River crab and yellow catfish polyculture method

A technology of polyculture of yellow catfish, applied in fish farming, application, climate change adaptation, etc., can solve the problems of restricting the development of freshwater aquaculture, inability to effectively and rationally use aquaculture water, and low yield per unit of monoculture. The effect of saving breeding water, saving feed, and increasing breeding output

Inactive Publication Date: 2015-05-20
董德华
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AI Technical Summary

Problems solved by technology

With the shrinking of aquaculture water resources, the development of freshwater aquaculture has been severely restricted. At

Method used

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Examples

Experimental program
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Embodiment 1

[0007] Embodiment 1, a kind of river crab yellow catfish polyculture method, select pond area to be the river crab culture pond of 10-20 mu, pond depth 1.2-2.5 meter, and supporting aeration implementation, before throwing seedlings 30 days with unslaked lime per mu 10-20 kg for disinfection, and put into fermented and decomposed organic fertilizer a week later, 50-100 kg per mu. Before and after the Ching Ming Festival, yellow catfish fry will be released. The size of the seedlings is 10-30 grams, and 2.5 kilograms per mu will be released. Because the yellow catfish is an omnivorous fish, the food intake is small when it is young, and the crab pond is fed with pellet feed and small miscellaneous fish. The leftover feed of the river crab is enough for the yellow catfish to eat, and no additional feed is needed. After August, with the growth of the yellow catfish and the increase in food intake, it is necessary to supplement the special feed for the yellow catfish. The daily fe...

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Abstract

The invention discloses a river crab and yellow catfish polyculture method. A river crab culture pond with the pond area ranging from 10 mu to 20 mu is selected, the pond depth ranges from 1.2 m to 2.5 m, an oxygenation facility is matched, sterilization is conducted with quicklime of 10-20 kg for each mu 30 days before fry is cast, and fermented and thorough decomposed organic fertilizer of 50-100 kg each mu is cast one week later; the yellow catfish fry is cast around the Tomb-sweeping Day, the specification of the fry ranges from 10 g to 30 g, and 2.5 kg of fry is cast each mu. Due to the fact that the yellow catfish is omnivorous fish, the fry is small in appetite, and pellet feed and small trash fish are cast in the crab pond, the remaining feed of river crabs is enough to feed the yellow catfish, and feed does not need to be additionally cast. After August, along with the growth of the yellow catfish and the increase of the appetite of the yellow cast fish, feed special for the yellow catfish needs to be supplemented, the daily feed cast amount is 20-30 kg each mu, and the feed is cast two times in the morning and at the nightfall. The river crab and yellow catfish polyculture method has the advantages that the culture water body is saved, the culture yield is increased, and the feed is saved.

Description

technical field [0001] The invention relates to a method for cultivating aquatic products, in particular to a method for polyculture of river crab and yellow catfish. Background technique [0002] Because the bait of river crab and yellow catfish is relatively close, the traditional river crab and yellow catfish generally adopt the monoculture mode. With the dwindling of aquaculture water resources, the development of freshwater aquaculture has been severely restricted. At the same time, the yield per unit of monoculture is low, and the aquaculture water cannot be effectively and rationally used. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for polyculture of river crab and yellow catfish in view of the deficiencies in the prior art. [0004] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention relates to a method f...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 董德华
Owner 董德华
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