Earthworm breeding high yield technology

In recent years, earthworm breeding has become a popular breeding mode for farmers. It is cheaper than cement ponds, it has low power consumption, fast recovery, stable water depth and water quality, simple management, and is not easy to produce. "Miao", breeding technology is easy to spread and so on. However, there are also disadvantageous aspects in raising earthworms in the earthen ponds. For example, the pool water is not easy to drain, prevent disease, and treat diseases. Once the disease is difficult to eradicate, the area of ​​the pond is too large for over-winter insulation to be difficult, etc. For these situations, the author has based on the experience of local soil pond aquaculture in recent years. A summary of the relevant technologies in the soil ponds will be provided for reference by relevant personnel. 1. Prepare a thorough clearing pond before the seedlings are planted, and the cultivation of good water quality will provide a good environment for the growth of carp. 1. Qingchi. Before the seedlings are drained, the pool water is drained for 20 days, and the silt is dug deeply to remove the dirt. The dredging can be carried out manually or using a suction pump. Heighten and reinforce ponds so that they do not seep water and leak. The perennial water depth can maintain 2m, and the bottom slope of the earthen pond can easily drain water, laying the foundation for promoting the growth of carp and raising the survival rate. 2. disinfection. The average depth of water is about 15cm. After the 1100kg of quicklime is dissolved in each acre, the whole pool is evenly sprayed, or 20mg/L of bleaching powder is used. The whole pool is splashed and disinfected, and the water can be injected after 7 days to 10 days. 3. Water quality training. Before the seedlings are planted, the pond water shall be cultivated and tested so that the various physical and chemical factors in the pond water are suitable for the growth requirements of the catfish. The water depth is maintained at 1.5-1.8m, the pH is about 7.2, the water transparency is maintained at about 30cm, and the dissolved oxygen is maintained at 4-6mg/L. Second, the kind of delivery 1. It is cultivated under temperature control in advance. It has a strong physique, no sickness, no injury, active swimming, strong ability to catch food, rich skin, and a seed of similar specifications. 2. Potassium permanganate was disinfected for 15 minutes before release. Third, feed bait fish feeding, we must adhere to the "four set" principle. 1. Qualitative. To use high-quality compound feeds, compound feeds must be adjusted at the time of feeding. Add water, add additives, fully stir and modulate into dough. The prepared feed must be moderately soft and hard, with good elasticity, stickiness and stretchability. 2. Positioning. Tables are generally fixed in one place, and their size and quantity should be based on the area and number of carp. 3. timing. Carp reared twice a day, 7-8 am in the morning and 5-6 pm in the afternoon. 4. Quantitative. According to the temperature of the water, the size of the carp, the type of bait, the quality of the water, and the feeding conditions, it usually takes 20 minutes to eat, and the young pupal period is about 3% of the total amount of the pond, and the darkest period is 4%. Period is about 2%, high temperature, wintering period is O. 5%-1%. In the morning and evening meals, the ratio is 6:4. After the squid eats food, it is necessary to timely perform the remaining bait treatment and clean the food table. When feeding, the cod liver oil can be added to the feed and the cyanobacterial additive can be added. To enhance the palatability of feeds and increase the appetite of eels. Improve the feed efficiency, enhance the disease resistance of carp, promote the transformation of “three types of seedlings”, and increase the yield of the year. Addition ratios accounted for 6% of the total feed, respectively, l. About 5%. In addition, 10 ppm of photosynthetic bacteria can be sprinkled into the water every day from the date of shipment, and 1% ppm photosynthetic bacteria should be sprinkled every other month. Fourth, water quality management Earthworm ponds, carp feeding is mainly fed compound feed, large food intake. The high stocking density and quality of water directly affect the healthy growth and export quality of carp. Daily pH, water temperature, dissolved oxygen and transparency are required. Ammonia nitrogen record. 1. transparency. The transparency of the water body is required to reach 3O-50cm. There is less organic debris and suspended matter in the water body. The water body is thin and moderate and cannot be fat. It can be adjusted by changing water, splashing lime, or cultivating plankton. 