Snapper breeding method

A breeding method and technology for red fish, applied in the field of red fish breeding, can solve problems such as hindering the sustainable development of product development, reducing flavor, etc., so as to improve the bait coefficient and survival rate, reduce the generation of aldehyde substances, and improve immunity. Effect

Inactive Publication Date: 2015-08-19
广西金海环岛渔业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the shallow sea culture process, due to the vigorous life activities and active enzyme systems in the red fish, many odorous metabolites are produced. In addition, the feed is generally artificial feed such as fish meal or spoiled miscellaneous fish and shrimp, which makes the original Just have the fish body fishy smell of fishy smell to be stronger, and local flavor is greatly reduced, and this kind of fishy smell is not accepted by consumers in general, and has seriously hindered its product development and the sustainable development of industry

Method used

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Effect test

Embodiment 1

[0018] 1) Choose Fangchenggang with barriers of islands and reefs, the seabed is gentle, the slope is small, the bottom is muddy or silty, the water depth is more than 10m, the seawater flow is straight and stable, the flow rate is 0.5-2m / s, and the salinity is 20-30. pH7.8~8.6, water quality transparency above 30cm, dissolved oxygen 5mg / L, non-pollution open sea area, sea water quality index conforms to the provisions of the Ministry of Agriculture of the People's Republic of China on the water quality of pollution-free food mariculture water. Put 100m in the offshore area more than 150m from the shore 3 Cage, the mesh of the cage is 5mm;

[0019] 2) Select American redfish species with a body length of 8-10cm, an average weight of 50g / tail, and a healthy body, well-proportioned body shape, smooth body surface, complete scales, and no disabilities. Stop eating for 1-2 days before shipment. Put them into cages at low tide, the water temperature is above 15°C, and the stocking...

Embodiment 2

[0024] 1) Choose Fangchenggang with barriers of islands and reefs, the seabed is gentle, the slope is small, the bottom is muddy or silty, the water depth is more than 10m, the seawater flow is straight and stable, the flow rate is 0.5-2m / s, and the salinity is 20-30. pH7.8~8.6, water quality transparency above 30cm, dissolved oxygen 5mg / L, non-pollution open sea area, sea water quality index conforms to the provisions of the Ministry of Agriculture of the People's Republic of China on the water quality of pollution-free food mariculture water. Put 100m in the offshore area more than 150m from the shore 3 Cage, the mesh of the cage is 10mm;

[0025] 2) Select American redfish species with a body length of 8-10cm, an average weight of 50g / tail, and a healthy body, well-proportioned body shape, smooth body surface, complete scales, and no disabilities. Stop eating for 1-2 days before shipment. Put it into the net cage when the tide is low, the water temperature is above 15°C, a...

Embodiment 3

[0030] 1) Choose Fangchenggang with barriers of islands and reefs, the seabed is gentle, the slope is small, the bottom is muddy or silty, the water depth is more than 10m, the seawater flow is straight and stable, the flow rate is 0.5-2m / s, and the salinity is 20-30. pH7.8~8.6, water quality transparency above 30cm, dissolved oxygen 5mg / L, non-pollution open sea area, sea water quality index conforms to the provisions of the Ministry of Agriculture of the People's Republic of China on the water quality of pollution-free food mariculture water. Put 100m in the offshore area more than 150m from the shore 3 Cage, the mesh of the cage is 10mm;

[0031] 2) Choose American redfish species with a body length of 8-10cm, an average weight of 50g / tail, and a healthy body, well-proportioned body shape, smooth body surface, complete scales, and no disabilities. Stop eating for 1-2 days before shipment. Put it into the net cage when the tide is low, the water temperature is above 15°C, a...

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Abstract

The invention discloses a snapper breeding method. The snapper breeding method includes steps of 1) putting a net cage; 2) throwing fry into the net cage; 3) feeding submersible minced fillet, lemon and tea leaves when fry is smaller than 10 cm long; feeding fish and shrimp, lemon and tea leaves when fry is longer than or equal to 10 cm long; 4) separating fry once every twelve to eighteen days when fry is smaller than 10 cm long and once every fifteen to twenty five days and replacing the net cage with meshes of 15 to 20 mm when fry is 10 to 15 cm long and once every thirty to forty days and replacing the net cage with meshes of 20 to 25 mm when fry is longer than 15 cm. Lemon and tea leaves are fed in the feeding process, so as to effectively suppress lipoxidase activity and reduce aldehydes, and fishy smell of snappers is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and mainly relates to a method for cultivating red fish. Background technique [0002] American redfish (Sciaenops ocellatus), referred to as redfish for short, is a high-protein, low-fat marine economic fish with rich nutritional value and good health functions. One of the high-end hot-selling aquatic products in the world. In the shallow sea culture process, due to the vigorous life activities and active enzyme systems in the red fish, many odorous metabolites are produced. In addition, the feed is generally artificial feed such as fish meal or spoiled miscellaneous fish and shrimp, which makes the original Just having fish body fishy smell of fishy smell is stronger, and flavor reduces greatly, and this fishy smell is not accepted by consumers in general, and has seriously hindered its product development and the sustainable development of industry. According to the analysis, the content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/14A23K1/18A23K1/16
CPCY02A40/81A01K61/00
Inventor 韦金德
Owner 广西金海环岛渔业有限公司
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