SC/T 2099-2019 in English
VALIDTechnical specification of artificial breeding for bastard halibut
- Issued on:2019-08-01
- Implemented on:2019-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$88.00
| Standard No: | SC/T 2099-2019 |
| Document status: | VALID |
| Title in English: | Technical specification of artificial breeding for bastard halibut |
| Title in Chinese: | 牙鲆人工繁育技术规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2019-08-01 |
| Implemented on: | 2019-11-01 |
| Professional Classification: | SC-Aquaculture |
| Related Keywords: | technical links key parameters innovation points broodstock cultivation density2-4kg/m²
technical specification technical requirements technical parameters temperature control plan |
| Related Topics: | is 2099
hpce Flounder order artificial breeding Brown flounder Flounder Breeding Dragon Tooth tooth artificial breeding technology |
Introduction
Interpretation of the core content of the standard
This standard systematically specifies the technical requirements for the entire process of flounder (Paralichthys olivaceus) from broodstock selection to fry pond release, with key points including:
| Technical links | Key parameters | Innovation points |
|---|---|---|
| Broodstock cultivation | Density2-4kg/m², female-to-male ratio 1:1-2:1 | For the first time, the light regulation standard for autumn fish production is clarified |
| Hatchery management | Water temperature is 15±1℃, density is 50,000-100,000 eggs/m³ | Propose a temperature control plan for the transportation of fertilized eggs in plastic bags |
| Fish larvae and juveniles cultivation | Density is 10,000 tails/m³ in the early stage, and 1,000-2,000 tails/m³ in the later stage | Establish a step-by-step feed conversion system |
Key technological breakthroughs
1. Optimization of broodstock cultivation system
The standard innovatively divides broodstock cultivation into conventional cultivation (Chapter 4.3) and special cultivation for autumn spawning (Chapter 4.4), among which:
- Light control: 200-500lx artificial light starting 30 days before spawning
- Temperature control: Use 15℃ constant temperature stimulation method to promote gonadal development
- Nutrition fortification: It is recommended to use soft pellet feed containing ω-3 fatty acids
2. Hatching technology innovation
For the first time, the technical parameters for fertilized egg transportation were standardized:
Case: Weihai Shenghang Aquatic Products adopted this standard transportation plan to increase the survival rate of fertilized eggs from 65% to 89%. The key measures include:
- Use double-layer polyethylene bags (20×40cm)
- The oxygen supply volume is kept at 2/3 of the bag volume
- Add ice packs to cool down the environment above 18℃
Implementation Suggestions
1. Key points of facility renovation
According to the requirements of Chapter 3.1, it is recommended that the hatchery should focus on the following improvements:
- Circulating water system: Add microfiltration machine + protein separator
- Bait workshop: Set up a three-level adjustable lighting culture room (light transmittance ≥ 70%)
- Emergency system: Equipped with dual circuit power supply + liquid oxygen tank
2. Disease prevention and control strategy
Based on the prevention and control plan in Appendix A, it is recommended to establish a three-level prevention and control system:
| Prevention and control level | Measures | Implementation standards |
|---|---|---|
| Primary prevention | Vaccine immunization + water quality control | SC/T 1132 |
| Secondary control | Low salinity (8-10) soaking | 3h×4 times per day |
| Third-level treatment | Hydrogen peroxide bath | 100-150mg/L |
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