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Method for breeding bluefin tuna by nano slow-release carrier feeds

A nano-sustained-release carrier, bluefin tuna technology, applied in fish farming, animal feed, animal feed, etc., can solve the problems of lack of effective control of fish diseases, no harmful bacteria, insect killing, etc.

Inactive Publication Date: 2014-01-01
SUZHOU CITY XIANGCHENG DISTRICT SHENGHU SPECIAL CULTIVATION SPECIALIZED COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing single-type fish fertilizers and compound-type fish fertilizers also have a common shortcoming, that is, they cannot kill harmful bacteria and insects, so they lack the effect of effectively preventing and controlling fish diseases
The microbial compound fish fertilizer can increase the content of beneficial bacteria in fish ponds and effectively reduce the occurrence of fish diseases. At present, there is no report on the special use of this compound microbial fish fertilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for cultivating bluefin tuna using nanometer slow-release carrier feed, comprising the following steps:

[0018](1) Breeding environment: the cultivation pond is a circular or square cement pond with an area of ​​12~20m2 and a depth of 0.7~1.0 m; the middle cultivation pond is a round or square cement pond with an area of ​​30~50 m2 and a depth of 0. 8~ 1. 0 m, good water circulation and sewage discharge function are required; the water quality is transparent, clear, free of harmful heavy metal ions, sulfide does not exceed 0.02mg / L, the total number of E. coli is less than 5000 / L, and the salinity is at 20 above; light: 500lx~1500lx, uniform, soft, not dazzling; water temperature: 15℃~18℃; salinity: suitable salinity is 25~30; pH maintained between 7.6~8.2; dissolved oxygen: more than 6 mg / L; The net cage is made of polyethylene mesh as the box body material, the net cage is double-layered, the size is 6.0m × 10.0m × 6m, the mesh of the inner layer is 3.5cm,...

Embodiment 2

[0028] The preparation method is the same as in Example 1.

[0029] In the bluefin tuna juvenile stage of growth, fish out, divide and raise in the middle of five ponds, every pond 300, put in the microorganism bluefin tuna of the embodiment of the present invention 1 respectively in four ponds according to the input amount of every mu 200kg fat and common bluefin tuna fat (control 1, produced by Beijing Century Ames Biotechnology Co., Ltd.), another tank does not put bluefin tuna fat (control 2), but puts the same amount of common fish food, and the rest The amount of feed is the same, and the culture environment is the same. After cultivating for 2-4 months in Example 1, comparing its output and the growth status of bluefin tuna, adding the compound microbial fertilizer of the present invention can promote the rapid growth of bluefin tuna. EPA content Increase, bluefin tuna disease reduction, decrease in mortality, but also increase the beneficial microorganisms in the water...

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PUM

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Abstract

The invention discloses a method for breeding bluefin tuna by nano slow-release carrier feeds. The method comprises the following steps: putting adult bluefin tuna into a pond with fresh water, the depth of 2.0-2.5m and the pH value of 7.0-8.5 in the morning from the middle of March to the middle of April under the condition that the water temperature is 15-20 DEG C, and breeding 2250-3000 silver carp fries being 10-12cm per hm<2> and 375 spotted silver carp fries per hm<2> in the pond at the same time, wherein a net box is made of polyethylene net pieces. By adding a compound microorganism fertilizer, the bluefin tuna can be promoted to grow quickly, the EPA (eicosapentaenoic acid) content can be increased, the diseases of the bluefin tuna are reduced, the fatality rate is reduced, beneficial microorganisms in a water body are added, and the final quality is improved.

Description

technical field [0001] The invention relates to an aquaculture method, in particular to a method for cultivating bluefin tuna by adopting nano slow-release carrier feed. Background technique [0002] Bluefin Tuna is the largest species of tuna. The body is short and strong, with a tapered and slender body, and the caudal fin is crossed; the color from the bottom to the side of the body is bright, the upper body is dark blue, the fins are dark dark, the small fins are yellowish, and the caudal peduncle has a raised crest It is black. The whole body is covered with scales, the mouth is quite large, the eyes are not big, the pectoral fins are short, and the end does not reach the center of the first dorsal fin, which is the biggest feature of this species. The body length is generally 1-3 meters, and the larger ones are more than 3 meters long and weigh more than 700 kilograms. [0003] Bluefin tuna is often in groups of 50-60, and there are also schools of more than 1,000. ...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/10A23K1/14A23K1/18C04B30/00C04B38/08C05G3/00
CPCY02A40/81
Inventor 王建良
Owner SUZHOU CITY XIANGCHENG DISTRICT SHENGHU SPECIAL CULTIVATION SPECIALIZED COOP
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