Post-Larval Stage Specifications

Technical specifications for our post-larval stages with characteristics, suitability guidelines, and handling recommendations.

Understanding PL Stages

Post-larval (PL) stages represent critical development phases in Vannamei shrimp production. Each stage exhibits distinct characteristics in size, appearance, and physiological development that determine suitability for different farming conditions.

Selecting the appropriate PL stage depends on farm infrastructure, water quality management capabilities, and operational experience. Our technical team provides guidance on stage selection based on specific farming conditions.

PL Stage Specifications

PL8

8 Days Post-Larval

Characteristics

  • Size: 6-7 mm average length
  • Age: 8 days post-metamorphosis
  • Appearance: Transparent body, visible digestive tract, active swimming behavior

Suitability

  • Farming Conditions: Nursery systems with controlled water quality and feeding protocols
  • Recommended For: Experienced operators with nursery infrastructure and technical monitoring capabilities

Quality Indicators

  • Uniform size distribution within batch
  • Active swimming and feeding response
  • Clear body with no visible abnormalities
  • Negative PCR test results for major pathogens

Handling Guidelines

  • Gradual acclimatization to farm water parameters over 30-45 minutes
  • Maintain oxygen levels during transport and stocking
  • Stock during cooler hours to minimize temperature stress
  • Implement immediate feeding protocol post-stocking

PL10

10 Days Post-Larval

Characteristics

  • Size: 7-8 mm average length
  • Age: 10 days post-metamorphosis
  • Appearance: Developing pigmentation, stronger swimming patterns, increased activity

Suitability

  • Farming Conditions: Nursery or well-prepared grow-out ponds with stable water quality
  • Recommended For: Farms with moderate infrastructure and water quality management systems

Quality Indicators

  • Consistent size uniformity across batch
  • Vigorous swimming and feeding behavior
  • Developing rostrum and appendages
  • Verified pathogen-free status through testing

Handling Guidelines

  • Acclimatization period of 30-45 minutes to match farm conditions
  • Monitor dissolved oxygen during transport and stocking process
  • Stock during early morning or evening hours