Pollution-free healthy culture method of grouper in pond

A breeding method and technology of grouper ponds, which are applied in the field of pollution-free and healthy grouper pond farming, can solve problems such as irregular breeding techniques, low grouper breeding efficiency, and low product quality, so as to reduce the use of drugs and improve products The effect of value and economic benefit improvement

Inactive Publication Date: 2010-09-22

广西红榄科技有限公司

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AI-Extracted Technical Summary

Problems solved by technology

However, the traditional farming methods are high in cost, heavy in pollution, low in output, and poor in quality. For example, shallow sea cage culture requires a large number of cages and a large number of personnel to guard them. It is vulnerable to natural disasters. Grouper often escapes. There are many poor diseases, pesticide application, excretion, and residual bait further aggravate the deterioration of the cage culture environment, resulting in low...

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Method used

(4) bait throws something and feeds: seed early stage is cultivated, throws something and feeds fresh seawater small miscellaneous fish paste, and seed is cultivated in the later period, throws something and feeds grouper special commercial feed, regularly adds Sanhuang Powder, Jinwei'an in bait and other Chinese herbal medicines and multivitamins to enhance the immunity of fish;

(4) bait throws something and feeds: seed early stage is cultivated, throws something and feeds fresh seawater small miscellaneous fish slurry, and bait coefficient is 1: 11, and daily bait throwing amount is 12% of fry body weight, adds young eel feed in fish slurry And regular addition of seawater fish multidimensional, to increase nutrition and bonding, to avoid excessive small miscellaneous fish paste from spreading to the pond water body, polluting water quality, seedlings are cultivated in the middle and later stages, and soft pellet feed is fed, and the bait coefficient is 1: 0.8...

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Abstract

The invention discloses a pollution-free healthy culture method of grouper in a pond, which comprises the following steps: (1) pond preparation: selecting sand substrates or silt substrates as pond substrates, firstly insolating and dredging, then pouring the substrates into deep sea water, applying quick lime per mu for sterilizing and improving the substrates, and discharging the quick lime after 24h; (2) working before seeding: after the pond is prepared well, pouring water, sterilizing the whole pond with chlorine dioxide, and applying special fertilizer for aquiculture and beneficial microbial agents containing bacillus after 24h; (3) seedling stocking: stocking seedlings according to the density of 700-1300 per mu; (4) bait feeding: feeding fresh sea water trash fish cream at the early stage of culture of seedlings, and feeding soft granulated feed or special commercial feed for grouper at the middle and later stages of culture of seedlings; and (5) water quality management: controlling the transparency and the pH value of pond water, and regularly applying beneficial microbes once into the pond. The culture method of grouper of the invention controls the water quality by applying beneficial microbes and organic fertilizer, reduces the use of medicines and improves the value of products.

Application Domain

Climate change adaptationPisciculture and aquaria

Technology Topic

SeawaterDeep sea +11

Examples

Experimental program(4)

Example Embodiment

[0020] Example 1

[0021] (1) Pond preparation: The pond has an area of 5 acres and a depth of 2 meters. The bottom of the pond is covered with tiled water canisters to adapt to the habit of groupers who like to drill holes. The bottom of the pond is sandy and muddy. It is exposed to the sun and dredged, and then put into 20cm In deep sea water, 70 kg of quicklime per mu is used to disinfect and improve the bottom quality, and drain after 24h;

[0022] (2) Pre-emergence work: After the pond is prepared, enter the water to a depth of 100cm, and disinfect the whole pond with chlorine dioxide to make the concentration 1.0mg/L. After 24 hours, apply aquaculture special fertilizer quick-acting amino source 4mg/l and containing Bacillus 2 billion/gram of beneficial microbial preparation 2mg/L, making the water color like bean green or brown;

[0023] (3) Seed stocking: select grouper seedlings with a body length of 12 to 15 cm in neat individuals and stock them at a density of 1,000 fish/mu;

[0024] (4) Feeding of bait: the seed is cultivated in the early stage, fresh seawater trash fish paste is fed, the seed is cultivated in the middle and late stage, and the special commercial feed for grouper is fed. The bait is regularly added with Chinese herbal medicines such as Sanhuang San and Jinwei'an. Multi-vitamins to enhance the immunity of fish;

[0025] (5) Water quality management: control the transparency of the pool water at 50cm and pH value at 7.8, and apply EM bacteria to the pond once every 20 days to timely degrade the organic matter that enters the water body, such as animal carcasses and residual bait, so as to reduce organic oxygen consumption and stabilize The water color of the pond inhibits the growth and reproduction of pathogenic bacteria and creates a good water quality.

