Blackfish culture conditions and requirements:
One, pond selection
When choosing a pond for blackfish culture, choose a pond area that is not very large, generally a pond area of 3-5 acres is preferred, the pond is required to have sufficient water supply, easy drainage and water injection, water depth of 1.5-2m, and the bottom of the pond is thick with 15-20cm of mud.
Two, fish seed placement
For blackfish fish seed placement specifications are generally based on the market specification of commercial fish, the current blackfish individual weight of 0.7-2kg sales market is good, the blackfish stocking specification of 75-100g per tail, blackfish stocking density needs to be based on the source of feed, feeding technology and other factors, generally speaking, each acre of land to put the fish seed
Three, feed feeding
Farmed blackfish know, blackfish is a fierce carnivorous fish, live food dead food it ate, mainly to small carp and other wild omnivorous food for food. In the artificial feeding of blackfish to take time, fixed-point domestication feeding method every day in the morning 10 days and rain 3 o'clock this time period feeding twice.
General stocking 5-7 days after the fish will all float to the surface of the water to grab food, at the same time in the feeding time, but also carefully observe the food table near the blackfish eating situation, when the food table near the blackfish less or grab food is not intense, the surface of the blackfish have eaten enough, you can stop feeding.
Four, feeding management
Because of the blackfish's food, excreta, will soon make the pond water become fat, and fertilized water will make the plankton reproduction up, resulting in pond water hypoxia, so in the breeding process to pay more attention to changes in dissolved oxygen in the water, once a hypoxia phenomenon is detected, it is necessary to open the oxygenator in a timely manner, when the hypoxia is more serious, then we have to take Part of the water surface killing method, that is, in the pond side of the 2-3m of water surface sprinkling concentration of 0.5ppm ~ 1.0PPm trichlorfon.
The blackfish itself has a strong resistance to disease, so it seldom gets sick in the process of artificial rearing, but in the late fall, if the management is not good, the feed supply is not enough, the water environment is seriously bad, etc., which will also lead to the blackfish getting sick, so we must carefully observe the growth of the blackfish in this stage, and treat it in time once it happens to be sick.