Composite immunopotentiator for control of Mylopharyngodon piceus death at high temperature in summer and its use method

Abstract

In order to solve the survival possibility of probiotics in high-temperature and high humidity environment and add them into aquatic microcapsule baits to produce probiotic-containing microcapsule baits suitable for shrimps, crabs, fry and the like, the invention discloses a composite immunopotentiator for control of Mylopharyngodon piceus death at high temperature in summer and its use method. The composite immunopotentiator mainly comprises the following raw materials by mass: 20-40% of a dried ginger extract, 5-15% of propylgallate, 25-40% of tryptophan, 6-17% of allicin, 5-20% of vitamin E, and 2-10% of ethoxy quinoline. The composite immunopotentiator for control of Mylopharyngodon piceus death at high temperature in summer can be blended into forage as a forage additive, and during feeding, its adding amount accounts for 0.1-0.5% of the mass of the forage; or the composite immunopotentiator can be splashed in a fish pond, and during splashing into the fish pond, the use concentration of the composite immunopotentiator is 0.2-0.4ppm. With the composite immunopotentiator provided in the invention, the Mylopharyngodon piceus's body immune function can be effectively improved, and the death rate of Mylopharyngodon piceus can be reduced.

Description

technical field [0001] The invention relates to a composite immune enhancer, which belongs to the technical field of aquaculture, in particular to a composite immune enhancer capable of preventing herring from dying at high temperature in summer and a method for using the same. Background technique [0002] Herring (Mylopharyngodon piceus), also known as green carp, black carp, snail green carp, black carp, black carp, etc. It is mainly distributed in the plains south of the Yangtze River in China. It is one of the "four major fish" in freshwater farming in China and has a long history of farming in China. In 2011, the total output of herring in China reached 467,700 tons, which is an important freshwater economic fish in the Yangtze River Delta region. For the nutritional requirements of herring, many experts have carried out systematic research and developed some special herring feed, such as Chinese patent application CN201110308066.3 (a kind of herring feed formula), Ch...

AI Technical Summary

Problems solved by technology

However, with the rapid development of herring intensive farming, in recent years we have found that the mortality rate in intensive herring ponds in the Yangtze River Delta region increased significantly during summer high temperature

According to relevant analysis, the cause of the disease is that the high-grade feed has a high nutrient concentration, and vitamins and other supplements are insufficient, which leads to the weakening of the anti-stress ability of the herring under the excessive growth rate.

At present, most of the prevention and treatment methods for this disease are splashing chemical disinfectants such as povidone iodine on the water body or oral administration of antibiotics such as enrofloxacin. These methods have the risk of drug residues and secondary damage to farmed fish