Method for artificially breeding Plagiognathops microlepis

A technology for artificial reproduction of the scaly chinensis, which is applied in food processing, climate change adaptation, animal feed, etc., can solve the problems of high dosage and unsatisfactory artificial induction of labor, etc., and achieves remarkable effects.

Inactive Publication Date: 2012-01-04
JURONG JURONG RESERVOIR ADMINISTRATION OFFICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the artificial breeding method of broodstock published by Zeng Huanan et al. in "Famous, Special and Excellent Aquaculture Healthy Breeding Technology" (published by Hunan Science and Technology Press in September 2008), 80kg of broodstock per mu, with a size of 500~700g/tail, is used for broodstock feed including yellow Soymilk and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) From June to December of the first year, control the stocking density of 3-year-old or 4-year-old broodstock at 80kg / mu m, inject water every 15-20 days, and feed twice a day with a protein content of 28% The compound feed for the broodstock of the slender squamous pomfret is 2~3% of the weight of the broodstock in the pond;

[0022] (2) From January of the second year to before spawning, the stocking density is controlled at 50kg / mu m; water is injected every 5 to 6 days, and the broodstock of Pleurotus chinensis with a protein content of 28% is fed twice a day. Feed, each feeding amount is 3~5% of the body weight of the broodstock in the pond, and the size of the broodstock before ovulation is more than 0.6kg;

[0023] The compound feed for broodstock of pomfret slender scales includes: 38% soybean cake, 10% fish meal, 15% rice bran, 20% bran, 14% secondary flour, and 3% fish premix.

[0024] Sprinkle quicklime every 20-25 days to disinfect the pool water, and us...

Embodiment 2

[0029] (1) From June to December of the first year, control the stocking density of 3-year-old or 4-year-old broodstock at 80kg / mu m, inject water every 15-20 days, and feed twice a day with a protein content of 28% The compound feed for the broodstock of the slender squamous pomfret is 2~3% of the weight of the broodstock in the pond;

[0030] (2) From January of the second year to before spawning, the stocking density is controlled at 50kg / mu m; water is injected once every 5 to 7 days, and the broodstock of Pleurotus chinensis with a protein content of 34% is fed twice a day. Feed, each feeding amount is 3~5% of the body weight of the broodstock in the pond, and the size of the broodstock before ovulation is more than 0.6kg;

[0031] The compound feed for broodstock of pomfret slender scales includes: 59% soybean cake, 10% fish meal, 8% rice bran, 10% bran, 10% flour, and 3% fish premix.

[0032] Sprinkle quicklime every 20-25 days to disinfect the pool water, and use 15-2...

Embodiment 3

[0037] (1) From June to December of the first year, control the stocking density of 3-year-old or 4-year-old broodstock at 80kg / mu m, inject water every 15-20 days, and feed twice a day with a protein content of 28% The compound feed for the broodstock of the slender squamous pomfret is 2~3% of the weight of the broodstock in the pond;

[0038] (2) From January of the second year to before spawning, the stocking density is controlled at 50kg / mu m; water is injected every 5 to 6 days, and the broodstock of Pleurognath chinensis with a protein content of 26% is fed twice a day to cooperate Feed, each feeding amount is 3~5% of the body weight of the broodstock in the pond, and the size of the broodstock before ovulation is more than 0.6kg;

[0039] The compound feed for pomfret chinensis broodstock includes: 31% soybean cake, 10% fish meal, 17% rice bran, 21% bran, 18% secondary flour, and 3% fish premix.

[0040]Sprinkle quicklime every 20-25 days to disinfect the pool water, a...

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PUM

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Abstract

The invention discloses a method for artificially breeding Plagiognathops microlepis, belonging to the field of aquacultures. The method comprises the steps of stocking in the earlier stage, stocking in the later stage, carrying out artificial induced spawning and un-sticking fertilized ovum. The protein content in parent fish compound feed in the stocking process is 26-34%. The charging amount in the stocking process in the later stage is 3-5% of the weight of parent fishes in a pool. The artificial induced spawning medicine is a composition of PG (pituitary gland), LRH-A2 (luteinizing hormone releasing hormone A2) and 0.7% of sodium chloride solution. The fertilized ovum is un-stuck by using yellow mud slurry. According to the method disclosed by the invention, a scientific parent fish artificial culturing and proper artificial medicine induced spawning technology is adopted, therefore, the oestrous rate of parent fishes of Plagiognathops microlepis is up to 95% during 18 h, the artificial induced spawning rate is 95%, the artificial fertilization rate is 95%, and the artificial fry breeding effect is obvious.

Description

technical field [0001] The invention relates to an aquatic breeding method, in particular to an artificial breeding method of the slender gnats. Background technique [0002] Slender jawed pomfret ( Plagiognathops microlepis (Bleeker) ) belongs to the Cyprinidae family, the subfamily Pleuridae, and the genus Pleurognathus, commonly known as Shaguzi, Huangpian, Banhuangcroaker, Huangwei Diaozi, etc. It is distributed in rivers, lakes and reservoirs such as the Yangtze River, Heilongjiang, and Pearl River in my country. It is a kind of important economic fish. The main food of pomfret lentilis is humus, detritus of higher aquatic plants, diatoms and filamentous algae at the bottom of the water. Polyculture can make full use of water body bait biological resources. Moreover, the fish meat is delicious and is a very popular edible fish. [0003] Pomfret slender scales can generally reach sexual maturity in 2 years, has strong fecundity, and lays eggs in May to June, and the e...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K1/14A23K1/10A23K10/22A23K10/30A23K10/37A23K50/80
CPCY02A40/81Y02A40/818Y02P60/87
Inventor 尚进李正元李建伟洪玉定经秋红王傲银唐自力
Owner JURONG JURONG RESERVOIR ADMINISTRATION OFFICE
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