Schizothorax waltoni fertilized egg incubating method

A technology of fertilized eggs and Schizothorax, which is applied in the field of hatching fertilized eggs of Lhasa Schizothorax, can solve the problems of slow hatching turnover of fertilized eggs, consuming manpower and financial resources, and few hatching batches, so as to save manpower and financial resources, reduce manpower input, The effect of saving hatching space

CN110521643AActive Publication Date: 2019-12-03西藏自治区农牧科学院水产科学研究所
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-12-03

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Abstract

The invention provides a schizothorax waltoni fertilized egg incubating method. Before reaching the sarcomere appearing stage, fertilized eggs are placed in an incubating frame to be incubated in flowing water; after the fertilized eggs grow to the sarcomere appearing stage, dead eggs are removed, and the fertilized eggs are moved into a fish egg incubator to be incubated. In combination with thecharacteristics of the schizothorax waltoni fertilized eggs in the sensitive period, incubating is conducted in different stages, labor input is effectively reduced, and the method is suitable for large-scale artificial propagation of schizothorax waltoni.
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Description

technical field

[0001] The invention belongs to the technical field of fish culture, and in particular relates to a method for hatching fertilized eggs of Schizothorax Lhasa. Background technique

[0002] Lhasa Schizothorax, commonly known as Lhasa Bowfish, is only distributed in the middle and upper reaches of the Yarlung Zangbo River and its affiliated water bodies. It has few resources, slow growth, and late sexual maturity. It is an endemic species in my country and is also the main economic One of the fish. Affected by tradition and religion, Tibetans do not eat fish. At present, there are still a certain number of Schizothorax in Lhasa. However, since the 1950s, a large number of foreign populations have entered Tibet for development, and the fishing intensity has continued to increase. Especially in recent years, with the improvement of people's living standards, eating "plateau fish" has become a fashion in many places; Lhasa The demand for Schizothorax is growing r...

Examples

Embodiment 1

[0045] A method for hatching fertilized eggs of Schizothorax Lhasa, from the fertilized eggs to the sarcomere appearance stage, the fertilized eggs are placed in the hatching frame for hatching; after the fertilized eggs develop to the sarcomere appearance stage, the dead eggs are removed, and the fertilized eggs are moved into Hatch in a fish egg incubator.

Embodiment 2

[0047] A method for hatching fertilized eggs of Schizothorax Lhasa, from the fertilized eggs to the sarcomere appearance stage, the fertilized eggs are placed in the hatching frame for hatching; after the fertilized eggs develop to the sarcomere appearance stage, the dead eggs are removed, and the fertilized eggs are moved into Hatch in a fish egg incubator.

[0048] The sarcomere emergence period refers to the water temperature of 12° C., 95 hours after fertilized eggs are obtained.

Embodiment 3

[0050] A method for hatching fertilized eggs of Schizothorax Lhasa, from the fertilized eggs to the sarcomere appearance stage, the fertilized eggs are placed in the hatching frame for hatching; after the fertilized eggs develop to the sarcomere appearance stage, the dead eggs are removed, and the fertilized eggs are moved into Hatch in a fish egg incubator.

[0051] The sarcomere emergence period refers to the water temperature of 16° C., 56 hours after the fertilized egg is obtained.

[0052] During the whole hatching process, the hatching of the hatching frame accounts for 27% of the time, and the hatching of the fish egg incubator accounts for 73% of the time.