Heat-shock and static water-pressure type method for prodn. of tetraploid of trout

A hydrostatic pressure and heat shock technology, applied in fish farming, medical science, animal delivery, etc., can solve the problems of germplasm impurity and low survival rate, and achieve the effect of simplifying production technology

Inactive Publication Date: 2006-11-15
白宝海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the problems of germplasm impurity and low survival rate in the breeding process of triploid fry in actual production, the present invention provides a new fish breeding approach

Method used

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  • Heat-shock and static water-pressure type method for prodn. of tetraploid of trout
  • Heat-shock and static water-pressure type method for prodn. of tetraploid of trout
  • Heat-shock and static water-pressure type method for prodn. of tetraploid of trout

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Embodiment Construction

[0011] In Figures 1, 2, and 3, the fuel enters from the fuel-adding inlet (1), and the combustion capacity heats up the water to a temperature of about 40°C (2). Lead the conduit (4) into the water tank (8), mix the 15°C cold water introduced by the cold water inlet conduit (5), adjust the water temperature to 30°C (6), adjust the water outlet pipe (7) through the water volume adjustment tap (8 ) into the hot water regulating pool (11), and the fertilized eggs are put into a parallel hatching tank (9) for shock treatment.

[0012] In Fig. 4, put into hydrostatic pressure after putting into fertilized egg with plastic tube in the fertilized egg action device (14), hydrostatic pressure generator (12) produces hydrostatic pressure, is transported by hydrostatic pressure conduit (13) Transfer to the fertilized egg action device, and shock the fertilized egg.

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Abstract

A method for inducing the tetraploid salmoniform rainbow trout by hot shock or static water pressure process features that the fertilized ova of rainbow trout is treated by hot shock at 30 deg.C for 5-6 min or static water pressure under 600-650 kg / sq.cm for 5-6 min.

Description

technical field [0001] The invention can produce tetraploid populations of freshwater cold-water fishes, including rainbow trout, golden trout, Atlantic salmon and American char. When tetraploid broodstock is crossed with normal diploid, 100% triploid fish can be obtained. Background technique [0002] Currently, triploid freshwater cold-water fish are induced by chemical methods, heat shock or hydrostatic pressure, but none of them can obtain 100% triploid fry, which needs to be identified and screened, with heavy workload and low accuracy. High, and the fry survival rate is low in the breeding process. Contents of the invention [0003] In order to overcome the problems of germplasm impurity and low survival rate in the breeding process of triploid fry in actual production, the invention provides a new fish breeding approach. Both heat shock and hydrostatic pressure methods can be used to obtain fish tetraploid populations, which can be crossed with common diploids to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61D19/00A01K63/00A01K67/00
Inventor 白宝海邱黎明刘东
Owner 白宝海
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