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Composite feed additive capable of promoting juvenile large yellow croaker intestinal tract development and enzyme activity

A feed additive and compound feed technology, applied in the direction of animal feed, animal feed, additional food elements, etc., can solve the problems of low digestion and absorption rate, death of larvae and juveniles, etc. effect of benefit

Inactive Publication Date: 2019-04-16
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the compound feed is used, the larvae and juveniles will die due to low digestion and absorption rate.

Method used

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  • Composite feed additive capable of promoting juvenile large yellow croaker intestinal tract development and enzyme activity
  • Composite feed additive capable of promoting juvenile large yellow croaker intestinal tract development and enzyme activity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation of embodiment 1 large yellow croaker juvenile feed additive

[0018] The compound feed additive for large yellow croaker juveniles of the present invention is composed of tributyrin, astaxanthin and yeast extract powder, and its mass percentage composition is as follows: 1%~15% tributyrin, 2%~6 % Astaxanthin and 80%-95% Yeast Dip Powder.

[0019] Feed additive of the present invention, its a kind of preparation method is as follows:

[0020] The compound feed additive of configuration, takes by weighing tributyrin, astaxanthin and yeast extract powder, pulverizes, passes through 200 mesh sieves, fully mixes in the mixer, is the juvenile large yellow croaker of the present invention. Compound feed additive.

[0021] Compound feed additive of the present invention, the specific proportioning ratio of its three components is the following table 1.

[0022] Table 1: The ratio of components in compound feed additives

[0023]

Embodiment 2

[0025] The compound feed additive and the basic feed components of juvenile large yellow croaker are mixed and stirred evenly, and then pelletized. The temperature of mixing and stirring is controlled at 20-30° C., the time of mixing and stirring is controlled at 15-30 minutes; the speed of mixing and stirring is controlled at 200-300 rpm. In this way, a homogeneous large yellow croaker juvenile feed can be prepared, so that the compound feed additive and other feed ingredients can be better integrated with each other.

[0026] The large yellow croaker juvenile basal feed described therein has a specific composition as follows: 20-40 parts of white fish meal, 8-15 parts of krill meal, 6-12 parts of squid meal, 15-25 parts of casein, 5 parts of alpha starch -15 parts, 1-3 parts of sodium alginate, 0.5-1 part of multivitamin, 0.5-1 part of compound mineral, 0.1-0.5 part of ascorbic acid, 1-4 parts of food attractant, 0.1-0.5 part of choline chloride, 5-10 parts of fish oil, 3-8...

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Abstract

The invention provides a composite feed additive capable of improving the juvenile large yellow croaker digestive enzyme activity and promoting intestinal tract development. The composite feed additive is prepared from, by mass, 1-15% of tributyrin, 2-6% of astaxanthin and 80-95% of yeast extract powder. The composite feed additive is applied as a juvenile large yellow croaker feed additive. The functional additive can remarkably improve the juvenile large yellow croaker digestive absorption capability, the juvenile fish survival rate is increased, and a favorable foundation is laid for improving the large yellow croaker fry quality. Meanwhile, the additive is of a great significance in perfecting the juvenile large yellow croaker cooperative feed, accordingly, the feed additive is worthyof being applied and popularized, and larger economic benefits are created.

Description

technical field [0001] The invention belongs to the technical field of feed additives, and in particular relates to a compound feed additive for promoting intestinal development and enzyme activity of large yellow croaker juveniles. Background technique [0002] Large yellow croaker (Larimichthys crocea), bony fish class, perciformes (Perciforme), stone head fish family (Sciaeni-dae), yellow croaker genus, is a high-quality economically farmed fish in the East my country Sea and Taiwan Strait. In the 1980s, Chinese scientists successfully bred large yellow croaker fry. Since then, the large yellow croaker farming industry has developed rapidly and has achieved significant economic benefits so far. According to the 2017 China Fishery Yearbook statistics, the annual output of large yellow croaker has reached 177,600 tons, ranking first in domestic marine fish farming output. [0003] However, while the mariculture industry is developing rapidly, it should also be noted that s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/18A23K10/22A23K20/105A23K20/147A23K20/158A23K20/163A23K20/174A23K20/20A23K50/80
CPCA23K10/18A23K10/22A23K20/105A23K20/147A23K20/158A23K20/163A23K20/174A23K20/20A23K50/80
Inventor 艾庆辉刘勇涛苗又青许宁丁涛麦康森
Owner OCEAN UNIV OF CHINA
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