Culture method for ctenopharyngodon idellus

Abstract

The invention relates to a culture method for ctenopharyngodon idellus. The method comprises the following steps: (1) carrying out fish pond selection; (2) carrying out fish pond treatment; (3) carrying out fingerling stocking; (4) delivering a nitrogen fertilizer or compound fertilizer into fish ponds in March to April according to the ratio of 25kg / mu to 50kg / mu, wherein during delivery, the nitrogen fertilizer or compound fertilizer is sealed with plastic films and is loaded into woven bags, the woven bags and the plastic films are punctured with chopsticks, and 1 to 10 chopstick-sized holes are left in each woven bag and each plastic film; and (5) carrying out feed delivery. According to the method, the nitrogen fertilizer or compound fertilizer is delivered into the fish ponds in March to April and is slowly volatilized in water, so that nutrients in the water can be kept, water plants in the ponds can rapidly grow under the nutrients, and the water quality can be further improved by the photosynthesis of the water plants.

Description

technical field [0001] The invention relates to a culture of freshwater fish, in particular to a method for cultivating grass carp. Background technique [0002] Grass carp is a popular freshwater fish product and an important source of high-quality and cheap animal protein in the daily diet of the Chinese people. The annual output in the country is more than 4 million tons, and it is one of the important freshwater farmed fish in my country. As the main herbivorous fish species raised in my country, the feeding habits of grass carp begin to transform to herbivore 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. [0003] In recent years, with the development of the feed industry, compound feeds have played a role in the cultivation of grass carp with high protein content, fast growth, labor saving and high economic benefits. However, feeding a large...

AI Technical Summary

Problems solved by technology

However, feeding a large amount of high-protein and high-energy bait makes the grass carp passively change its feeding habits, and its body functions cannot adapt to the change of feeding habits for a while. If it eats bait that exceeds its nutritional requirements for a long time, the nutrition cannot be completely converted, and the body fat will accumulate too much. , leading to the symptoms of poor nutrition metabolism of grass carp, resulting in the decline of immunity and disease resistance of grass carp, and there are also problems such as the decline of fish meat quality and poor taste

[0004] In view of the high incidence of grass carp, the most common way is to feed various feed additives containing antibiotics and other chemical drugs, which not only affect the water quality, but also accumulate antibiotics in the grass carp and cause drug resistance. These antibiotics will As people eat various fish products and enter the human body, this indirectly leads to the abuse of antibiotics, which may cause a variety of drug-induced diseases. At the same time, feed additives will also reduce the quality of grass carp

Due to the improvement of living standards, people put forward higher requirements for the quality of farmed fish, and the problems of low quality and poor taste of grass carp need to be solved urgently