Net cage breeding method for whitmania pigra

Abstract

The invention discloses a net cage breeding method for whitmania pigra. The breeding method includes the steps of preparing a net cage facility, installing net cages, preparing a cocoon producing bed, breeding management and collecting and hatching whitmania pigra cocoons. The net cage is reasonable in structural design, good breed is selected, the design method of the breeding process is reasonable, operation is easy and practical, cost is low, the whitmania pigra breeding effect is improved substantially, and economic benefits are substantially increased.

Description

technical field [0001] The invention relates to a high-efficiency breeding method of a wide-body golden leech cage, belonging to the technical field of aquatic animal breeding. Background technique [0002] Medicinal leeches are traditional precious Chinese medicinal materials in my country. Leeches have a long history of being used as medicines. They have been recorded in the famous Chinese medical books "Shen Nong's Materia Medica" and "Compendium of Materia Medica". , can treat hypertension, coronary heart disease and tumors. At present, medicinal leeches are mostly used in the treatment of diseases of the human and cerebrovascular systems, to prevent the occurrence of human and cerebrovascular thrombosis, and to reduce blood viscosity. The prospects for leech farming are very broad. Broad-bodied golden leech Whitmania pigra Whitman is the preferred species for leech farming due to its large size, fast growth and high medicinal value. [0003] The artificial propagati...

AI Technical Summary

Problems solved by technology

This artificial propagation method has the following problems and disadvantages: the one is that the pro-leech will escape from the source during the breeding period, consumes physical strength, the cocoon production rate is low, the recovery rate of the pro-leech and the collection rate of the cocoon are low; the second is that the pro-leech enters the mud in the cocoon bed Deep, cocoon harvesting is labor-intensive, and in the process of manual cocoon harvesting by loosening the soil with nails and rakes, some cocoons will be dug up and some pro-leeches will be dug and damaged, which will affect the quality of cocoon harvesting. The old and new cocoons cannot be hatched effectively, and the hatched leech seedlings cannot be cultivated in the pond in time, which affects the effect of leech seedling cultivation