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Method for artificial propagation of hybrid pseudobagrus fulvidraco

A technology of artificial breeding and yellow catfish, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of induced labor rate, low fertilization rate and hatching rate, and achieve the effect of improving the reproductive effect

Inactive Publication Date: 2019-04-05
FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the artificial breeding process of hybrid yellow catfish, there are problems such as low induction rate, fertilization rate and hatching rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment one: a kind of method of hybridization yellow catfish artificial propagation

[0023] 1. Source of parents

[0024] The test was carried out at the test base of the Fisheries Research Institute of Anhui Academy of Agricultural Sciences. The broodstock used are all from Lu'an China Resources Breeding Technology Co., Ltd., which are carefully selected after being bred to sexual maturity for the offspring of artificial reproduction. Parents are required to be large (female yellow catfish 80-150 g, male yellow catfish 500-1000 g), free from disease and injury. Female fish require a round and full abdomen, and the genital pores are light red, and signs of egg flow in the abdomen can be observed by standing upside down. Male fish require larger genital protrusions, which are pink in color. The ratio of male and female parents is 250:1.

[0025] 2. Oxytocin and its combination

[0026] Oxytocin for injection includes: Luteinizing hormone releasing hormone A3 (L...

Embodiment 2

[0038]Embodiment two: a kind of method of hybridization yellow catfish artificial propagation

[0039] A method for artificial propagation of hybrid yellow catfish, comprising the following steps:

[0040] Step 1: Parental Selection

[0041] Both the female yellow catfish and the male yellow catfish are artificially bred to sexual maturity, the weight of the female yellow catfish is 80g, and the weight of the male yellow catfish is 500g; The ratio of the number of yellow catfish is 200:1.

[0042] The second step: artificial induction of labor

[0043] When the water temperature in the pool stabilizes above 24°C, artificially induce labor for the female and male peltaceae in the pool; 2 injections are used for the female peltaceae, and the first injection is female oxytocin 40% of the total dosage, the second injection is 60% of the total dosage of oxytocin for female Peltereglossus, the time interval between two injections is 12 hours; one injection for male Peltageye, and...

Embodiment 3

[0051] Embodiment three: a kind of method of hybridization yellow catfish artificial propagation

[0052] A method for artificial propagation of hybrid yellow catfish, comprising the following steps:

[0053] Step 1: Parental Selection

[0054] The weight of female yellow catfish and male yellow catfish is 1000g; the weight of female yellow catfish and male yellow catfish is 1000g. The ratio of the number of yellow catfish is 300:1.

[0055] The second step: artificial induction of labor

[0056] When the water temperature in the pool stabilizes above 24°C, artificially induce labor for the female and male peltaceae in the pool; 2 injections are used for the female peltaceae, and the first injection is female oxytocin 20% of the total dosage, and the second injection is 80% of the total dosage of oxytocin in female Peltereglossus luteus, with an interval of 14 hours between the two injections; 1 injection for male Peltageye crocodile, and the second injection for female Pel...

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Abstract

The invention relates to a method for artificial propagation of hybrid pseudobagrus fulvidraco. The method comprises parent selection and artificial spawning, wherein when the water temperature of a pool stably reaches 24 DEG C or above, artificial spawning is carried out on female pseudobagrus fulvidraco and male pelteobagrus vachelli in the pool; female pelteobagrus fulvidraco is injected twiceat an interval of 12-14 hours; male pelteobagrus vachelli is injected once, the injection of male pelteobagrus vachelli is synchronous with the second time of injection of female pseudobagrus fulvidraco, and the injection amount of male pelteobagrus vachelli is 40-60% of the total oxytocin dosage of female pseudobagrus fulvidraco; after oxytocin is injected, female pelteobagrus fulvidraco and malepelteobagrus vachelli are temporarily cultured in the pool, and the pool is filled with oxygen by an oxygen pump, wherein the oxytocin is a mixture of lutropin releasing hormone, dioxone and chorionic gonadotropin. According to the method, a spawning promoting hormone composition for fishes is used for promoting spawning so that the breeding effect of hybrid pseudobagrus fulvidraco can be obviously improved, the effect time is shortened from 30 hours to 23 hours, and the spawning promoting rate, the fertilization rate and the hatching rate reach 90.0%, 84.7% and 88.9% respectively.

Description

technical field [0001] The invention relates to a method for artificial propagation of hybrid yellow catfish, belonging to the technical field of aquaculture. Background technique [0002] Peeled catfish ( Pelteobagrus vachelli ), yellow catfish ( P. fulvidraco ) all belong to the order Siluriformes, the family Pleuridae, and the genus Pelidae. Because of its high nutritional value and no intermuscular thorns, it is deeply loved by the elderly and children. It is the largest species in the genus Peltaceus, and it has fast growth and strong disease resistance, but it also has the characteristics of intolerance to low oxygen. Pelter catfish mainly lives in relatively closed water bodies such as ponds, reservoirs, and lakes. It has the characteristics of low oxygen tolerance and high egg production, but it also has the characteristics of slow growth and small adult female fish. [0003] In recent years, with the increase of the market demand for yellow catfish, the demand ...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/10A01K61/17Y02A40/81
Inventor 潘庭双江河凌俊段国庆胡玉婷周华兴陈小雷
Owner FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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