Feed additive for preventing and treating fatty liver for grass carps

Abstract

The invention provides a feed additive for preventing and treating fatty liver for grass carps. The additive comprises the following raw materials in percentage by weight: 40-60% of a fermented extract of cereals, 15-25% of a traditional Chinese medicine extract, 10-20% of castor oil, and 10-15% of medical stones. The fermented extract of cereals is mainly prepared by fermenting oat, highland barley, coix seeds and black rice with Lactobacillus acidophilus, photosynthetic bacteria and Hansenula; and the traditional Chinese medicine extract is mainly prepared by decomposing and curing gynostemma pentaphyllum, earthworm powder, milk-vetch roots and eucommia leaves. The additive can be directly added to a fish feed so as to reduce fat deposition in the fish and to maintain the normal physiological functions of liver tissues.

Description

technical field [0001] The invention belongs to the technical field of feed additives, in particular to a feed additive for preventing and treating fatty liver for grass carp. Background technique [0002] Grass carp (Ctenopharyngodon idella) is widely distributed in rivers in the northeast, east, central and southern regions of China. Since the successful hatching in 1958 by artificial oxytocin insemination, grass carp has been introduced to various parts of the world in recent decades, such as Japan, Southeast Asia, Eastern Europe, and the United States, and has become a highly valued freshwater cultured fish. Grass carp is the second most productive fish in the world, and it is also the main freshwater aquaculture fish in my country. In 2009, the output reached 4.081 million tons, accounting for 18% of the total freshwater fish aquaculture output (China Fishery Yearbook, 2009). [0003] In recent years, with the high-density and intensive development of aquaculture, larg...

AI Technical Summary

Problems solved by technology

However, the commonly used antibiotics have the disadvantages of reducing animal immunity, polluting water quality and drug residues.

The extensive use of antibiotics will lead to a series of serious problems such as deterioration of the water environment in old aquaculture areas, serious soil pollution, drug resistance of pathogenic microorganisms, decline in the quality of aquatic products, and excessive drug residues.

At present, artificial breeding is mostly based on feeding compound feeds. During the breeding process, fish are prone to fat and short body, a high proportion of internal organs, and a small proportion of edible parts, which is commonly known by farmers as "grass carp with big belly".

The price of big-bellied grass carp is low, which affects the economic income of farming

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