A method for crossbreeding golden-thread barb and crucian carp in Dianchi Lake
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A technology for golden-threaded barb and crucian carp, applied in fish farming, application, climate change adaptation, etc., can solve the problems of no research reports on cross-breeding, ensure fertilization rate and survival rate, reduce breeding costs, and improve gamete quality Effect
Active Publication Date: 2022-06-07
KUNMING INST OF ZOOLOGY CHINESE ACAD OF SCI
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Problems solved by technology
At present, there is no research report on the hybrid breeding of the relatively distant barb subfamily (Chrysopinae genus) and Cyprininae (Curucian carp genus)
Method used
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Effect test
Embodiment 1
[0084] 1. Build a breeding system
[0085] Dianchi golden thread barb male breeding system:
[0086] Establish a broodstock breeding pond. The parameters of light, water temperature, water flow intensity and water quality conditions in the breeding pond can be adjusted according to the seasonal rhythm, that is, from December to March of the following year, the temperature is controlled at 14 ℃, and the flow rate is controlled at 15cm / s , the dissolved oxygen is controlled at 7.0mg / L, the pH value is controlled at 8.5; from April to July, the temperature is controlled at 20°C, the flow rate is controlled at 8cm / s, the dissolved oxygen is controlled at 7.5mg / L, and the pH value is controlled at 7.6 ; From August to November, the temperature was controlled at 19°C, the flow rate was controlled at 10cm / s, the dissolved oxygen was controlled at 6.5mg / L, and the pH value was controlled at 7.9.
[0087] Crucian carp female fish breeding system:
[0088] Establish broodstock breedin...
Embodiment 2
[0114] 1. Build a breeding system
[0115] Dianchi golden thread barb male breeding system:
[0116] Establish a broodstock breeding pond. The parameters of light, water temperature, water flow intensity and water quality in the breeding pond can be adjusted according to the seasonal rhythm, that is, from December to March of the following year, the temperature is controlled at 16 ℃, and the flow rate is controlled at 19 cm / s , the dissolved oxygen is controlled at 7.9mg / L, the pH value is controlled at 8.5; from April to July, the temperature is controlled at 22°C, the flow rate is controlled at 8cm / s, the dissolved oxygen is controlled at 7.5mg / L, and the pH value is controlled at 7.6 ; From August to November, the temperature was controlled at 18°C, the flow rate was controlled at 10cm / s, the dissolved oxygen was controlled at 7.5mg / L, and the pH value was controlled at 7.9.
[0117] Crucian carp female fish breeding system:
[0118] Establish broodstock breeding ponds. T...
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Abstract
The invention provides a method for hybridizing golden thread barb and crucian carp in Dianchi Lake, which belongs to the technical field of aquaculture; the method includes broodstock cultivation, artificial insemination, fish egg hatching and fry rearing, and the present invention strictly controls the broodstock breeding environment parameters and feed types , to simulate good living conditions for the male golden-haired barb and female crucian carp in Dianchi Lake, which is conducive to the quick adaptation of the male golden-haired barb and female crucian carp in Dianchi Lake to the artificial breeding environment, and at the same time avoid the use of oxytocic agents to achieve natural sperm production in artificial environment Oviposition, to provide quality and quantity of eggs and sperm for artificial hybridization, and also limit the key parameters during incubation (including hatching water level, water temperature, water flow rate, pH value, dissolved oxygen, and disinfection of fertilized eggs, etc.), for the fertilized eggs Provide suitable environmental conditions for smooth hatching. The method cultivates a new hybrid variety with high meat yield, good taste, high meat quality and convenient large-scale breeding for the bulk freshwater aquatic products market.
Description
technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for the hybridization of Dianchi golden barb and crucian carp. Background technique [0002] Sinocyclocheilus grahami belongs to the order Cypriniforms, Cyprinidae, Barbinae and Sinocyclocheilus, also known as goldfish. Dianchi golden thread barb has the characteristics of tender meat and delicious taste, and has the effect of nourishing yin and regulating yuan, warming kidney and filling essence. Therefore, the Dianchi golden thread barb is listed as the "Four Famous Fish in Yunnan" together with the big head carp, Dali bowfish and Kanglang fish, and the Dianchi golden thread barb tops the list. Dianchi golden thread barb is rich in DHA, the content is 7 times that of grass carp and 2.4 times that of carp, which is the highest DHA content among freshwater fish. Crucian carp is a common aquaculture fish. It is widely cultivated in various water bodies b...
Claims
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