Summer and autumn temperatures are high, and the management of the eel intensive pool should focus on the following items. First, water quality management to remove the residual baits and other contaminants in the pool in a timely manner to maintain the water quality of fertilizer, live, tender and cool, change the water every 1 day to 2 days, and maintain a water depth of 25 cm to 30 cm. The pH value of water in Chengchi Lake should be strictly controlled between 7 and 7.8, and it must be determined by the common test paper. The acid is adjusted by applying quicklime. Second, the control of water temperature The optimum temperature of seabream aquaculture below 28 °C. During the summer and autumn, the temperature is very high. If the temperature of the water rises rapidly when the sun shines directly, the growth of the carp will be inhibited, and even the disease will die. Effective cooling measures must be taken. 1. Change water and add new water. When the temperature rises above 38°C, let go of 1/3 of the surface water and add fresh water. If there are conditions, use a small flow of water, the use of constant flow of water is best. 2. Above the squid pool, scaffolding is carried out. Vine crops such as grapes, lentils and loofah are planted on the perimeter of the pond. The vines are hauled onto the frame to form a awning cover. The shade area is appropriate to occupy 1/3 of the surface of the water, allowing the pool water to maintain a certain degree. illumination. 3. In the pond, aquatic plants such as water hyacinths and water lilies are planted, and a small amount of stumps are placed to allow the perch to inhabit and hide. However, note that the area covered by aquatic crops should be controlled to less than half of the water area. Third, feeding and management 1. Feed live maggots, oysters, snails, etc. or fresh livestock and poultry viscera, supplemented with wheat bran, cake glutinous, flour and other plant-based feed, the amount of fresh feed for squid total weight About 8%, the dry feed amount is halved. 2. Never feed contaminated or spoiled feed. 3. Adhere to the four principles, to grasp the amount of feeding, in case of bad weather, the amount of eel feeding should be reduced to appropriate feeding, usually on the same day as the degree of finish. If there are residual baits should be cleared in time to avoid pollution of water quality. Fourth, pay attention to anti-escape in the event of a sudden change in the climate will make the carp feel uncomfortable, anxiety, waiting for opportunity to escape. Especially during thunderstorms or nighttime rainstorms, it is most likely to escape. Check the pool wall and the bottom of the pool for cracks, check whether the drainage hole covers are in good condition, and whether the water depth exceeds the standard overflow, eliminate hidden dangers in time, and block the escape route of the squid. Fifth, disease prevention and control 1. Prevent colds before and after changing the water temperature is higher than 2 °C often cause colds, should be strictly controlled in the exchange of water and water temperature, to avoid the occurrence of a cold. 2. Prevention of fever The disease is caused by the pool water, the water temperature is too high, the sickness is agitated, and often appears on the surface of the water or lying on the grass frequently swinging head, hunger without food, and finally died. In addition to the prevention and control method of cooling the sun, adding new water, according to every cubic meter with 5 ml of 0.07% copper sulfate solution spilled evenly throughout the pool, the effect is very good. 3. Hemorrhagic disease prevention and control method is based on every kilogram of squid with 30 milligrams of ribonucleoside and 0.5 kilogram of water for bathing for 4 hours to 5 hours. The curative effect is very good. 4. The maculopathy raises a few fleas in the pond. If this disease has already occurred, it can be dragged and then tied on the string in the pool for several rounds, so that the active ingredient of the wolfberry can be dissolved in water and can be basically cured.
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