Chinese medicinal herb feed additive for controlling nutritional type hepatobiliary syndrome of cultured freshwater fishes

Abstract

The invention discloses a Chinese medicinal herb feed additive for controlling nutritional type hepatobiliary syndrome of cultured freshwater fishes. The additive is prepared from the following raw materials by weight (on the basis of one ton of feed): 2,000 to 4,000g of silibinin, 500 to 1,500g of root of red-rooted salvia, 500 to 2,000g of cassia seed, 1,000 to 6,000g of hawthorn, 1,500 to 3,000g of rhubarb, 800 to 2,500g of notoginseng root, 500 to 2,000g of astragalus, 1,000 to 4,000g of motherwort herb, and 1,000 to 4,000g of garlic. A preparation method comprises the following steps of: drying all raw materials, accurately weighing according to the weight, performing ultrafine crushing, sieving with a 60-mesh screen, and mixing uniformly to obtain the Chinese medicinal herb feed additive for controlling nutritional type hepatobiliary syndrome of the cultured freshwater fishes. Through culture experiments on feeds of the cultured freshwater fishes such as grass carps, black carps, carps, crucian carps, bream fish, Tilapia mossambica and the like, the Chinese medicinal herb feed additive has a good effect of treating or preventing nutritional type hepatobiliary syndrome of various freshwater fishes which are cultured at high density; and the Chinese medicinal herb feed additive is safe and efficient after being used for a long time, cultured objects have bright body color and strong vitalities and grow rapidly, the feed conversion rate is high, and the culture benefit is good.

Description

technical field [0001] The invention relates to a feed additive, in particular to a Chinese herbal medicine feed additive for preventing and treating nutritional hepatobiliary syndrome of freshwater cultured fish. Background technique [0002] China is the world's largest aquaculture country, and it is also the only country in the world where aquaculture output exceeds fishing output. The output of aquaculture aquatic products accounts for 70% of the world's total, and aquaculture occupies a very important position in the national economy. In recent years, my country's aquaculture industry has developed rapidly, and the average annual growth rate of freshwater aquaculture, as the farming model with the largest output, has remained stable at a relatively high speed of about 10%. In 2008, the total production of freshwater products in my country reached 22.973 million tons, of which the production of freshwater aquaculture was 20.725 million tons, accounting for 90% of the tot...

AI Technical Summary

Problems solved by technology

However, due to the wide variety of freshwater farmed fish and the relatively late start of domestic aquatic animal nutrition research, the nutritional research on most of the domestic farmed fish species is still insufficient, and due to the use of some inferior artificial compound feed As well as the influence of incorrect breeding and feeding methods, the outbreak of nutritional hepatobiliary syndrome in freshwater cultured fish is becoming more and more frequent, which leads to reduced vitality of cultured fish, reduced food intake, slow growth, and high mortality. This situation has seriously hindered the further development of the freshwater fish farming industry and the feed manufacturing industry.