Nutritional method for regulating muscle fatty acid composition of large yellow croaker under high-fat feeding

A large yellow croaker and fatty acid technology, which is applied in animal feed, additional food elements, animal feed, etc., can solve the problems of fish body lipid metabolism disorder and reduce the nutritional value of fish, so as to improve the richness of flora and relieve intestinal bacteria. The effect of group disorder and changing the structure of the flora

Pending Publication Date: 2021-12-21
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, long-term use of high-fat feed will lead to disordered lipid metabolism in fish and reduce the nutritional value of fish.

Method used

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  • Nutritional method for regulating muscle fatty acid composition of large yellow croaker under high-fat feeding
  • Nutritional method for regulating muscle fatty acid composition of large yellow croaker under high-fat feeding
  • Nutritional method for regulating muscle fatty acid composition of large yellow croaker under high-fat feeding

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, use this method to carry out feed manufacturing and breeding management

[0022] 1. Experimental design and experimental feed formula

[0023] The large yellow croaker breeding high-fat feed group (18% fat level) used in the laboratory in previous years was used as the negative control group, and 0.5% (ie 5 mg / kg) phytosterol was added to the negative control group as the addition group. In addition, the appropriate feed group (12% fat level) was used as a positive control group. The feed formulation is shown in Table 1.

[0024] Table 1 Formula and crude ingredients (% dry ingredients) of experimental feed

[0025]

[0026] 1 White fish meal (74% crude protein, 7.84% crude fat); high-grade krill meal (64.86% crude protein, 8% crude fat); dehulled soybean meal (54.08% crude protein, 0.35% crude fat); high-gluten flour (21.2 % crude protein, 0.34% crude fat).

[0027] 2 Multidimensional premix (mg / kg diet) (vitamin A acetate, 32; vitamin D3, 5; α-t...

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Abstract

The invention relates to a nutriology method for regulating muscle fatty acid composition of large yellow croaker under high-fat feeding, belongs to the field of aquatic nutrition feeds, and is characterized in that phytosterol with the content of 0.5% is added into a large yellow croaker high-fat feed. According to the method disclosed by the invention, the content proportion of SFA in the muscle fatty acid composition can be obviously reduced, the content proportion of n-6PUFA and n-3PUFA is improved to a certain extent, and the nutritional value of the fish meat is improved.

Description

technical field [0001] The invention belongs to the field of nutritional feed for aquatic animals, and in particular relates to a nutritional method for regulating fatty acid composition of large yellow croaker (Larimichthyscrocea) muscle. Background technique [0002] Large yellow croaker belongs to the order Perciformes of the class Osteophytes, the family Scrotoaceae, and the genus Yellow Croaker. It is mainly distributed in the southeastern coastal waters of my country. Its meat is delicious and has certain medicinal value. It is a unique seawater economic fish in my country. According to the 2021 China Fishery Statistical Yearbook, the aquaculture output of large yellow croaker exceeds 250,000 tons, and it is the seawater economic fish with the largest aquaculture output in my country. [0003] In recent years, high-fat feed has been widely used in large yellow croaker feed, because many studies have shown that high-fat feed can promote fish growth, improve protein util...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/30A23K20/168
CPCA23K50/80A23K10/30A23K20/168
Inventor 艾庆辉何昱良王震唐宇航许宁麦康森
Owner OCEAN UNIV OF CHINA
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