Hatching method of the ovum of Branchinella kugennumaensis

A technology for eggs and larvae, which is applied in the field of hatching eggs of C. spp The effect of low hatching rate

Inactive Publication Date: 2007-09-12
ZHEJIANG INST OF FRESH WATER FISHERIES
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  • Abstract
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Problems solved by technology

[0005] However, Cladona spondylus is an oviparous animal, and its eggs have the characteristics of dormancy and diapause, and the hatching is extremely asynchronous, and its larvae cann...

Method used

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Embodiment Construction

[0016] The processing and hatching method of the cloverworm ovum of the present invention will be described in detail below through specific embodiments, but the protection scope of the present invention should not be limited by the examples.

[0017] The processing, hatching method of the clover worm ovum comprise the following steps:

[0018] 1. Processing of insect eggs: Rinse the collected eggs with sundries with water, sieve them through 24 mesh and 40 mesh, and then soak them with ordinary washing powder. After rinsing, put the eggs into a bucket, add water, and stir them evenly, then inflate and stir them, let them stand for a while, and use a rubber hose to remove the sand and floating objects at the bottom. The above steps should be repeated until clean eggs are obtained. After rinsing, dehydrate and dry (not exposed to direct sunlight), sieve through a 60-mesh sieve, and then sieve the under-sieve through a 100-mesh sieve, and the over-sieve is the collected eggs.

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Abstract

The present invention relates to hatching of insect egg to obtain live fish feed, and is especially the hatching process of Branchinella kugennumaensis egg. The hatching process includes the following steps: pre-treatment of soaking wet Branchinella kugennumaensis egg in alkali solution for 0.5-2 hr and water rinsing; setting the egg in 20-40 ppm KMnO4 solution in 3-8 g egg/L at 25-30 deg.c, and continuously illuminating in the light intensity over 1000 Lux while inflating to hatch the egg. In the process, egg is hitched in 24-48 hr into nauplius. The present invention provides great amount of nauplius for fresh water aquaculture.

Description

technical field [0001] The invention relates to a method for hatching eggs of animal live bait insects in the field of biology, in particular to a method for hatching eggs of Cladostas spp. Background technique [0002] So far, in aquaculture, the nutrient source of fish, shrimp, and shellfish seed cultivation mainly depends on biological bait, and there is no successful report on large-scale cultivation of fish, shrimp, and shellfish using artificial feed alone, especially for fish in the opening stage. , shrimp, shellfish. Most studies have proved that the nutritional factors in biological bait are beneficial to the feeding, digestion and absorption of fish, shrimp and shellfish. Therefore, the cultivation of biological bait plays a very important role in aquaculture, especially in the production of aquatic animal seed. The successful research and development of biological baits - Artemia and rotifers in the middle and late 1980s laid a solid fo...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 潘茜叶金云陈建明王友慧沈斌乾
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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