2. The individual fish feed and feeding bait fish should increase in size with the growth of alfalfa. Generally, bait fish is selected according to the bait's fish size of 50% to 60% of the alfalfa's body length. Each day, the bait is weighed and the fish is weighed. 5% to 10%. In the early stage of cultivation, the size of carp species is small, and the amount of fish in cages is small. Feeding amount can be fed once every 2 to 3 days depending on the amount of feed. In the middle and later stages of breeding, when the fish grows up, water in the cage is contained. The fish's tolerance is limited. Instead, feed the bait fish once a day. Feed as much as possible 1 to 2 hours before the most active evening meal. For each kilogram of squid produced, about 5.5 kilograms of bait fish should be consumed.
3. Day-to-day management The daily management mainly consists of washing and overhauling cages, anti-floating heads, disease prevention and escape prevention.
(1) Because cages are soaked in water for a long period of time, they often have sponges, blue mud, etc., and they accumulate in the mesh for a long period of time. In severe cases, they interfere with the exchange of water inside and outside the tank. Therefore, cages must be washed regularly. Usually wash once every 40 days. When washing, use a spare cage to pack the fish to replace the cages that need to be washed. After cleaning, wash the next cage. And regularly repair the cage to avoid fish escape.
(2) If the small rivers that set up cages lack the flowing water source, the dissolved oxygen conditions are slightly worse. In order to avoid lack of oxygen, an aerator need to be set aside. According to the changes in the weather and fish dynamics, the aerators should be started in time to promote The growth and guarantee the safety of the embarrassment.
(3) timely prevention and treatment of fish diseases.
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