Disinfection treatment of temporary culture of red insects

Disinfection treatment of temporary culture of red insects

The red worm is the best open bait for eel seedling cultivation. Because the red worm itself carries more dirt and pathogenic bacteria, after the red worm is purchased in the farm, the dirt must be discharged by temporary culture and rinsing, and scientific and reasonable methods should be used for disinfection before feeding to avoid diseases.

The specific measures are briefly introduced as follows:

1. The red worms fed by rinsing should be purchased 3-5 days in advance and temporarily reared in the red worm pond. During the temporary cultivation of red insects, they should keep running water and often turn and rake and stir, so that dead insects, dirt and impurities flow away, so that the dirt in the body of red insects can be discharged.

two。 After climbing the live red worm for 12 hours to restore its vitality, use a red worm frame (a rectangular wooden frame made up of screen cloth and wooden frame, slightly smaller than the red worm pool) to cover the red worm and let the red worm get out of the mesh and climb onto the surface of the net. then scrape the fresh red insects on the net surface to other pools to continue rinsing, so that the fresh red insects are separated from dead insects and dirt. After 3 or 4 times of crawling, the dead insects and dirt in the red insects have been almost eliminated.

3. There are a variety of disinfection methods for disinfecting red worms. It is recommended to use compressors or gas pumps to inflate. In large plastic buckets or wooden buckets, the barrel volume is about 100L (can hold 170,200jin of water). With its 80% capacity, it can disinfect 40-50kg red insects each time (worm: water = 1:1). Under the stimulation of continuous inflation, the vitality of red insects will not decline. Antibiotics used to kill pathogens can be treated with oxytetracycline hydrochloride 0.5g / kg water or oxolinic acid 0.5g / kg water together with salt 5 ‰, or with ClO2 or potassium permanganate for 1 to several hours. After the medicine bath, the red worms are again put on the water head of the red worm pond to rinse, in order to wash away the dead insects and residual medicine, pick them up before feeding, add Baoganning 4#2~3g/kg red worms + Nanda-eel kangsu 2g/kg red worms, stir well and then feed them directly. (note: Baogan Ningqi main ingredients: a variety of soluble high calcium tablets and vitamins, food attractants and so on. Its function is to solve the nutritional deficiency of red insects, reduce the number of three kinds of seedlings, enhance the disease resistance of fish, and reduce the occurrence of stress. Nanda-Eel Kangsu's main function is to prevent Edward's disease, it is recommended to take medicine 2-3 days a week. )

Whenever the above-mentioned methods are used to deal with red insects, the white seedling cultivation stage can effectively prevent the occurrence of Edward's disease and pullorum, and lay a good foundation for the smooth cultivation of commercial eel, shorten the culture cycle and reduce the culture cost.