Duobao fish is the English translation name and trade name of Scophthalmus maximus, which belongs to Scophthalmos, Scophthalmus, Scophthalmus, and its main producing area is located on the east coast of the Atlantic Ocean, and it is one of the rare low-temperature economic fish species in the northeast Atlantic Ocean.
1992 was first introduced to China by Huanghai Fisheries Research Institute of Chinese Academy of Fishery Sciences, and now it has become the main aquaculture species in China, especially in northern China.
Scophthalmus maximus is a cold-temperate, benthic omnivorous fish, which can withstand the water temperature of 1℃ ~ 28℃. The male fish generally matures1year, while the female fish matures in 2 years. It has the characteristics of fast growth, high meat yield, strong disease resistance and high nutritional value.
Scophthalmus maximus is a benthic fish, which lives on the bottom without eyes. When looking for bait, it jumps to prey, usually floats less, and its character is gentle. Under the condition of culture, it is rare to find mutual cannibalism.
Macrobrachium giganteum is a cold-water fish, and its highest lethal temperature is 28℃~30℃, the lowest is 1℃~2℃, the most suitable growth temperature is 14℃~ 17℃, and generally it stops growing when the water temperature exceeds 2 1℃~22℃.
Daily management methods of Duobao fish
1, Duobao fish is a cold-temperate benthic fish, and excellent culture environment and water quality are the basis to ensure the success of culture. In daily farming, light, sound interference and human disturbance should be minimized; In the process of breeding, water should be changed and polluted in time to maintain excellent water quality and sediment environment.
2. Regularly measure water quality indexes such as water temperature, dissolved oxygen, ammonia nitrogen, etc., and divide the pools in time to maintain a reasonable density. The special area for breeding workers and the special pool for breeding tools are dedicated and disinfected frequently, and the breeding workshop should be disinfected regularly, and the disinfectant should be changed frequently.
In the process of breeding, we should pay attention to reducing the number of times of applying drugs to healthy fish as much as possible, and choose drugs with low toxicity, high efficiency and little irritation to fish for daily disinfection in tools and workshops.
3. Observe the feeding, swimming, growth and development of cultured fish regularly, find sick and dead fish in time, take out the sick and dead fish for anatomical analysis and microscopic observation, analyze the reasons and record them. Ill fish and dead fish are buried after burning or splashing quicklime in places far away from the breeding factory, and cannot be discarded at will. ?