First, the middle of fry cultivation techniques l. Pond conditions: The pond should be selected from an area of ​​2 to 5 mu and a water depth of 1.0 to 1.5 meters. An east-west rectangle is appropriate, and the bottom of the pond is flat and less silted to facilitate the operation of the net. 2. Breeding: Sprinkle water can be 50,000 to 60,000 per acre. Fish species mainly use fertilization to cultivate plankton, especially rotifers and other natural baits, supplemented by soymilk and rice bran. In the later stages of cultivation, commercial feeds must be fed so that the fry can obtain adequate nutrition. 3. Domestication: In order to facilitate future management, the domestication of fish fry should be done during the cultivation period. First of all, we must do four things: Time, fixed-point, quantitative, and qualitative. Tilapia must be cultured with seawater when feeding daily. A wooden stick knocks on the barrel or on the shore, then sprinkles the material to cultivate the fish Miao clusters ingest habits of conditioned reflexes. Second, adult fish breeding technology l. Pond conditions: The pond should have sufficient water source, convenient for drainage and drainage, with an area of ​​5 to 10 acres, and a water depth of 1.5 to 2.0 meters. 2. Fish stocking: The general water temperature can be maintained at a constant temperature above 18°C, and the wintering species of 6 to 10 cm per mu is 1,500 to 2,000 tails/mu, and the summer fish species of 3 to 5 cm are 2000 to 2500/mu. . 3. Feeding management: 1 feed feeding: mainly high-quality compound feed, feeding 2 to 3 times daily. 2 water quality regulation: With the fish's growth gradually deepens the water level to 1.5 to 2.0 meters, and every 7 to 10 days to the pond to add new water once, each time 15 to 20 centimeters; at the same time regularly spilled lime, transparency is about 30 centimeters, Prevent water aging. Keeping the pond's water body salinity within 2% will not only facilitate the growth of the fish but also effectively control the disease. 4. Disease prevention and control: 1 It is mainly prevention. The fish ponds are sprinkled with bleach once. During the breeding period, the whole pool is splashed with lime every 15 to 20 days. 2 During the cultivation of seawater tilapia, it is most likely that the surface of fish appears ulceration due to the increase of salinity in the sea. In this case, gradually adjust the salinity to the bottom. Can heal naturally.
Pole Line Hardwares
Poleline Hardware or Power line accessories / fitting widely used in connecting, handling and
holding various overhead line systems, insulators, wires, and other utilities. It is an
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