Overwintering cultivation method of seawater fish black sea bream net cage

Active Publication Date: 2014-12-24
响水县八圩海水养殖有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that black bream cage culture in Zhoushan sea area is difficult to overwinter, the present invention provides a seawater fish black brea

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of seawater fish black sea bream cage overwintering culture method, concrete method is as follows:

[0031] A. Sea area selection

[0032] When the water temperature in the sea area of ​​Zhoushan is lower than 15°C in winter, the black sea bream breeding net cages set up in the open sea area will be slowly dragged by boat (speed less than 1.0 m / s) to the semi-enclosed bay during the neap tide, and re-opened. Carry out pile fixing. It is required that the bottom of the sea should be gentle, the bottom should be muddy or silty, the water depth should be more than 8m, rich in nutrients and pollution-free, the seawater flow should be gentle, and the flow rate should be less than 1.0 m / s, and the seawater quality index should meet NY5052-2001 pollution-free food Water quality standard for mariculture water, salinity 20-30‰, pH value 7.8-8.6, dissolved oxygen above 5mg / L;

[0033] In the spring of the second year, when the water temperature in the sea area of ​​Zhous...

Embodiment 2

[0046] A seawater fish black sea bream cage overwintering culture method, the specific method is the same as embodiment 1, the difference is that the feed used is mixed by the following components in parts by weight: 23 parts of white fish meal, 18 parts of soybean meal, fermented 18 parts of soybean meal, 6 parts of shrimp base powder, 18 parts of high-gluten flour, 8 parts of fish oil, 8 parts of corn oil, 5 parts of squid paste, 3 parts of carboxymethyl cellulose, 1 part of soybean lecithin, 1 part of sodium dihydrogen phosphate, 0.20 parts of vitamin C, 0.03 parts of vitamin E, 0.5 parts of multivitamins, 0.5 parts of compound minerals, 0.8 parts of choline chloride, 0.4 parts of betaine, 0.01 parts of allicin, 0.01 parts of curcumin, and 0.1 parts of compound enzyme preparations.

[0047] Compound enzyme formulation: 5% protease, 2% amylase, 3% phytase, 2% xylanase, 3% β-mannanase, and the balance is corncob powder.

Embodiment 3

[0049] A seawater fish black bream cage overwintering culture method, the specific method is the same as embodiment 1, the difference is that the feed used is mixed by the following components in parts by weight: 20 parts of white fish meal, 20 parts of soybean meal, fermented 20 parts of soybean meal, 5 parts of shrimp base powder, 15 parts of high-gluten flour, 6 parts of fish oil, 8 parts of corn oil, 4 parts of squid paste, 2 parts of carboxymethyl cellulose, 1 part of soybean lecithin, 1 part of sodium dihydrogen phosphate, 0.01 part of vitamin C, 0.03 part of vitamin E, 1 part of multivitamin, 1 part of compound mineral, 0.6 part of choline chloride, 0.6 part of betaine, 0.20 part of allicin, 0.20 part of curcumin, 0.2 part of compound enzyme preparation.

[0050] Compound enzyme formulation: 4% protease, 3% amylase, 4% phytase, 3% xylanase, 3% β-mannanase, and the balance is corncob powder.

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Abstract

The invention belongs to seawater fish cultivation technique, and particularly relates to an overwintering cultivation method of a seawater fish black sea bream net cage. The method specifically comprises the following steps of A, selection of a sea area, that is to say, a seawater quality index conforms to an NY5052-2001 water quality standard of seaculture of pollution-free food, the salinity is 2-3%, the pH value is 7.8-8.6 and the dissolved oxygen is more than 5 mg/L; when the water temperature of the sea area rises to more than 15 DEG C in the following spring, a black sea bream cultivation net cage is slowly hauled back to an open sea area to cultivate; B, selection of the net cable and cultivation density, that is to say, the overwintering cultivation net cage selects a conventional small net cage or a deep water net cage, a plurality of net cages form a net row type structure and are arranged in parallel along the downstream direction; during overwintering cultivation, the cultivation density of the black sea bream net cage is 8-10 g/cm<3>; C, feed selection; D, a feeding method of a feed, that is to say, feeding is not carried out under the conditions of the water temperature in winter of lower than 10 DEG C and rainy days, feeding is carried out at sunny days at more than 10 DEG C, satiation feeding is carried out at 13:30 to 15:30 at one time, and the feeding rate is controlled within 1%-2%. According to the method, successful overwintering of cultivation of the black sea bream net cage is implemented through management of the cultivation method and feed improvement.

Description

technical field [0001] The invention belongs to seawater fish cultivation technology, in particular to a seawater fish black bream cage overwintering cultivation method. Background technique [0002] black sea bream ( Acanthopagrus schlegelii ) (common scientific name Sparus macrocephalus ), belonging to ray-finned fishes, perciformes, breamidae, and bream genus. Black sea bream is a rare and valuable economic marine fish cultured in the southeast coast of my country and Japan, South Korea, Taiwan, Southeast Asia and other countries and regions. The adult fish has delicious meat and high nutritional value, and is welcomed by consumers at home and abroad. It is one of the most potential targets for intensive marine fish farming in the future. [0003] Black sea bream is a wide-temperature and wide-haline fish, and its survival salinity is 4.09‰~35.0‰, and its growth adapts to a salinity of 10.0‰~30.0‰. The ability to withstand low temperature is stronger than that of red...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K1/14A23K1/10A23K1/16A23K1/165
CPCY02A40/81Y02A40/818Y02P60/87
Inventor 肖金星周宇芳邵庆均泮红文周凡华颖
Owner 响水县八圩海水养殖有限公司
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