A kind of ecological early propagation method of scallops in greenhouse cement pond

Abstract

Provided is an ecological early-breeding method of rhodeus in a greenhouse cement pond. The method comprises the production steps of breeding outside cages of parents for rhodeusbreeding, ecological fertilizer water and biological bait culture, daily management, fish fry counting and explantation of the parents. The ecological early-breeding method of the rhodeus in the greenhouse cement pond is characterized in that in early March, the temperature of water in a greenhouse is raised to 12 DEG C or above, the parents of the rhodeus are gathered in net cages of the greenhouse cement pond through net hauling operation to select the parents for breeding, and the selected parents are moved into a ground-based greenhouse cement pond; till the middle of March or late March, freshwater mussels are put in the ground-based greenhouse cement pond for mating and oviposition of the rhodeus; during March and April, ecological fertilizer water and biological bait culture is conducted; till July, regular inspection is conducted, and biological bait is appropriately supplemented; till the middle of July or late July, net hauling is conducted to conduct fish fry counting and explantation of the parents, and cultured fish fry can be put in a pond for conventional breeding.

Description

technical field [0001] The invention relates to an artificial breeding technique for fishes of the genus Cyprinus subfamily Cyprinidae, in particular to an ecological early breeding technique for fish of the Cyprinidae greenhouse cement pond. Background technique [0002] Rhodeus, belonging to Cyprinidae, Cyprinidae, and Subfamily Cyprinidae, is a small omnivorous wild freshwater fish. It is distributed in all major water systems, especially in the south of the Yangtze River. It has a special breeding Habit (eggs are laid in the gill flaps of mussels). Seaweed, omnivorous, mainly algae, the food is aquatic plants, leaves of higher plants, algae, sedimentary organic matter, zooplankton, aquatic insects and cladocera, etc. It is useful for controlling algal blooms in eutrophic water bodies and improving river channels. , landscape waters, and the bottom quality of aquaculture ponds have positive effects. In addition, the fish has a marriage color. During the breeding season,...

AI Technical Summary

Problems solved by technology

[0003] In recent years, factors such as water environmental pollution, artificial overfishing, illegal electricity, explosives, poisonous fish and other factors have seriously affected the natural resources of scallops, and scallops have relatively weak fecundity, and their special reproductive habits (eggs are laid on the gills of mussels) petal) has become a bottleneck in the research of artificial reproduction technology, hindering the development of its follow-up scientific research, ecological and economic value