Indoor controllable breeding method for mouth opening of siniperca chuatsi larva fishes through non-living bait fishes

A cultivation method, the technology of squid mandarin fish, which is applied in the field of aquaculture fish fry cultivation, can solve the problems of easy infection, difficulty in opening the mouth, season, nutrition, price restrictions, etc., to improve the survival rate and improve the controllability of mandarin fish. The effect of factory farming and increasing feeding rate

Active Publication Date: 2021-01-01
HUAZHONG AGRI UNIV +1
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Problems solved by technology

[0005] The purpose of the present invention is to select artemia of appropriate size after indoor artificial cultivation and nutritional strengthening of Artemia, and keep 24h light during the opening period to realize the use of non-live bait fish under controllable conditions for opening the mouth of mandarin mandarin fish, which makes up for the supply of bait fish It not only solves the problem tha...

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  • Indoor controllable breeding method for mouth opening of siniperca chuatsi larva fishes through non-living bait fishes
  • Indoor controllable breeding method for mouth opening of siniperca chuatsi larva fishes through non-living bait fishes
  • Indoor controllable breeding method for mouth opening of siniperca chuatsi larva fishes through non-living bait fishes

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Experimental program
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Effect test

Embodiment 1

[0027] Effects of the size of Artemia on mouth feeding and survival rate of mandarin fish:

[0028] 1) Indoor controllable artificial hatching and cultivation of mandarin fish with cocked mouth: place the fertilized eggs of mandarin fish in tap water after aeration at a density of 300-500 per L, and fully aerate the fertilized eggs of mandarin fish to float up and down in the water body. Change the water once a day and suck out dead eggs and impurities to ensure fresh water quality. The mandarin fish will produce a large amount of oil film after it comes out of the film. At this time, it is advisable to change the water 3 times a day to suck out the egg film and impurities to ensure the water quality. The swimming ability of the mandarin fish is limited after it emerges from the membrane, and the impurities and flocs in the water must be removed in time to avoid the death of the mandarin fish.

[0029] 2) Hatching and expanded cultivation of Artemia: Take commercial Artemia e...

Embodiment 2

[0035] The effect of light on mouth-feeding artemia of mandarin fish with cocked mouth:

[0036] The mandarin fishes on the 4th day after the film was taken out were divided into two groups. The ratio of light to dark time in the control group was 12h:12h, and the experimental group was lighted for 24h. Both groups were fed Artemia with a length of 700-900μm, and each group had 3 replicates. , the cultivation method of mandarin fish is carried out by embodiment 1. Feed Artemia once a day at 8:00 and 18:00, the water temperature is 23-25°C, suck out the residual bait and feces before feeding, and change 1 / 3 of the water to keep the water fresh. According to the method described in embodiment 1, the feeding situation and the survival rate of the cocked mandarin fish are counted. Result analysis: if Figure 6 The results showed that the light can significantly improve the feeding rate and survival rate of Artemia in the cocked mandarin fish in the 24h light group. The feeding ...

Embodiment 3

[0038] An indoor controllable non-live bait fish opening cocked mandarin fish cultivation method, which includes indoor controllable artificial cultivation and nutritional enhancement of artemia, Artemia is used for feeding cocked mandarin fish bait, the specific method is as follows:

[0039] 1) Indoor controllable artificial cultivation and nutritional enhancement of Artemia

[0040] 1.1 Artemia eggs are hatched in a water body with a salinity of 10-12‰, the salinity of the water body for cultivating Artemia is controlled at 20-25‰, the salt used must be sea salt, and the density of Artemia is 50-80 / ml;

[0041] 1.2 The length of artemia after artificial cultivation can reach 400-900μm, which is beneficial for mandarin fish to find and feed on artemia;

[0042] 1.3 Nutrients were used for fortification after Artemia broke its shell, and the content of EPA and DHA in the fatty acid composition of Artemia after fortification for 16-24 hours was significantly higher than that o...

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Abstract

The invention provides an indoor controllable breeding method for mouth opening of siniperca chuatsi larva fishes through non-living bait fishes. After siniperca chuatsi larva fishes come out of a membrane for the fourth day, artemia with the length of 700-900 [mu]m after nutrition enrichment is taken as mouth opening baits of the siniperca chuatsi larva fishes, 24-hour illumination is kept all day long in the period that the siniperca chuatsi larva fishes open mouth for ingestion of the artemia, and salinity of a breeding water body is 0.3%-0.5%. According to the indoor controllable breedingmethod, the non-living bait fishes are used for mouth-opening ingestion of the siniperca chuatsi larva fishes under the indoor controllable condition for the first time, the artemia with the length of700-900 [mu]m and being subjected to nutrition enrichment is beneficial to ingestion and digestion and absorption of the siniperca chuatsi larva fishes, and the survival rate and the ingestion rate of the siniperca chuatsi larva fishes can be remarkably increased after 24-hour illumination treatment; and through the indoor controllable breeding method, the survival rate of the siniperca chuatsi larva fishes during mouth opening is increased, the problem of part of diseases caused by the bait fishes is also solved, and reliable technical support is provided for indoor industrial siniperca chuatsi breeding.

Description

technical field [0001] The invention belongs to the technical field of fish fry cultivation in aquaculture, and in particular relates to a method for cultivating mandarin fish with cocked mouths by using open bait (artemia) of non-live bait fish. Background technique [0002] Mandarin fish belongs to Perciformes, naturally only distributed in East Asia (Russia, Japan, South Korea, China and Vietnam (Red River)), and is the main rare and precious fish in my country. The main cultured species of mandarin fish is Siniperca sinensis, and the insufficient or delayed supply of bait for opening the mouth will lead to low survival rate and slow growth of mandarin fish in the early developmental stage. Therefore, in artificial breeding, how to provide nutritious and palatable open bait for the squid fry is the key to successful breeding. Although mandarin fish artificial breeding and breeding have been initially successful, the production of mandarin fish fry is small. In the produc...

Claims

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Application Information

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IPC IPC(8): A01K61/10A23K50/80A23K10/20
CPCA01K61/10A23K50/80A23K10/20Y02A40/81
Inventor 梁旭方汤树林王明军何珊刘立维张焱鹏张志陆肖倩倩
Owner HUAZHONG AGRI UNIV
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