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Artificial domestication and broodstock culture method of platypharodon extremus

A pharyngeal fish and artificial technology, which is applied in the field of artificial domestication and broodstock cultivation of the larvae, to achieve the effect of restoring the resources of the larvae

Inactive Publication Date: 2011-08-31
GANSU RES INST OF FISHERIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there have been no reports on the artificial domestication and breeding of broodstock

Method used

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  • Artificial domestication and broodstock culture method of platypharodon extremus
  • Artificial domestication and broodstock culture method of platypharodon extremus
  • Artificial domestication and broodstock culture method of platypharodon extremus

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Embodiment Construction

[0011] The following are embodiments of the present invention

[0012] 1. Materials and methods

[0013] 1.1 Source of test fish

[0014] The test fish were collected from the main stream of the Yellow River from Heihekou to Waerhekou (N33°57.805′, E102°07.126′, altitude 3417m). The collection method is to use wooden boats to lower gillnets in the river, and select fishes weighing more than 500g and with light injuries from the catches to transport them to the nearby Maqu Fishing Ground for 7 days, and then transport them to the domestication site for manual cultivation. domesticated.

[0015] 1.2 Domestication location

[0016] Linxia County, Gansu (N35°57.412′, E103°02.487′, 1972m above sea level), 330km away from the collection site. The area belongs to the Daxia River system in the Yellow River Basin.

[0017] 1.3 Domesticated Pond

[0018] 1.3.1 Artificially simulated river course

[0019] The pond is a sandstone bottom pond excavated on the river beach, with an ar...

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Abstract

The present invention discloses an artificial domestication, feeding and broodstock culture method of platypharodon extremus. The method comprises the following steps: carrying out immersion cleaning and disinfection on wild caught adult fish of the platypharodon extremus; then putting into a pond with running water, wherein the pond artificially simulates the natural environment, the water depth is 0.3-0.5cm, the water flow velocity is 0.1-0.2m / s, the pH of a water body is 7.5-8.0, the dissolved oxygen is above 5mg / l, a water source is surface fresh water or underground spring water which is clear and pollution-free, the total alkalinity is not less than 3me / l, and the total salinity is not less than 300mg / l; and dosing natural food into the pond daily in the first 3 months for domestication, dosing hard granular feeds with the particle size of 3-5mm daily in fixed points after 3 months, preventing the increase of water level during the domestication period, further avoiding the fish from escaping and strictly preventing other fish entering into the fish pond.

Description

technical field [0001] The invention relates to a method for artificial domestication and feeding of wild fish and breeding of broodstock, more precisely, a method for artificial domestication and breeding of broodstock of the polar pharyngeal toothfish. Background technique [0002] Platypharodon extremus is a unique monotypic genus in my country. Its taxonomic status: Cypriniformes, Cyprinidae, Schizothoracinae, and belongs to the species that live in alpine regions. , only distributed in the wide valley section of the plateau in the upper reaches of the Yellow River, and its resources once accounted for a large proportion of the indigenous economic fish in the upper reaches of the Yellow River. Due to its small population size, narrow distribution area, short growth period, slow growth rate, late sexual maturity age and other factors, the distribution area has gradually shrunk to the depths of the sparsely populated plateau meadow. Due to the drastic reduction in the resou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A01K63/00A23K1/16
CPCY02A40/81
Inventor 张艳萍秦懿虎永彪娄忠玉焦文龙周蓉杨顺文李文
Owner GANSU RES INST OF FISHERIES
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