Earth pond artificial propagation and breeding integrated technology for crayfishes

Abstract

The invention discloses an earth pond artificial propagation and breeding integrated technology for crayfishes. The earth pond artificial propagation and breeding integrated technology is characterized in that propagation and breeding are carried out in the same pond, so that both two seasons of juvenile crayfishes and two seasons of adult crayfishes can be harvested in one pond, and therefore, two seasons of juvenile crayfishes and one season of adult crayfishes are additionally harvested in comparison with crayfishes harvested by using a conventional pond breeding mode of crayfishes. According to the technical scheme adopted by the invention, the earth pond artificial propagation and breeding integrated technology for crayfishes comprises the following steps: (I) creating and modifying pond conditions; (II) preparing the pond; (III) feeding parent crayfishes; (IV) feeding the crayfishes and applying fertilizer; (V) enabling spawning, hatching and larva growing; (VI) carrying out breeding management; (VII) cultivating juvenile crayfishes; (VIII) breeding adult crayfishes; and (IX) catching adult crayfishes. Compared with the conventional pond breeding mode of crayfishes, the earth pond artificial propagation and breeding integrated technology provided by the invention has the beneficial effects that the artificial crayfish propagation is added, so that the quality and quantity of larvae bred in the pond are guaranteed; crayfish finished products come into market in advance; and the yield is increased. Thus, the economic benefits are improved.

Description

technical field [0001] The patent of the invention relates to the field of crayfish artificial propagation and healthy breeding, and belongs to the category of breeding technology. Background technique [0002] As far as the applicant knows, artificial breeding and farming are separated in the crayfish industry, especially in earthen ponds. [0003] Pure breeding only, not artificial breeding. The previous artificial propagation technology was only carried out in cement ponds, and the earthen ponds were only allowed to breed seedlings naturally. The farmers relied on the seed shrimps kept in the ponds to reproduce naturally, as seedlings for cultivating adult shrimps, and only harvested one season of adult shrimps a year. Due to the natural reproduction of the remaining species of shrimp, the quantity and quality of the shrimp seedlings are uncontrollable, and the emergence time is late and very out of sync. Therefore, the specifications of the shrimp seedlings are uneven a...

AI Technical Summary

Problems solved by technology

Due to the natural reproduction of the remaining species of shrimp, the quantity and quality of the shrimp seedlings are uncontrollable, and the emergence time is late and very out of sync. Therefore, the specifications of the shrimp seedlings are uneven, and the quality of the seedlings is poor.

This often results in insufficient seedlings and low yields for pond culture; the quality of seedlings is poor and the growth rate is slow; the emergence time is late, the growth period is shortened, and the individual size is small; these all cause the economic benefits of pond culture to be low

There has been no good solution to this situation