42 results about "Erythroculter ilishaeformis" patented technology

The invention discloses a breeding method for distant hybridization between erythroculter ilishaeformis and ancherythropterus nigrocauda. The method includes the following steps: 1) selecting selectively-bred erythroculter ilishaeformis and selectively-bred ancherythropterus nigrocauda as parents; 2) conducting parents strengthening breeding including erythroculter ilishaeformis strengthening breeding and ancherythropterus nigrocauda strengthening breeding; 3) conducting artificial spawning induction: respectively injecting spawning induction medicine hypophysis cerebri or dopamine antagonist DOM, lutein releasing hormone analogue and chorionic gonadotropin which are used singly or in mixing mode on the two parents; 4) conducting artificial semen and spawn collection and insemination including dry method insemination and semi-dry method insemination; and 5) conducting artificial incubation. Hybridized culter 'vanguard 1' obtained by distant hybridization has the advantages of good body type and large size of the erythroculter ilishaeformis, also has the advantages of low breeding cost, mild temper, easiness in catching and easiness in live marketing of the ancherythropterus nigrocauda and further has excellent hybridization performances like high growing speed.

The invention discloses a low salinity mixed culture method of Pelteobagrus fulvidraco. A stocking method includes: stocking Erythroculter ilishaeformis under 800/mu in late February, stocking Pelteobagrus fulvidraco under 500/mu in middle March, stocking Micropterus salmoides under 300/mu in middle May, stocking Pelteobagrus fulvidraco under 200/min in early June, fishing with netting from late July by capturing large fishes and omitting small fishes until all are captured for sales in December. Compared with the prior art, the invention has the following advantages: the method is reasonably planned, pond space may be fully utilized, corresponding nutrition may be supplemented just by consuming residual feed of Erythroculter ilishaeformis or Micropterus salmoides according to the feature that Pelteobagrus fulvidraco is omnivorous, disease resistance of the fishes cultured is improved and a water changing period is prolonged through improving the water quality and using low salinity pond water, multiple fishing may reduce pond stock rate and facilitate culturing management so that the stocked fishes can grow fast and high specification is obtained, the economic value is high, and culturing cost is saved.