the chicken's bursa of Fabricius will develop lesions, which are different from normal bursa of Fabricius. Therefore, the anatomical and physiological characteristics of chickens provide a reference for the judgment of treating chicken diseases.

6. Identification and prevention of chicken diseases by looking at pictures. The chickens stopped eating when they got sick and later could not stand up. What disease is this?

Being unable to stand up is usually caused by bacterial infection. You'd better tell me the details and I can help you diagnose it.

7. How to diagnose and prevent American and European foulbrood?

American foulbrood is caused by Bacillus larvae. It usually infects 2-day-old larvae, and symptoms appear in 4-5-day-old larvae. Larvae that die after capping have sunken cell covers and pinhole-sized perforations. The surface of the capped spleen appears moist and shiny. The body color of the diseased larvae is pale, gradually turning light brown to brown-black.

After the larval tissue decays, it becomes sticky and has a fishy smell. It can be picked up with tweezers and pulled into 2 to 3 cm long filaments.

After the larvae's bodies dry up, they become scale-like and difficult to peel off, clinging to the lower wall of the nest cell.

European foulbrood is caused by Apis mellifera, etc., and the larvae are infected at 1-2 days old, and most of them die before they cap at 3-4 days old. The dead larvae are curled up in a spiral shape.

The diseased insects lose their natural luster, become swollen and yellow, and their body segments gradually disappear. The rotting corpses are slightly sticky but cannot be pulled into threads and have a sour and smelly smell.

The dead insects turn dark brown after drying and are easy to remove or be cleared by worker bees, while the honeycombs have the phenomenon of flower seeds. The above symptoms can be used to preliminarily diagnose the above two diseases. If conditions permit, they can be further confirmed by combining microscopy and serological diagnosis. Active prevention should be taken for these two larval diseases, good feeding and management of bee colonies should be done, and the apiary, bee tools and feed should be disinfected to strengthen epidemic prevention.

For sick bee colonies, the boxes and combs should be replaced and disinfected, and the combs with serious diseases should be burned.

After disinfection, the bee colony is treated with oxytetracycline hydrochloride soluble powder, 200 mg per colony each time, sprayed on the comb or fed, once every 4 to 5 days, for 3 consecutive times.

8. How to prevent and treat staphylococcal disease in chickens?

Staphylococcus aureus treatment. Many antibiotics and sulfonamides can kill staphylococci. For a chicken farm, which drug is the most effective and economical? It is necessary to conduct drug sensitivity tests on the staphylococci isolated in the farm and select the most sensitive drug for treatment to obtain satisfactory results. When the effect of a drug is not satisfactory, another drug should be replaced in time. Commonly used drugs are:

①Gentamicin: 4000 units per head, twice a day, for 3-5 days. ②Kanamycin: 2000-3000 units per head, twice a day, for 3-5 days. Or 4000 units per head in drinking water, for 7 days. ③Penicillin: 50,000-100,000 units per kilogram of body weight, twice a day, for 3-5 days. ④Midecamycin: 0.011% mixed with feed or drinking water, for 5 days. ⑤Sulfadimethoxine: Add 5 grams per kilogram of feed, for 3-5 days. ⑥Supplement 14: 0.2% in drinking water, once a day, for 7 days.

While using medication for treatment, use 0.3% peracetic acid, 0.1% Disinfectant King or 0.5% Bacterial and Virus Hostile Chicken House for disinfection. When the disease occurs, disinfect twice a day, once in the morning and once in the afternoon, with a dosage of 20 to 30 ml of disinfectant per square meter.

9. How to diagnose and prevent symptoms of diseases and pests of Bletilla striata?

It needs to be done in a timely and correct manner. First of all, Bletilla striata is susceptible to a variety of viruses and bacteria, which is mainly manifested by the gradual yellowing of leaves, accompanied by symptoms such as rot, stains and key point death. Secondly, the main diseases and pests of Bletilla striata include potato armyworm, cabbage armyworm, whitefly, etc. These diseases and pests will cause poor growth and development of Bletilla striata, and in severe cases affect the yield and quality. Therefore, it is very necessary to detect and take measures as soon as possible. The most effective prevention and control method is to take corresponding physical or chemical prevention and control measures according to different types of diseases and pests. At the same time, attention should also be paid to reasonable planting pairing, timely irrigation and fertilization management and other measures to ensure the healthy growth of Bletilla striata. In short, the prevention and control of diseases and pests of Bletilla striata requires continuous exploration and practice, and effective prevention and control has become an issue that must be paid attention to in the current production of Bletilla striata.

10. Diagnosis and prevention of diseases and pests of Wogan?

1. Red spider

Red spider mites are present all year round. Once infected, the leaves, fruits and branches of the mandarin orange will be damaged. This pest reproduces quickly and is currently the biggest pest of the mandarin orange.

Prevention and control methods: Generally, pesticides are sprayed to control the problem. Ethiophanate-methyl, spirocyclopentane or ethoxyfen are diluted with water to 2000-3000 times the liquid level. Farmers in Shanglin County planted ageratum between the ridges of Wogan trees to attract red spider mites and reduce the damage to Wogan. This special grass-retaining planting method not only maintains soil fertility but also reduces the use of pesticides. It protects the environment while ensuring the quality of Wogan.

2. Ulcer disease

Canker is a bacterial disease that spreads through wind and rain, and the outbreak time is uncertain. When the Wogan is infected with canker, the leaves and fruits will develop disease spots and then fall off, seriously affecting the yield and quality of the fruit.

Prevention and control methods: (1) Use 1000-1500 times diluted copper hydroxide or copper rosinate for prevention and control;

(2) The compound medicine should be sprayed after a heavy rain. If the tree has been infected with canker, the diseased branches should be cut off and lime sulfur, chlorpyrifos, etc. should be used again for prevention and control when the new branches grow to 2 cm. During the prevention and control period, pay attention to regularly changing the type of medicine to prevent the development of drug resistance.

3. Anthrax

Anthracnose is most prevalent in April, May, July, August and September each year, and can cause damage to the leaves, fruits and branches of the mandarin orange, leading to withering of the treetops and rotting of the fruits.

Prevention and control methods: Anthracnose, gray mold, scab, and spot are collectively referred to as fungal diseases. These diseases can be controlled by applying 1500-2000 times dilution of pyraclostrobin, prochloraz, or methocarb. Attention should also be paid to strengthening field management and ventilation.

4. Huanglongbing

Characteristics of damage: Huanglongbing is a bacterial disease that is extremely harmful to mandarin oranges, second only to red spider mites; the outbreak period is the same as that of psyllids, which is July to August each year.

Prevention and control methods: There is currently no effective drug for the prevention and control of Huanglongbing, so prevention should be the main approach. When selecting seedlings, choose healthy seedlings that are free of diseases and pests. At the same time, strengthen cultivation management and use thiamethoxam drugs such as Alicar, which is a specific drug for controlling citrus psyllids, for prevention.

5. Citrus psyllid

Citrus psyllid is the main route of transmission of Huanglongbing disease, which will affect the normal growth of Wogan oranges.

Prevention and control methods: Generally use 1500-2000 times dilution of imidacloprid, acetamiprid or thiamethoxam for prevention and control. For other methods, refer to Huanglongbing