Module independent synthesis cultivation method for fishes and mussels
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A breeding method and technology of breeding technology, which are applied in the field of modular independent fish and mussel comprehensive breeding, can solve problems such as low ecological efficiency, and achieve the effects of stabilizing the breeding environment, speeding up the breeding speed, and optimizing the efficiency of resource utilization.
Inactive Publication Date: 2008-12-03
浙江梵沛珍珠股份有限公司
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Problems solved by technology
However, the current polyculture model of fish and mussels is mainly to simply raise fish and mussels in the same pond, and the ecological efficiency is low
Method used
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Examples
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Effect test
Embodiment 1
[0014] Embodiment 1: The object of intensive culture in fish ponds is tilapia
[0015] 1) Determine the matching ratio of tilapia ponds and mussel ponds as 2:1, excavate 20cm of clam pond bottom mud, and add this bottom mud to tilapia ponds, and obtain a water level drop between the two ponds of about 30cm, set the valve between the two ponds.
[0016] 2) Add new water to tilapia in May of the year, and stock 2000 tilapia (50g) per mu.
[0017] 3) Breeding tilapia and testing water quality in real time.
[0018] 4) In the first ten days of June, the tilapia breeding wastewater was injected into the clam ponds, and the water quality was analyzed, nitrogen, phosphorus and other substances were added to balance the nutrient levels and cultivate microalgae.
[0019] 5) In mid-June, the small clam that multiplied in that year was hanged and raised, 5,000 per mu.
[0020] 6) Check the water quality of fish ponds and mussel ponds in real time, and regularly (about 15 days) dischar...
Embodiment 2
[0027] Example 2: The object of intensive culture in fish ponds is carp
[0028] 1) Determine the matching ratio of carp ponds and clam ponds to be 2.5:1, excavate 20cm of clam pond bottom mud, and add this bottom mud to carp ponds to obtain a water level drop of about 20cm between the two ponds, and set up valves Between the two ponds.
[0029] 2) Add new water to carp ponds in June of a year, and stock 10,000 carp and summer squid per mu.
[0030] 3) Breeding carp and testing water quality in real time.
[0031] 4) Half a month after the carp fry enter the pond, inject the aquaculture wastewater into the mussel pond, conduct water quality analysis, add nitrogen, phosphorus and other substances, balance the nutrient level, and cultivate microalgae.
[0032] 5) In mid-to-late June, the small clam that multiplied in that year was hanged and raised, 5,000 per mu.
[0033] 6) Real-time detection of water quality in fish ponds and mussel ponds, and regularly (about 15 days) dra...
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Abstract
The invention discloses a module independent fish-clam composite cultivation technology, which comprises the following steps that: (1) a fishpond and a clam pond are respectively arranged so as to culture fish and clam separately; (2) waste water in the fishpond is discharged into the clam pond; and (3) water quality analysis of the clam pond is carried out, and nitrogen and phosphorus are added so as to ensure that the ratio between nitrogen and phosphorus reaches to 7:1 and that the concentration of microalgae reaches to 500 to 1,000 per ml. On the basis of the in-the-same-pond cultivation mode of the prior fish-clam mixed cultivation, the cultivation technology divides the fishpond and the clam pond into independent units at first so as to realize separate breeding and stabilize cultivation environment; therefore, the cultivation technology is propitious to carry out standardized operation and management of each independent unit, and greatly increases the bioenergy flow efficiency of each independent unit; then, fishpond waste water is periodically discharged to the clam pond, thereby realizing composite cultivation of fish and clam. Moreover, the cultivation technology realizes realtime monitoring of the quality of fishpond waste water, and adjusts the balance of nutritive salt in water in time so as to meet the requirements of microalgae growth, thereby providing adequate nutrition for hyriopsiscumingii, quickening up the cultivation speed of pearl and optimizing resource utilization efficiency.
Description
technical field [0001] The invention relates to an aquaculture method, in particular to a modular independent fish and mussel comprehensive cultivation method. Background technique [0002] Traditional aquaculture is seriously polluted by itself. In terms of freshwater aquaculture, it is estimated that raising 1 ton of freshwater fish produces feces equivalent to the feces of 20 fattened pigs; with the conversion of farming methods to intensification, the breeding density and feeding amount also increase accordingly, and self-pollution in the breeding process aggravated. According to reports, in the cultivation of the tentacle carp, its metabolites account for 20% to 35% of the feeding amount, and 10% to 40% of the residual bait; the total solid excretion of salmon trout and channel catfish (ignoring the residual bait) respectively 40% to 52% and 18% to 69% of the feeding amount. The main component of fish metabolites (including decomposition products of residual bait) is...
Claims
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Application Information
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