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Screening and cultural method for initial feed bestiolina similis of ocean fancy fishes

A technology of imitating Daphnia dwarfia and opening bait, which is applied in animal husbandry and other fields, and can solve the problem of few small copepods

Inactive Publication Date: 2015-10-28
XIAMEN UNIV
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AI Technical Summary

Problems solved by technology

In general, there are very few research reports on the cultivation of small copepods in marine ornamental fish openings

Method used

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Embodiment 1

[0016] The species selected is Bestiolina similis, which belongs to the order Calanoida, the family Paracalanidae, and the genus Bestiolina. Under optimal conditions, the reproductive cycle of Daphnia pseudolongzhe is 7 days. The body length distribution of different developmental stages of this species is as follows: nauplius 70-260 μm, copepod 350-630 μm, adult 650-700 μm.

[0017] Training method:

[0018] Cultivate indoors using glass fiber reinforced plastic or polycarbonate resin water tanks with a capacity of 500-1000L, and heating rods are equipped in low water temperature seasons. The seawater temperature is 22-28°C, the salinity is 25-30‰, the light is 700-800 lux, and the photoperiod is 12L:12D. Keep slightly aerated throughout the culture. During the cultivation process, different microalgae were mixed and fed every day, and the amount of feeding was determined according to the biomass of Daphnia pseudolongitum for each culture. At the beginning of inoculation,...

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Abstract

The invention provides a screening and cultural method for an initial feed bestiolina similis of ocean fancy fishes, and relate to living food culture. The method comprises: using a 500-1000 L glass fiber reinforced plastic or polycarbonate resin water tank as a culture container, culturing indoors, ocean temperature being 22-28 DEG C, salinity being 2.5-3 %, illuminance being 700-1000 lux, photoperiod being 12L:12D, and maintaining micro inflation; feeding different microalgaes in a mixed manner every day, in inoculation, feeding isochrysis (30,000 cell / mL) and tetraselmis (3000 cell / mL) in a mixed manner every day; in a medium-term, adding to feed pavlova viridis (40,000 cell / mL); when culture density of the bestiolina similis reaches 3000 individuals / L, the number of bait is doubled than the number in the medium-term; siphoning residual feed and faeces every day, and collecting part of nauplius and copepodite as the initial feed of ocean fancy fishes, and adding necessary alga; and after 1 month of continuous culture, changing water thoroughly.

Description

technical field [0001] The invention relates to a kind of biological bait cultivation, in particular to a method for screening and cultivating Daphnia dwarfus as the open bait of marine ornamental fish. Background technique [0002] There are many kinds of ornamental fish in seawater, with different shapes, colorful colors, very beautiful, and deeply loved by people. Marine ornamental fish is considered to be the most potential and promising ornamental fish in the world, representing the direction of future ornamental fish development (Huo Fengmin, Zhang Zhirong, Zou Jixing. Development of Chinese ornamental fish industry. Hebei Fishery, 2010, 1:51-53) . At present, marine ornamental fish mainly come from the coral reef waters in the Indian Ocean and the Pacific Ocean. Common production areas include the Philippines, China Taiwan and the South China Sea, Japan, Australia, the Hawaiian Islands, India, the Red Sea, and the east coast of Africa. Due to the needs of marine res...

Claims

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Application Information

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IPC IPC(8): A01K67/033
CPCA01K67/033
Inventor 叶海辉曾朝曙郭东晖刘敏
Owner XIAMEN UNIV
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