Mixed culture method for scatophagus argus and macrobrachium rosenbergii in land-based greenhouse cement pool

Abstract

Provided is a mixed culture method for scatophagus argus and macrobrachium rosenbergii in a land-based greenhouse cement pool. The method is characterized in that the scatophagus argus and macrobrachium rosenbergii are cultured in a mixed mode in a land-based greenhouse cement pool; when the length of macrobrachium rosenbergii grows to 3 to 4 cm, the scatophagus argus is released; in the early culture stage, the gable of the greenhouse is enclosed, doors are kept close after use, and no shading film is applied; in the middle culture stage, the gable and the doors are opened for ventilating and half-warehouse shading film is used; in the later culture stage, the gable is closed and doors are kept close after use, the half-warehouse shading film is kept; water is changed once a week and each time one half water is changed; in the middle culture stage, if the water quality deteriorates due to the emergence of large quantity of filamentous algae and enteromorpha, sediment upturning is carried out for one time, wherein the sediment upturning is carried out by fishing net hauling and drainage bottom cleaning. Whole pool feeding is adopted with compound feed for macrobrachium rosenbergii twice a day, no feed for scatophagus argus is used; when the water temperature reaches 18DEG C, catching and harvesting are carried out. when harvesting, the weight of scatophagus argus is increased by 50g, which reaches the standard for sale; the scatophagus argus and the macrobrachium rosenbergii can be used as reserved parents for overwintering culture.

Description

technical field [0001] The invention relates to a polyculture method of money fish and giant giant rosenbergii in an aquaculture pond, in particular to a polyculture method of money fish and giant giant rosenbergii in a cement pond of a land-based greenhouse. Background technique [0002] Money fish (Scatophagus argus), commonly known as golden drum fish, belongs to Perciformes, Perciformes, Scatophagus family, and Scavengeria genus. Live bait, because of its beautiful shape, colorful colors and delicious meat, is a rare seawater economic fish with ornamental and edible value. It can be cultured in seawater, brackish water and fresh water, and has become an important species for pond and cage culture in southern my country in recent years. In the process of aquaculture production, whether it is in a pond or indoors, the monoculture of money fish causes a large number of deaths due to its clustering and immobile habits, and it is prone to parasitic diseases such as small mel...

AI Technical Summary

Problems solved by technology

[0007] The salient features of the present invention are: 1) Utilize the food habit of money fish that like to eat filamentous algae and enteromorpha, ecologically prevent and control the outbreak of filamentous algae or enteromorpha in the pond of Macrobrachium rosenbergii, which not only improves the cultured survival rate of Macrobrachium rosenbergii but also protects the environment Harmless, compared with drug control, it avoids the impact of drugs on the growth and survival of Macrobrachium rosenbergii, reduces the large amount of water displacement caused by the use of drugs, and saves drug and labor costs; 2) 150-200g / tail size The money fish is the backup parent. It feeds and grows vigorously at this stage. During the period of about 2 months when the filamentous algae and Enteromorpha in the ecological management ponds of Macrobrachium rosenbergii break out, no artificial compound feed is fed, and only the filamentous algae and Enteromorpha is food, so it reduces the breeding cost and improves the nutritional structure of food, which is beneficial to the development of gonads, later parental cultivation and artificial reproduction; For parasitic diseases such as melon worms, mixed with Macrobrachium rosenbergii, because Macrobrachium rosenbergii has the habit of occupying land and there is a conflict in the activity space, the money fish has increased the amount of exercise, and the probability of parasitic diseases is greatly reduced. During the breeding period, there is no need to use formaldehyde bath disinfection ; 4) fully utilized the culture pond space, improved the utilization rate of water body, under the condition of not increasing input, can make the money fish of input increase in fat and increase in weight, improved production efficiency and economic benefit; 5) solved giant giant rosenbergii In the early and middle stages of land-based farming, when filamentous algae or enteromorpha break out, the shrimp seedlings are small and the operation of turning over the pond is difficult. After the shrimp seedlings grow to a larger size, the ponds are turned over, which improves the survival rate of the shrimp seedlings;6 ) This method is easy to operate, easy to accept and popularize