Composite additive for preventing and treating freshwater fish yellow fat disease and preparation method thereof

Abstract

The invention discloses a composite additive for preventing and treating freshwater fish yellow fat disease and a preparation method thereof. The additive is prepared from, by weight, 1-4 parts of ursodeoxycholic acid, 1-4 parts of taurine, 15-25 parts of beta-glucanase, 2-5 parts of phytase, 8-13 parts of non-starch polysaccharide enzyme, 10-20 parts of 35% vitamin C polyphosphate, 7-15 parts of 5*105 IU / g vitamin E acetate, 3-6 parts of antioxidant and 20-33 parts of rice bran meal. The preparation method includes the steps that the components are weighed according to the weight ratio, smashed and placed into a mixer to be evenly mixed, wherein rice bran meal, ursodeoxycholic acid, taurine, phytase and antioxidant are added first, and then other components are added sequentially. The additive has an obvious function of preventing and treating freshwater fish yellow fat disease, improves fish immunity, and also has the functions of promoting daily ration increase of freshwater fishes and increasing the digestion and utilization rate of feed.

Description

technical field [0001] The invention belongs to a feed, and relates to a novel functional aquatic animal compound feed, in particular to a compound feed for preventing the physiological function of yellow fat of freshwater fish. Background technique [0002] There are many varieties of freshwater fish and wide geographical distribution. It is the largest species in my country's inland aquaculture production and sales, and it is also the species with the longest aquaculture history. The current freshwater fish species include herring, grass carp, crucian carp, silver carp and bighead carp, red carp, yellow catfish, California perch, snakehead carp, etc. During the breeding process, the fish body is inevitably affected by the pond environment, feed, and water quality, resulting in damage to the physiological functions of the fish body, resulting in slow growth, body color changes, low feed conversion rate, and survival rate. Freshwater fish farming efficiency is thus affected...

AI Technical Summary

Problems solved by technology

[0004] Yellow fat disease will cause many disadvantages to freshwater fish: ① It will affect the appearance of food, lead to low prices in ponds, and lose the interests of farmers

Yellow grease causes the surface color of freshwater fish to change, which is obviously different from normal fish. At the same time, the color of fish fillets is quite different from the normal color, which makes the price of pond head low and affects the farming efficiency of farmers.

At the same time, it also leads to the reduction of the edible safety of aquatic products.

②Immunity of the fish body decreases, and the risk of breeding increases

Generally, yellow fat fish body appears, but the immunity will decrease, resulting in weak disease resistance of the fish body and a sharp increase in the risk of breeding

③Yellow fat further promotes the dysfunction of the fish body, resulting in a decrease in the eating ability of the fish body, a decrease in growth rate, a decrease in the conversion rate of feed nutrients, and excessive feed waste causing water pollution

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