Scale breeding method of jade perch

A technology of gem perch and gem, which is applied in the direction of climate change adaptation, animal feed, additional food elements, etc., can solve problems such as insufficient bait abundance, failure to provide fertilized egg hatching, cannibalism survival rate, etc., to achieve guaranteed batches The effect of improving production, improving the survival rate of seedlings, and avoiding cannibalism

Inactive Publication Date: 2007-12-05
PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The artificial breeding of gem perch seedlings in my country began in 2004. Although many units in China have carried out artificial breeding of gem perch, it is difficult to obtain large quantities of high-quality fertilized eggs due to 1. The prenatal intensive cultivation of broodstock is not emphasized. ; 2. Failure to provide the optimal water environment factors for fertilized egg hatching and fry cultivation; 3. Failure to provide nutritionally suitable opening cultivation bait during the fry cultivation stage, and the opening feedin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Intensive cultivation of broodstock: The broodstock is usually raised in fish ponds at 200-250 kg / mu, and intensive cultivation begins 2 months before spawning, that is, the fish are fed with fish feed added with vitamin E and unsaturated fatty acids , of which vitamin E accounts for 0.6%, and unsaturated fatty acids account for 1%. And regular running water stimulation, that is, flushing once every 3 days, the amount of flushing water is 5% of the pond water volume.

[0019] (2) Spawning and hatching: Put the strengthened broodstock into the 40m 1 day before induced spawning according to female: male = 1:1. 3 In the circular spawning pool, there are 20 to 26 tails in each pool, and the stimulation of running water is kept. Inject aphrodisiac drugs to make broodstock spawn naturally, collect fertilized eggs, wash and disinfect them, and put them in an area of ​​12m 2 , 30,000 fertilized eggs / m in a cement pool with a depth of 80cm 3 The density of the water body ...

Embodiment 2

[0022] What is different from Example 1 is that in step (1) the broodstock is started to be intensively cultivated 1 month before spawning, and the fish feed is fed with vitamin E and unsaturated fatty acids, wherein vitamin E accounts for 0.5%. Saturated fatty acids make up 1.5%. And regular running water stimulation, i.e. flushing once every 2 days, the flushing volume is 4% of the pond water volume; in the step (2), the broodstock is put into the spawning pond by the ratio of female: male=1.5: 1, by 20,000 Fertilized eggs / m 3 The density of the water body is micro-flowed, that is, the water filling volume is adjusted to 80L / h, aerated for incubation, and the air stone is 2 pieces / m 2 Evenly distributed, the dissolved oxygen is kept above 5mg / L, and the water salinity is kept at 4‰, and the water temperature is 26°C. Stocking density is 10,000 tails / m in the described step (3) 3 For the water body, keep micro-flowing water (the water filling volume is adjusted to 200L / h) ...

Embodiment 3

[0024] What is different from Example 1 is that in step (1) the broodstock is started to be intensively cultivated 1 month before spawning, and the fish is fed with fish feed supplemented with vitamin E and unsaturated fatty acids, wherein vitamin E accounts for 1%. Saturated fatty acids account for 0.5%. And regular running water stimulation, i.e. flushing once every 4 days, the amount of flushing water is 6% of the pond water volume; in the step (2), the broodstock is put into the spawning pond by the ratio of female: male=1.3: 1, by 40,000 Fertilized eggs / m 3 The density of the water body is micro-flowed, that is, the water filling volume is adjusted to 90L / h, aerated for incubation, and the air stone is 1 piece / m 2 Evenly distributed, the dissolved oxygen is kept above 5mg / L, and the salinity of the water body is kept at 5‰, and the water temperature is 28°C. Stocking density is 30,000 tails / m in the described step (3) 3 For the water body, maintain micro-flowing water ...

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Abstract

The mass jade perch fry rearing process includes the following steps: 1. reinforced parent perch incubation after raising in a fish pond, in 1-3 months before laying eggs and through regular flow water irritation; 2. laying egg and incubating by means of setting female perch and male perch in the ratio of 1-1.5 to 1 into the egg laying pond, keeping flow water irritation, injecting echolica for female perch to lay egg, gathering fertilized eggs and incubating in a cement pond with slow flowing water, air inflation, certain water salinity and controlled water temperature; and 3. rearing perch fry in an incubating pond with slow flowing water, air inflation, certain water salinity and controlled water temperature through feeding brine shrimp larva. The said process has high jade perch fry survival rate.

Description

technical field [0001] The invention relates to a method for raising fish seedlings, in particular to a method for large-scale seedling raising of Scortum bacoo. Background technique [0002] Scortum Barcoo (Scortum Barcoo), English name Jade Perch, belongs to the order Perciformes, Scortumidae, and the genus Scortum in classification. It is native to Australia and is an economical freshwater fish in Australia. The fish is delicious, without intermuscular spines, and contains The meat rate is high and nutritious. In October 2000, Pearl River Fisheries Research Institute successfully introduced gem perch into my country through Australian Aquaculture Products for breeding experiments. From May to June 2001, Shandong Province also imported seedlings of gem perch from Australia for breeding. The artificial breeding of gem perch seedlings in my country began in 2004. Although many units in China have carried out artificial breeding of gem perch, it is difficult to obtain large...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K20/105A23K20/174A23K50/80
CPCY02A40/81
Inventor 陈昆慈潘德博朱新平李凯彬郑光明
Owner PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI
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