Artificial breeding method for Acrossocheilus fasciatus

Abstract

The invention discloses an artificial breeding method for Acrossocheilus fasciatus, comprising the following steps: strengthening parent fish, spawning, collecting eggs, hatching and growing seedlings; accelerating maturity by utilizing granulated feed, wherein the content of the crude protein in the granulated feed is high; strengthening by utilizing granulated feed added with vitamin E, wherein the content of the crude protein in the granulated feed added with vitamin E is high; when water temperature is not lower than 22DEG C, accelerating oviposition by hastening parturition micro water changed once every 12 hours and a sand table; taking out of the sand table after the eggs are fertilized for 1-1.5 hours; when the water temperature is 23-25DEG C and the flow rate is 8-10 hours, replacing water once; hatching without direct irradiation of sunlight; when the water temperature is 22-25DEG C and the flow rate is 10-12 hours, replacing water once; and mixing an earthworm pulp serving as an opening bait with a powdery feed, and feeding. By utilizing the method provided by the invention, after artificial propagation, less parent fish die, and the parent fish can be repeatedly propagated; the oviposition rate can reach 70-85%, the hatching rate is 50-70%, and the fish fry survival rate can reach 60-80%; and great quantity of fish fries can be obtained, and seedling protection is provided for large-scale artificial breeding.

Description

technical field [0001] The invention relates to the breeding technology of freshwater fish, in particular to an artificial breeding method of bald-lipped fish. Background technique [0002] The light-lipped fish (Acrossocheilus fasciatus) belongs to Cyprinidae, Cyprinidae, Subfamily Acroptidae, and the genus Acrossocheilus fasciatus. It is mainly distributed in Zhejiang, Jiangsu, Anhui, Fujian, Jiangxi and other places in my country. It lives in mountain streams and the middle and upper reaches of rivers and other rapids. In the environment, it likes to inhabit gravel or sandy bottoms and rivers with clear water and rapid flow. It lays eggs when the water temperature is 18-27°C. The spawning season is generally from May to August, and the peak breeding period is from June to July. It is a rare and valuable economic fish in streams, which is of great development and utilization value; however, due to the gradual deterioration of environmental conditions, the number of wild ligh...

AI Technical Summary

Problems solved by technology

[0002] The light-lipped fish (Acrossocheilus fasciatus) belongs to Cyprinidae, Cyprinidae, Subfamily Acroptidae, and the genus Acrossocheilus fasciatus. It is mainly distributed in Zhejiang, Jiangsu, Anhui, Fujian, Jiangxi and other places in my country. It lives in mountain streams and the middle and upper reaches of rivers and other rapids. In the environment, it likes to inhabit gravel or sandy bottoms and rivers with clear water and rapid flow. It lays eggs when the water temperature is 18-27°C. The spawning season is generally from May to August, and the peak breeding period is from June to July. It is a rare and valuable economic fish in streams, which is of great development and utilization value; however, due to the gradual deterioration of environmental conditions, the number of wild light lipped fish has declined sharply, and the number of breeding parents has become increasingly rare, and some waters have even been unable to form breeding groups

At present, most of the seedlings cultured by bald-lipped fish are collected from natural streams. Although there are studies on the use of oxytocin for artificial induced production, they are only limited to the experimental research stage, and about 50% of the broodstock die after induced production, so it is impossible to form a production application. A complete set of techniques for the breeding of light lipped fish fry