Trout roe production method

A production method and trout technology are applied in the field of trout production and trout roe production to achieve the effects of high nutritional value, protection of trout resources and maintenance of ecological balance

Inactive Publication Date: 2013-06-05
GANSU FISHERY TECH PROMOTION GENERAL STATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are very few research reports on trout roe production technology at home and abroad. Only Liu Xuexun and Wang Xiulin from Beijing Institute of Fishery Science made a simple preliminary report on "Feminization of Rainbow Trout and Preliminary Research on Fish Roe Nutrition

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] From December 2007 to March 2008, Linze County Qilian Snow Cold Water Fish Breeding Center, Yongchang County Sanxin Fishery, a kind of production method of trout roe according to the present invention, its specific implementation method is as follows:

[0016] a. Add 50ppm astaxanthin to the feed three months before egg collection, then stop feeding the female trout that will produce roe for three days, fish out the female trout that can gently extrude eggs, and select 1000 rainbow trout, golden trout, etc. trout broodstock squeezed eggs;

[0017] b. Trout live egg extraction technique: one person pinches the tail handle of the fish, the other person grabs the head of the fish with both hands, and wipes off the dripping water from the fish body, then aligns the reproductive hole of the trout with the egg collection container, and repeats from back to front Squeeze gently several times to ensure that it is squeezed out as much as possible, and 2 million trout eggs are ob...

Embodiment 2

[0021] In September 2008, 40-60ppm astaxanthin was added to the feed fed to trout broodstock, and fed until before egg extrusion. From December 2008 to March 2009, we continued to extract eggs from 2,000 rainbow trout and golden trout broodstock at Linze County Qilian Snow Cold Water Fish Breeding Center and Yongchang County Sanxin Fishery, and obtained 4 million fish eggs. Wash with water, pickle and drain to produce 200kg of trout roe.

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PUM

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Abstract

The invention relates to a trout production technology, belongs to the field of fish breeding, and particularly relates to a trout roe production method. The method is characterized by comprising: after bred trout achieves sexual maturity, selecting trout parent fishes at a breeding season, wherein ovary of the selected trout parent fish develops to a V stage; adopting an extrusion method to extrude trout roes; carrying out immersion washing on the trout roes at a temperature of below 4 DEG C with an iodine-free salt solution with a concentration of 0.5-5%; carrying out pickling with an iodine-free salt solution with a proper concentration; draining water with gauze; and carrying out ultraviolet disinfection and packaging. The production method has the following beneficial effects that: the produced trout roe achieves a pollution-free food standard, and has characteristics of natural shape and high nutrition value; the operation method is simple and convenient, and complex equipment is not required; and the trout roe is produced so as to extend a trout industry chain, improve breeding benefits, avoid disadvantages of trout roe production through wild trout fishing, protect trout resources and maintain ecological balance.

Description

technical field [0001] The invention relates to a trout production technology, which belongs to the field of fish farming, in particular to a production method of trout roe. Background technique [0002] Caviar roe has high nutritional value and contains nutrients needed by the human body such as ovalbumin, globulin, ovomucoid and roe scale protein, and is delicious. Trout has few bone spurs, delicious meat, and high nutritional value. Trout roe has higher nutritional value. Its nutritional ingredients include: water 59.96%, protein 31.74%, fat 4.34%, ash 3.06%, and rich in vitamins and Minerals also contain essential amino acids that are easily digested and absorbed by the body. Driven by interests, people are fishing for mature trout that are about to spawn in natural waters to produce trout roe, and a large number of trout that have not yet spawned have been killed, resulting in a serious reduction in trout resources and serious damage to trout natural resources. threat...

Claims

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Application Information

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IPC IPC(8): A23L1/328A22C25/00A01K61/00A23L17/30
CPCY02A40/81
Inventor 邵东宏李勤慎刘山东岳永河
Owner GANSU FISHERY TECH PROMOTION GENERAL STATION
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