Small water body breeding method for litopenaeus vannamei

Abstract

The invention relates to a small water body breeding method for litopenaeus vannamei and belongs to the technical field of aquatic product breeding. The method includes six steps of seawater treatment, larva placing, environmental control, feedstuff adding, water quality adjusting and controlling and quality inspection. The breeding method is simple, convenient to operate, and suitable for breeding high-quality and healthy litopenaeus vannamei seeds, the appearance of bred seeds is free from malformation, neat, uniform, and the litopenaeus vannamei can normally and forcefully swim and ingest food, good in property against the current and capable of sensitively reacting.

Description

technical field

[0001] The invention relates to a method for cultivating seedlings of Litopenaeus vannamei in small water, which relates to a technology for growing seedlings of Litopenaeus vannamei by controlling water quality by using microbial preparations and feeding biological baits such as algae and yeast, and belongs to the technical field of aquatic product cultivation. Background technique

[0002] The prawns cultured in my country's seawater mainly consist of prawns such as Chinese prawns, Japanese prawns, monodon and vannamei. Among them, Penaeus vannamei, also known as Litopenaeus vannamei, is native to the waters of the Pacific coast of the Americas. It is one of the excellent varieties of prawns recognized in the world today, and its output has ranked among the top three high-yielding shrimp species in the world. Since its introduction in the late 1980s, Litopenaeus vannamei culture has developed rapidly in China. At present, the annual breeding output in Chin...

Examples

Embodiment 1

[0031] a. Seawater treatment: Seawater is treated with sand filtration, ozone and chemical disinfection. Ozone is generated by an ozone generator with a dosage of 0.01mg / L. After ozone disinfection, chlorine dioxide (ClO 2 ) 30 mL / m 3 For disinfection, inflate and stir well, let it stand for 12 hours, then use sodium thiosulfate to eliminate residual chlorine, and then filter through filter membranes with pore sizes of 10, 1.0, and 0.5 μm in turn;

[0032] b. Larvae stocking: put high-quality and healthy Litopenaeus vannamei nauplii into lm at a density of 150 / liter 3 in a circular aquarium;

[0033] c. Environmental Control:

[0034] Water temperature: 28°C for the psyllium stage, 29°C for the mysis larvae stage, and 30°C for the larval stage;

[0035] Dissolved oxygen: above 6.0mg / L, the amount of aeration gradually increases with the growth and development of shrimp seedlings;

[0036] Salinity: 25‰;

[0037] Lighting: total darkness;

[0038] d. Feed...

Embodiment 2

[0048] a. Seawater treatment: Seawater is treated with sand filtration, ozone and chemical disinfection. Ozone is generated by an ozone generator with a dosage of 0.03 mg / L. After ozone disinfection, chlorine dioxide (ClO 2 ) 50 mL / m 3 For disinfection, inflate and stir well, let it stand for 24 hours, then use sodium thiosulfate to eliminate residual chlorine, and then filter through filter membranes with pore sizes of 10, 1.0, and 0.5 μm in turn;

[0049] b. Larvae stocking: put high-quality and healthy Litopenaeus vannamei nauplii into lm at a density of 200 / liter 3 in a circular aquarium;

[0050] c. Environmental Control:

[0051] Water temperature: 29°C for the psyllium stage, 30°C for the mysis larvae stage, and 27°C for the larval stage;

[0052] Dissolved oxygen: above 6.0mg / L, the amount of aeration gradually increases with the growth and development of shrimp seedlings;

[0053] Salinity: 30‰;

[0054] Lighting: total darkness;

[0055] d. Fee...

Embodiment 3

[0065] a. Seawater treatment: Seawater is treated with sand filtration, ozone and chemical disinfection. Ozone is generated by an ozone generator with a dosage of 0.01 mg / L. After ozone disinfection, chlorine dioxide (ClO 2 ) 30 mL / m 3 Disinfect, inflate and stir well, let it stand for 12 hours, then use sodium thiosulfate to eliminate residual chlorine, and then filter through filter membranes with pore sizes of 10, 1.0, and 0.5 μm in turn;

[0066] b. Larvae stocking: put high-quality and healthy Litopenaeus vannamei nauplii into lm at a density of 200 / liter 3 in a circular aquarium;

[0067] c. Environmental Control:

[0068] Water temperature: 29°C for the psyllium stage, 30°C for the mysis larvae stage, and 27°C for the larval stage;

