Outdoor overwintering method for urechis unicinctus

A single-ringed stinging beetle and seedling technology, applied in fish farming, application, animal husbandry and other directions, can solve the problems of high overwintering production cost, long overwintering period, high energy consumption, etc., so as to facilitate germplasm rejuvenation and reduce production Cost and effectiveness of ensuring food safety

Inactive Publication Date: 2020-11-27
辽宁每日农业集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method consumes a lot of energy, the cost of overwintering production is high, the overwintering period is long, and it is contradictory to the indoor production of early sea cucumber seedlings, which has affected the development of the aquaculture industry of single-ringed weed in northern my country.

Method used

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  • Outdoor overwintering method for urechis unicinctus
  • Outdoor overwintering method for urechis unicinctus
  • Outdoor overwintering method for urechis unicinctus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Time: October 4, 2018.

[0044] (1) Seedling selection: select young weltweeds with a body length of 1.3-2.4cm and a body weight of ≧0.25g / head.

[0045] (2) Pretreatment of the overwintering pond: the specification of the overwintering pond is 7.2 mu, inject fresh seawater with a biomass of 10mg / L before overwintering (the organisms in the fresh seawater are green algae and diatoms), and pass through an 80-mesh sieve before the fresh seawater is injected Then inject urea solution (make the mass concentration of urea in the overwintering pond be 0.3g / L, that is, the mass concentration of N is 0.6g / L, and pass through 80 mesh sieves before injection) to cultivate phytoplankton, so that the biomass of phytoplankton reaches 35mg / L, and use trichlorfon to kill macrozooplankton, and apply it twice: after the first application, the mass concentration of trichlorfon in the overwintering pond is 0.02g / L, and after the second application, the concentration of trichlorfon in the ...

Embodiment 2

[0051] Time: October 4, 2018.

[0052] (1) Seed selection: select young wettles with a body weight of 0.75 g / head.

[0053] (2) Put the above-mentioned single-ringed weedlings into a plastic basket with a length of 60 cm, a width of 35 cm, and a height of 45 cm. The inside of the basket is covered with a 40-mesh plastic net, and the density is 20 heads / basket. Plastic basket covered with plastic mesh such as image 3 shown.

[0054] (3) the plastic basket of step (2) and the single-ring thorny larvae are put into the large pit formed by water injection at the water inlet of the culture pond ( Figure 4 ), without feeding, and keep the water level at 1.1-1.8m.

Embodiment 3

[0056] Time: October 4, 2018.

[0057] (1) Seedling selection: select young weltweeds with a body length of 1.3-2.4cm and a body weight of ≧0.25g / head.

[0058] (2) Put the single-ringed weedlings into a temporary raising box with a length of 40cm, a width of 30cm, and a height of 15cm. The density is 50 heads / box. Fine sand is housed in the temporary raising box, and then the temporary raising box is put into the room Temporarily raise in the pond for 10 days, change the water by 10-20% every 1-2 days, and use air stones to inflate the culture to keep the dissolved oxygen content at 4-6mg / L. Feeds were fed during the temporary raising period, and the specific mass percentages were: 38.5% of bottom mud, 10% of net mud containing diatoms, 3% of fish meal, 5% of expanded soybean meal, 1% of spirulina, and 40% of sargassum (large leaf vegetable). %, multidimensional 1%, compound mineral salt 0.5%, yeast powder 0.5%, probiotic powder 0.5%, and the water temperature is maintained ...

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Abstract

The invention discloses an outdoor overwintering method for urechis unicinctus and belongs to the technical field of agricultural aquatic products. The method comprises the following steps: (1) fry selection: selecting young urechis unicinctus of which the body length is 1.3-2.4 cm and the body mass is greater than or equal to 0.25 g / head; (2) overwintering pond pretreatment: injecting water before overwintering, properly fertilizing water to culture phytoplankton, and killing macrozooplankton; (3) putting the young urechis unicinctus into an indoor pool for temporary culture for 10-15 days; and (4) putting the young urechis unicinctus placed in the temporary rearing box after temporary rearing into an outdoor overwintering pond for overwintering rearing. Compared with an existing indoor overwintering technology, the method has the advantages that manpower, energy and indoor equipment cost are saved, and overwintering production cost is reduced; the natural breed conservation effect ofnatural selection is achieved, and urechis unicinctus germplasm rejuvenation is facilitated; through temporary culture, a material and energy basis is provided for outdoor overwintering and improvement of the overwintering survival rate, and the outdoor overwintering survival rate of urechis unicinctus can reach about 70.5%.

Description

technical field [0001] The invention relates to the technical field of agricultural and aquatic products, and more specifically relates to an outdoor overwintering method for the single-ringed welt. Background technique [0002] Commonly known as sea intestines, Echinococcus monoringensis belongs to the phylum Cicteridae, class Cicteridae, order Cicteraceae, family Cicadaceae, and genus Cicadae. biology. The body wall muscle of C. unicyclicus is rich in type I collagen and umami amino acids; there are many bioactive peptides such as tachykinin and anticoagulant peptide in the body; fibers with high thrombolytic activity can be isolated from the body cavity fluid. Lysozyme; the content of highly unsaturated fatty acids such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in viscera is also very high. The single-ringed sea cucumber is full of treasures and has high food value, medicinal value and research value, and is called "naked sea cucumber". In addition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/40
CPCA01K61/40
Inventor 张玉满张绍臣张杨王吉桥许丽孙俭姚恩长丛园园董德义赵勇符锦光杨东喜
Owner 辽宁每日农业集团有限公司
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