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Daily Check List

Weekly Check List

Monthly Monitoring

Feed Requirements

Essential Nutrients

Additional Nutritional Factors

Feeding Regime

Water Quality Requirements

Water Quality Action and Reaction

Water Quality Management and Biofilter Maintenance

Post larval fitness parameters

Post Larva Acclimitation


Risk Management, Bio-security and HACCP Implementation


System Disinfection Procedures

Equipment Maintenance

Record Keeping and Report Templates


Gill Examination

Used to assess the physical condition of the gills.

Equipment Required: Scissors and forceps. Clean glass slides and cover slips. 2.5% saline solution. Compound microscope with 10x, 40x and 100x eyepieces and 40x and 100x objectives.

Procedure: Collect 10 shrimp from the tank and hold live. Sacrifice each shrimp by severing the ventral nerve cord between the body and abdomen (tail). Gently remove the cuticle over one side of the gill chamber, clip off several gill filaments, place on a clean glass slide in a drop of saline solution and cover with a coverslip. Examine under 10x and 400x magnification for the following:

  • Grade of filamentous bacterial infection.

  • Grade of protozoan infection.

  • Grade of detrital and algal fouling.

  • Grade of melanized cuticle lesions.

  • Grade of internal melanized tissue or nodules.



Variables to be used in health evaluation

Health evaluation tests
Wet Mount Procedure . PL visual examination . Stress test for post larva . You are here . Mid-gut Examination . Stomach Contents Analysis

Shrimp Diseases
Hepatopancreatic parvo-like virus (HPV) . Reo-like virus (REO) . Lymphoid organ vacuolization virus (LOVV) . Taura Syndrome Virus (TSV) . Rhabdovirus of Penaeid Shrimp (RPS) . White Spot Syndrome Virus (WSSV) . Infectious hypodermal and hematopoietic virus (IHHNV) . Baculovirus penaei (BP)
Bacterial Diseases
Vibriosis . Epicommensal fouling disease (filementous bacteria) . Necrotizing Hepatopancreatitis (NHP) . Black spot disease (BSD) . Mycobacteriosis
Fungal Diseases
Larval mycosis . Fusariosis
Haplosporidia . Gregarines . Cotton Disease
Black Gill Disease (BGD) Dissolved Oxygen Crisis Nitrogen Gas Bubble Disease

Disease control
Decreasing density, partial or early harvests . Drugs, chemicals and treatments . Sanitation