A artificial fecundation method for siberian sturgeon and hatching arrangement

Abstract

The invention provides an artificial Siberian sturgeon propagating method and a hatch device. The artificial propagating method includes six steps of selecting parent sturgeon, parent sturgeon breeding, artificial parturition facilitating, artificial fertilization, hatch and fry breeding. Lowering the water temperature artificially when breeding the parent sturgeon and injecting sturgeon pituitary can stimulate the gonad of the parent sturgeon to grow mature in advance. Artificial fertilization, hatch and fry breeding can solve the influence of limitation of the season and region on the Siberian sturgeon, and then the fine fry of the Siberian sturgeon can be provided stably and continuously to meet the available requirement for the fine sturgeon fry from the culturist all through the year. The hatch device includes a water providing pipe, a water inlet pipe and a water distributing pipe. An overflow opening is also arranged on the upside of the fry collecting pipe hatch bottle parallel arranged on the edge of the hatch bottle, a temporary feeding pond is arranged on the bottom of the lower end of the fry collecting pipe. The hatched fry can enter into the fry collecting pipe through the overflow opening, and then enter into the temporary feeding pond, and then the automatic fry collecting effect is realized, the invention dispenses with manual collecting as well as lowers the labor intensity greatly.

Description

technical field [0001] The invention relates to a fish breeding technology, in particular to a Siberian sturgeon artificial breeding method and hatching device. Background technique [0002] Siberian sturgeon is a rare and valuable economic fish with fresh and tender meat and rich nutrition, so it is deeply loved by the masses. However, Siberian sturgeon mainly inhabits Siberian rivers, and the resources of wild Siberian sturgeon in my country are limited. In order to meet the needs of the people, artificial breeding of Siberian sturgeon is urgently needed. However, the existing fish artificial breeding technology can only be artificially fertilized by extracting ovum and sperm during the breeding period of natural sexual maturity every year, and then the fertilized eggs are placed in an incubator to hatch, as in the invention patent of CN 1353927, The artificial breeding environment of giant salamander is similar to its natural breeding environment; existing fish hatching ...

AI Technical Summary

Problems solved by technology

During the hatching process using this kind of hatching equipment, if the egg puller is not in place, the fish eggs are easily deposited in the egg holding tank, resulting in hypoxia and turning into dead eggs; the collection of fry must be manually fished out from the egg holding tank , the workload of harvesting seedlings is very large; this kind of equipment has a complex structure, takes up a large space, and the complete set of equipment is made of stainless steel, so the cost is very high, and this artificial breeding technology is only limited to the north, and the water temperature in the south at this time can no longer Meet the requirements for hatching

Therefore, the existing Siberian sturgeon artificial seed hatching technology cannot meet the market's demand for fry due to seasonal and geographical restrictions.

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