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The Breeding of Ornamental Oviparous Killifish by Space Mutation

Author: ZhengLeYun
Tutor: WangZhiYong；LinYueZuo
School: Jimei University
Course: Fisheries
Keywords: Medaka fish Space Mutagenesis Breeding
CLC: S965.8
Type: Master's thesis
Year: 2011
Downloads: 18
Quote: 0
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Abstract


This study survived returned by the \equipped with space group medaka fish fertilization rate of eggs in hatching rate , larval fish deformity rate , fry survival , growth rate differences ; experimental group space equipped with the ground control group medaka fish five consecutive generation control nurture , studied two groups medaka fish in the differences in body size, fecundity and egg fertilization rate ; through the establishment of the family , compare the differences in the group of space equipped with ground control group medaka fish pedigree fecundity of spawning a large amount of family space after space flight breeding . The study also observed the impact of different temperatures and different male and female fish with group on the medaka fish spawning and fertilization rate . The specific results of the study are as follows: 1 space equipped with a set of ground control group fertilized egg hatchability , larval malformation rate was no significant difference ; growth rate and individual equipped with a group of male fish were significantly greater than terrestrial group of male fish ( p <0.05 ) ; equipped group, the survival rate is higher than the control group on the ground , a significant difference ( p <0.05 ) ; the space equipped mutagenesis medaka fish egg hatching fry strong resistance , higher survival rates . 5 generation control nurturing results showed F 1 , F 2 generation space equipped with a group of medaka fish into fish males than ground control group , the difference was significant ( p <0.05 ) , F 3 , F 4 F 5 < / sub > generation space equipped with a set of ground control group into the size of the fish males difference ( p > 0.05 ) ; into fish female body size between the two groups of F1 to F5 was no significant difference ( p > 0.05 ) ; equipped with a set of medaka fish fecundity was significantly higher than the the ground control group , the difference was significant ( p <0.05 ) , the eggs fertilization rate was no significant difference ( p> 0.05 ) . 3 different pedigrees the medaka fish spawning amount has a significant difference ( p <0.05 ) , equipped with a group of family fecundity differences greater than ground group . Water temperature of 26 ℃ under the conditions , the highest daily average of medaka fish spawning , fertilization rate , 26 ℃ medaka fish spawning water temperature ; ♂ 1 ♀ , 2 ♂ 1 ♀ , 1 ♂ 1 ♀ of with a group of species of fish daily average fecundity of the largest and highest fertilization rate , medaka fish spawning best equipped group .

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CLC: > Agricultural Sciences > Aquaculture, fisheries > Aquaculture technology > A variety of fish farming > Ornamental fish
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