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

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 ...

Examples

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...

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 ...

Examples

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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