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Rapid domestication method for breeding young pomfret

A technology for juvenile fish and silver pomfret, applied in fish farming, climate change adaptation, animal feed, etc., can solve the problem of low fry survival rate and growth rate, poor domestication effect of cultured silver pomfret fry, high labor costs and feed Cost and other issues, to achieve the effect of benefiting digestion, increasing food intake rate and survival rate, and increasing food intake rate

Active Publication Date: 2019-08-09
NINGBO UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent is mainly aimed at wild silver pomfret fry, and the domestication effect on farmed silver pomfret fry is not good; the domestication time is relatively long, and the domestication effect is not significant enough; the domestication process is relatively cumbersome, requiring relatively more labor costs and feed costs; fry survival rate relatively low growth rate

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of rapid domestication method of breeding silver pomfret juveniles, the domestication process is divided into four stages, specifically as follows:

[0031] Fish for domestication: second-generation cultured silver pomfret juveniles, fork length 1±0.3cm;

[0032] The aquaculture water used for domestication has a water temperature of 20±1°C, a salinity of 25-30‰, and a pH of 7.6-8.2. The sand-filtered clean seawater has dissolved oxygen>10mg / L. The aquaculture water is sand-filtered and ultraviolet-sterilized. During the acclimatization process, the light intensity was controlled at 300-500Lx.

[0033] In the first stage, silver pomfret juveniles were cultured in three circular culture ponds with a diameter of 5m, and the water level in the culture ponds was 1.4m. The oxygenation method of the culture pond is central oxygenation, that is, the air stone is placed in the center of the culture pond to add oxygen. About 50,000 silver pomfrets were cultured in each...

Embodiment 2

[0038] A kind of rapid domestication method of breeding silver pomfret juveniles, the domestication process is divided into four stages, specifically as follows:

[0039] Fish for domestication: second-generation cultured silver pomfret juveniles, fork length 1±0.3cm;

[0040] The aquaculture water used for domestication has a water temperature of 20±1°C, a salinity of 25-30‰, and a pH of 7.6-8.2. The sand-filtered clean seawater has dissolved oxygen>10mg / L. The aquaculture water is sand-filtered and ultraviolet-sterilized. During the acclimatization process, the light intensity was controlled at 300-500Lx.

[0041] In the first stage, silver pomfret juveniles were cultured in three circular culture ponds with a diameter of 5m, and the water level in the culture ponds was 1.4m. The oxygenation method of the culture pond is central oxygenation, that is, the air stone is placed in the center of the culture pond to add oxygen. About 50,000 silver pomfrets were cultured in each...

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Abstract

The invention discloses a rapid domestication method for breeding young pomfret. The method comprises 4 domestication stages, wherein in the first stage, the pomfrets are domesticated to uniformly gather and swim in circles so that fixed-point feeding can be performed in the second stage; in the second stage, the method that artificial bait cooperates with natural bait is used, the young pomfretsare helped to be familiar with artificial feed; in the third stage, the young pomfrets are more familiar with the feed, and by domesticating the young pomfrets to go up to a feed platform, a feeding method of conventional bait spreading is converted into feed platform feeding, thereby further improving the feeding rate of the pomfrets; in the fourth stage, the young pomfrets are basically domesticated to be fed in the mode of feed platform feeding, and basically adapt to the artificial feed. Through the method of domesticating the pomfrets to swim regularly, to be familiar with the artificialfeed and to go up to the feed platform to be fed with artificial feed, the adaptability of the young pomfrets to the artificial feed is better, the adaptability speed is higher, the number of the young pomfrets with floating and flatulence is smaller, the residual bait rate is less than 2%, and the survival rate is increased from the original 50% to about 91%.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a rapid domestication method for cultivating silver pomfret juveniles. Background technique [0002] Silver pomfret is one of the main marine economic fishes in my country. Its meat is delicious and has high nutritional value and market demand. Therefore, domestic researchers began to carry out the artificial breeding of silver pomfret one after another. At present, Ningbo University has made a breakthrough in the breeding of silver pomfret and completed the large-scale breeding work. In the research process of silver pomfret breeding and breeding, it was found that the adult silver pomfret fish are always swimming in a fast and neat circle, and can be fed at fixed points. However, in the early stage of breeding silver pomfret juveniles, the silver pomfret juveniles swim more scatteredly and cannot be fed at fixed points, and the adaptability of silver pomfret to...

Claims

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Application Information

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IPC IPC(8): A01K61/10A23K50/80A23K20/158A23K10/22A23K10/30A23K10/20
CPCA23K10/20A23K10/22A23K10/30A23K20/158A23K50/80A01K61/10Y02A40/81Y02A40/818
Inventor 胡佳宝王亚军张曼李渊博王昆匡思雯孙弋博顾玮玮陶顺顺徐君芳
Owner NINGBO UNIV
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