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Symphsodon discus breeding and fish larvae culturing method

A technology of seven-color angelfish and breeding method, which is applied in the field of breeding of seven-color angelfish and breeding of larvae and juveniles, which can solve the problems of no uniform standard for breeding methods, uneven quality of larvae and juveniles, and slow growth, so as to improve the survival rate , low cost, and the effect of promoting rapid growth

Inactive Publication Date: 2014-03-05
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the different levels of farmers, there is no uniform standard for breeding methods, resulting in uneven quality of the bred larvae and slow growth. If the breeding is not done properly, it will cause a large number of larvae to die

Method used

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  • Symphsodon discus breeding and fish larvae culturing method
  • Symphsodon discus breeding and fish larvae culturing method
  • Symphsodon discus breeding and fish larvae culturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0058] Carry out the breeding of seven-colored angelfish and the culture of juvenile fish with the aforementioned method: the lower body length of the larvae is 13.35±3.21mm, and the body weight is 0.24±0.09g. After feeding Artemia nauplii for 18 days, the average body length was 25.12±5.36mm, and the average body weight was 0.81±0.25g. Afterwards, they were fed with frozen Daphnia spinosa. After 20 days, the average body length was 56.67±10.36mm, and the average weight was 7.18±1.76g. Then switch to feeding artificial bait. When juveniles grow into juveniles, the feeding amount of artificial bait is increased to 4%-5% of juvenile body weight until adult fish are raised. Feeding biological bait and artificial bait alternately in this way is beneficial to the growth and development of larvae and juvenile fish, and improves the disease resistance and survival rate of larvae and juvenile fish. The survival rate of small fish raised by this method is 95.8%. The nutritional needs ...

Embodiment 2

[0060] Carry out the breeding of seven-colored angelfish and the culture of juveniles with the aforementioned method: the length of the lower body of the larvae is 12.87±3.69mm, and the body weight is 0.22±0.09g. After feeding Artemia nauplii for 20 days, the average body length was 26.45±6.13mm, and the average body weight was 0.89±0.31g. Afterwards, they were fed with frozen Daphnia spinosa. After 20 days, the average body length was 58.43±11.58mm, and the average weight was 8.46±2.39g. Then switch to feeding artificial bait. When juveniles grow into juveniles, the feeding amount of artificial bait is increased to 4%-5% of juvenile body weight until adult fish are raised. Feeding biological bait and artificial bait alternately in this way is beneficial to the growth and development of larvae and juvenile fish, and improves the disease resistance and survival rate of larvae and juvenile fish. The survival rate of small fish raised by this method is 94.9%. The nutritional nee...

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Abstract

The invention relates to a symphodon discus breeding and fish larvae culturing method. The method includes the stages of fish larvae culturing, juvenile fish culturing and artificial bait culturing. By means of control of the variety of fed biological bait, feeding times, feeding time and water body culture conditions of a parent fish egg laying vat and a juvenile fish culture vat, requirements of fish larvae growth for water quality and nutrition can be effectively met, the survival rate of the fish larvae is improved, quick growth of the fish larvae is promoted and economic efficiency is increased.

Description

technical field [0001] The invention relates to a breeding method for seven-color angelfish and a breeding method for larvae and juvenile fish, and belongs to the field of ornamental fish breeding. Background technique [0002] Discus belongs to Perciformes, Percoidei, Cichlidae, Symphysodon, and is native to the Amazon Basin. After several generations of artificial improvement, many new species have evolved, which are sought after by the majority of enthusiasts and known as the king of tropical ornamental fish. Moreover, the discus fish trade is spread all over the world, especially in Southeast Asia, which is an important part of the ornamental fish trade. In recent years, there have been many domestic farmers, mainly distributed in Shanghai, Guangzhou, Liaoning and other places. The parent fish of the Seven-colored Fairy have the behavior of feeding young. The larvae that enter the flat swimming stage use the mucus on the surface of the parent fish as opening bait, and ...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 陈再忠于永亮张帅
Owner SHANGHAI OCEAN UNIV
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