Application method of floating cultivation trough for fry of Siniperca chuatsi

Abstract

The invention discloses an application method of a floating cultivation trough for fry of Siniperca chuatsi. The application method has the characteristics that the cultivation trough comprises a shading bird preventing net, a cross support, a vertical floating ring, a horizontal air inflation pipe, a vertical air inflation pipe, gas dispersion stone, a cultivation tank body, an upper ring of thecultivation tank and a bottom ring of the cultivation tank. When the cultivation tank is in use, the cultivation tank is arranged in a breeding tank of brood fish of Siniperca chuatsi, and the hatchedfry of Siniperca chuatsi is put into the cultivation tank, sufficient bait fry is put into the cultivation tank, and supplementation of dissolved oxygen in the cultivation tank is performed through the gas dispersion stone; and in the limited space of the cultivation tank, the bait fry can be caught easily by the fry of Siniperca chuatsi so that the fry of Siniperca chuatsi can grow rapidly, andafter the fry becomes Siniperca chuatsi brood fish, the Siniperca chuatsi brood fish enters a Siniperca chuatsi brood fish breeding pond from an opening in the bottom of a cylindrical plastic membraneso as to achieve cultivation and complete cultivation of the Siniperca chuatsi fry stage. The application method has simple design and convenient use, the fry of Siniperca chuatsi has large predationopportunities, fast growth and a high survival rate of cultivation, and a good effect is achieved.

Description

technical field [0001] The invention relates to the technical field of fishery, in particular to a method for using a floating mandarin fish seedling cultivation tank. Background technique [0002] Mandarin fish is a high-quality freshwater fish that uses live fish as bait throughout its life. When mandarin fish is artificially bred, at the young stage of mandarin fish, it mainly eats freshly hatched squid bream, silver carp and bighead carp, etc., while squid bream The fry of silver carp, silver carp and bighead carp are very small and cannot be used to feed mandarin carp seedlings in cages. Generally, the newly hatched mandarin carp seedlings are stocked in cement ponds, and then the newly hatched fry of squid bream, silver carp and bighead carp are put in for feeding. Feeding, due to the relatively large water body environment, the probability of mandarin fish seedlings catching bait fish fry is reduced, which affects the survival rate of mandarin fish seedlings. Some use...

AI Technical Summary

Problems solved by technology

[0002] Mandarin fish is a high-quality freshwater fish that uses live fish as bait throughout its life. When mandarin fish is artificially bred, at the young stage of mandarin fish, it mainly eats freshly hatched squid bream, silver carp and bighead carp, etc., while squid bream The fry of silver carp, silver carp and bighead carp are very small and cannot be used to feed mandarin carp seedlings in cages. Generally, the newly hatched mandarin carp seedlings are stocked in cement ponds, and then the newly hatched fry of squid bream, silver carp and bighead carp are put in for feeding. Feeding, due to the relatively large water body environment, the probability of mandarin fish seedlings catching bait fish fry is reduced, which affects the survival rate of mandarin fish seedlings. Some use smaller cement ponds for cultivation. Coupled with the continuous input of bait fish fry, the biomass per unit of water is large, which has a great impact on water quality. It needs to be continuously divided into pools for operation, which affects the feeding and growth of mandarin fish seedlings, and also increases the difficulty of operation, affecting the normal operation of mandarin fish seedlings. cultivate

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