Spat cultivating method capable of preventing spat accumulation

A seedling box and trachea technology, applied in fish farming, application, animal husbandry, etc., can solve the problems of shellfish accumulation, affecting the survival rate and emergence rate of shellfish seedlings, and hypoxia, so as to achieve less damage to shellfish seedlings and facilitate the process Effects of chemical management and adequate oxygen supply

Active Publication Date: 2016-08-24
金华市九色珍珠研究所 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Farmers need to pay a lot of time and labor costs; and even so, due to labor constraints, if the pool water is not stirred in time, or the stirring is not perfect, some scallop seedlings will accumulate and die due to lack of oxygen, which will seriously affect the survival rate of scallop seedlings and germination rate

Method used

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  • Spat cultivating method capable of preventing spat accumulation
  • Spat cultivating method capable of preventing spat accumulation
  • Spat cultivating method capable of preventing spat accumulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A method for raising seedlings to prevent shellfish seedlings from piling up, comprising:

[0040] Cultivate the shellfish in the nursery box, ventilate from the bottom of the nursery box and use the momentum of the air flow to fully lift the shellfish accumulated at the bottom of the nursery box to the middle and upper layers of the water, and then stop the ventilation, so that the shellfish are under the action of gravity. Re-sink and evenly distribute on the bottom of the seedling box.

Embodiment 2

[0042] A method for raising seedlings to prevent shellfish seedlings from piling up, comprising:

[0043] Cultivate the shellfish in the nursery box, ventilate from the bottom of the nursery box and use the momentum of the air flow to fully lift the shellfish accumulated at the bottom of the nursery box to the middle and upper layers of the water, and then stop the ventilation, so that the shellfish are under the action of gravity. Re-sink and evenly distribute on the bottom of the seedling box.

[0044] Wherein, the device for providing the air flow is: an air pipe connected with an air compression pump. The air compression pump is portable and powered by a battery; the air pipe is a hard air pipe, and the air pipe is also provided with a gas flow rate regulating device and a handle.

Embodiment 3

[0046] A method for raising seedlings to prevent shellfish seedlings from piling up, comprising:

[0047] Cultivate the shellfish in the nursery box, ventilate from the bottom of the nursery box and use the momentum of the air flow to fully lift the shellfish accumulated at the bottom of the nursery box to the middle and upper layers of the water, and then stop the ventilation, so that the shellfish are under the action of gravity. Re-sink and evenly distribute on the bottom of the seedling box.

[0048] Wherein, the device for providing the air flow is: an air pipe connected with a blower. The blower is a portable and battery-powered compression pump; the air pipe is a hard air pipe, and the air pipe is also provided with a gas flow rate regulating device and a handle.

[0049] The length of the seedling box is 55-65 cm, the width is 35-45 cm, and the depth is 12-18 cm.

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Abstract

The invention relates to the field of aquaculture of aquatic animals, in particular to a spat cultivating method capable of preventing spat accumulation. The spat cultivating method capable of preventing spat accumulation includes cultivating spats in spat cultivating boxes, and aerating from the bottoms of the spat cultivating boxes to sufficiently lift the spats accumulated at the bottoms of the spat cultivating boxes to the upper middle layer of water through impact force of air draught prior to stopping aerating so as to enable the spats to resettle and be evenly distributed at the bottoms of the spat cultivating boxes under the action of gravity. The spat cultivating method capable of preventing spat accumulation has the advantages of little damage to the spats, no stirring dead corners, spat distributing uniformity after stirring and capabilities of greatly improving working efficiency and reducing working strength. The spat cultivating method involves the spat cultivating boxes. By means of arranging the spat cultivating boxes on supports, space utilization ratio can be increased, flow management is facilitated, spat cultivating water flows circularly in the boxes, oxygen supply is more sufficient and richer nutrition is provided for the spats.

Description

technical field [0001] The invention relates to the field of aquatic animal breeding, in particular to a seedling raising method for preventing shellfish seedlings from accumulating. Background technique [0002] The clam seedlings (juvenile clams) that have just fallen off the fish body are about 0.3mm long. After about a month of cultivation, they can grow to 1.0-2.0cm. Juvenile mussels have relatively strict requirements on the cultivation environment, which requires sufficient dissolved oxygen and rich bait organisms. Generally, more than 40,000 seedlings emerge per square meter. In such a high-density environment, it is necessary to keep the water quality fresh and keep individual tiny clam seedlings from being washed away by the current, so the water flow cannot be too fast and can only flow in the upper layer, and the clam seedlings live in the bottom of the water Life. With the development of juvenile mussels and individual growth, it is necessary to gradually inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
Inventor 方爱萍张根芳朱韶华张文府
Owner 金华市九色珍珠研究所
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