Green cage cage culture is the use of rivers, lakes, reservoirs and other large water surface fresh water, dissolved oxygen advantages of a high yield, easy management, less incidence of breeding methods. ?
1, the choice of water area? The specific requirements are: choose good water quality and pollution-free, sunny, water ph value of 7 ~ 8.5, slow water flow, small waves, quiet environment, water depth of 2 ~ 4m is appropriate, flat bottom, less sludge The water surface. ?
2, cages and settings?
2.1 Net cages are made of polythene mesh cloth, made of bamboo as floats, and fixed with floating ropes. Each cage has an area of ​​30 to 40 square meters, preferably rectangular, and the length of the cage is usually 8 meters. , width 5m, height 1.5m, mesh cloth mesh 30mm / square centimeter is appropriate. ?
2.2 Net cage setup The cage is placed in the water and it is required to move freely with the water level. Concretely, 4 bamboo trees are tied together to grow 8 meters long, 5 meters wide and bamboo frames, and a round hole with a diameter of 5 centimeters is punched in the four corners of the bamboo frame. A 1.5m bamboo tip is inserted into the hole and a hole is inserted under the hole and the bamboo tip is 1m. A simple pulley is mounted on the lower end, and the four solution tethers at the bottom of the cage are respectively fixed on the bamboo frame by pulleys; the upper four corners of the cage are tightly tied to the upper end of the bamboo string and the net walls are tied every 2m around the net wall. A bamboo pole with a length of 1.5m is fastened on the upper end of the bamboo pole and the upper end of the cage, and the lower end of the bamboo pole is tied tightly with the bottom rope of the box bottom. Each of the bamboo poles in the four corners of the cage is fastened into a bamboo pile, and the lower end enters the mud, and the upper end exposes the water surface. Then, the top of the bamboo net on the cage is tied with a bamboo pile with a rope cover, so that the cage sinks into the water 1m cage to expose the surface of the water 0.5m to prevent the shrimp from escaping. Set up a large area of ​​box, box 3m, row spacing 4m better. ?
3, stocking shrimp?
Cage-raised shrimps can be stocked in two batches in a year. The first batch is stocked in summer. Usually, the wintering shrimps are stocked in March-April, and the specifications are 1,500/kg 2.5kg per box; the second batch starts in mid-July. After catching, the animals are bred in autumn. Generally, the larvae that are bred in June are sized to 400 kg/kg and put in 2 kg per box. The larvae should be carried out on a cloudy or sunny day in the morning and in the evening. The shrimp should be weighed before entering the box and counted. When the seedlings are planted, they must be treated with water, and they must not be exposed to sunlight. Otherwise, the survival rate will be affected. After being transported, the shrimp seedlings should be raised once a day, and the dead shrimps and the damaged shrimps should be removed from the tanks; Available cage culture. ?
4, feeding and management?
4.1. Feeding Green prawn is an omnivorous animal. Rice meal, wheat bran, soybean meal, peanut meal, snail, fish, fish meal, silkworm meal, etc. can be used as bait; use of bait can accelerate the growth of shrimp and increase yield. The cages were fed twice a day, once a day at 8 a.m., and they were fed at 1/3 of the amount of the feed for one day. The second time they were fed after 5 p.m. After observing the status of eating shrimp, if the food is eaten quickly, increase the amount of feed. ?
4.2 After managing the cages to raise penaeid shrimps, we must stock 3 to 5 square meters of water hyacinth or duckweed and other aquatic plants in each box. The integrated strips are arranged in the longitudinal direction of the cages and cannot be attached to the wall; their functions are: Green shrimp provide habitat; Second, the roots of plants grow as green feed for the shrimp; Third, the water plants can serve as a natural feed station for feeding; Fourth, there is a function of avoiding light and cooling, and it is necessary to regularly check and diligently perform maintenance. Box; to prevent cages, boxes, burglary and other hazards; to regularly remove fish cages in the cage hazard of trash, generally 15 days clear; specific methods are: pull up the cage, put the fish in a corner, remove the miscellaneous fish . In addition, we need to prevent waterfowl and water rats from predators.
Mattress
We are Hospital Electric From China Manufacturer Medical Bed, also known as Hospital Bed Home Care, Hospital Equipment, Nursing Bed, etc., is a hospital bed used by patients when they are hospitalized in the hospital.
There are many classifications of medical beds, and the specific classification methods are as follows: According to the material, it can be divided into ABS medical beds, all stainless steel medical beds, semi-stainless steel medical beds, all steel sprayed medical beds, etc.
According to the function, it can be divided into electric medical beds and manual medical beds. Among them, electric medical beds can be divided into five-function electric medical beds and three-function electric medical beds. Manual medical beds can be divided into double-shake medical beds and single-shake medical beds. Medical beds, flat medical beds.
According to whether it can be moved, it can be divided into a wheeled medical bed and a right-angle medical bed. Among them, electric medical beds are generally movable with wheels.
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