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Brachymystax lenok parent fish nutrient enrichment dry-fresh composite feed and preparation method thereof

A nutrition-enhanced and compound feed technology, applied in animal feed, animal feed, applications, etc., can solve problems such as low hatching rate and fry survival rate, low reproductive performance of broodstock, poor quality of fertilized eggs, etc., to improve fertilization rate and hatching efficiency, improve reproductive performance, and prevent egg overripe or egg membrane burst

Inactive Publication Date: 2014-01-01
INNER MONGOLIA UNIV FOR THE NATITIES +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, feeding only buoyant compound feeds leads to low reproductive performance of broodstock, poor quality of fertilized eggs, extremely low hatching rate and fry survival rate, or unsuccessful breeding. Material Guarantee for the Breeding of Lepidus salmon broodstock under Artificial Breeding Conditions

Method used

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  • Brachymystax lenok parent fish nutrient enrichment dry-fresh composite feed and preparation method thereof
  • Brachymystax lenok parent fish nutrient enrichment dry-fresh composite feed and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Table 1 Composition and mass percentage of control group and feed 1, 2, 3 groups

[0023]

[0024] Note: The nutrient composition of the extruded feed of the control group is 54.8% of crude protein, 12.6% of crude fat, 10.4% of ash, and 8.2% of moisture; the preparation method of feed 1, 2, and 3 in the embodiment is to mix VE and soybean lecithin into fish oil or Stir in sesame oil evenly, mix VC and dextrin evenly, then chop or mince fresh miscellaneous fish, shrimp, clamworm, and water earthworm in different proportions of each example, and then mix the first three with extruded feed evenly, Freeze, and prepare mixed feed into small pieces of 1.0cm×1.0cm×1.0cm.

[0025] Using the embodiment feed 1 (table 1) to feed the lentil salmon 60d for nutritional fortification, compared with the extruded feed (control group) (table 2), broodstock egg production, egg diameter, egg membrane rupture rate, fertilization rate , hatching rate and larvae deformity rate have all ac...

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Abstract

The invention relates to a brachymystax lenok parent fish nutrient enrichment dry-fresh composite feed and a preparation method thereof. The brachymystax lenok parent fish nutrient enrichment dry-fresh composite feed comprises the following components in percentage by weight: 46% of expanded feeds, 51% of fresh and alive baits, 2.1% of micronutrients and the balance being adhesives (0.9%). According to the feed and the method, the dry-fresh composite feed prepared by adding the fresh and alive baits to the expanded feeds is still a floatable feed, so that the requirement for life habits of a brachymystax lenok parent fish on that the brachymystax lenok parent fish only ingests the floatable feed is met; the contents of linolenic acid, linoleic acid, EPA (Eicosapentaenoic Acid) and DHA (Docosahexenoic Acid) which are contained in the dry-fresh composite feed can be increased by adding linseed oil and fish oil to the dry-fresh composite feed, so that the requirement for nutrition of the gonad development of the brachymystax lenok parent fish, the smoothness of spawning is facilitated, and the recovery of the postpartum parent fish is facilitated.

Description

technical field [0001] The invention belongs to the field of feed, and in particular relates to a nutritionally enhanced dry-fresh compound feed for broodstock salmon and a preparation method thereof. Background technique [0002] Lepidoptera is a rare cold-water economic fish. Its meat is delicious, tender and rich in nutrition. It has always been regarded as a treasure on the table, and it is mainly distributed in the Northeast and Northwest of China. In recent decades, with the development of natural resources and the intensification of human production activities, the resources of wild lemur have been declining sharply and are on the verge of extinction. It has been listed as a second-class protected aquatic wild animal in the country. In recent years, my country has carried out artificial hatching and breeding of fertilized eggs of wild salmon. With the expansion of the scale of artificial breeding of lentil salmon in my country year by year, the fertilized eggs of wil...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/10A23K1/16
Inventor 牛化欣常杰于建华
Owner INNER MONGOLIA UNIV FOR THE NATITIES
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