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Efficient artificial fry breeding method of outdoor ecological pond for Cephalopholis sonnerati

An ecological pond and red nine technology, applied in chemical instruments and methods, food processing, biological water/sewage treatment, etc., can solve the problem of large-scale production of red sea bass seeds and affect the survival of artificial seedlings of red sea bass rate, emergence rate, and high deformity rate, to achieve the effects of improving survival rate and growth quality, enhancing active feeding ability, and increasing the incidence of feeding

Active Publication Date: 2020-05-26
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing artificial breeding technology for red sea bass is in its infancy. In the artificial fry process of red sea bass, there are problems of low survival rate of larvae and juveniles and high deformity rate.
In the early development stage before the age of 30 days, the larvae have poor adaptability to bait switching and low food intake, and are prone to slow growth and deformity of the larvae; especially the larvae before the age of 7 days are weak in active feeding ability, and they are prone to larvae due to early Death due to malnutrition greatly affects the survival rate and emergence rate of artificial seedlings of red sea bass
Therefore, it is difficult to realize the large-scale production of the seed of effective red sea bass at present, and the phenomenon that seed lacks occurs in the factory culture of red sea bass

Method used

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  • Efficient artificial fry breeding method of outdoor ecological pond for Cephalopholis sonnerati

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The outdoor ecological pond artificial breeding method of embodiment 1-a kind of efficient red nine perch, comprises the steps:

[0033] (1) Pre-treatment of cultivation environment:

[0034] Select an outdoor pond with a water level depth of 1.5m. After removing the sundries at the bottom of the pond and disinfecting it, dry the pond continuously for 7 days, inject filtered and sterilized seawater, and evenly sprinkle bio-organic fertilizer 16kg / m on the pond. 3 ; and one week before the newly hatched larvae enter the pond, add 0.02mg / L of complex bacteria every day, and Nannochloropsis and Spirulina with a mass ratio of 1:3, and the water body will maintain a transparency of 35-42cm;

[0035] (2) stocking in ponds:

[0036] The newly hatched larvae were placed at a density of 6000 fish / m 3 Put it into the pool, the temperature of the water in the pool is 25°C, the salinity of the pool is 29, and the pH value is 7.6;

[0037] (3) Feeding management before 7 days of ...

Embodiment 2

[0048] Embodiment 2-a kind of outdoor ecological pond artificial seedling raising method of efficient red nine perch, comprises the steps:

[0049] (1) Pre-treatment of cultivation environment:

[0050] Select an outdoor pond with a water level depth of 2.5m. After removing the debris at the bottom of the pond and disinfecting it, dry the pond continuously for 10 days, inject filtered and sterilized seawater, and evenly sprinkle 20kg / m of bio-organic fertilizer on the pond 3 ; And one week before the newly hatched larvae enter the pond, add 0.03mg / L of complex bacteria every day, and Nannochloropsis and Spirulina with a mass ratio of 1:5, and the water body will maintain a transparency of 35-42cm;

[0051] (2) stocking in ponds:

[0052] The newly hatched larvae were placed at a density of 10,000 fish / m 3 Put it into the pool, the water temperature in the pool is 27°C, the salinity in the pool is 32, and the pH value is 8.4;

[0053] (3) Feeding management before 7 days of ...

Embodiment 3

[0062] Embodiment 3-a kind of outdoor ecological pond artificial seedling raising method of efficient red nine perch, comprises the steps:

[0063] (1) Pre-treatment of cultivation environment:

[0064] Select an outdoor pond with a water level depth of 1.8m, remove the debris at the bottom of the pond and disinfect it, then dry the pond continuously for 9 days, inject filtered and sterilized seawater, and evenly sprinkle bio-organic fertilizer 18kg / m on the pond 3 ; and one week before the newly hatched larvae enter the pond, add 0.025mg / L of complex bacteria every day, and Nannochloropsis and Spirulina with a mass ratio of 1:4, and the water body will maintain a transparency of 35-42cm;

[0065] (2) stocking in ponds:

[0066] The newly hatched larvae were placed at a density of 8500 fish / m 3 Put it into the pool, the water temperature in the pool is 26°C, the salinity in the pool is 32, and the pH value is 7.8;

[0067] (3) Feeding management before 7 days of age

[006...

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Abstract

The invention provides an efficient artificial fry breeding method of an outdoor ecological pond for Cephalopholis sonnerati. The method includes the following steps: (1) performing pretreatment on cultivation environment; (2) putting newly hatched larvae in a pond; (3) performing feeding management before 7 days old, feeding rotifer and euglena gracilis klebs every day when the larvae are 3-5 days old; feeding fortified powder bait every day when the larvae are 4-7 days old, the fortified powder bait including papaya powder, green tangerine powder, yeast powder and active lactobacillus powder; and feeding the rotifer and artemia nauplii every day when the larvae are 6-7 days old; (4) performing feeding management before 7 days old, and respectively and continuously feeding transition baitfor 3-4 days when the larvae are 10 days old and 20 days old; and (5) performing water quality regulation. Thus, the active feeding ability of the larvae before 7 days old can be effectively enhanced; the larvae can be effectively promoted to better adapt the replacing of the bait; the individual nutrient balance and growth balance of the larvae can be enhanced; malformation rates can be reduced;and the survival rates and growth quality of fries can be increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an efficient artificial seedling raising method for red sea bass in an outdoor ecological pond. Background technique [0002] Cephalopholis sonnerati (Cephalopholis sonnerati), commonly known as reticulated carp, cross fish, grouper, red rudder, red melon seed spot, is a fish belonging to the genus Cephalopholis sonnerati of the ray-finned fishes Perciformes suborder Percisidae . The body is red, with dark brown reticulation on the head and front of the back, without spots and stripes. There are no canines in the middle of the lower jaw, and the anal fin has 3 spines and 9 rays. Caudal fin rounded, without stripes. As a high-grade edible fish on the existing market, red sea bass is very popular among consumers. [0003] The existing artificial breeding technology for the red sea bass is in its infancy. In the artificial fry process of the red sea bass, there are problems ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/20A23K10/22A23K10/30A23K10/18A23K20/174C02F3/32C02F3/34C02F103/20C02F103/08
CPCA01K61/10A23K50/80A23K10/20A23K10/22A23K10/30A23K10/18A23K20/174C02F3/322C02F3/34C02F2103/20C02F2103/08Y02A40/81Y02P60/87
Inventor 蔡春有李伟蔡有森蔡建顺黄春仁蔡四川蔡金泉蔡惠明张国庆蔡智怀陈猛猛吴光灿陈艺斌刘赐福蔡艺新王景宝罗磊李伟峰
Owner HAINAN CHENHAI AQUATIC CO LTD
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