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Additional Nutritional Factors
Water Quality Action and Reaction
Water Quality Management and Biofilter Maintenance
Post larval fitness parameters
YOU ARE IN HEALTH MANAGEMENT
Risk Management, Bio-security and HACCP Implementation
System Disinfection Procedures
Record Keeping and Report Templates
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Stomach Contents Analysis
To determine what the shrimp are eating.
Equipment Required: Scissors and forceps. Clean glass slides and cover slips. 2.5% saline solution. Compound microscope with 10x eyepieces and 4x and 10x 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 dorsal cuticle from just behind the eyes to the end of the carapace to expose the stomach and hepatopancreas. With the forceps grasp the posterior of the stomach and gently lift up and separate from the heapatopancreas. Sever the esophagus and remove the stomach. Open the stomach along the dorsal mid-line and transfer a drop of the stomach contents to a clean glass slide. Add saline solution and cover with a coverslip. Examine under 10x and 40x magnification for the following:
Relative percentage of feed pellet present
Relative percentage of detritus present
Other observations
. HEALTH MANAGEMENT & DISEASE CONTROL INDEX
Variables to be used in health evaluation
Health evaluation tests
Wet Mount Procedure . PL visual examination . Stress test for post larva . Gill examination . Mid-gut Examination . You are hereShrimp Diseases
Viruses
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
Protozoans
Haplosporidia . Gregarines . Cotton Disease
Other
Black Gill Disease (BGD) Dissolved Oxygen Crisis Nitrogen Gas Bubble DiseaseDisease control
Decreasing density, partial or early harvests . Drugs, chemicals and treatments . Sanitation.