Compound feed for crabs from larva stage to young crab stage, preparation method of compound feed

A technology for compound feed and crab deduction, which is applied in the field of river crab feed processing, can solve problems such as difficult to master and complicated operation, and achieve the effects of enhancing immunity, good palatability and reducing cost.

Inactive Publication Date: 2018-06-01
镇江华优生态农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can effectively reduce the premature puberty of crabs, the operation is complicated and different feeds need to be prepared and fed in stages, so it is difficult to master

Method used

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  • Compound feed for crabs from larva stage to young crab stage, preparation method of compound feed

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A method for preparing compound feed from larvae to crab crab stage, comprising the following steps:

[0027] (1) 3 parts by weight of soybean meal, 1 part of rapeseed meal, 3 parts of bran, and 3 parts of fish meal are made into basic feed, soaked in water for 4 hours, absorb water until saturated, and remove;

[0028] (2) 1 part of lactic acid bacteria and 4 parts of EM bacteria are mixed into fermentation bacteria by weight, and the weight ratio of white sugar or brown sugar to fermentation bacteria is 3:1, and dissolved in water;

[0029] (3) Ferment the fermented liquid containing 3 parts of fermented bacteria and 100 parts of soaked basal feed for 10 days at a fermentation temperature of 25° C.;

[0030] (4) After fermentation, add 0.3 parts of vitamin C, 0.01 parts of trace elements, 0.3 parts of antimicrobial peptides, and 0.05 parts of astaxanthin, mix and dry; trace elements include 1 part of potassium iodide and zinc gluconate in parts by weight 8 parts, 3 p...

Embodiment 2

[0033] A method for preparing compound feed from larvae to crab crab stage, comprising the following steps:

[0034] (1) 4 parts by weight of soybean meal, 2 parts of rapeseed meal, 5 parts of bran, and 2 parts of fish meal are made into basic feed, soaked in water for 6 hours, absorb water to saturation, and remove;

[0035] (2) 2 parts by weight of lactic acid bacteria and 3 parts of EM bacteria are mixed into fermentation bacteria, mixed at a weight ratio of 4:1 between white sugar or brown sugar and fermentation bacteria, and dissolved in water;

[0036] (3) Mix and ferment the fermented liquid containing 4 parts of fermented bacteria and 100 parts of soaked basal feed at a fermentation temperature of 30° C. for 3 days;

[0037] (4) After fermentation, 0.4 parts of vitamin C, 0.02 parts of trace elements, 0.4 parts of antimicrobial peptides, and 0.1 parts of astaxanthin were added, mixed and dried; the trace elements included 2 parts of potassium iodide and 5 parts of zinc...

Embodiment 3

[0040] A method for preparing compound feed from larvae to crab crab stage, comprising the following steps:

[0041] (1) In parts by weight, 3 parts of soybean meal, 3 parts of rapeseed meal, 8 parts of bran, and 1 part of fish meal are made into basic feed, soaked in water for 8 hours, absorb water until saturated, and remove;

[0042] (2) 1 part of lactic acid bacteria and 3 parts of EM bacteria are mixed into fermentation bacteria by weight, and the weight ratio of white sugar or brown sugar to fermentation bacteria is 5:1, and dissolved in water;

[0043] (3) Ferment the fermented liquid containing 5 parts of fermented bacteria and 100 parts of soaked basal feed for 6 days at a fermentation temperature of 28° C.;

[0044] (4) After fermentation, add 0.5 part of vitamin C, 0.02 part of trace element, 0.5 part of antimicrobial peptide, and 0.08 part of astaxanthin, mix and dry; trace elements include 1.5 parts of potassium iodide and 7 parts of zinc gluconate 1 part, 5 part...

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PUM

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Abstract

The invention discloses a compound feed for crabs from a larva stage to a young crab stage. The compound feed comprises the following components in parts by weight: 100 parts of a basal feed, 3-5 parts of zymogen, 0.3-0.5 part of vitamin C, 0.01-0.02 parts of trace elements, 0.3-0.5 part of antimicrobial peptides and 0.05-0.1 part of astaxanthin, wherein the basal feed comprises the following components in parts by weight of 3-4 parts of soybean meal, 1-3 parts of rapeseed meal, 3-8 parts of bran and 1-3 parts of fish meal. The compound feed disclosed by the invention has the advantages that only one kind of feed is used in the breeding course of young crabs, so that operation is convenient; the feed is fermented, the neoteny of the young crabs can be effectively controlled, and the proportion of the neoteny young crabs is reduced to 3% or below; the antimicrobial peptides and the astaxanthin are added, so that the disease resistance of the young crabs is improved, the immunity is enhanced, and antibiotics are avoided; the proportion of the protein to the fat to the carbohydrate in the feed is balanced, and the compound feed is suitable for meeting of growth requirements of the young crabs; and the feed is good in palatability and easy to ingest, the price of the basal feed is low, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of river crab feed processing, and in particular relates to a compound feed from larvae to the crab stage and a preparation method thereof. Background technique [0002] River crabs are generally cultured for two years. In the first year, there are megalopa cultured to crabs, and in the second year, from crabs to adult crabs. After the megalopa molts and grows, it grows into a crab shape, and the larvae of the first 1 to 5 moults are called Ⅰ-Ⅴ stage larvae in turn. Because they are small and only about the size of soybeans, they are called bean crabs; The young crabs molt several times until they reach the size of a button in the autumn of that year, and then become button crabs, also known as first-year crab species and crab seedlings. At present, the main problem affecting the quality of crabs is the precocious puberty of crabs. If the precocious crabs are cultivated as seed crabs in the second year, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K40/10A23K10/12A23K20/147
CPCA23K10/12A23K20/147A23K40/10A23K50/80Y02A40/818
Inventor 邹军朱志飞张枭袁辉
Owner 镇江华优生态农业科技有限公司
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