[0026] After 2 years of breeding 730 kg grouper per mu, the survival rate is 78%, and the weight is 700-1000 g.

Example Embodiment

[0027] Example 2

[0028] (1) Pond preparation: The pond has an area of 8 mu and a depth of 1.5 meters. The bottom of the pond is covered with rubbish. The bottom of the pond is sandy. It is exposed to the sun, dredged, and then brought into the 30cm deep sea water, and 30 kilograms of quicklime per mu is used for disinfection and disinfection. Improve the bottom quality and drain after 24h;

[0029] (2) Work before seedling release: After the pond is ready, enter the water to a depth of 120cm, disinfect the whole pond with chlorine dioxide to make the concentration 0.5mg/L, and apply 2mg/l of aquaculture special fertilizer and bacterial fertilizer after 24h. Bacillus 2 billion/gram of beneficial microorganism preparation 1mg/L;

[0030] (3) Seed stocking: select grouper seedlings with a body length of 12 to 15 cm that are neat and tidy. Before stocking, the seed should be immersed in a povidin-iodine solution with an effective iodine concentration of 0.3 mg/L for 5 minutes to prevent the fish from being injured and infected and improve survival Rate and prevent the occurrence of diseases, stocked at a density of 700 fish/mu;

[0031] (4) Feeding of bait: Cultivation of seedlings in the early stage, feeding fresh seawater trash fish paste, bait coefficient of 1:5, daily feeding amount of 8% of the body weight of the fry, seedling cultivation in the middle and late stages, feeding soft particles For feed, the feed factor is 1:1.6, and the daily feed amount is 5% of the seed weight;

[0032] (5) Water quality management: control the transparency of the pond water at 60cm and the pH value at 8.5, apply Bacillus subtilis to the pond once every 15 days, add 5cm of sea water every 5 days in the early stage of aquaculture until the depth of the pond is 1.5m, and discharge every 3 days in the middle and late stages The bottom sewage is supplemented with fresh sea water at the same time, and the water exchange rate is 7% to keep the water quality fresh, and it can be changed more during the high temperature period.

[0033] After 2 years of breeding 800 kg grouper per mu, the survival rate is 83%, and the weight is 800-1100 g.

Example Embodiment

[0034] Example 3

[0035] (1) Pond preparation: The pond has an area of 6.5 acres and a depth of 1.7 meters. Perforated tires are placed at the bottom of the pond. The bottom of the pond is sandy. It is exposed to the sun and dredged, and then brought into 25cm deep sea water, and 50 kilograms of quicklime per acre is used for disinfection and disinfection. Improve the bottom quality and drain after 24h;

[0036] (2) Pre-emergence work: After the pond is prepared, enter the water to a depth of 113cm, disinfect the whole pond with chlorine dioxide to make the concentration 0.75mg/L, and apply 3.6mg/l and special fertilizer for aquaculture after 24 hours. 1.7mg/L of beneficial microbial preparation containing 2 billion bacillus/g;

[0037] (3) Seed stocking: select grouper seedlings with a body length of 12 to 15 cm in neat individuals, soak the seed with a povidin-iodine aqueous solution with an effective iodine concentration of 0.7 mg/L for 3 minutes before stocking, and stock them at a density of 1300 fish/mu At the same time, 70 black sea breams/mu and 130 mullets of the same specifications are polycultured to remove residual bait, excess organic matter and algae, prevent water pollution, and maintain good water quality. ;

[0038] (4) Feeding of bait: the seedlings are cultivated in the early stage, and fresh seawater trash fish paste is fed, the bait coefficient is 1:11, the daily bait amount is 12% of the fry weight, and the elver feed is added to the fish paste and added regularly Marine fish are multi-dimensional, which plays a role in increasing nutrition and adhesion, avoiding excessive small trash fish paste from spreading to the pond water body, polluting the water quality, and cultivating seedlings in the middle and late stages. They are fed soft pellets with a feed coefficient of 1:0.8. Feeding amount is 2% of seed body weight;

[0039] (5) Water quality management: control the transparency of the pond water at 40cm and pH value at 8.1, apply photosynthetic bacteria to the pond once every 18 days, add 3cm of sea water every 3 days in the early stage of aquaculture until the depth of the pond is 1.7m, and discharge to the bottom every 5 days in the middle and late stages The sewage is supplemented with fresh sea water, and the water exchange rate is 10%.

[0040] After 2 years of breeding 880 kg of grouper per mu, the survival rate is 93%, and the weight is 900-1300g.

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Classification and recommendation of technical efficacy words

Reduce the impact
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Pollution-free healthy culture method of grouper in pond

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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