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Artificial propagation method of plectorhinchus cinctus

A technology of artificial breeding of P. chinensis, applied in food processing, climate change adaptation, animal feed, etc., can solve the problems of high deformity rate, low fertilization rate, and small number, and achieve the effect of reducing the deformity rate

Active Publication Date: 2019-08-23
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Peppered bream is distributed in the South my country Sea, East China Sea and Yellow Sea, etc., but the number is not large. After years of large-scale fishing, the number of broodstock and seedlings caught in natural sea areas has decreased year by year, and it has been difficult to meet people's needs.
At present, the industry has carried out artificial breeding, but the effect is not satisfactory
The existing breeding methods mainly have the following deficiencies: the reproductive cycle is long; the gonads of the male and female broodstock cannot reach synchronous maturation, the maturation of the gonads of the broodstock is insufficient, the quality of sperm and eggs is not good, the fertilization rate is low, the hatching rate is low, and the deformity rate is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of artificial breeding method of japonica, comprising the following steps:

[0035] (1) Parent selection

[0036] Select 1-year-old, 2-4kg P. chinensis as the parent;

[0037] (2) Parental breeding pond

[0038] The pond area for cultivating parents is 2 mu, the water depth is 3m, the breeding density is 60 tails / mu, and the ratio of male to female is 1:0.5; the dissolved oxygen in the water is not less than 4.0mg / L;

[0039] (3) Breeding of broodstock in non-breeding seasons

[0040] a. Feed and dosage: Feed includes the following components by weight: 20 parts of squid, 17 parts of blue round carp and 5 parts of soybean meal; make a ball with a suitable broodstock caliber, and feed it once a day, and feed it each time The amount is 2.0% of the body weight of broodstock;

[0041] b. Cultivation water temperature: 20-23°C;

[0042] c. Water quality management: change the water every day, the water change volume is 15-20% of the pond water volume, and keep th...

Embodiment 2

[0055] A kind of artificial breeding method of japonica, comprising the following steps:

[0056] (1) Parent selection

[0057] Select the 3-year-old, 2-3kg P. chinensis as the parent;

[0058] (2) Parental breeding pond

[0059] The pond area for cultivating parents is 3 mu, the water depth is 3.5m, the breeding density is 70 tails / mu, and the ratio of male to female is 1:1; the dissolved oxygen in the water is not less than 4.0mg / L;

[0060] (3) Breeding of broodstock in non-breeding seasons

[0061] a. Feed and dosage: Feed includes the following components by weight: 30 parts of squid, 21 parts of blue round carp and 10 parts of soybean meal; make a ball with a suitable broodstock caliber, feed the feed once a day, and feed it each time The amount is 3.0% of the body weight of broodstock;

[0062] b. Cultivation water temperature: 26-28°C;

[0063] c. Water quality management: change the water every day, the water change volume is 15-20% of the pond water volume, and ...

Embodiment 3

[0076] The difference between embodiment 3 and embodiment 2 is:

[0077] In the step (3), the feed comprises the following components in parts by weight: 20 parts of squid, 20 parts of blue squid and 10 parts of soybean meal.

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Abstract

The invention provides an artificial propagation method of plectorhinchus cinctus. The method comprises the following steps: (1) parent selection; (2) a parental cultivation pond; (3) cultivation of parent fish in an anestrous season; (4) intensifying cultivation before propagation; (5) artificial inducement for spawning; and (6) incubation of fertilized ova. By reasonable cultivation and management, the method can cause the sexual glands of plectorhinchus cinctus parent fish to achieve synchronous maturity, the mature time is one month earlier (the mating season of plectorhinchus cinctus is generally from April to May, and the method can complete fertilization in early March), meanwhile, the fertilization rate and hatchability can be increased to 95%, and the malformation rate is reducedto 1%.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an artificial propagation method of pepper bream. Background technique [0002] Plectorhinchus cinctus, the Latin name of Plectorhinchus cinctus, belongs to the family Perchidae and the genus Pepperbream. It is commonly known as Iron Mother, False Baogong, and Banjiaji. Pepper, hence the name flower tail pepper snapper. The body of the pepper bream is round, elongated and flat on the sides, and the weight of adult fish can reach about 5kg. Its meat is plump and nutritious, and it is favored by the audience and has high economic value. [0003] Peppered bream is distributed in the South my country Sea, East China Sea and Yellow Sea, etc., but the quantity is not large. After many years of large-scale fishing, the number of broodstock and seedlings caught in natural sea areas has been decreasing year by year, and it has been difficult to meet people's needs. At present, some...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/17A23K10/22A23K10/30A23K20/105A23K20/142A23K20/147A23K20/158A23K20/174A23K50/80
CPCA23K10/22A23K10/30A23K20/105A23K20/142A23K20/147A23K20/158A23K20/174A23K50/80A01K61/10A01K61/17Y02P60/87Y02A40/81Y02A40/818
Inventor 陈猛猛吴光灿蔡四川蔡春有蔡有森黄春仁蔡镇辉蔡建顺蔡惠明蔡金泉
Owner HAINAN CHENHAI AQUATIC CO LTD
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