Perch is one of the common economic fish and a kind of marine culture, which is deeply loved by people. Let's take a look at the high-yield culture technology of freshwater bass!

grow seedlings

The perch fry (body length 1.5 ~ 2cm) caught from this sea area can only be put into a temporary culture pond (salinity 1‰) after being diluted to 4 ~ 7 ‰, and fresh baits such as zooplankton and red worms are fed the next day after being lowered into the pond, and fish mud and floating objects are slowly mixed with the fresh baits for feeding and gradually domesticated until surimi and floating objects are fed.

Spray 0.3ppm strong chlorine essence or 15ppm formalin once a week for disinfection during the temporary feeding period, and take 0.5 g furazolidone, 3 g oxytetracycline and vitamin c 1 g orally every 50 kg of fish three days before feeding, and feed them together once a day. After more than 20 days of feeding, they can enter the big pond to feed.

Seedling stocking

Lateolabrax japonicus is temporarily raised, with 2000 ~ 3000 fish per cubic meter of water, disinfected with chloramphenicol, fed with Artemia larvae 10 days before, and then fed with fresh surimi. When the fish are cultured to about 10 cm, put them into the culture pond according to the ratio of 1.5 fish per square meter.

Feeding and management

After screening, the perch fry are raised in different ponds according to their size. Generally, the stocking density is 2500 ~ 3500 fish/mu, and the water depth is above 1.5 meters. It is advisable to maintain the proper fertility of the pool water, with a transparency of 30 cm and an oil-green color.

Feed it twice a day, mainly with minced fish and floating pellet feed. Vitamin B and C should be added to the feed, and the daily feeding amount is 6% of the fish weight.

Soil mycotoxins, erythromycin and vitamins are mixed with bait twice a month for 3 days, and the whole pond is disinfected regularly with 0.4ppm strong chlorine or 20ppm formalin.

Do a good job of patrolling the pond every day, and turn it on at night or when the weather is sultry and the air pressure is low. If the water quality is not good, change it in time to keep the water fresh.