Cultivation technique of Sparus macrocephalus fry

A technology for fish fingerling breeding and fry seeding, which is applied in the field of black sea bream seedling cultivation, can solve the problems such as the drop of seedling raising rate, achieve the effects of fresh water quality, increase protein and energy digestibility, and prevent the occurrence of diseases

Inactive Publication Date: 2017-10-13
舟山市普陀兴海养殖优质种苗选育研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This cultivation method makes coho salmon in the best cultivation and living environment through the selection of parameters such as cultivation pond conditions, additives, feeding feed, feeding amount and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A black sea bream fry breeding technology, including nursery pond preparation, water quality cultivation, fingerling cultivation, fry cultivation, disease and insect pest control, specifically:

[0017] 1) Preparation of nursery pond: prepare an indoor nursery pond with a circulation system, disinfect the nursery pond with 10mg / L potassium permanganate solution, clean the water, and inject the culture seawater, the salinity of the culture seawater is 20‰ , The water temperature is 20℃, the pH is 8, the dissolved oxygen content is 6mg / L, the ammonia nitrogen content is less than 0.1mg / L, spare, the nursery pond uses the circulation system to treat the cultivation wastewater for recycling, which can keep the water fresh and reduce the environment Pollution, improve resource utilization, and use natural seawater that has reached the preset breeding index to cultivate black sea bream fry with less risk, shorter cycle, high efficiency and better breeding quality;

[0018] 2) Wate...

Embodiment 2

[0025] A black sea bream fry breeding technology, including nursery pond preparation, water quality cultivation, fingerling cultivation, fry cultivation, disease and insect pest control, specifically:

[0026] 1) Preparation of nursery pond: prepare an indoor nursery pond with a circulation system, disinfect, clean, and inject culture seawater. The salinity of the culture seawater is 25‰, the water temperature is 18℃, the pH is 7.8, and the dissolved oxygen content is 5mg / L. Ammonia nitrogen content <0.1mg / L, spare;

[0027] 2) Water quality cultivation: the initial seedling pond water level is 80cm, the organic fertilizer is applied according to 128kg / mu, after 3 days, the inorganic fertilizer: urea 2-4kg / mu, superphosphate 1kg / mu, and add water every day to make the transparency 40cm, standby , The fertilizer in the nursery pond can provide rich food and nutrient elements for phytoplankton, the abundance of plankton in the pond is obviously increased, and the phytoplankton also p...

Embodiment 3

[0034] A black sea bream seed breeding technology, specifically:

[0035] Prepare an indoor nursery pond with a circulation system, disinfect and clean, and inject a culture seawater with a salinity of 18‰, a water temperature of 20°C, a pH of 8, a dissolved oxygen content of 6mg / L, and an ammonia nitrogen content of <0.1mg / L. The water level of the nursery pond is 85cm, organic fertilizer is applied, and inorganic fertilizer is added after 3 days, and water is added every day to make the transparency 36cm. The fry are stocked at a stocking density of 140,000 fish / mu, and the feeding rate is 4% of the body mass. The feeding frequency is 7 times / day, and the light is constant for 15 hours / day. After entering the pond, you need to visit the pond in the morning and evening to observe the eating situation. Put anti-pest and pest immune agents into the nursery pond every 8 days, and treat the diseased fish in time to avoid infection .

[0036] The ingredients and weight parts of the fe...

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Abstract

The invention discloses a cultivation technique of Sparus macrocephalus fry, comprising the specific steps of sterilizing and washing a cultivation pond, and injecting cultivation sea water; applying fertilizer into the cultivation pond, and keeping transparency to 30-40 cm; subjecting female and male parents of Sparus macrocephalus to mixed culture to obtain fertilized eggs, and hatching; stocking fry, and cultivating according to a feeding rate that is 3-5% by mass of fed objects under the feeding frequency of 5-7 times per day, with lighting constantly 13-15 hours per day; adding a disease- and pest-resistant immunizing agent. The cultivation technique has the advantages that water can be kept fresh in the cultivation technique so that a good growth environment is provided for fry cultivation; sufficient nutrients can be provided for fry, and Sparus macrocephalus fry with good growth condition and high product quality can be cultivated; resource utilization rate is high, zero environmental pollution is caused, the cultivation period is short, and the cultivation technique has high economic benefit and social benefit and has a promising development prospect.

Description

Technical field [0001] The invention relates to the field of aquatic product breeding, in particular to a black sea bream fry breeding technology. Background technique [0002] Black snapper is a shallow-sea fish with a flat side and oblong shape. The head is large, the front end is blunt and pointed, and the first dorsal fin has hard spines 11-12 and soft strips 12. There are 3 pairs of anterior canine teeth in each of the two jaws, followed by well-developed molars, 4-5 rows on the upper jaw side, 3-4 rows on the mandibular side, and 3 pairs of anterior canine teeth on each hoe, followed by very developed molars. The molars are 4-5 rows on the maxillary side and 3-4 rows on the mandibular side. There are no teeth on the hoe bone and the cranium. There is no scale between the eyes and the lower part of the front operculum. There are 6-7 scales on the lateral line, blue-gray body, black spots at the starting point of the lateral line, and several black horizontal bands on the ...

Claims

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Application Information

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IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 施晓峰
Owner 舟山市普陀兴海养殖优质种苗选育研究所
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