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Ecological cultivating method for initial feed of sebastiscus marmoratus larva

A technology of opening bait and cultivation method, which is applied in fish farming, application, climate change adaptation, etc., can solve the problem of unavailability of opening bait, and achieve the effects of expanding water body production capacity, improving economic benefits, and improving utilization efficiency.

Active Publication Date: 2017-01-04
SHANGHAI FISHERIES RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Compared with the prior art, the outstanding features of the present invention are: 1) solve the problem that the open bait cannot be obtained in the low temperature season in the cultivation process of the scorpionfish seedling; 2) use the greenhouse technology to obtain a large amount of open bait one month earlier , which laid the foundation for the industrialized nursery of the brown calamari; 3) Using the biological suppression method, a large amount of open bait can be collected from the middle and late March to the beginning of June; In order to suppress the large zooplankton in the bait cultivation pond, the population of copepod nauplius was ensured; the introduction of the white prawn and the second-year-old sword anchovy also made full use of the space of the bait cultivation pond, and tapped the production potential of the bait cultivation pond , improve the utilization efficiency of the water body, expand the production capacity of the water body, increase the output of the pond, and improve the economic benefits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Embodiment one: present embodiment comprises the equipment of bait cultivation pool, the inoculation and collection of copepods, and bait cultivation pond should have cement or film slope, and bottom quality is non-seepage muddy or silt quality, and water depth is 1 ~2m, the top is an artificially constructed steel wire plastic greenhouse, equipped with independent water inlet and drainage facilities and aerators; every year from December to January of the following year, 20ppm bleaching powder with water is used to disinfect the bait cultivation pond, and after 2 days, the bottom of the pond is pumped out The water is disinfected with 150kg / mu of quicklime dry pool, and after a week of exposure to the sun, enter the water. The water inlet is covered with a 60-mesh sieve. The water source is natural river water with a salinity of 1.2 to 2.0; Green, collect copepods from other ponds and inoculate them into the bait cultivation pond. The number of copepods in the bait cult...

Embodiment 2

[0007] Embodiment two: according to the mode described in embodiment one, on the 2nd day that the larvae of the brown calamari are hatched, part of the larvae of the brown calamari is ingested, and the bait of the larvae of the brown calamari that is collected is fed into the nursery pond, so that Copepod nauplii, small protozoa and rotifer microzooplankton in the nursery pond were kept at 5-8 / ml, and the feeding was stopped at 10 days old. The results showed that the survival rate of 10-day-old brown calamari was 53.3 %.

Embodiment 3

[0008] Embodiment 3: According to the method described in Embodiment 1, the bait cultivation pool is close to the nursery field, with convenient transportation, sufficient water source, rectangular shape of the pool, and an area of ​​1900~4400m 2 , equipped with two 1.5KW aerators.

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Abstract

The invention relates to an ecological cultivating method for initial feed of sebastiscus marmoratus larva. The method is characterized in that a cement or film side slope is arranged in a feed cultivating pool; the non-leaking muddy or sandy sediment is arranged as the bottom sediment; the water depth is 1-2m; independent water feeding / draining facility and aerator are arranged. The method comprises the following steps: sterilizing the feed cultivating pool with water containing 20ppm bleaching powder in the period from each December to the January in next year; after 2 days, dryly disinfecting the pool with 150kg / mu quick lime; exposing for one week and then feeding water; covering a 60-mesh silk gauze at a water inlet, wherein the water resource is natural river water and the salinity is 1.2-2.0; collecting copepods from the other pond and inoculating into the feed cultivating pool, after water is fed into the feed cultivating pool for one week and water in the pool becomes yellow green; after inoculating the copepods, stocking palaemon carinicauda and 2-year old coilia ectenes and feeding prawn mixed feed for one time per day; collecting the small zooplankters including copepods nauplius, small anhistozoa, rotifer, and the like, as the initial feed of sebastiscus marmoratus larva, when the water temperature is 15 DEG C or above.

Description

technical field [0001] The invention relates to a method for cultivating fish bait, in particular to a method for ecologically cultivating bait for larvae of brown squid larvae. Background technique [0002] Brown calamus (Sebastiscus marmoratus) is a warm-temperate bottom oviviparous fish belonging to the order Scorpionidae, suborder Scorpio, family Scorpionidae, and the genus Scorpion. It is widely distributed in coastal areas and is a sedentary fish on islands and reefs. Because of its tender meat, delicious taste and high economic value, it is one of the best species for marine ranching, fishing and leisure tourism. In recent years, due to the continuous upgrading of marine fishery tools and the continuous warming of recreational fishing, the resources of the brown calamari are increasingly depleted. The primary problem in breeding is the opening of the larvae. At present, rotifers are generally the main bait for fish fry, while the breeding season of the brown calamar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033A01K61/00
CPCA01K61/00A01K67/033Y02A40/81
Inventor 刘永士谢永德施永海张海明严银龙
Owner SHANGHAI FISHERIES RES INST
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