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Breeding method for fast nursing of siniperca chuatsi fry

A cultivation method, the technology of Siniperca sinensis, which is applied in the field of rapid breeding of Siniperca sinensis seedlings, can solve the problems of low survival rate of Siniperca sinensis seedlings, few research reports on seed cultivation, lack of cultivation cycle, and problems of cultivation survival. rate and other issues, to achieve the effect of reducing the use of harmful drugs

Inactive Publication Date: 2017-01-04
PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI
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Problems solved by technology

However, the survival rate of mandarin fish seedlings is low. In the production process, seed cultivation and supply have become one of the restrictive factors for the production of mandarin mandarin fish.
[0004] On the other hand, the current research reports on the cultivation methods of Siniperca chinensis usually involve the cultivation technology of adult Siniperca pisces, such as "A Method for Cultivating Mandarin Fish" with patent application number 201310311367. Feed and mandarin fish artificial taming method", 201510299519.9 "Mandarin fish breeding method" and so on, but there are few research reports on seed cultivation, especially the lack of research on key factors that affect the cultivation cycle and the survival rate of cultivation

Method used

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preparation example Construction

[0033] Wherein, the preparation method of the probiotic fermentation liquid includes: the probiotic mixture includes a carrier and a composite strain, and the carrier includes 3% to 6% white dextrin, 2% to 5% silicon dioxide, 75% % to 85% glucose, 8% to 15% wheat bran powder, the composite bacteria include 0.5 to 1.5:1 to 3:1 to 3 nitrifying bacteria, bacillus, EM bacteria, the mixed bacteria and carrier The ratio is ≧1.0×10 10 cfu / g; the fermentation method of the probiotic fermentation liquid: add water, brown sugar and soybean meal to the probiotic mixture, and ferment for more than 24 hours under the condition of avoiding light and oxygenation to obtain the probiotic fermentation liquid.

[0034] In the above-mentioned cultivation method, the culture pond is an independent seed culture pond, rather than a culture pond in which the seed is shared or mixed with other fish (for example, adult mandarin fish with cocked mouth).

[0035] In a preferred cultivation method, a she...

Embodiment 1

[0083] Preparation:

[0084] 1. Probiotic fermented liquid:

[0085]The probiotic mixture comprises carrier and composite strain, and described carrier comprises 5% white dextrin, 3% silicon dioxide, 80% glucose, 12% wheat bran powder in mass percent, and described composite strain comprises 1:2: 2 Nitrifying bacteria, Bacillus, EM bacteria, the ratio of the composite bacteria to the carrier is ≧1.0×10 10 cfu / g;

[0086] Add 1000 parts by weight of water, 10 parts by weight of brown sugar and 10 parts by weight of soybean meal to 1 part by weight of the probiotic mixture, and ferment for more than 24 hours under dark and aerobic conditions to obtain a probiotic fermentation liquid.

[0087] 2. Breeding pond treatment:

[0088] Construct a cement breeding pond. A shelter is set above the cement breeding pond to avoid direct sunlight and exposure. An aeration plate is installed at the bottom of the cement breeding pond. After disinfecting and filling the pond with potassium p...

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Abstract

The invention relates to a breeding method for siniperca chuatsi fry, in particular to a breeding method for fast nursing of siniperca chuatsi fry. The method comprises the steps of culture pond treatment and breeding. The step of breeding comprises the procedures of (1) in-loop incubation management and (2) culture pond breeding management. Through study of key factors influencing the survival rate and the breeding period of the siniperca chuatsi fry, the modes of loop incubation and soecial culture pond nursing are adopted, in the breeding period, the means that the breeding density is controlled in a regular separating and scattering manner, probiotics fermentation liquor is used for water regulation and water maintaining, and the feed ratios in the different growth periods are strictly controlled are adopted, the large-specification siniperca chuatsi fry are bred, the survival rate can reach 90% or above and preferably can reach 94% or above, and the breeding period can be shorten to be within 45 days and preferably within 40 days.

Description

technical field [0001] The invention relates to a method for cultivating mandarin fish seedlings, in particular to a method for quickly measuring the size of mandarin fish seedlings with cocked mouths. Background technique [0002] Siniperca chuatsi (Siniperca chuatsi) belongs to the perciformes mandarin fish genus, also known as sweet-scented osmanthus fish, seasonal flower fish, etc. The market prospect is good and it is favored by farmers. The market demand is in short supply, and the market price is rising continuously. It has become one of the important famous, special and high-quality varieties of aquaculture in China. [0003] The cultivation of Siniperca chinense generally needs larger-sized fingerlings, which can improve the survival rate of the culture. In recent years, the annual production of Siniperca sinensis in my country has reached more than 300,000 tons, and there is a great demand for high-quality Siniperca mandarin seedlings . However, the survival rate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K50/80
CPCY02A40/81Y02A40/818A01K61/00
Inventor 叶星孙海林孙成飞董浚键赵立祥曾庆凯
Owner PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI
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