Pelteobagrus vachelli and litopenaeus vannamei mixed breed method
A technique for peltaceae and white prawns, which is applied in the field of peltridge and prawn farming, can solve the problems of poor resistance of shrimp seedlings, difficulty in control, loss of breeding personnel, etc., to achieve guaranteed survival rate and great economic benefits , the effect of reducing disease outbreaks
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Embodiment 1
[0021] A method for polyculture of P. vannamei and Penaeus vannamei, the specific steps are:
[0022] (1) Seed selection:
[0023] Pelteobagrus vachelli fry has a body length of 3cm, and Penaeus vannamei fry has a body length of 1cm. The two species are both robust and good in quality;
[0024] (2) Preparation before seedling release:
[0025] The polyculture pond area is 0.35hm 2 , The pond is 2.5m deep, with independent inlet and outlet gates, equipped with 2 1.5kW impeller aerators, in mid-April, 15cm of water is stored in the pond, and the tea seed cake is soaked overnight at 25g / m 3 Sprinkle evenly in the pond to kill wild trash fish. After 2 days, use bleach powder for disinfection in the whole pond, then wash and expose for many times. After 5 days, filter the water 85cm with a 60 mesh screen and apply 1600kg of decomposed manure. / hm 2 , Fertilizer water to cultivate bait organisms, enter May, when the pool water transparency reaches 42cm, apply 160kg / hm of photosynthetic bact...
Embodiment 2
[0034] A method for polyculture of P. vannamei and Penaeus vannamei, the specific steps are:
[0035] (1) Seed selection:
[0036] Pelteobagrus vachelli fry has a body length of 5 cm, and Penaeus vannamei fry has a body length of 1 cm. The two species are both robust and good in quality;
[0037] (2) Preparation before seedling release:
[0038] The polyculture pond area is 0.35hm 2 , The pond is 2.5m deep, with independent inlet and outlet gates, equipped with 2 1.5kW impeller aerators, in mid-April, 15cm of water is stored in the pond, and the tea seed cake is soaked overnight at 25g / m 3 Sprinkle evenly in the pond to kill wild trash fish. After 2 days, use bleach powder to disinfect the whole pond, then rinse and expose for several times. After 7 days, filter the water with a 60-mesh silk screen to 95cm and apply 1600kg of decomposed manure. / hm 2 , Fertilizer water to cultivate bait organisms, enter May, when the pool water transparency reaches 45cm, apply 160kg / hm of photosynthet...
Embodiment 3
[0047] A method for polyculture of P. vannamei and Penaeus vannamei, the specific steps are:
[0048] (1) Seed selection:
[0049] Pelteobagrus vachelli fry has a body length of 4cm, and Penaeus vannamei fry has a body length of 1cm. The two species are both robust and good in quality;
[0050] (2) Preparation before seedling release:
[0051] The polyculture pond area is 0.35hm 2 , The pond is 2.5m deep, with independent inlet and outlet gates, equipped with 2 1.5kW impeller aerators, in mid-April, 15cm of water is stored in the pond, and the tea seed cake is soaked overnight at 25g / m 3 Sprinkle evenly in the pond to kill wild trash fish. After 2 days, use bleach powder for disinfection in the whole pond, then wash and expose for several times. After 6 days, filter the water with a 60-mesh sieve for 90cm and apply 1600kg of decomposed manure. / hm 2 , Fertilizer water to cultivate bait organisms, enter May, when the pool water transparency reaches 43cm, apply 160kg / hm of photosyntheti...
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