Method for increasing breeding yield and benefit of pond mainly for breeding grass carps
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A grass carp and pond technology, applied in fish farming, climate change adaptation, animal feed, etc., can solve problems such as increasing the risk of drug residues, affecting yield and efficiency, and jeopardizing product quality and safety, and achieving the effect of making full use of water space.
Active Publication Date: 2017-10-03
FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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Problems solved by technology
However, with the improvement of intensification of pond culture, breeding diseases are becoming more and more prominent. Generally, the mortality rate of grass carp cultured in ponds is as high as 45%, which seriously affects the output and benefits. risk, and endanger product quality and safety
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Embodiment 1
[0066] The specific operation steps to improve the production and efficiency of the main grass carp pond culture are as follows:
[0067] (1) Pond preparation
[0068] The main grass carp pond should choose an area of 10 × 667m 2 , a pond with a depth of 3m. Before breeding, the pond preparation steps are:
[0069] (1.1) On December 10th, remove excess silt from the pond and keep the silt depth at 10cm;
[0070] (1.2) On December 20, repair the pond bottom and ridge, drain and expose to the sun;
[0071] (1.3) On January 10, the pond was filled with water to 0.2m, and the pond was disinfected with quicklime at a dosage of 75kg / 667m 2 , After one week of disinfection, inject water to a depth of 2.5m.
[0072] (2) Breeding facility preparation
[0073] Each pond is equipped with two aeration machines with a power of 3kw, two bait throwing machines, and one set of generator sets.
[0074] (3) Stocking of fish species
[0075] (3.1) Breeding species, time, specification, m...
Embodiment 2
[0130] The specific operation steps to improve the yield and benefit of main grass carp pond culture are as follows:
[0131] (1) Pond preparation
[0132] The main grass carp pond should choose an area of 10×667m 2 , Pond with a depth of 3m. Before breeding, the pond preparation steps are:
[0133] (1.1) On December 15, remove excess silt from the pond and keep the silt depth at 10cm;
[0134] (1.2) On December 25, repair the pond bottom and ridge, drain and expose to the sun;
[0135] (1.3) On January 15, the pond was filled with water to 0.2m, and the pond was disinfected with quicklime at a dosage of 75kg / 667m 2 , After one week of disinfection, inject water to a depth of 2.5m.
[0136] (1) Breeding facility preparation
[0137] Each pond is equipped with two aeration machines with a power of 3kw, two bait throwing machines, and one set of generator sets.
[0138] (2) Stocking of fish species
[0139] (3.1) Breeding species, time, specification, mantissa
[0140...
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Abstract
The invention relates to a method for increasing breeding yield and benefit of pond mainly for breeding grass carps. The method includes that the grass carps are bred mainly, silver Prussian carps, megalobrama amblycephala, silver carps and bighead carps and plagiognathops microlepis are bred secondarily, and only the grass carps need to be fed during feeding. Different fishes are complementary in eating habit and low in competitive eating relation and are positioned in different ecological niche spaces, so that water body space is utilized fully. Fingerlings of a same variety and different in specification are bred in a same pond, large-specification fingerlings can be fished out for selling after reaching commercial specifications through feeding for a period of time, and some small-specification fingerlings (summerlings) are supplemented at the same time, so that rotation of fishing and releasing is realized; after a breeding period is finished, the fingerlings supplemented in the middle of breeding can serve as fingerlings of commercial fishes of the next year, so that relay-type breeding is formed. Vaccines are injected to the grass carps to prevent diseases, so that survival rate is up to higher than 95%, consumption of fishery medicine is reduced, and safety is guaranteed. By feeding green grass, feed cost is lowered greatly, and feed cost is saved by 30-40%; fish meat quality is better.
Description
technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for raising fish in a pond. Background technique [0002] In 2015, the output of freshwater aquaculture in my country was 30.6227 million tons, of which the output of grass carp culture was 5.6762 million tons, accounting for 18.54% of the total freshwater aquaculture. However, with the improvement of the intensive degree of pond aquaculture, aquaculture diseases are becoming more and more prominent. The mortality rate of grass carp cultured in general ponds is as high as 45%, which seriously affects the output and benefits. Farmers use a lot of drugs to prevent and control diseases, which not only increases drug residues risk, and endanger product quality and safety. The above problems seriously affect the economic benefits of grass carp breeding and frustrate the enthusiasm of farmers. On the basis of experimental research and summary of production exp...
Claims
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Application Information
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