A kind of outdoor artificial breeding method of snapper

A kind of artificial technology of snapper, which is applied in the field of outdoor artificial nursery of snapper, which can solve the problems of low growth rate of larvae, low survival rate, and high-efficiency nursery, so as to meet production needs and high survival rate , the effect of accelerated growth

Active Publication Date: 2021-03-16
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are few reports on outdoor artificial breeding methods of snappers. The reported methods usually have a low survival rate, only about 70%, and the growth rate of larvae is not high, and high-efficiency breeding has not yet been achieved.

Method used

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  • A kind of outdoor artificial breeding method of snapper

Examples

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Comparison scheme
Effect test

Embodiment 1

[0037] An outdoor artificial breeding method for snappers comprising the following steps:

[0038] 1) Select a nursery pond: select a pond with an area of ​​2 mu and a water depth of 1.5m as the nursery pond, and set a circle of aerated stones at a distance of 1.5m from the edge of the nursery pond, and the distance between adjacent aerated stones is 2m.

[0039] 2) Cloth seedlings:

[0040] Add Bacillus subtilis to the nursery pond one day in advance, and the content of Bacillus subtilis is about 1.0×10 2 cfu / mL water body; then put in 3-day-old larvae, and the stocking density of larvae is 80 fish / m 3 , keep the content of Bacillus subtilis constant every day;

[0041] When they are cultivated to 10 days old, use a 12-mesh sieve to classify the fry, and use spacers to divide the nursery pond into Zone A and Zone B. Put the sieved fry into Zone A, and put the unscreened fry into Zone B; Zone A Loudspeakers and LED underwater fish-collecting lights (LED underwater fish-coll...

Embodiment 2

[0059] An outdoor artificial breeding method for snappers comprising the following steps:

[0060] 1) Select a nursery pond: select a pond with an area of ​​2 mu and a water depth of 2.0m as the nursery pond, and set a circle of aerated stones at a distance of 2m from the edge of the nursery pond, and the distance between adjacent aerated stones is 3m.

[0061] 2) Cloth seedlings:

[0062] Add Bacillus subtilis to the nursery pond one day in advance, and the content of Bacillus subtilis is 1.3×10 3 cfu / mL water body; then add 3-day-old larvae, and the stocking density of larvae is 120 fish / m 3 , keep the content of Bacillus subtilis constant every day;

[0063] When they are cultivated to 10 days old, use a 12-mesh sieve to classify the fry, and use spacers to divide the nursery pond into Zone A and Zone B. Put the sieved fry into Zone A, and put the unscreened fry into Zone B; Zone A Loudspeakers and LED underwater fish-collecting lights (LED underwater fish-collecting lig...

Embodiment 3

[0081] The difference between embodiment 3 and embodiment 2 is:

[0082] The SM-type rotifers and L-type rotifers were enriched with chlorella for 12 hours before feeding, and the strengthening conditions were: chlorella 1×10 6 rotifers / mL, dissolved oxygen not less than 5mg / L, salinity 18-20, rotifer density 1.0×10 5 ~1.3×10 5 a / L.

[0083] Artemia nauplii were fortified with emulsified cuttlefish oil and chlorella for 6 hours before feeding. The enhanced conditions were: emulsified cuttlefish oil 0.06g / L, chlorella 1×10 6 individual / mL, dissolved oxygen not less than 5mg / L, salinity 25-28, Artemia nauplius density 1.9×10 5 ~2.2×10 5 a / L.

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Abstract

The invention provides an outdoor artificial breeding method of emperor red snapper. The method includes the following steps of firstly, selecting a breeding pond; secondly, distributing fry; thirdly,regulating and controlling the pH value, water temperature, salinity and oxygen dissolving amount in the breeding period; fourthly, conducting feeding. By comprehensively regulating and controlling the pH value, water temperature, salinity, oxygen dissolving amount, feed and the like of all breeding stages, in combination with a sound wave and illumination treatment method, the efficient breedingof the emperor red snapper is realized. Through the method, the survival rate of the emperor red snapper is up to 99%, and the body mass of juvenile fish is up to 6.92 g when the fish is 30 days oldand is increased by about 30%.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an outdoor artificial breeding method for snappers. Background technique [0002] Chuanwen snapper (Lutjanus sebae), also known as millennium snapper, kowtow swallow, red fish, red chicken, is a fish of the order Perciformes, Snapperidae, and the genus Snapper. The side of the body is flat, the fish body is silvery white, and there are 3 obvious dark red wide oblique bands on the side of the body, which are shaped like the word "Chuan", hence the name. Chuanwen snapper is a warm-water near-bottom fish, mainly distributed in the Indo-West Pacific Ocean, and it is mainly produced in the South China Sea in China. Sichuan snapper is rich in protein, calcium, potassium, selenium and other nutrients. It is rich in nutrition and can be eaten by the general population. It is especially suitable for people with loss of appetite, indigestion, and postpartum weak blood. It is a highly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A23K10/20A23K10/30A23K20/105A23K20/142A23K20/147A23K20/158A23K20/174A23K50/80
CPCA23K10/20A23K10/30A23K20/105A23K20/142A23K20/147A23K20/158A23K20/174A23K50/80A01K61/10Y02A40/81Y02A40/818
Inventor 蔡镇辉蔡春有蔡有森黄春仁蔡四川蔡建顺蔡惠明蔡金泉
Owner HAINAN CHENHAI AQUATIC CO LTD
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