Intensive cultivation and fattening technology of Chinese mitten crab

Abstract

The intensified cultivation and fattening technology of Chinese mitten crabs involves aquaculture technology, and is characterized in that: the adult crabs of Chinese mitten crabs that have moulted for the last time are selected as breeding and fattening objects, and the male and female are separated and put into fattening ponds respectively. After the crab enters the fattening period, it is mainly in the stage of fattening and gaining weight. The combination of plant-based concentrate feed and animal-based bait is fed once in the morning and evening, and the daily feeding amount generally accounts for 3-4% of the body weight of the mitten crab. Invention of Chinese mitten crabs through intensive cultivation, due to the plump fat and muscle filling, has enough energy to make the fattened Chinese mitten crabs pass the overwintering stage until April-May of the next year, so that through strengthening measures and corresponding supporting technologies, it can The market time of Chinese mitten crabs is greatly extended, and the balanced listing of Chinese mitten crabs is basically achieved, and Chinese mitten crabs with plump fat, muscle filling and delicious taste can be obtained, and the quality of Chinese mitten crabs can be improved in a short period of time. Get high benefits in a short time.

Description

technical field [0001] The invention relates to aquaculture technology, in particular to the intensive cultivation and fattening technology of Chinese mitten crab. Background technique [0002] The fattening of Chinese mitten crabs is actually to obtain Chinese mitten crabs with plump cream, and whether the creamy fat of Chinese mitten crabs is plump or not is reflected in the nutrition of the hepatopancreas (lipid storage) and the fullness of the gonads (cream). , the most direct indicator is whether the gonads are good or bad. Because the development of gonads is good, it must rely on the hepatopancreas to continuously obtain rich nutrition as a guarantee, so the purpose of fattening mainly comes down to making Chinese mitten crabs obtain well-developed gonads. And this part of the work is also the main field of nutritional reproduction research, mainly to study the relationship between parental breeding and reproduction. In this regard, a large number of domestic and fo...

AI Technical Summary

Problems solved by technology

[0003] A key problem currently existing in my country's Chinese mitten crab culture is that the fattening of Chinese mitten crabs is ignored in production, which often results in insufficient plumpness and fat of the adult crabs on the market, which greatly affects the quality and quality of the market. benefit

At the same time, ignoring the fattening work of Chinese mitten crabs is also a major factor causing the poor quality of crabs on the market