A kind of large-scale cultivation method of Pachymandibacter seedlings

Abstract

The invention relates to a method for large-scale cultivation of bream seedlings, belonging to the technical field of rare and unique fish cultivation. According to the characteristics of growth and development of bream larvae, juveniles and juveniles in different stages, breeding ecological learning and nutritional and physiological characteristics, the present invention divides the entire seed cultivation process into three stages: glass fiber tank micro-flow water cultivation, large water surface ecological pond Cultivation and intensive cultivation in running water ponds. The invention constructs a healthy, safe and efficient large-scale seed cultivation mode, which effectively solves a series of problems such as frequent disease occurrence, slow growth speed and low utilization efficiency of facilities in the traditional seed cultivation process, and is a rare species in the upper reaches of the Yangtze River It provides a reference for the large-scale seed breeding of unique fish.

Description

technical field [0001] The invention relates to a method for large-scale cultivation of fish fry, in particular to a method for cultivating bream, a unique fish in the upper reaches of the Yangtze River. Background technique [0002] Thick bream ( Megalobrama pellegrini ) belongs to Cyprinidae, Cyprinidae, Cyprinidae, and Bream. It is mainly distributed in the main stream of the upper reaches of the Yangtze River and the middle and lower reaches of the main tributaries of the Minjiang River and Jialing River. Economic value and nutritional value. In recent years, due to overfishing, water pollution, and construction of water conservancy projects, the resources of Pachybrama have declined sharply. Quantitatively evaluating Pachybrama from the aspects of threat degree, genetic diversity, and value has reached the state of urgent indoor protection. In order to promote the coordinated development of hydropower project development and water ecological environment protection, an...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for large-scale cultivation of pachybranchus seedlings. Aiming at the bottleneck technical difficulties existing in the traditional seedling cultivation process, the present invention comprehensively utilizes polyculture of predatory fish, slow-release control of fertilizer sources in ecological ponds, Nutritional immune strengthening and anti-stress training and other technical means can effectively solve a series of technical problems such as slow growth, strong stress response and easy outbreak of diseases under artificial cultivation conditions.

Images