
Shrimp sampling involves the periodic collection of shrimp samples using cast nets or by checking them in feeding trays to monitor their growth, health, and survival rate. Through sampling, farmers can track average body weight, survival rate, and detect early signs of stress or disease.
Sampling aims to
- Identify shrimp growth based on the average body weight (ABW).
- Monitor shrimp survival rate (SR).
- Observe shrimp uniformity.
- Optimize feed management by calculating the Feed Conversion Ratio (FCR).
- Detect early signs of disease or stress in shrimp.
Given the importance of sampling, it should be done carefully and effectively. How? Find out in the discussion below.
Tips for Determining Sampling Time and Frequency
Just like other farm management practices, shrimp sampling should be planned thoughtfully. In this case, timing and frequency are key to ensuring that farmers can monitor shrimp conditions effectively.
Here are some practical tips to do it:
- Conduct sampling regularly from the time shrimp fry are stocked until harvest, ideally once a week or every 5–7 days.
- Avoid sampling during molting periods to ensure more accurate results.
- Perform sampling 2–3 hours after feeding to obtain representative growth data.
- Sample during cooler parts of the day like early morning or late afternoon is ideal.