"Cultures for raising cages" can create an annual net income of $8,000 in a one-to-one pool. The main technical methods are described below.
1 In Dianchi Lake, cement ponds were built to raise razor clams. Because of the violent nature of the scutellum, the body was easily scratched by rough cement pool surfaces and brick corners during swimming, and the death rate was usually high. Inspired by fish culture in cages, a cage was used to raise yellow vines. A 1.2-meter-long rectangular earthen pond was dug at one point, and 24-30 meshes per square centimeter of polyethylene were used to cover the bottom of the pool and around the net. 40 centimeters thick soil, soil species of Saussurea and other aquatic plants. Construction of the intake and drainage systems, glass fiber reinforced plastic tiles to prevent escape facilities. The cost of repairing the earthen pond was reduced from RMB 10 per square meter of the original cement pond or brick pool to RMB 3 per square meter.
2 The seedling stocking pond is soaked and sterilized for half a month. From the end of March, the wild seedlings are to be purchased from local farmers and fisheries. The specifications are generally 20-50 g/tail weight, and the seedlings will be sorted according to the seedling size specifications. The seedlings are soaked with 3 to 4% salt water for 15 to 20 minutes and then placed in a carp pond that has been placed in cages. The density is controlled at about 60 to 80 tails per square meter (2.5 kg) and the pool is squared. Rice is stocked with 3 to 4 tails of loach, which can improve feed utilization and avoid the occurrence of fever.
3 Feeding management
3.1 Reasonably feed the feed. After the seedlings enter the pond, they must perform the feeding work immediately. When they enter the pool, they generally do not feed. Three to five days later, animal and plant feeds are used as mixed feeds. The feed is fed every other day. The amount of feed is very small. , Gradually increase, start feeding time from the evening, and gradually transition to the morning. After the end of the training, according to the "four principles" principle, the total weight of 6-7% of the feed is fed daily, and the residual feed must be removed in time on the next day.
3.2 Water quality and water level regulation. As Dianchi Lake is planted with aquatic plants such as Saussurea, it is well-watered and dissolved in oxygen. It adapts to the requirements of the growth of Astragalus membranaceus, but it still takes 6-8 days to change the water in spring and autumn, and it uses micro-fluid water to raise earthworms in summer. Where there is a lack of water, the water can be exchanged once every 2-3 days, and the amount of water exchanged accounts for about 1/2 of the whole pool. In the growth period of Astragalus, the water depth can generally be maintained at about 10-25 cm.
3.3 Others. To prevent high temperatures in summer, you can plant a loofah, lentils, and other climbing plants in shade ponds to shade from the sun, and in winter, to prevent freezing, deepen the water level to 50-60 cm. In the daily routine management, it is also necessary to pay attention to anti-escape work, and frequently check the blocking of the entrance and exit openings and the escape prevention facilities. In particular, after the rain and flood season, the anti-escape work should be stepped up.
3.4 The sub-standard sales to the end of the year up to 6-8 kg per square meter production.
4 Disease Prevention and Control
4.1 Plum spot (red spot). Caused by bacteria, a yellow round lesion of soybean to fab bean size appears on the back of the diseased louse. Three to five quails are stocked in Dianchi Lake to prevent this disease. If you are sick, you can use the already peeled skin, into the pool of water, scrubbing, after 2-3 days of continuous treatment of the disease.
4.2 Fever. The disease is mainly due to excessive stocking density, mucus secretion on the surface of the carcass, the accelerated decomposition of microorganisms in the water, consumption of dissolved oxygen in water, release of heat, so that due to lack of oxygen and phlegm, anxiety, intertwined; cause a lot of death. Mixed in the pool 2000-3000 grams of loach, to reduce the winding twist, can prevent the disease, such as the onset, should thoroughly change the water, and use 0.7ppm copper sulfate Quanchiposa, have a certain effect.
4.3 Print disease. Control methods: (1) Astragalus pre-stocking pool water with 20-25ppm quicklime disinfection (Note: 1ppm = 1 millionth), a week later put Astragalus, Huangqi body with 3% saline or 10ppm (bleach) dip 3 - 10 minutes to kill bacteria or parasites. (2) New water is injected every 2-3 days during the onset of the disease, and it is better to use microfluidic water for raising leeches. (3) Use 1-2ppm bleaching powder sprinkled all over the pool for 3 days.
4.4 Aquatic mycosis This disease is caused by mechanical damage or mutual bite of the carcass and infestation by predator organisms. The wound is infected by water mould. The initial symptoms were not obvious. After a few days, the hairy mycelium was affected by the director, and the muscles were eroded. The swimmers isolated from the acupuncture points and lost their appetite and eventually died of weight loss. In addition, the seedlings were also susceptible to water fungal infection during hatching. Its prevention methods: 1 disinfection with ash can prevent this disease. 2 Avoid bumps during operation. 3 In the onset period, 5% iodine or 1% malachite green ointment can be used to wipe the affected area, and saline can also be used to dip for 5 minutes. 4 It can be splashed with 0.4% saline and 0.4% baking soda. The effect is obvious.
