Experience of culturing Pelteobagrus fulvidraco in miniature cage

Setting up miniature cage to culture Pelteobagrus fulvidraco in the pond of other aquatic products has the advantages of low investment, quick effect and simple operation. Cage setting. The cage is stitched together by polyethylene mesh, 2 meters long, 2 meters wide, 1.2 meters high, and the mesh is 1 cm. The cage adopts a closed stretcher floating type, the bottom uses 9-purpose mesh cloth as the cushion, the edge height of the cushion is 20 cm, in order to reduce the loss of feed, the upper part of the cage is about 30 cm above the water surface. A square plastic basket with a height of 10 cm and a side length of 30 cm is made of 18-mesh polyethylene window screen as a dining table, which is placed in the middle of the box. The cage is arranged at the inlet of the fish pond, and 1-3 fish ponds can be placed per mu. The cage can also be set in spacious waters with fresh water quality, sufficient dissolved oxygen, shelter from the wind and no pollution, arranged in a "one" shape, with a box spacing of 4 meters and a line spacing of about 10 meters. Transplant water hyacinth or water peanut which accounts for about 2 / 3 of the cage area.

Fish fingerling is released. The cage was launched 1-2 weeks before the fingerling was released. Fish species require no disease, no injury, strong physique and neat specifications. There are 100-150 large size fish with a tail weight of about 20 grams per square meter.

Feeding and management.

① feeding: commonly used feeds include small miscellaneous fish, snail clam, earthworms, silkworm pupae, viscera of livestock and poultry and animal blood, etc., which are fed according to the principles of timing, positioning, quality and quantity to ensure that yellow croaker can eat well and grow rapidly.

② pipe water: keep the water quality fresh and sufficient dissolved oxygen. Observe the activities of the fish every day, check whether the cage is damaged, fish out the sick and dead fish in the cage, and keep the water in the cage clean. Clean the cage once a week to ensure the normal exchange of water inside and outside the cage, and adjust the height of the cage in time when the water level changes.

Disease control. Soak the cage with bleach solution for 30 minutes before entering the water; wash the fish with salt solution before entering the box to kill surface bacteria and parasites; sprinkle and disinfect the whole box with raw lime water every 10-15 days; regularly hang bags with the mixture of copper sulfate and ferrous sulfate; bait made of antibiotics every 20 days or so for 2-3 days. Through the above measures, the occurrence of fish disease in the culture cycle can be prevented.