A micro ecological feed for preventing the parent fish of grass carp from fish enteritis and its using method thereof

Abstract

The invention belongs to the field of aquaculture technologies, which specifically involves a micro ecological feed for preventing the parent fish of grass carp from fish enteritis and its using method. Spraying microecologics and enteritis preventive products on the surface of extruded feed and at the stage of cultivating the parent fish of grass crap and when the sights of enteritis are observed, replacing the conventional feed with the said micro ecological feed. Compared with the existing technologies, this invention has the following advantages: antagonizing the pathogenic bacteria; improving animal immunity; sufficiently utilizing the interrelationship between strains to obtain a micro ecological balance with strong stress resistance and effective maintenance of animal intestinal environment; quickly and effectively having effect on grass carp intestine by spraying the microecologics and enteritis preventive products on the surface of extruded pellet feed. In the mean time there is a synergistic effect between microecologics and preventive agents, which can improve and adjust the intestinal conditions of grass crap with effective effect of prevention and cuing to largely decrease enteritis prevalence and mortality of grass crap.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a micro-ecological feed for preventing grass carp broodstock enteritis and a method for using the same. Background technique [0002] Grass carp is a popular freshwater fish product, and it is an important source of high-quality and cheap animal protein in the daily diet of the Chinese people. The annual output of the country is more than 4 million tons. It is one of the important freshwater fishes in my country. Grass carp's feeding habits begin to transform into herbivory when the body length is 2.6cm. Aquatic grass and grass are the natural food that grass carp likes to eat, and they are also the main source of bait for traditional grass carp. With the large-scale development of the market, grass carp nursery Reproductive lag, one of the main reasons is that grass carp broodstock has a high prevalence of enteritis, once sick, it will die or affect growth performa...

AI Technical Summary

Problems solved by technology

[0002] Grass carp is a popular freshwater fish product, and it is an important source of high-quality and cheap animal protein in the daily diet of the Chinese people. The annual output of the country is more than 4 million tons. It is one of the important freshwater fishes in my country. Grass carp's feeding habits begin to transform into herbivory when the body length is 2.6cm. Aquatic grass and grass are the natural food that grass carp likes to eat, and they are also the main source of bait for traditional grass carp. With the large-scale development of the market, grass carp nursery Reproductive lag, one of the main reasons is that grass carp broodstock has a high prevalence of enteritis, once sick, it will die or affect growth performance. The current routine response plan is to treat the disease in time after the disease is found, but it will cause a serious lag in the reproduction of grass carp broodstock, affecting Breeding benefits