Cultivation method for brachymystax lenok fry

A breeding method, the technology of leprosy salmon, which is applied in the field of germplasm resources protection of endangered wild animals, can solve the problems of slow growth and high mortality, and achieve the effect of reducing the deformity rate of seedlings and increasing the hatching rate

Active Publication Date: 2016-05-11
YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] In view of the problems referred to above, the purpose of the present invention is to provide a method for cultivating Qinling leonoma seedlings, which overcomes the problems of high mortality and slow growth rate in the artificial culture environment of Qinling lelon salmon, and greatly improves the growth rate of Qinling lelon salmon. The hatching rate of fertilized eggs, the growth rate and survival rate of offspring fish; the offspring fish are robust and well-proportioned, have strong environmental tolerance and disease resistance, and greatly reduce the occurrence of deformities

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  • Cultivation method for brachymystax lenok fry

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Embodiment 1

[0048] A kind of cultivation method of Qinling lentil salmon seed, adopts the following steps:

[0049] (1) Artificial hatching: From April 9th ​​to 14th, 2013, the fertilized eggs of Qinling salmon were artificially stimulated in the Xianyiguan Protection Station of the National Qinling Salmon Nature Reserve in Longxian County, Shaanxi Province. More than 15000 grains. Use mountain water and artificial deep wells for water temperature regulation; introduce mountain water into the 50m 3 The sedimentation tank is then introduced into 20m 3 At the same time, the well water is injected into the reservoir, and the temperature regulation is completed by controlling the flow of the well water in real time. When the dissolved oxygen is lower than 8mg / L, the aeration pump is used to increase oxygen in the reservoir and increase the water flow at the same time. During the hatching of fertilized eggs, the water temperature is maintained at 10 or 11 or 12°C, the dissolved oxygen is at...

Embodiment 2

[0057] A kind of cultivating method of Qinling lentil salmon seed, adopts the following steps:

[0058] (1) Artificial hatching: From April 16th to May 18th, 2014, in the Baiyunxia base of the Wildlife Protection Station in Taibai County, Shaanxi Province, artificial induction of Qinling leptospirosis was carried out, and more than 55,000 fertilized eggs of Qinling leptospirosis were obtained. Use river water and artificial wells to control water temperature, and introduce river water into 100m 3 The sedimentation tank is then introduced into 15m 3Inject well water into the reservoir at the same time, and increase or decrease the flow of well water to complete temperature control. When the dissolved oxygen is lower than 8mg / L, the aeration pump is used to increase oxygen in the reservoir and increase the water flow at the same time. During the hatching of fertilized eggs, the water temperature is maintained at 10 or 11 or 12°C, the dissolved oxygen is at 8.05 or 8.15 or 8.25...

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Abstract

The invention discloses a cultivation method for brachymystax lenok fry. The cultivation method includes the steps of A, artificial incubation; B, fry opening feeding; C, transferring out of an incubation tank for cultivation, and stocking at reasonable density; D, pool dividing domestication, wherein palatable bait is selected, food domestication control is conducted, and meanwhile scientific daily management and disease prevention are conducted. According to the biological characteristics of brachymystax lenok, total artificial regulation is conducted on the aspects of water temperature, illumination, dissolved oxygen and the like, the advantages that the physiques of the fry are healthy, strong and balanced, the bait utilization rate is high, environmental tolerance is high, and disease resistance is high are achieved by means of food intake regulation and standard management, and the fertilized ovum hatching rate of the brachymystax lenok and the growth rate and survival rate of offspring fishes are greatly increased. The offspring fishes are healthy, strong and balanced, high environmental tolerance and disease resistance are achieved, and occurrence of malformation is greatly reduced. The method is simple, high in operability, good in practical applicability and completely suitable for large-scale production of the fry, and is used for species resource protection and natural population restoration of the brachymystax lenok accordingly.

Description

technical field [0001] The invention belongs to the technical field of protection of germplasm resources of endangered wild animals, and more specifically relates to a method for cultivating Qinling salmon seedlings, which is suitable for natural population restoration and artificial conservation of Qinling salmon. Background technique [0002] Qinling fine scale salmon (Brachymystaxlenoktsinlingensis), commonly known as flower fish, five-color fish, plum blossom fish, belongs to Saloniformes (Saloniformes) and Salmonidae (Salmonidae), is a land-enclosed cold-water fish endemic to my country and locally distributed. The distribution range of Qinling lentinus is extremely narrow, the habitat water conditions are strict, and the natural population is scarce. It is only distributed in the Heihe River at the east foot of the Taibai Mountain Peak in the Qinling Mountains, the Shitou River at the north foot, the Yushui River and Taibai River at the south foot, and the tributaries o...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K50/80A23K10/20
CPCA01K61/00Y02A40/81
Inventor 邵俭危起伟王丰郭威吴金明
Owner YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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