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Artificial breeding method for yellow barbus capito

A technology of artificial breeding and large barb, applied in fish farming, application, climate change adaptation, etc., can solve the problems of unsuitable artificial breeding technology for yellow large barb, artificial induced spawning rate, low fertilization rate and seedling survival rate, etc. , to achieve the effect of reducing drug resistance and reducing costs

Active Publication Date: 2021-06-04
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for artificial breeding of yellow catfish in order to solve the problems that there is no artificial breeding technology suitable for yellow catfish at present, and the artificial induced labor rate, fertilization rate and seedling survival rate are low

Method used

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  • Artificial breeding method for yellow barbus capito
  • Artificial breeding method for yellow barbus capito
  • Artificial breeding method for yellow barbus capito

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specific Embodiment approach 1

[0019] Specific embodiment one: the present embodiment yellow giant barb artificial breeding method is carried out according to the following steps:

[0020] 1. Breeding of broodstock:

[0021] The broodstock breeding adopts the pond monoculture mode, the stocking density of the broodstock is 200 fish / mu, and the freshwater broodstock is fed with artificial pellet feed, the daily feeding amount is 3% to 5% of the fish body weight, and 2 months before the artificial breeding, the supplementary feed is added every day. Feed animal bait water earthworms once (compared with broodstock without animal bait before induced labor, it can promote gonad maturation by 20% to 30%.);

[0022] 2. Broodstock induced labor:

[0023] In the breeding season from May to June in spring, mature broodstock are selected according to the ratio of 1:1.5-1:2 for male and female for artificial induction, and the dose of oxytocin for female fish is LHRH-A 2 10μg / kg, HCG 150IU / kg, DOM 2mg / kg, half the d...

specific Embodiment approach 2

[0030] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the size of the pond in step 1 is 3-6 mu, the water source is pollution-free, the drainage is convenient, the sunshine is sufficient, the transportation is convenient, and the pond with good power matching conditions . Others are the same as the first embodiment.

specific Embodiment approach 3

[0031] Embodiment 3: This embodiment is different from Embodiment 1 or 2 in that step 2 adopts one injection method, and the injection method is intramuscular injection at the base of the dorsal fin. During the injection, the parent fish does not need to be anesthetized with drugs, and the fish body is lightly held until the base of the dorsal fin is exposed. Water surface for injection. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention belongs to the technical field of aquaculture, and relates to an artificial breeding method for yellow barbus capito. The method aims at solving the problems that no artificial breeding technology suitable for the yellow barbus capito exists at present, and the artificial induced spawning rate, the fertilization rate and the fry survival rate are low. The breeding process comprises five links of parent fish rearing, parent fish spawning induction, natural spawning and fertilization, fertilized ovum circular loop incubation and fry rearing. Through single culture and supplementing water earthworm animal bait, parent fish gonad maturation is strengthened; the dosage of the artificial spawning induction medicine suitable for natural spawning of the parent fish is optimized; the natural spawning rate of the parent fish is increased by utilizing loop water flow stimulation; the flow rate of water flow in a loop and the using time of outer circulation and inner circulation are adjusted, and the hatching rate reaches 72.12%; and by adopting a feeding strategy of controlling dissolved oxygen, bacillus and photosynthetic bacteria in an evaporation pond to adjust water quality and gradually transitioning from natural bait to artificial bait, the survival rate of the fry in the pond reaches 65.33%.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for artificial breeding of yellow barb. Background technique [0002] Giant barb (Luciobarbus brachycephalus) belongs to Cyprinidae, Cyprinidae, and Subfamily Cyprinidae. It is native to the Aral Sea, the southern and western waters of the Caspian Sea. In 2003, the Heilongjiang Fisheries Research Institute introduced it to China from the Aral Sea of ​​Uzbekistan. The trade name is Freshwater cod. On January 09, 2018, the invention patent with the authorization number CN105409857B and the title "A Method for Seed Production of Pure Line Yellow Chinfish" was collected from natural waters and cultivated from wild silver-gray squid until the gonads matured. Finally, individuals of yellow barb were obtained. This patent discloses the germplasm source of the yellow barb, and does not involve artificial breeding methods. The yellow barb is a homozygote of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/10A01K61/17Y02A40/81
Inventor 耿龙武徐伟
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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