Sebastes schlegeli artificial squeezing fry breeding method

A kind of larvae and artificial technology, which is applied in fish farming, application, climate change adaptation, etc., to achieve the effects of improving use efficiency, easy to deploy ponds, and shortening production time

Inactive Publication Date: 2016-04-20
MARINE BIOLOGY INST OF SHANDONG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for artificially squeezing larvae breeding method of P. xushi. The present invention can regulate the number of larvae according to the pr

Method used

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Effect test

Embodiment

[0023] On May 15, 2015, at Xinhui Aquatic Nursery Company in Rizhao City, Shandong Province, the above-mentioned method was used to carry out artificial fish breeding of Xu's flat scorpionfish, and 20 broodstock with mature gonads (♀, fertilized) were selected, and indoors with shelters were used. Flowing water culture in cement ponds, changing water every day to keep the water quality fresh, feeding broodstock fresh or frozen small miscellaneous fish, small miscellaneous shrimp and artificial compound feed; breeding density 5-10kg / m 3 , continuously inflated, light 200Lux, water temperature maintained at 19.0 ℃. On the afternoon of May 24th, 10 female fish in labor were selected for an artificial fish squeeze and larva resurrection. The revived larvae were placed in separate breeding ponds, with about 150,000 fish, and they were evenly arranged in 3 breeding ponds. The water temperature conditions were controlled. At 19.0±0.1°C. At 8:00 p.m., we started feeding Brachionus ru...

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PUM

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Abstract

The invention discloses a sebastes schlegeli artificial squeezing fry breeding method, and belongs to the technical field of fry breeding. The method comprises parent selection, indoor temporary breeding, artificial fish squeezing, fry resurgence and fry breeding; the artificial fish squeezing comprises the following steps: selecting parturient female fishes, wrapping fish bodies with cloth-like objects wetted by seawater, covering eyes of the female fishes, and slightly squeezing abdomens of the fishes towards genital pores in order that mature fries slowly flow into a prepared water container; slightly squeezing the abdomens of parent fishes, and stopping squeezing fries after the flow speed of the fries decreases, putting the parent fishes back into a pond, and squeezing the fries 2-4 hours later according to a production requirement. By adopting the method, the quantity of fries can be regulated and controlled according to production, and the problems of dystocia, abortion and the like of the parent fishes reproducing for the first time are solved. The method has important significance to the reduction of artificial operation inconvenience and control on the culture pond density.

Description

technical field [0001] The invention relates to the technical field of fish seedling breeding, in particular to a breeding method for artificially squeezed larvae of the genus Xu's. Background technique [0002] Sebastesschlegeli, formerly known as black scorpion, belongs to the genus Sebastesschlegeli of the order Scorpionidae, and reproduces viviparously with eggs. Widely distributed in the temperate waters of the northern hemisphere, it is a common economic fish in the Yellow and Bohai Seas of my country. Xu's flat carp generally gives birth around 23:00 to 2:00 in the morning; in the process of artificial breeding, the broodstock will be aborted due to external interference when giving birth, which will affect the quality of the larvae; the maturation of the female fish is not synchronized and The fish are produced in batches; the newly produced larvae are delicate, and they are easy to be injured and die when they are attached to the net. Therefore, it is difficult to...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 于道德王友红官曙光刘洪军
Owner MARINE BIOLOGY INST OF SHANDONG PROVINCE
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