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Cultivating method of Gymnocypris przewalskii spring fingerlings

A breeding method and technology of fish species, applied in the cultivation field of Qinghai Lake naked carp spring fillet fish species, can solve the problems of ecological environment naked carp resource depletion, unfavorable ecological balance, endangering the survival of aquatic organisms, etc., and achieve a good economic and social environment Ecological benefits, the effect of protecting germplasm resources

Inactive Publication Date: 2011-09-21
史建全
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

The destruction of the fishery ecological environment in Qinghai Lake will directly lead to the depletion of naked carp resources, which will have an extremely adverse impact on the existing ecological balance and thus endanger the survival of other aquatic organisms in the lake

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. The change of feeding point: After winter management, after the ice melts, the naked carp in Qinghai Lake will be cultivated in the original pond after spring, and the feeding point will be moved to the side of the pond, and it will be fed at a fixed point every day;

[0026] 2. Water quality management: After winter, the water temperature rises, which is a good time for the growth of germs. At this time, water quality control should be strengthened, and 10 kg of quicklimed water per mu should be sprinkled all over the pool, once every half a month in March, and every 4-5 months Once a month, 55% of the old water in the pool is pumped out in April, and new water is added;

[0027] 3. Feeding method: Feed a small amount of powder or pellets at the feeding point first, twice a day. After a week, most fish will be attracted to the feeding point for feeding. The amount of feeding can be increased. The protein content of the bait used The content is not less than 34%. In ...

Embodiment 2

[0030] 1. Change of feeding point: After winter management, after the ice melts, Qinghai Lake naked carp spring fillet species will be cultivated in the original pond after spring, and the feeding point will be moved to the side of the pond, and fixed-point, quantitative, and regular feeding every day;

[0031] 2. Water quality management: After winter, the water temperature rises, which is a good time for the growth of germs. At this time, water quality control should be strengthened, and 14 kg of quicklimed water per mu should be sprinkled all over the pool, once every half a month in March, and every 4-5 months once a month. In April, 75% of the old water in the pool was pumped out and new water was added;

[0032] 3. Feeding method: first use powder or pellets to feed a small amount at the feeding point, 4 times a day. After a week, most fish will be attracted to the feeding point for feeding, and the amount of feeding can be increased. The protein of the bait used The co...

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Abstract

The invention belongs to the technical field of cultivation of Gymnocypris przewalskii, and in particular relates to a cultivating method of Gymnocypris przewalskii spring fingerlings. The scheme of the method comprises the four steps of changing feeding points, managing water quality, using a feeding method and cultivating spring fingerlings. Until June, the cultivated spring fingerlings can reach 9-11 cm in size and 7.0-8.0 g in weight, are 1+ age Gymnocypris przewalskii spring fingerlings, can be purchased or proliferated for releasing and can also enter the 2+ age fingerling cultivation stage. The method provides powerful support for the cultivation of Gymnocypris przewalskii, the germ plasm resource protection of Gymnocypris przewalskii, satisfaction of the market demand of Gymnocypris przewalskii, and the cultivation of Gymnocypris przewalskii in fresh water of cold areas. The method has the advantages that: being different from the cultivation modes of spring fingerling breeding of other cultured fishes, cultivation in the original pond is adopted; the strongly-cultivated fingerlings have high survival rate and less diseases; and simpleness and convenience for operation and labor saving are achieved.

Description

[0001] One: technical field: the invention belongs to the technical field of Qinghai Lake naked carp breeding fish species cultivation, and in particular relates to a method for cultivating Qinghai Lake naked carp spring sliced ​​fish species. Two: background technology: [0002] The naked carp in Qinghai Lake is the only aquatic animal in Qinghai Lake. It is at the core of the "fish-bird symbiosis" ecosystem in Qinghai Lake. In 1964, it was listed as an important or rare aquatic animal in my country by the Ministry of Fisheries. In 2004, it was listed as an endangered species in the "Red List of Species in China" by the China International Cooperation Committee for Environmental Development. [0003] Since the 1970s, due to the drought and warming of the climate, the inflow of rivers has dropped sharply, overfishing, and the spawning grounds have dried up, resulting in a serious decline in the resources of naked carp. In 1995, the Buha River, the largest river entering Qinghai...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 史建全
Owner 史建全
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