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Preliminary identification of the disease based on gross observations and circumstantial evidences is referred to as
EXPLANATION
Nutritional Deficiency Syndromes
- Levels of Disease Diagnosis in Aquaculture:
- Presumptive Diagnosis (Level I): A preliminary diagnosis formulated rapidly based on gross clinical signs, external lesions, behavioral abnormalities, and circumstantial pond environmental evidences, before laboratory confirmation.
- Clinical / Confirmatory Diagnosis (Level II & III): Confirms the exact etiological agent using parasitology, histopathology, bacteriological isolation, and molecular assays (PCR/sequencing).
- Correct Option: Option 3 (Presumptive diagnosis).
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