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Early feeding domesticating method of pelteobagrus fulvidraco

A technology of yellow catfish and domestication, applied in fish farming, food processing, additional food elements, etc., can solve the problems of high labor intensity, staged growth inhibition, increased dispersion of growth, and dependence on the number of grasses , to achieve the effects of reducing growth loss, shortening the cultivation period, and improving the efficiency of domestication

Pending Publication Date: 2020-03-31
北京昕大洋科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, domestication, especially early domestication, is often accompanied by low survival, phasic growth inhibition, and increased growth dispersion
This phenomenon should be attributed to the following two problems: 1. There is a contradiction between the imperfect development of the digestive system of larvae and juveniles and the lack of bioactive components in the artificial diet; contradiction
This measure has a relatively high risk of zooplankton-derived disease infection and insecticide poisoning of juvenile and juvenile fish
The method of raising seedlings in a small environment with flowing water, using artificial feed for the whole period, and not requiring bait organisms has been invented, but the requirements for breeding facilities are high, and it is not suitable for general soil ponds (application number 201110090799.4)
There is an invention that shows that it can be tamed at 9DAH~13DAH, but before that, powdered feed needs to be sprinkled in the whole pond several times a day, the cost of feed is high, the risk of water quality problems is high, and pesticides are still needed to kill insects before taming (application number 201610040943.6)
Another invention shows that the timing of domestication can be advanced to 3-5 days after going to the pond, but it is necessary to harvest the small canopy grass, bundle 1kg-3kg haystacks, and remove them after the domestication is over, which depends on the quantity of the grass and requires manual labor. High strength (application number 201810793298.4)
[0006] In the common earth pond, the present invention advances domestication to 4d to 5d (9DAH to 10DAH, 1DAH on the day of filming, the same as the whole text) after going down to the pond, without using drugs to kill insects, and uses special feed formula technology for domestication, bacterial enzymes, etc. There is no report on the food domestication scheme combined with the addition of compound biological agents, the behavioral characteristics of larvae and juveniles, and the ecological control technology of bait organisms.

Method used

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  • Early feeding domesticating method of pelteobagrus fulvidraco
  • Early feeding domesticating method of pelteobagrus fulvidraco

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1 A kind of yellow catfish domestication method in advance

[0050] In Xiaosi Township, Caidian District, Wuhan City, Hubei Province, the nursery pond is 40m×85m, with a slope ratio of 1:3, and microporous aeration plates, 3 per mu.

[0051] On May 19, 2018, 25kg / mu of bleaching powder was used to clear the pond, inject 60cm of water, and fertilize on the 4th day after clearing the pond, that is, on May 22. Amino acid paste for fertilization 1.5kg / mu + dry fermented chicken manure 8kg / mu + ammonium dihydrogen phosphate 0.8kg / mu + potassium fulvic acid 600g / mu + compound bacteria 150g / mu (the ratio of compound bacteria is 15:5:2( Enterococcus faecium: Saccharomyces cerevisiae: Rhodopseudomonas palustris; CFU / g ratio). From 4 days to May 26, the density of rotifers in the pool was ≈16 / mL, and the biomass was ≥15 μg / mL. Brachionus, Filinia; Cladocera ≈0.1 / mL, biomass ≥3μg / mL.

[0052] Among them, on the evening of May 25, 2018, the water centipede was illumina...

Embodiment 2

[0064] Embodiment 2 A kind of yellow catfish domestication method in advance

[0065] Gaochang Town, Qianjiang City, Hubei Province, 8 mu nursery pond, aspect ratio 5:3, air pump oxygenation, 0.3kW / mu.

[0066] On the morning of May 29, 2018, Qingtang. 3 days after clearing the pond, that is, on June 01, use amino acid paste 1.5kg / mu + dry fermented chicken manure 7kg / mu + ammonium dihydrogen phosphate 1kg / mu + potassium fulvic acid 800g / mu + compound bacteria 100g / mu to fertilize (compound The bacteria ratio is 15:5:2 (Enterococcus faecium: Saccharomyces cerevisiae: Rhodopseudomonas palustris; ratio of CFU / g). From 4 days to June 05, the zooplankton density was estimated by the water collector, and the rotifers were 8.5 Individuals / mL, biomass ≥10 μg / mL, Cladocera 0.25 individuals / mL, biomass ≥8 μg / mL.

[0067] On June 4, 2018, water worms (0.8cm to 1.4cm) were found in the pool, and a 20-mesh net was used to pull the net three times to remove some of the water worms.

[0...

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Abstract

The invention relates to the field of aquaculture, in particular to an early feeding domesticating method of pelteobagrus fulvidraco fries. The method is a standardized operating scheme, the life habits of the fries at the period of fingerlings and a biological feed technique are utilized, feeding domestication is advanced, and the production properties during the feeding domestication are improved. According to the feeding domesticating method provided by the invention, through controlling the conditions of fertilizing, larva fish delivering density, feed composition and the like, before feeding domestication, medicines are not needed for destroying zooplankton, accident risk is reduced, and medicine hurt is avoided; and besides, the feeding domestication starting time is advanced to 9DAH-10DAH, the culture cycle is shortened, the survival rate of the pelteobagrus fulvidraco from being put into a pond to completion of the feeding domestication is greater than or equal to 88%, the relative growth rate is greater than or equal to 25.5%, and the coefficient of variation of weight is smaller than or equal to 35%.

Description

Technical field: [0001] The invention relates to the field of aquaculture, in particular to a method for early domestication of yellow catfish fry, which is a standardized operation scheme for early domestication and improvement of production performance during the domestication period by utilizing the living habits of the fish fry during the seed period and biological feed technology. [0002] technical background: [0003] Pelteobagrus fulvidraco belongs to the order Siluriformes, the family Bagridae, and the genus Pelteobagrus. It is one of the freshwater special fish with the fastest development speed and the highest attention in recent years. In 2018, the output was about 510,000 tons (including hybrids), ranking ninth among freshwater fish in my country. [0004] Compared with natural bait, artificial feed has the advantages of stable supply, controllable nutritional and hygienic indicators, and is suitable for industrialized breeding systems. Therefore, domestication i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/22A23K10/20A23K10/37A23K10/30A23K20/147A23K10/18A23K20/158A23K20/26A23K20/10A23K20/142A23K20/163A23K20/189C05G3/00C05G3/80
CPCA23K10/18A23K10/20A23K10/22A23K10/30A23K10/37A23K20/10A23K20/142A23K20/147A23K20/158A23K20/163A23K20/189A23K20/26A23K50/80A01K61/10C05B7/00C05G3/00Y02P60/87Y02A40/81Y02A40/818
Inventor 沈凡赵丽芳郭宝林
Owner 北京昕大洋科技发展有限公司
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