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

Inactive Publication Date: 2017-05-10
TIANJIN YUNHUA AGRI TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of intensive cultivation of Penaeus vannamei, the shrimp larvae have poor resistance, and the onset is getting earlier and earlier. Once a small amount of shrimp larvae becomes ill, it will spread rapidly, resulting in the collective death of a large number of shrimp, which is difficult to control and brings great harm to the farmers. immeasurable loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to a pelteobagrus vachelli and litopenaeus vannamei mixed breed method. The method includes the following specific steps: selecting pelteobagrus vachelli fry and young litopenaeus vannamei with healthy body and good quality respectively; before conducting mixed breeding, disinfecting a pond and applying a fertilizer; putting 26 million larvae of young litopenaeus vannamei in the pond, breeding for 30-35 days, gradually adding water till the water level is 1.5 m or above, and then putting 0.3 million larvae of pelteobagrus vachelli fry in the pond; inspecting the pond for three times a day, to be specific, in the morning, at noon and in the evening; keeping abreast of water level, water quality and the activity conditions of the pelteobagrus vachelli and the litopenaeus vannamei, and controlling the pH to 8-9 and the dissolved oxygen to 4.5-5 mg/L. According to the pelteobagrus vachelli and litopenaeus vannamei mixed breed method, the pelteobagrus vachelli and litopenaeus vannamei mixed breeding makes the breeding space effectively utilized, also reduces disease outbreaks, and indirectly plays a role in ecological regulation; reasonable delivery time and quantity of the pelteobagrus vachelli and the litopenaeus vannamei ensure the survival rates of the pelteobagrus vachelli and the litopenaeus vannamei, and create greater economic benefits.

Description

Technical field [0001] The invention relates to the field of culture of yellow catfish and Penaeus vannamei, in particular to a method for polyculture of yellow catfish and Penaeus vannamei. Background technique [0002] Penaeus vannamei is one of the three largest prawns with the highest production yield in the world today. It has delicious meat and high nutritional value, and is deeply loved by consumers. However, during the intensive culture of Penaeus vannamei, the shrimp larvae have poor resistance, and the onset of disease is getting earlier and earlier. Once a small amount of shrimp larvae become ill, they will spread rapidly, resulting in mass death of a large number of shrimps, which is difficult to control. An immeasurable loss. [0003] Yellow catfish has tender meat, delicious taste, rich protein, low fat content, no intermuscular spines, large edible part, not easy to die, and it can be marketed fresh, and is very popular among consumers. With the improvement of livi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/59
CPCA01K61/00Y02A40/81
Inventor 于士国
Owner TIANJIN YUNHUA AGRI TECH DEV CO LTD
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