Indoor-outdoor multi-crops polyculture method for shrimp, soft-shelled turtle and fish

Abstract

An indoor-outdoor multi-crops polyculture method for shrimp, soft-shelled turtle and fish includes building an upper greenhouse culture pond and a lower outdoor intensive culture pond, and using a transfer pipe to communicate the upper greenhouse culture pond and the lower outdoor intensive culture pond; throwing desalted giant tiger prawn in the upper greenhouse culture pond in mid-March, and keeping water temperature at 25 DEG C; pouring water into the lower outdoor intensive culture pond prior to throwing in silver carp, bighead carp and Chinese soft-shelled turtle for breeding in early May; after seedlings grow to about 5cm 50-60 days after culture of the giant tiger prawn in the upper greenhouse culture pond, transferring young shrimps in the upper greenhouse culture pond into the lower outdoor intensive culture pond for breeding through the transfer pipe, harvesting first crop from late June to early July; and harvesting the silver carp, the bighead carp and the Chinese soft-shelled turtle in November to December after continuous three-crop culture of the giant tiger prawn. The indoor-outdoor multi-crops polyculture method for shrimp, soft-shelled turtle and fish breaks through the bottleneck of existing culture production and benefit.

Description

technical field [0001] The invention relates to an indoor and outdoor multi-crop three-dimensional ecological polyculture method for shrimps and turtles. Background technique [0002] At present, the culture mode of one or two crops is generally adopted in the breeding process of prawns, resulting in the lack of reasonable and efficient use of the culture ponds, resulting in a serious waste of resources; with the continuous development of the aquaculture industry, the breeding density continues to increase. The amount of bait is also continuously increased to increase the carrying capacity of the pond. Although the output of the unit pond has been greatly improved, the extensive aquaculture that blindly pursues high yield has caused great pollution to the aquaculture water environment, especially the environment at the bottom of the pond, and destroyed the original ecological balance of the pond. Once the deterioration exceeds the adaptation range of the breeding objects, f...

AI Technical Summary

Problems solved by technology

The highest net profit of the second crop of greenhouse farming is 22,000 yuan / mu, it is difficult to make breakthroughs in production and efficiency, and encounters bottlenecks in breeding technology