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What are the requirements for breeding barracuda?
1. The area of barracuda culture pond should be as large as possible, generally between 10-20 mu. The shape of the pond is rectangular, the depth of the pond is1.5-2.0m, and the bottom material is mud and sand structure. Fish ponds should be selected in places with sufficient water resources and convenient transportation and electricity. It requires a long illumination time and a perfect water inlet and drainage system in the pond.

2. 20 days before stocking fish, the pond must be thoroughly cleaned and disinfected. Methods Please refer to the disinfection method of nursery pond. After disinfection, after about two weeks, the pond was filled with water, and the water was filtered with 80 mesh nylon gauze or polyethylene net. Then hang bags at the four corners of the pond to pile up fermented organic fertilizer, and the oozing fertilizer water can play a role in cultivating water quality after entering the pond.

The amount of fertilizer used for each mu (667 square meters) pond is 100-200 kg.

Extended data:

Barracuda culture technology;

1, inventory and management

Disinfection of aquaculture ponds. Before stocking fry, the disinfection of the culture pond should be done well in advance. 20~25 mg/L bleaching powder or 100~200 mg/L potassium permanganate can be used for soaking and washing for 24 h. If it is a new cement pool, 50 mg/L calcium superphosphate should be used for alkali removal 30 days in advance.

Seedling stocking. Generally, the seedling release time is from March to June every year 10, and the stocking specification is 10~ 16 cm. The stocking time of 20 1 1 year is 10 June, the fish species specification is about 14cm, the stocking density is 70 fish /m2, and each culture pond is stocked with 1 120 fish, with * * seedlings/kl. The stocked fish species are required to have neat specifications, no damage, strong fluidity and normal feeding.

Soak the fish in 3% salt water for 5 minutes before stocking to disinfect the body surface.

2, feed and feeding

Feeding of fish began on the third day after stocking, and feeding was carried out according to the principle of "fixed time, fixed point, quantitative and qualitative". Feeding 6 times a day in the early stage of breeding, and gradually reduced to 2 times a day.

According to the growth specifications of sturgeon, sturgeon complete pellet feed with protein content of 40%~42% is used, the feed granularity is flexibly controlled according to the fish weight, and the feeding amount is adjusted according to the fish weight and water temperature, and the feeding amount should be eaten within 20 minutes after feeding.

3, disease prevention and treatment

In the case of industrialized high-density farming, it is occasionally affected by its own or external factors. Therefore, the principle of "prevention first, combining prevention with control" should be seriously implemented in the breeding process. Generally, the breeding ponds are disinfected alternately with chlorine dioxide or povidone iodine every10 ~ 20 days, and VC and VE are added to the feed regularly to improve the immunity of fish and prevent the occurrence of diseases.

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