1, fish pond site selection and construction: breeding blackfish fish ponds are best selected in a sunny location, the depth of water in the 1-1.5m or so is more appropriate. The periphery of the fish pond can be planted with aquatic plants. Before stocking blackfish fry should be well sterilized to avoid infection of germs and losses.
2, stocking blackfish fry: it is very important to buy blackfish fry from the regular channels, so that you can increase the survival rate. Buy back the fry should also do a good job of disinfection, usually with salt water can be, not too long, about five minutes.
3, scientific feeding: the blackfish's diet is relatively large, suitable for its food is also relatively wide, such as mussel meat, small fish, shrimp, soybeans, fish meal, flour and so on are available. Usually focus on its scientific feeding in order to help its growth.
Expanded Information:
Growth habit
Strong adaptability to changes in environmental factors in the water column, especially to hypoxia, water temperature, and poor water quality has a strong Adaptability. When the water body lacks oxygen, it can expose its head to the water surface. The back is laterally flattened. The head is long, slightly flattened at the front and slightly bulging at the back.
Breathes oxygen directly from the air with the help of the gill epiglottis, which consists of the upper gill bones on the back of the first gill arch and the bony plates extending from the hyoid mandible in the gill cavity. Thus it can survive for quite a long time even in humid areas with little or no water.
Survival water temperature is 0-41 ℃, the optimal water temperature is 16-30 ℃. When the water temperature reaches 8 ℃ or more in the spring, often in the water column in the upper layer of activities; summer season activities in the upper layer of the water column; fall water temperature drops to 6 ℃ or less, swim slowly, often lurking in the water depths; water temperature in winter close to 0 ℃, it is hibernating in the mud at the bottom of the water to stop eating and do not move.
At 1 and normal temperature (about 26 degrees), it can generally be stored for 3 days, but it should not exceed 1 wee