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Eco-aggregation type scapharca subcrenata spat breeding method

A technology of polymerization type and clams, applied in the field of ecological aggregation type breeding of clams, can solve the problems of high cost, low efficiency of large-scale production of clams, etc., so as to improve efficient utilization, avoid the use of antibiotics, and improve survival. rate effect

Active Publication Date: 2016-07-20
MARINE BIOLOGY INST OF SHANDONG PROVINCE
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Problems solved by technology

However, the above method still cannot solve the problems of low efficiency and high cost in large-scale production of clam seedlings, and the survival rate of seedlings is only about 30%.

Method used

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  • Eco-aggregation type scapharca subcrenata spat breeding method

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with examples.

[0026] The clam seed ecological aggregation type breeding method comprises the steps:

[0027] 1) Use sandy and mud-bottom culture ponds near the sea as water sources for seedlings. Clean up the ponds from April to May, empty the large multicellular algae such as steel wire algae in the ponds, and expose them to the sun for 7 days; Disinfect the pond and soak it in water for 3 days; during the spring tide period, it will receive the tide repeatedly for 3 days, and fill the pond with fresh seawater.

[0028] 2) At the end of May, single-cell algae bait culture was started in the seaside aquaculture pond; the algae used included: Isochrysis, Chrysoflagellate, Chaetoceros and Phytophthora.

[0029] 3) Select cockles in the Jimo sea area as broodstock. After the natural seawater temperature rises to 24°C in June, samples are taken every 3 to 5 days for gonad inspection. Boxes are trans...

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Abstract

The invention relates to the technical field of aquaculture, in particular to an eco-aggregation type scapharca subcrenata spat breeding method. The method includes steps: taking a coastal aquaculture pond as a breeding water source, using microbial preparations for controlling water quality of the pond in a breeding process, and optimizing and reinforcing bait absorption and utilization; after larval metamorphosis, enabling larvae to directly attach to the bottom of the pond without adoption of a substratum, directly using water of the pond for breeding, feeding a small quantity of unit-cell alga baits such as platymonas for 3-5 days, stopping feeding, and enabling juveniles to be completely fed with unit-cell alga baits in water of the pond; when the juveniles grow to 3mm above, performing pond breeding or marine suspension aquaculture. By means of micro-ecology, antibiotic drugs are avoided in a whole spat breeding process, and accordingly food safety is guaranteed; nutrition optimization, natural conversion and comprehensive substitution of the artificially cultured unit-cell alga baits and the natural baits in the pond are realized; in addition, due to removal of the substratum, operation procedures are optimized.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an ecological aggregation breeding method for cockle seedlings. Background technique [0002] Scapharca subcrenata, commonly known as clams, cockles, and corrugated clams, is an important benthic shellfish that is widely distributed in the coastal areas of my country, and is particularly rich in resources in shallow water areas such as Laizhou Bay, Bohai Bay, Liaodong Bay, and Liaodong Bay. Because of its delicious meat and high medicinal value, it is deeply loved by people. However, due to environmental pollution and overfishing in recent years, the resources of cockles have gradually decreased since the late 1970s, and now they cannot become a professional fishery, but can only be used as bycatch objects. With the breakthrough of artificial seedling technology, artificial seedling cultivation of cockles has been carried out in many places, but how to improve the production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 李莉孙少华张少春邹琰逄邵楠郭文王晓红胡爱霞
Owner MARINE BIOLOGY INST OF SHANDONG PROVINCE
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