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Nibea albiflora fry artificial mixed feed domestication method

A technology of artificial compound feed and yellow croaker, which is applied in fish farming, climate change adaptation, application, etc., can solve the problems of undisclosed domestication methods of artificial compound feed, and achieve the effect of improving the survival rate of seedlings and being easy to use

Active Publication Date: 2014-09-24
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this invention discloses the method of how to breed yellow croaker, it does not disclose the method of domesticating artificial compound feed for croaker fry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] From May to July 2012, the domestication of yellow croaker fry with artificial compound feed was carried out at the Xishan Experimental Site of Zhejiang Ocean Fisheries Research Institute (Zhoushan City).

[0029] (1) Newly hatched croakers are cultivated at a water temperature of about 25°C, and the water is changed once a day at 8 am and 14 pm. The larvae open their mouths at the age of 3 days and start feeding rotifers (Brachoptera rugosa). rotifers), rotifers are fed once after each water change, and the feeding amount of each rotifer is 4ind / ml, and the rotifers are strengthened with rotifer strengthening liquid for 12h before feeding, and the density of strengthening is 500ind / ml; The rotifer enhancement solution is made by mixing Nannochloropsis, nutrient enhancer (commercially available, Conker B produced by Qingdao Senmiao Industrial Co., Ltd.) and seawater. The concentration of Nannochloropsis in the rotifer enhancement solution is 5×10 7cell / ml, the dosage of...

Embodiment 2

[0039] From May to July 2012, the domestication of yellow croaker fry with artificial compound feed was carried out at the Xishan Experimental Site of Zhejiang Ocean Fisheries Research Institute (Zhoushan City).

[0040] (1) Newly hatched croakers are cultivated at a water temperature of around 27°C, and the water is changed every day at 8 am and 14 pm. The larvae open their mouths at the age of 4 days and start feeding rotifers (Brachoptera rugosa). rotifers), the rotifers are fed once after each water change, the rotifers are fed at a rate of 8 ind / ml each time, and the rotifers are strengthened with rotifer strengthening liquid for 15 hours before feeding, and the strengthening density is 300 ind / ml; The rotifer enhancement solution is made by mixing Nannochloropsis, nutrient enhancer (commercially available, Conker B produced by Qingdao Senmiao Industrial Co., Ltd.) and seawater. The concentration of Nannochloropsis in the rotifer enhancement solution is 4.5× 10 7 cell / ml...

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Abstract

The invention discloses a nibea albiflora fry artificial mixed feed domestication method. The method adopts the following steps: 1, prolonging feeding tine of rotifer and artemia nauplius; 2, applying artificial mixed feed domestication in advance; 3, performing lamplight induction aggregation domestication; 4, separating floating fry to culture. Therefore, the artificial mixed feed domestication of the nibea albiflora fry can be finished, and the survival rate of the nibea albiflora fry can be improved. Through the adoption of the method to conduct artificial mixed feed domestication on the nibea albiflora fry, 80% 35-day nibea albiflora fry can successfully convert to artificial mixed feed, 20% 35-day nibea albiflora fry floats, 60% 35-day nibea albiflora fry can successfully convert to fry which can eat artificial mixed feed after follow-up domestication, the batch death phenomenon does not occur, and the survival rate of fry breeding can reach 35%.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a domestication method of artificial compound feed for croaker fry. Background technique [0002] Yellow croaker (Nibea albiflora), commonly known as yellow croaker, belongs to Perciformes, Chrysostidae, and genus Yellow croaker. Its body shape is similar to yellow croaker. It is a fish in the middle and lower waters of the sea, mainly inhabiting sandy mud bottoms In shallow coastal waters, it feeds on benthic animals such as small crustaceans and small fish. Distributed in the Pacific Northwest, including the South China Sea, the East China Sea and the southern part of the Yellow Sea, the suitable temperature range is 8°C-33°C, the optimum growth water temperature is 24°C-29°C, the spawning water temperature is 24°C-28°C, and the age of sexual maturity is 2 weeks It is an ideal variety for multiplication and breeding in the southeast coast of my country. At present, large-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 史会来余方平楼宝邢雪金黄道胡张涛俞学军
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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