Cage culture method of adult fish of ictalurus punctatus

A technology for channel catfish and cage culture, applied in fish farming, application, climate change adaptation and other directions, can solve problems such as increase, environmental deterioration of aquaculture waters, and economic loss of industrialized aquaculture.

Inactive Publication Date: 2013-09-25
苏州市阳澄湖现代农业发展有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

With the rapid expansion of the scale of channel catfish industrialization, the output per unit area of ​​intensive cages gradually increased, the environment of the breeding waters gradually deteriorated, and the farming techniques were not standardized, which led to an increasing number of channel catfish diseases and deaths caused by bacterial outbreaks Occurs from time to time, causing great economic losses to industrialized farming

Method used

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Embodiment Construction

[0013] The preferred embodiments of the present invention will be described in detail below; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0014] A method for cultivating channel catfish in net cages, comprising the following steps:

[0015] Parental breeding pond: fresh water quality, depth 2.0-2.5m, pH value 7.0-8.5 Pond cleaning, disinfection and wild removal: Before putting fish species in the adult fish breeding pond, the pond cleaning work should be carried out first to remove the weeds in the pond and use Quicklime 2 250~3 000 kg / hm 2 The slurry is sprayed on the whole pool for disinfection, which can effectively kill germs and wild fish. After 14 days, apply organic fertilizer 1500 kg / hm 2 , and then gradually add water to 1.5 m, and release seedlings after a large number of plankton appear in the pond water;

[0016] Cage setup: The materi...

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Abstract

Disclosed is a cage culture method of adult fish of ictalurus punctatus. The water quality of a pond is fresh, the depth of the pond is 2.0 to 2.5 m, and a pH (Potential of Hydrogen) value of the pond is 7.0 to 8.5. A cage is made of polyethylene meshes. The adult fish of the ictalurus punctatus is put into the pond when the water temperature is 15 to 20 DEG C in the morning from the middle of March to the middle of April; 2250 to 3000 tail per hm2 10 to 12 cm silver carp fingerling and 375 tail per hm2 spotted silver carps are cultured; a method that compound feed and animal feed are combined is utilized; crude protein content is 35% in the compound feed and the animal feed which is mainly fresh or frozen chubs, carps, trash fishes and animal livers is fed more; the animal feed and the compound feed are fed according to 1 to 4% of the weight.

Description

technical field [0001] The invention relates to a method for aquaculture, in particular to a method for cultivating channel catfish adult fish in net cages. Background technique [0002] Channel catfish, also known as channel catfish and river catfish, is native to the Mississippi River in the United States and is the main freshwater farmed fish in the United States. Channel catfish are relatively large in size. Under artificial breeding conditions, the fish fry can grow into fish species with a body length of 14-20 cm and a weight of 0. 03-0. 10 kg in the first year. Reach 0. 8~ 1. 5kg. The front part of the fish is wider than the back part, the head is smaller, the snout is slightly pointed, the mouth is subterminal, and the upper and lower jaws have small and dense fine teeth. The body surface is smooth without scales, the mucus is abundant, the lateral line is complete, and there are obvious lateral line holes in the skin. There are 4 pairs of dark gray barbels on the...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张卫业
Owner 苏州市阳澄湖现代农业发展有限公司
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