Efficient breeding method for Rhodeus sinensis

Abstract

The invention belongs to the field of native fish farming studies, and relates to an efficient breeding method for Rhodeus sinensis. The problems that an existing breeding technology is greatly influenced by seasons, temperature, hydrology and other natural conditions, and the breeding potential is not high are solved. The Rhodeus sinensis is bred ceaselessly in the whole year, and is high in breeding potential and easy to manage, and factory-like breeding can be carried out. The method comprises the steps of domestication breeding of parent fishes and clams, copulation of the parent fishes and offspring seed breeding, and is characterized in that the parent fishes and Unio douglasiae are collected in the field, domestication treatment is carried out for 30 days, female fishes with fallopian tubes extending to be tubular and male fishes with seminal fluid flowing out by slightly pressing the bellies are selected, the female fishes and the male fishes are placed in a specially-made breeding box with the ratio of 3:1, the clams are put in at the same time, the clams are placed in an incubator after 20 days of oviposition, the other batch of clams is placed in the breeding box, the clams in the breeding box are exchanged with the clams in the incubator every 20 days, Rhodeus sinensis offspring seeds in the incubator are collected once every two days and placed in the breeding box to be bred, and normal breeding is carried out when fish fries grow to be 30 mm.

Description

technical field [0001] The invention belongs to the field of native fish breeding research, and in particular relates to the indoor breeding technology of the Chinese bream. Background technique [0002] Rhodeus sinensis, belonging to Cypriniformes (Cypriniformes) Cyprinidae (Cyprinidae) subfamily (Acheilognathinae), is a small benthic fish in the Rhodeus genus (Rhodeus), this species of Rhodeus is widely Distributed in all freshwater basins in China except the Heilongjiang River System, it is a famous native ornamental fish in China. It has high ornamental value and edible value, and the market demand is increasing day by day. In recent years, due to factors such as water pollution and overfishing, many local wild fish species resources have been shrinking, and some species have even become extinct. In order to protect the indigenous fish resources, expand the population of Selina sinensis, and alleviate the contradiction between supply and demand in the market, it is immi...

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Problems solved by technology

[0003] At present, there are few researches on the artificial reproduction of S. sinensis at home and abroad. At present, only Wang Quan et al. have carried out the research on the selection of the size of mussels during the spawning of S. Sinensis and the research on the sexual morphology and female adult fertility of S. Sinensis. ; Shen Jianzhong conducted a preliminary observation of the reproductive habits of Sinensis chinensis. Jiangsu Vocational College of Agriculture and Animal Husbandry Science and Technology has succeeded in the reproduction of Sinensis Sinensis. The rate is increased by nearly 5 times, but it is also an outdoor bionic breeding, which is greatly affected by natural conditions such as seasons, temperature, and hydrology.

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