Fry breeding method with high survival rate

Abstract

The invention belongs to the technical field of aquatic product breeding, and particularly discloses a high-survival-rate fry breeding method which comprises the steps that 1, a spawning pond is built outdoors; step 2, taking female carps which have no body surface trauma and are normally fed and fertilized; 3, laying a protective film with a rough surface at the bottom of the spawning pond; 4, disinfecting the spawning pond, and then putting water into the spawning pond; 5, the selected female carps are put into the built spawning pond; 6, binding the fish grass into circles, and placing the circles in the spawning pond; 7, installing an electric water heat pipe in the spawning pond, and controlling the temperature of the electric water heat pipe to be 20-25 DEG C to promote the female carps to spawn; 8, feed is put into the spawning pond, the weight of the feed put each time is 100-120 g, and the feed is put four times a day; 9, the fish grass with the fish eggs penetrates through a tree trunk, water is sprayed once every three hours and lasts for three days, the water needs to be sprayed thoroughly and evenly, and the fish eggs are prevented from being dried and dewatered and wait for incubation. According to the scheme, the early breeding rate of carps is high.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for raising fish fry with high survival rate. Background technique [0002] The natural breeding of fish means that after the beginning of spring every year, the temperature rises, and the female fish will lay eggs, and by hatching the eggs, they will reproduce and hatch new fry. Most fish farming enterprises rely on natural breeding to incubate new fry. For the fry bred through natural breeding, the time when the fry of each company is mostly on the market is not much different. In the early days, many other companies needed a large number of fry, which made the sales of fry that went on the market earlier the better, and the unit price of fry was higher. [0003] The Chinese patent with the publication number CN109349173A discloses a breeding method for improving the survival rate of grouper fish fingerlings, including indoor seedling cultivation and outdoor seed...

AI Technical Summary

Problems solved by technology

[0004]However, the above scheme is not practical for carp. In the breeding habits of carp, early reproduction of carp needs to massage its abdomen. At the same time, the temperature suitable for carp reproduction must be ensured , therefore, we need to provide a method of raising fish fry with high survival rate to be suitable for carp early breeding

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