Nano-selenium feed capable of reducing excessive accumulation of abdominal fat of grass carp

Abstract

The invention discloses a nano-selenium feed capable of reducing excessive accumulation of abdominal fat of a grass carp. The feed comprises the following components of, in percentage by mass, 12 % offish meal, 24 % of soybean meal, 10 % of rapeseed cake, 10 % of cottonseed meal, 22.2 % of wheat flour, 5 % of DDGS, 7 % of rice bran, 4.8 % of soybean oil, 1 % of vitamin premix, 1 % of no-seleniummineral element premix, 1 % of bentonite, 2 % of monocalcium phosphate and 0.00003 %-0.00012 % of nano-selenium. The nano-selenium feed can reduce the excessive accumulation of the abdominal fat of the grass carp, reduce the blood fat content of the grass carp, relieve the metabolic injury of the grass carp, improve the stress resistance and survival rate of the grass carp, improve the muscle protein content of the grass carp, improve the yield and quality of the grass carp, and improve the culture economic benefit.

Description

technical field [0001] The invention belongs to the field of aquatic feed, and in particular relates to a nano-selenium feed for reducing excessive accumulation of abdominal fat of grass carp. Background technique [0002] Grass carp is the most productive freshwater economic fish in my country. Excessive accumulation of lipids is a bottleneck problem faced by grass carp farming, which seriously affects the health and quality of grass carp. In the breeding process, the method of giving too much energy feed in a short period of time is often used to improve the production performance of grass carp. However, studies have found that long-term feeding of high-fat feed can lead to fat accumulation in fish, especially in the abdominal cavity and liver. The excessive accumulation of lipids will lead to an increase in free fatty acids, causing oxidative stress in the body, causing metabolic damage in the body, resulting in a decrease in the stress resistance of the fish, and even ...

AI Technical Summary

Problems solved by technology

At present, the substances used in aquaculture to reduce the accumulation of fish lipids are mainly choline, carnitine and betaine. The application of nano-selenium in aquaculture is mainly to use its antioxidant effect to improve the antioxidant capacity of farmed fish. ability, but there is no report on reducing the abdominal fat accumulation of grass carp by adding nano-selenium to the feed

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