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Feed capable of improving anti-stress capability of large yellow croakers

A large yellow croaker and feed technology, applied in animal feed, animal feed, application, etc., can solve the problems of acute death of large yellow croaker, nutritional changes of large yellow croaker, etc.

Inactive Publication Date: 2015-05-27
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the trawling stress is too large, it will cause acute death of large yellow croaker, especially in high temperature season, it will cause double stress superimposition, resulting in changes in the nutrition of large yellow croaker

Method used

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  • Feed capable of improving anti-stress capability of large yellow croakers
  • Feed capable of improving anti-stress capability of large yellow croakers
  • Feed capable of improving anti-stress capability of large yellow croakers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: Application of large yellow croaker anti-stress feed formula

[0016] The main raw materials are fish meal, soybean meal, wheat flour, fish oil, soybean lecithin, large yellow croaker mineral premix, large yellow croaker vitamin premix (without vitamin C), choline chloride, calcium dihydrogen phosphate, and betaine. Two kinds of compound feeds for large yellow croaker (see Table 1 for details): 1# feed is the treatment group that adds the amount of vitamin C phosphate (283 mg / kg) just enough to meet the growth needs of large yellow croaker; 2# feed is added to meet the growth needs 4 times The treatment group of the amount of vitamins.

[0017] Table 1: Experimental Feed Formula

[0018]

[0019] Among them, mineral premix (mg / kg): magnesium sulfate heptahydrate (MgSO 4 .7H 2 O), 182.57; copper sulfate pentahydrate (CuSO 4 .5H 2 O), 0.98; ferrous sulfate heptahydrate (FeSO 4 .7H 2 O), 11.95; zinc sulfate heptahydrate (ZnSO 4 .7H 2 O), 7.59; man...

Embodiment 2

[0040] Other operations are the same as in Example 1.

[0041] Determination of total protein content, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase activity in the serum of large yellow croaker before and after two kinds of stress experiments in the two treatment groups, so as to reflect the effect of high content of vitamin C in the feed on fish liver. side effects. The total protein content, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase activity and other indicators were determined by kits produced by Nanjing Jiancheng Bioengineering Technology Research Institute.

[0042] The experimental results are represented by mean ± standard deviation (mean ± S.D.). There were significant differences (P<0.05) in Tukey's multiple comparisons among means with different superscripts in the same data row.

[0043] Table 4: Effects of excessive vitamin C supplementation on liver enzyme activity of large yellow croaker

[0044] ...

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Abstract

The invention aims at providing a feed capable of improving anti-stress capability of large yellow croakers to overcome the defects of the prior art. The feed of the large yellow croakers comprises a vitamin C additive, and the amount of vitamin C provided after the vitamin C additive is metabolized in the large yellow croakers exceeds the amount of vitamin C demanded by growth of the large yellow croakers. The addition amount of the vitamin C in the feed of the large yellow croakers is 3.5 to 5.0 times larger than the amount of vitamin C demanded by growth of the large yellow croakers, and the anti-heat stress capability and the anti-trawl stress capability of the large yellow croakers can be improved by excessively adding the vitamin C.

Description

technical field [0001] The invention belongs to the technical field of aquatic feed preparation, and in particular relates to a feed for improving the anti-stress ability of large yellow croaker. Background technique [0002] In the process of fish farming, it is easy to be affected by external environmental stress, and technicians refer to abnormal factors that deviate from the normal living range of fish as stress sources. According to the nature of the stress source, the stress response of fish can be divided into four types: physical stress, chemical stress, biological stress and management stress. Rapid changes in temperature, or high temperature, low temperature, too strong light, noise caused by driving ships, etc. are all physical stressors; chemical stressors are heavy metal and organic pollution, low dissolved oxygen, changes in salinity and PH value etc.; overcrowding stress caused by high breeding density, and the invasion of diseases and insect pests that are l...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16
Inventor 张文兵韦海明潘孝毅徐玮麦康森郑钊智
Owner OCEAN UNIV OF CHINA
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