We will continue to try new flavors to enrich our products, and we will insist on the taste of nature. As we all know, some people like apple flavor, some people like orange flavor, some people like cola flavor, so we have developed a popular taste - Citrus Flavor E-Cigarette, because its fragrance is simply It's fascinating, we value this kind of taste, and similarly, it has a lot of pleasant qualities, and it won't hurt people. Substitute For Smoking,Citrus Flavor E-Cigarette,Citrus Cigarette Alternative,Citrus Cigarette Heatsticks Dongguan Vanilla Bioengineering Co., Ltd. , https://www.healthythanbefore.com
2. Clearing: 1 Hold the eggs in front of the pond and drain the pool water so that the bottom of the pool is exposed to sunlight for more than 10 days. The bottom of the pool is hard and not cracked, to accelerate the decomposition of soil organic matter, improve soil fertility, and kill harmful biological. 2 Excavate excess silt. The silt thickness in the bottom of the tank is generally controlled to be about 20 cm, the bottom of the tank is leveled, and the tank bores and drain outlets are repaired at the same time. The pool loopholes and cracks are plugged and repaired, and weeds are removed from the poolside and pool. 3 Install a 40-mesh filter mesh at the inlet and outlet ports to prevent the escape of shrimp seedlings and the entry of predator organisms.
3. Disinfection: 7 to 10 days before the release of egg shrimp, 70 to 100 kg of lime per acre is used to sprinkle the whole pool and dry disinfected.
Second, stocking 1. Time: According to the seedlings time to determine the breeding time, generally held in late May to early June to hold the egg shrimp.
2. Collection: Collect wild bovine shrimp from natural waters such as lakes, and select females that are healthy on the day and are not injured, have a size of 5 cm or more, and have a fertilized egg color that is light green or gray-brown. The color of the fertilized egg of the shrimp is deep, indicating that the egg production time is not long, the fertilized egg is firmly connected and is not easy to separate; when the fertilized egg color is very light, except for the yolk part is light yellow, the pair of compound eyes is black and the rest is almost transparent and colorless , indicating that the egg is about to hatch, the egg is separated, and it is easy to lose eggs. Light green or gray-brown fertilized eggs generally have a certain degree of connection between eggs after more than 10 days of egg production. Choosing such egg holding shrimps with short incubation time can reduce feeding time and save production costs. Meanwhile, during operation, It will not cause a large number of eggs to be lost, and it will increase the yield of shrimp. The egg-bearing shrimps will be transported in the morning with live water boats or aeration equipment.
3. Stocking: After clearing the water in the Pond Pond, add water to a depth of 0.7 to 0.8 meters, and put 4 to 5 kg of egg shrimp on the acre. After raising eggs, when the water temperature reaches 14°C or above, feeds such as pellet feed, bean cake, wheat bran and mixed fish, snails, etc. should be fed; micro-fluid water is rushed every morning, and the diet of broodstock is inspected every day. Shrimp activity and development of fertilized eggs. Generally, about 10 days after the shrimp is introduced into the pond (the length of time is related to the maturity, weather, and water temperature), the larvae are hatched. After hatching all the fertilized eggs of the broodstock, cages and other tools can be used to catch and list the broodstock.
Third, nursery 1. Fertilization: In order to enable the young larvae of the shrimp to eat enough palatable foods, they should choose to hold the eggs for a week or so after fertilization, and fertilized eggs become grayish brown and fertilize when they appear. Fermented organic manure such as pig manure 250 to 300 kg/mu. Throughout the nursery stage, fertilizers should also be top-dressed in a timely manner. If it is found that there is blue mud or thin pool water in the pool water, each acre can be topped with 4 kg of ammonium bicarbonate and superphosphate. Generally, every application of fertilizer should add about 15 centimeters of clear water to maintain a certain amount of water, so as to ensure that the young larvae of the green prawn have sufficient food supply.
2. Feeding: Green larvae mainly feed on zooplankton. In addition to fertilization, young larvae of green prawns were started to feed yellow soy milk 3 days after hatching. Each day they were shot on the afternoon and afternoon, and the whole pool was splashed. 0.5 kg of soybeans per acre was used every day, and then gradually increased to 1 kg; Around the week, when the shrimps became metamorphosed, turned to benthic life, and became omnivorous, they gradually added feeds such as wheat flour, small-sized fish gizzards, fish meal, and silkworm cocoons, and feeds for crushing or granular feeds, plant-based feeds and animals. The feed was formulated and fed at a ratio of 3:1. Gradually, the beach feet are mainly cast around the pond, and some rice bran can be cast in the middle of the pond. In general, 10,000 shrimp seedlings of 1.5 to 2 cm are required to feed 2 kg.
3. Disease prevention: Water quality management of shrimp during the breeding period is mainly to ensure that there are abundant food organisms and sufficient dissolved oxygen. Requirements of water transparency 30 to 40 cm, dissolved oxygen 4 mg / l or more, usually every 3 to 5 days, add water once, each time the amount of water is 5 to 10 cm; and every 10 days, per acre per meter water depth lime Five to eight kilograms of water is splashed in Quanchipi to regulate water quality and prevent diseases.
Fourth, fishing generally takes about 45 days to cultivate, shrimp specifications can reach 1.5 to 2 cm, at this time can be transferred from shrimp to shrimp farming or sales. When catching shrimp, we must first clear the weeds and floating objects around the pond, lower the water level, and avoid the shelling period. We will use nets to capture and put them into the pre-prepared cages for sale. The entire process must adhere to the operation with water to prevent damage to the shrimp.
Qinghua
How to breed young shrimp in ponds
First, preparation 1. Conditions: area of ​​1 ~ 15 acres is appropriate, 3 ~ 8 acres of the best, water depth of about 1.5 meters; the bottom flat, the soil to loam is better; Beach foot 3 to 4 meters, the pool is not leaking, Can keep water and fertilizer; Irrigation drainage system is separated, there is a good and adequate water supply.