Green shrimp - artificial breeding
Feeding management measures A cultivate good fertilizer. Shrimp seedlings before the pond 5 to 7 days before the pile of base fertilizer, organic fertilizer (chicken manure, pig manure, fermented fertilizer of large grass) per 667 square meters with old and new ponds and fertilizer thin 150 ~ 250 kg base fertilizer, stacking fertilizer from the pool The beach is 6~8 meters, 2~3 blocks are piled per 667 square meters, and the water injection is 70~80 centimeters. In the early period, if the pond water is not fat, the top dressing can be used, and a small amount is poured. The pouring of the chicken manure water soaked and fermented is better, so that the pool water is gradually converted to an appropriate fertilizer, and nitrogen or phosphorus is added 1 to 2 times in 9~10 months. Potassium (compound fertilizer) is 5 to 7.5 kg per 667 square meters. B water quality regulation. Keep the pH between 7 and 8, from early September to early November, regularly splash lime for 15 to 20 days at a dosage of 5 kg per mu to improve the water quality of the shrimp culture and ensure that the dissolved oxygen is sufficient. C. "Smelly Green Sha" treatment. The first is to "stink Lusha" blowing down the feng shui surface when concentrated (fishing) off; the second is to "stink Lusha" when concentrated in the feng shui surface, choose sunny at about 10 am, spilled copper sulfate per 667 square meters 0.4 ~ 0.5 kg; spillage range is not more than one-fifth of the total area; use copper sulfate to pay attention to the weather, so as not to cause deterioration of water quality floating dead shrimp. D properly maintain aquatic plants. For aquatic plants with better hiding habits, there are black-leafed black algae, Malay okra, and golden algae, such as waterless plants, which can be planted with some water peanut plants or bitter grasses. They are planted at a distance of 3 to 4 meters from the pool beach and 667 square meters of plants are planted. The area is controlled at about 1/10, and more must be cleared in time to avoid competition with shrimp. E Reasonably feed the feed. Feeds fed with fresh shrimp include snail meat, minced fish, silkworm cocoons, cockroaches, fly maggots, bean cakes, rice bran, and distiller's grains. Generally, the main cast formula feed is used as well as animal feed. The shrimp can be fed from the pond for 20 to 30 days. Normally, the feed can be cast. The fish can be eaten with 30% fishmeal or cocoon, and it can also be fed with crushing pellets, 667 square meters. 0.5 to 1 kg per day, after which you can invest in full-price shrimp granules, the daily 667 m2 feeding amount can be 1.2 to 1.5 kg in the end of August, 2 to 2.5 kg in September, 2.5 to 1.5 kg in October, and 1.5 in November. ~0.5 kg. Formulated with feed for the production of special feed for shrimp, from August to September, it will contain about 35% of protein in No.1 material, and from mid-October to mid-November, it will contain about 32% of protein in No. 2 material. The oil will be bright and slightly yellow, with defects. Odor, immersed in water for 1 to 2 hours. Feed it twice a day, 60% in the morning, 70% in the morning, 70% in the afternoon at 5-6, cast around the shrimp pond, 2 to 3 meters away from the pool in the morning and 1 to 2 meters away from the pool at night. Evenly dispersed. It is necessary to use 15 to 20 kg of feedstuff pre-crushed material or 20 to 25 kg of compounding material, 90 to 110 kg of pellets in the middle and late period, 500 to 700 kg of snails or 100 to 150 kg of small trash fish, and the general feed ratio is 2.2 to 2.5. From September, shrimp ponds can be caught and kept small, and shrimps up to 4.5 cm in size can be caught on the market. Can use the trapping of shrimp cages, catch the shrimp ponds in the habitat area to drive and other methods, the end of the year can be caught in dry ponds. Blood Pressure Meter,Relion Blood Pressure Monitor,Boots Blood Pressure Monitor,Digital Blood Pressure Monitor Shenzhen urion Technology Co., Ltd. , https://www.urionhealth.com