Feed addictive for promoting upgrowth of Litopenaeus vannamei under low-salt environment

Abstract

The invention relates to a feed additive capable of promoting the growth of Litopenaeus vannamei in low-salt environment, which comprises ingredients by weight percentages: 30 to 50 percent of KCl in a feed grade, 20 to 30 percent of MgSO4 in a feed grade, 10 to 20 percent of vitamin C-2-poly phosphate, 5 to 10 percent of vitamin E and 5 to 10 percent of selenium methionine, wherein the KCl in the feed grade contains 50 percent of K, and the MgSO4 in the feed grade contains 15 percent of Mg. The invention has the advantages that the weight rate of the Litopenaeus vannamei in the low-salt environment is obviously improved, and the growth of the Litopenaeus vannamei is promoted; the conversion efficiency and the live rate of Litopenaeus vannamei feed are obviously improved, and the feed additive in the compound feed of Litopenaeus vannamei is added only by 0.5 percent to 0.8 percent. The invention has no influence on the palatability and the culture environment of the feed, and raw materials adopted in the feed additive have stable resources, low cost and simple production technology.

Description

technical field [0001] The invention relates to a feed additive, in particular to a growth-promoting feed additive for Litopenaeus vannamei in a low-salt environment. technical background [0002] Litopenaeus vannamei (Litopenaeus vannamei) has become a popular species because of its strong disease resistance, fast growth, adaptability to culture in low-salinity waters, delicious meat, relatively low requirements for feed protein, and easy high-density intensive culture. It is one of the three excellent varieties with the highest breeding yield in the world. [0003] In recent years, due to disease outbreaks, coastal water pollution, and increased market demand, the culture of Litopenaeus vannamei has been greatly promoted from coastal waters to inland low-salinity waters, especially in many countries or regions around the world in recent years. The aquaculture in low-salinity waters in the region has developed rapidly, the most typical ones include the Pearl River Delta, Y...

AI Technical Summary

Problems solved by technology

However, there is currently no growth-promoting feed additive product for Litopenaeus vannamei in a low-salt environment in the domestic and foreign markets.

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