[0069] Dissolved oxygen: above 6.0mg / L, the amount of aeration gradually increases with the growth and development of shrimp seedlings;

[0070] Salinity: 30‰;

[0071] Lighting: total darkness;

[0072] d. Feed feedin...

technical field

[0001] The invention relates to a method for cultivating seedlings of Litopenaeus vannamei in small water, which relates to a technology for growing seedlings of Litopenaeus vannamei by controlling water quality by using microbial preparations and feeding biological baits such as algae and yeast, and belongs to the technical field of aquatic product cultivation. Background technique

[0002] The prawns cultured in my country's seawater mainly consist of prawns such as Chinese prawns, Japanese prawns, monodon and vannamei. Among them, Penaeus vannamei, also known as Litopenaeus vannamei, is native to the waters of the Pacific coast of the Americas. It is one of the excellent varieties of prawns recognized in the world today, and its output has ranked among the top three high-yielding shrimp species in the world. Since its introduction in the late 1980s, Litopenaeus vannamei culture has developed rapidly in China. At present, the annual breeding output in Chin...

Examples

Embodiment 1

[0031] a. Seawater treatment: Seawater is treated with sand filtration, ozone and chemical disinfection. Ozone is generated by an ozone generator with a dosage of 0.01mg / L. After ozone disinfection, chlorine dioxide (ClO 2 ) 30 mL / m 3 For disinfection, inflate and stir well, let it stand for 12 hours, then use sodium thiosulfate to eliminate residual chlorine, and then filter through filter membranes with pore sizes of 10, 1.0, and 0.5 μm in turn;

[0032] b. Larvae stocking: put high-quality and healthy Litopenaeus vannamei nauplii into lm at a density of 150 / liter 3 in a circular aquarium;

[0033] c. Environmental Control:

[0034] Water temperature: 28°C for the psyllium stage, 29°C for the mysis larvae stage, and 30°C for the larval stage;

[0035] Dissolved oxygen: above 6.0mg / L, the amount of aeration gradually increases with the growth and development of shrimp seedlings;

[0036] Salinity: 25‰;

[0037] Lighting: total darkness;

[0038] d. Feed...

Embodiment 2

[0048] a. Seawater treatment: Seawater is treated with sand filtration, ozone and chemical disinfection. Ozone is generated by an ozone generator with a dosage of 0.03 mg / L. After ozone disinfection, chlorine dioxide (ClO 2 ) 50 mL / m 3 For disinfection, inflate and stir well, let it stand for 24 hours, then use sodium thiosulfate to eliminate residual chlorine, and then filter through filter membranes with pore sizes of 10, 1.0, and 0.5 μm in turn;

[0049] b. Larvae stocking: put high-quality and healthy Litopenaeus vannamei nauplii into lm at a density of 200 / liter 3 in a circular aquarium;

[0050] c. Environmental Control:

[0051] Water temperature: 29°C for the psyllium stage, 30°C for the mysis larvae stage, and 27°C for the larval stage;

[0052] Dissolved oxygen: above 6.0mg / L, the amount of aeration gradually increases with the growth and development of shrimp seedlings;

[0053] Salinity: 30‰;

[0054] Lighting: total darkness;

[0055] d. Fee...

Embodiment 3

[0065] a. Seawater treatment: Seawater is treated with sand filtration, ozone and chemical disinfection. Ozone is generated by an ozone generator with a dosage of 0.01 mg / L. After ozone disinfection, chlorine dioxide (ClO 2 ) 30 mL / m 3 Disinfect, inflate and stir well, let it stand for 12 hours, then use sodium thiosulfate to eliminate residual chlorine, and then filter through filter membranes with pore sizes of 10, 1.0, and 0.5 μm in turn;

[0066] b. Larvae stocking: put high-quality and healthy Litopenaeus vannamei nauplii into lm at a density of 200 / liter 3 in a circular aquarium;

[0067] c. Environmental Control:

[0068] Water temperature: 29°C for the psyllium stage, 30°C for the mysis larvae stage, and 27°C for the larval stage;

[0069] Dissolved oxygen: above 6.0mg / L, the amount of aeration gradually increases with the growth and development of shrimp seedlings;

[0070] Salinity: 30‰;

[0071] Lighting: total darkness;

[0072] d. Feed feedin...