4.5 erythroderma disease This disease is mostly caused by fishing or transport trauma, bacteria invade the skin and cause. The symptoms are localized bleeding on the surface of the body and exfoliation of the scales, especially on the abdomen and on both sides. The symptoms are massive, with peak incidence in the late spring and early summer. Its prevention and control methods: (1) Using bleach powder to throw water evenly across the pool, so that the pool water is 1ppm. Purge the affected area with 25-10% saline or soak it in 2.5% saline for 15 minutes.
4.6 Bacterial enteritis: Symptoms of the disease: Sickness, slow movement, dark body color, especially the most obvious head, erythema in the abdomen, anal swelling, light abdominal pressure with pus outflow, no food in the intestines, local or total Congestion and inflammation. Control methods: 1 Disinfection with quicklime, 20g of lime per square meter. 2 strengthen the feeding and management, do not feed rotten degenerate feed, timely elimination of residual bait. 3 During the onset of the disease, 50 grams of astragalus were fed with 5 g of sulfathiazole or 1 g of furazolidone and fed for 3 to 5 days. 4 The treatment needs to be combined with oral administration and external use. The topical drugs are usually 1-2ppm bleach or 10ppm quicklime, and 0.2-0.3ppm poultry erythromycin can be used to sprinkling the whole pool. 5 For each 50 kg of Astragalus, 250 grams of garlic and 250 grams of salt were smashed, mixed with bait and fed for 3 to 5 days.
4.7 Tail disease The disease is caused by a bacterium in Aeromonas sobria. The tail of the disease is inflamed and congested, followed by muscle necrosis and rot. As a result, the caudal peduncle or tail muscle rots and the tail spine is exposed. The disease is prone to occur in intensive culture ponds and transportation, which seriously affects the growth of carp. Once this disease occurs, treatment is very difficult. Therefore, we must pay attention to prevention. Control methods: 1 Pay attention to the water quality and environmental sanitation of Dianchi Lake to prevent bacteria from multiplying and reduce the occurrence and harm of the disease. 2 This disease can be used 0.24ppm furan ketone Quanchiposa. 3 The disease can be disinfected with 0.25 units/ml chlortetracycline.
4.8 The appetite of the diseased larvae is severely reduced. The body becomes darker, and the anus is red and swollen. After the anatomy, the intestine has visible white strip worms, which can contract and have a body length of 8.4-28 mm. The snout firmly penetrates into the intestinal mucosa and absorbs its nutrition, causing intestinal congestion and inflammation, obstructing the intestinal tract, and making part of the tissue. Hyperplasia or hardening, can cause intestinal perforation in severe cases, causing jaundice death, prevention and treatment methods: 1 drug clear pond disinfection, with 0.5ppm 90% crystal trichlorfon Quanchiposa, can prevent this disease. 2 Each 50 kg of Astragalus was fed with 5 g of 90% crystal trichlorfon and fed for 6 days. 3 The viscera should be buried deep in the soil and must not be lost.
4.9 Capillary nematodes often have their heads protruding from the water and their abdomen upward. Other symptoms are associated with spineworm disease. After an anatomical visual inspection, there is a small, milky-white line of trichinella, with a body length of 2–11 mm. The head penetrates into the mucosal layer of the intestine, destroys the tissue, and causes the intestinal bacteria to invade the intestinal wall, causing inflammation and ulceration. A large number of parasites can cause death. Control methods: 1 drug clear pond, with 0.05ppm 90% crystal Trichlorfon Quanchiposa, can prevent this disease. 2 Each 50 kilograms of Astragalus were fed with 9-50% crystal trichlorfon 5-7. 7 grams of feed and fed for 6 days. 3 The veterinary trichlorfon tablets (0.5 g/tablet) were soaked in water and milled and mixed with 0.1% concentration and fed for 6 days. 4 Use traditional Chinese herbal medicines such as Guanzhong, Nepeta, Scutellariae, and Tartary Buckwheat Root Bark to add 290 g (16:5:5:5 ratio) of 50 kg of Astragalus to the water equivalent to 3 times the total dose. To 1/2 of the original amount of water, pour out the concoction, and then add water to fry for the second time according to the above method. Combine the second concoction into the feed and feed it for 6 days.
If there are both aphid disease in Dianchi, this method can also be treated.
4.10 The disease is commonly known as the grasshopper.
(1) Symptoms are usually parasitized on the skin on the side of the body near the head of a sturgeon, so as to absorb the blood of the sturgeon body as a nutrient.
(2) 3% saline wash fish for 5-10 minutes.
(3) Use 0.5ppm crystal trichlorfon Quanchiposa, replace some of the new water the next day, and then sprinkle the original dose once, completely replace the new water on the third day, the effect is better.
(4) The pH of the quicklime used in the influent water can prevent rickets from occurring.
Name: spicy fish sauce
Specifications: 180g
Shelf life: 12 months
Ingredients: vegetable oil, bean paste, pepper, salt, ginger, garlic, blue pepper, white sugar, Chicken Seasoning, spices, soybean meal, pepper, pepper, starch and so on.
Storage: Store at room temperature, protected from light, and refrigerate after opening the bag.
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