Xiaolong, also known as squid, is a large and medium-sized economic fish and is also a precious fish species. At present, there are more than 20 species in the world, among which there are 8 species in China. Russian salmon are mainly distributed in Russia's Caspian Sea, Azov Sea, Black Sea, and rivers that communicate with these river basins. In addition to some of the migratory species, there are some species of habitat. The spring began to swim and ended in the autumn. The spring migrations spawned the year and the autumn migration spawned the following year. Initial sexual maturity:
Males were 11 to 9 years old, females were 11 to 13 years old, and spawning cycles were 4 to 6 years. The main points of Russian adult salmon farming techniques are described below:
1. Pond conditions: The pond should have a good drainage system. The area of ​​the fish pond should be 3 to 5 mu, and its shape should be rectangular. The mud at the bottom of the pool is less than 10 cm. If the cement flow pool is not limited to an area of ​​50 to 300 meters. The pool is 2 meters deep.
2. Requirements for water quality: The dissolved oxygen requirement is greater than 5 mg/L and the PH value is between 6.5 and 8.0. It should be noted that carp is particularly sensitive to chlorine, even if traces of chlorine ions in the water can cause the carp to die.
3. Stocking of fish species: The pond is disinfected with quicklime before stocking, with about 10 kilograms per acre, and then dried in the dry pond. Two weeks before stocking, water depth was 2 meters. The stocking density of squid is related to its individual size. The general specifications are between 300 and 500 grams, and 500 are placed per acre. The water temperature of squid is 1～30°C, the optimum water temperature for producing commercial squid is 20～24°C, and the water temperature in autumn and winter is not less than 4～6°C. When the pond water temperature exceeds 26°C in summer, it should be timely water.
4. Feeding management: The principle of timing, fixed point, and quantitative feeding is adopted. The daily feed rate is 3%. After the fish grows, the feed rate is gradually reduced. When the fish reaches more than 1 kg, the daily feed rate is not More than 1%. Because the salmon are afraid of light, the feeding time is every day at dawn and dusk. Fish Health II, multi-dimensional freshwater fish, and enzyme preparations were added every half month to improve the anti-stress ability and immunity of carp and accelerate the growth of carp.
Males were 11 to 9 years old, females were 11 to 13 years old, and spawning cycles were 4 to 6 years. The main points of Russian adult salmon farming techniques are described below:
1. Pond conditions: The pond should have a good drainage system. The area of ​​the fish pond should be 3 to 5 mu, and its shape should be rectangular. The mud at the bottom of the pool is less than 10 cm. If the cement flow pool is not limited to an area of ​​50 to 300 meters. The pool is 2 meters deep.
2. Requirements for water quality: The dissolved oxygen requirement is greater than 5 mg/L and the PH value is between 6.5 and 8.0. It should be noted that carp is particularly sensitive to chlorine, even if traces of chlorine ions in the water can cause the carp to die.
3. Stocking of fish species: The pond is disinfected with quicklime before stocking, with about 10 kilograms per acre, and then dried in the dry pond. Two weeks before stocking, water depth was 2 meters. The stocking density of squid is related to its individual size. The general specifications are between 300 and 500 grams, and 500 are placed per acre. The water temperature of squid is 1～30°C, the optimum water temperature for producing commercial squid is 20～24°C, and the water temperature in autumn and winter is not less than 4～6°C. When the pond water temperature exceeds 26°C in summer, it should be timely water.
4. Feeding management: The principle of timing, fixed point, and quantitative feeding is adopted. The daily feed rate is 3%. After the fish grows, the feed rate is gradually reduced. When the fish reaches more than 1 kg, the daily feed rate is not More than 1%. Because the salmon are afraid of light, the feeding time is every day at dawn and dusk. Fish Health II, multi-dimensional freshwater fish, and enzyme preparations were added every half month to improve the anti-stress ability and immunity of carp and accelerate the growth of carp.