First, cage structure cage material is polyethylene, cable diameter is 1.13 mm, mesh size is 3-5 cm, cage size is 4mx7mx2m, single-layer cage, frame is bamboo pole, bamboo raft diameter It is about 10 centimeters in length, and several of them are connected together and fixed with a sinker.
Second, the cage set cage placement is extremely important, directly affecting the growth rate of calyx, general requirements placed in a vast water area, there is micro-flowing water, good water quality, pollution-free, sunny, sheltered from the sun, the water temperature is higher, the food organisms are sufficient, Close to the shore, the depth of 4-7 meters, the wind is small, convenient transportation of the reservoir area is appropriate.
Third, fish species
1. The time of stocking of fish species: 11-December each year, or February-March of the following year, the water temperature is lower, transportation is convenient, fish body injury is lighter, and the survival rate is high.
2. Fish stocking specifications: There are two kinds, about 80 grams or about 350 grams.
3. Stocking numbers: 80 g fish species will be placed in 450-550 crate per box, 350 g fish species will be 200-250 crate per box.
IV. Precautions: The water temperature of the fingerlings is less than 12 degrees Celsius, and the fish species are robust and tidy. Strictly sterilize before and after entering the box to prevent the occurrence and death of hydromycosis. Before the fish species are put into the box, due to transportation and shipment, resulting in injury to the fish body, it is highly prone to occur in the case of low water temperature, and the success or failure of breeding and management of the cages for rearing of flower pots is very important. Feeding and management are very important, and management can be accelerated. Calyx growth, increase production, get better economic benefits. Otherwise, due to poor management, resulting in slower growth or even escape, breeding fails. Feeding management mainly includes the following aspects:
1. Blister box: new cages, rough surface, directly loaded fish can easily cause fish injuries, therefore, must be soaked in the library 7-10 days in advance.
2. Brush box: The cage is placed in the storage tank. Due to the action of plankton in the water, a lot of dirt is adhered to the cage, which affects the exchange of water and causes the reduction of the amount of plankton in the box. As a result, the calyx grows slowly due to the shortage of food. Therefore, the cages must be brushed regularly, generally in the growing season, brushing once in 15-20 days.
3. Mobile: There are two kinds of movements. First, in the flood season, mobile cages are prevented from being washed by floods. Second, mobile cages increase the biological content of food in cages and accelerate the growth of calyx.
4. Feeding: Sometimes, reservoirs are relatively thin or have more cages. Other methods cannot increase the amount of food organisms in the tank. At this time, it is necessary to stack or suspend organic fertilizers or fertilizers around the cages. Fertilizers should be suspended in the absence of wind.
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