2. pH value. The general requirement for water is neutral alkali. The best between pH 7-8. It can be adjusted by changing water, splashing lime, etc. 3. Dissolved oxygen. General requirements in the 4mg/L-6mg/L above and day and night changes can not be too large. In order to maintain the high water quality of dissolved oxygen, it is necessary to achieve "three adaptations" (in order to add new water in a timely manner, and turn on oxygen at a proper time, and appropriate application of fertilizers). 4. Ammonia nitrogen. The ammonia-nitrogen content in the fish pond should be controlled below 0.02 mg/L. High contents will affect the respiratory remnants of the fish, which will cause serious damage to the liver and affect the feed acid. Ammonia nitrogen can be reduced by spraying photosynthetic bacteria. Under normal circumstances, once a month, lime is disinfected to adjust the water quality. Once a month, formalin, potassium permanganate, and other drugs are used to disinfect once. Every day, after the feed is fed, sewage and water are injected at 2-3 hours. The daily water exchange volume is 15%-50% of the total water body. V. Prevention and treatment of rickets (I) Prevention of rickets In order to prevent and reduce the incidence of squid, measures should be taken to strengthen feeding and management, improve water quality, enhance squid constitution, and carry out drug prevention. 1. Dianchi ponds should be regularly cleaned and disinfected. Disinfection is mainly done with lime or bleach. 2. Cast seedlings should choose robust breeds. Before the seedlings are cast, they are usually soaked in 1% saline for 5-10 minutes. Crystalline trichlorfon can also be used to dip for 5-10 minutes at 0.1% concentration. 3. Feeding and feeding should adopt the “quadruple” feeding method of timing, positioning, qualitative and quantitative. Frequent cleaning of the food premises, elimination of residual bait dirt, in the summer and autumn with bleaching powder 25Og, dissolved in 1Okg water, spilled around the food 1-2 times. 4. Sewage should be timely, regular water, change the water. 5. Apply regularly. For example, May-September is the period of infection and infection of the head of the anchor, 0.1-0.2ppm of crystallized trichlorfon can be sprayed 2-3 times per month to prevent the occurrence of parasitic diseases. Regularly feed "squid multi-dimensional" per ton of feed to add 3-5kg and add 10kg of fish blood, or add "inflammation stop" for 2-3 days every half a month, and add 2g per kilogram of feed to prevent enteritis. (b) Prevention and control of rickets To use quasi-drugs, not to abuse antibiotics, disinfectants, should be based on the different growth stages and ecological environment of eel. 2. To correctly estimate the amount of medication. The use of drugs is less than the prevention and control purposes, the amount of drugs can easily lead to death of salmon poisoning. 3. Pay attention to medication time and never use the same medicine for a long time without illness or disease. 4. The use of drugs as far as possible to choose "three-effect" (high efficiency, quick, long-term) and "three small" (small toxicity, side effects, small dosage) of fish medicine. 5. When several diseases occur in the same pool, one kind of disease drug should be used first. If parasite diseases and bacterial diseases occur at the same time, first kill the insects and sterilize them. 6. To combine the regulation of fish function and improve the environment to comprehensive treatment. Sixth, daily management The daily management of earthworm ponds includes a wide range of fields, and it is closely related to various technical measures. The main points should pay attention to the following points. 1. The daily duty shift should regularly visit the pool, pay attention to observe the behavior of carp, in particular, to understand the feeding situation of carp, determine the amount of daily feeding, according to the timely adjustment of food intake, after eating to clean up the food table to keep the food table clean and hygienic. 2. Timely removal of dead cockroaches, weeds, sundries, etc., found that the disease immediately check the cause of the disease and timely treatment, such as the pool of cockroaches have abnormal activities to detect the reasons for the timely adoption of appropriate measures. 3. Attention should be paid to the observation of water quality, especially in the rainy days, and the patrol ponds should be strengthened at nighttime. Observe the operation of the aerators to prevent the leakage of water from the pools, prevent theft, prevent patrols, and prevent flooding. 4. Do a daily record of work, record the day water quality climate: feeding. Disinfection, prevention and treatment of diseases and other conditions.