A coloring synergist that promotes the absorption of carotenoids by fish

Abstract

The invention discloses a coloring synergist for promoting the absorption of carotenoids by fish, and the active ingredients of the coloring synergist are thetacyanin and carotenoid colorants. The coloring synergist of the present invention can significantly improve the absorption, utilization and conversion efficiency of carotenoid colorants by fish, enhance the coloring effect of fish, and speed up the coloring speed, and has the advantages of high technology integration, plant source and high conversion efficiency , good technical advantages in coloring and synergizing, and can also enhance the immunity of fish and balance nutrition, ensuring the health of fish; while satisfying the coloring and synergizing of fish, it also meets the nutritional needs of fish, and has a high Practical value.

Description

technical field [0001] The invention relates to a coloring synergist for ornamental fish, in particular to a coloring synergist for promoting the absorption of carotenoids by fish. Background technique [0002] The market value of many fish species is determined primarily by external form and body colour. Therefore, in the breeding process, carotenoid colorants must be added to the feed to increase or maintain its body color. However, the ability of fish to digest and utilize carotenoids is low, and most of the colorants cannot be absorbed by the fish body, and are excreted with feces, causing economic waste and environmental pollution, and carotenoids such as astaxanthin The price of astaxanthin has always been very expensive, which also leads to the high price of coloring feed. Therefore, how to improve the digestion and utilization rate of astaxanthin and save the amount of astaxanthin has become the key to solving this problem. [0003] There are many factors that affe...

AI Technical Summary

Problems solved by technology

However, the antioxidant capacity of astaxanthin is 100 times that of vitamin E. In the presence of carotenoids, the space for vitamin E to exert its antioxidant capacity is limited

Moreover, the price of vitamin E itself is relatively expensive, and the cost of feed will increase. The value of vitamin E also has its additive limit, and if it is too high, it will also have a toxic effect on the fish.

In addition, some studies have used the androgen methyl testosterone to promote pigmentation, but this is an additive banned by the state

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