Method for improving survival rate of Larimichthys crocea larvae, feed and preparation method and application thereof

A technology for juvenile fish and large yellow croaker, applied in application, animal feed, animal feed, etc., can solve the problems of high cost, low survival rate, application and development of large yellow croaker feed, and nutritional imbalance

Inactive Publication Date: 2018-11-13
ZHUHAI RONGCHUAN FEED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production of large yellow croaker nursery mainly relies on biological bait (such as rotifers, artemia and copepods, etc.), however, biological bait has many unfavorable factors such as high cost, unstable supply, unbalanced nutrition, and easy carrying of pathogenic microorganisms , has become a key factor restricting the expansion and reproduction of large yellow croaker nursery
[0004] At present, my country's research on large yellow croaker feed is relatively backward, and the low survival rate is the bottleneck restricting the application and development of large yellow croaker feed.

Method used

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  • Method for improving survival rate of Larimichthys crocea larvae, feed and preparation method and application thereof
  • Method for improving survival rate of Larimichthys crocea larvae, feed and preparation method and application thereof
  • Method for improving survival rate of Larimichthys crocea larvae, feed and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The feed for improving the survival rate of large yellow croaker juveniles, in parts by weight, has the following components: 38 parts of white fish meal, 18 parts of Antarctic krill meal, 10 parts of low-temperature dried squid meal, 6 parts of fish hydrolyzed protein, 5 parts of yeast powder, 6 parts of pregelatinized starch, 2 parts of binder, 6 parts of refined fish oil, 4 parts of lecithin oil, 2 parts of soybean oil, 0.5 part of garlic powder, 0.5 part of astragalus, 0.5 part of poria cocos, 1.0 part of vitamin mixture, 0.5 part of mineral mixture .

[0032] In the preparation method of the feed of this embodiment, the raw materials of the above-mentioned components are pulverized and passed through an 80-mesh sieve; can be made.

[0033] The protein content of the feed made in this embodiment is 53-54%, the fat content is 15-16%, the starch content is 5-6%, and the lysine content reaches 3.7%, which can fully meet the nutritional needs of large yellow croaker ju...

Embodiment 2

[0035] The feed for improving the survival rate of large yellow croaker juveniles, in parts by weight, has the following components: 45 parts of white fish meal, 10 parts of Antarctic krill meal, 5 parts of low-temperature dried squid meal, 9 parts of fish hydrolyzed protein, 7 parts of yeast powder, 5 parts of pregelatinized starch, 1 part of binder, 7 parts of refined fish oil, 5 parts of lecithin oil, 3 parts of soybean oil, 0.5 part of garlic powder, 0.5 part of astragalus, 0.5 part of poria cocos, 1.0 part of vitamin mixture, 0.5 part of mineral mixture .

[0036] In the preparation method of the feed of this embodiment, the raw materials of the above-mentioned components are pulverized and passed through an 80-mesh sieve; can be made.

[0037] The protein content of the feed made in this embodiment is 53-54%, the fat content is 18-19%, the starch content is 5-6%, and the lysine content reaches 3.7%, which can fully meet the nutritional needs of large yellow croaker juve...

Embodiment 3

[0039] The feed for improving the survival rate of large yellow croaker juveniles, in parts by weight, has the following components: 42 parts of high-quality white fish meal, 15 parts of Antarctic krill meal, 7 parts of low-temperature dried squid meal, 8 parts of fish hydrolyzed protein, and 6 parts of yeast powder , 5 parts of pregelatinized starch, 1 part of binder, 7 parts of refined fish oil, 4 parts of lecithin oil, 2 parts of soybean oil, 0.5 part of garlic powder, 0.5 part of astragalus, 0.5 part of poria cocos, 1.0 part of vitamin mixture, 0.5 part of mineral mixture share.

[0040] In the preparation method of the feed of this embodiment, the raw materials of the above-mentioned components are pulverized and passed through an 80-mesh sieve; can be made.

[0041] The protein content of the feed made in this embodiment is 53-54%, the fat content is 16-17%, the starch content is 5-6%, and the lysine content reaches 3.7%.

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Abstract

The invention relates to an aquatic feed additive, in particular to a method for improving the survival rate of Larimichthys crocea larvae, a feed, a preparation method and application thereof. The method comprises that the starch content in the feed for Larimichthys crocea larvae is reduced and the fat content is increased to make the starch content <=6%and fat content >=15% in the feed; preferably, the starch content is 5-6% and the fat content is 15-16% in the feed for Larimichthys crocea larvae. The feed for Larimichthys crocea larvae provided by the invention has the advantages that, based on the demand of Larimichthys crocea larvae for the energy substance, the nutrition control method is adopted, and the test proves that the feed can enhance the fish body constitution, accelerate the ingestion speed, improve the survival rate, promote growth, and improve seedling raising efficiency of Larimichthys crocea larvae.

Description

technical field [0001] The invention relates to an aquatic feed additive, in particular to a method for improving the survival rate of large yellow croaker juveniles, feed, preparation method and application. Background technique [0002] Large yellow croaker (Larimichthys crocea), belonging to the order Perciformes, the family Sciaenidae, and the genus Larimichthys, is an inshore warm-temperature, cluster migratory fish that inhabits the middle and lower layers of inshore waters. Its meat is delicious and has high economic value, and it is one of the main seawater economic fishes in my country. [0003] In recent years, due to overfishing, the production of wild large yellow croaker has been declining year by year, and artificial breeding of large yellow croaker has attracted more and more attention. With the success of artificial breeding of large yellow croaker, large yellow croaker farming has been promoted on a large scale. At present, the production of large yellow c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/22A23K10/18A23K10/30A23K20/147A23K20/158A23K20/163A23K20/174A23K20/20A23K20/28
CPCA01K61/10A23K10/18A23K10/22A23K10/30A23K20/147A23K20/158A23K20/163A23K20/174A23K20/28A23K20/30A23K50/80Y02A40/81Y02A40/818
Inventor 张凯凯
Owner ZHUHAI RONGCHUAN FEED
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