12
Herbs are incorporated in the fish diet to enhance which of the following?
EXPLANATION
Immunonutrition, Natural Immunostimulants, Ph
- Phytogenics and Herbal Feed Additives:
- Incorporating medicinal herbs and plant extracts (e.g., Allium sativum [garlic], Ocimum sanctum [tulsi], Zingiber officinale [ginger], Withania somnifera [ashwagandha], and Phyllanthus niruri) into aquafeeds is widely practiced to enhance non-specific immunity and disease resistance.
- These herbs contain active phytochemicals (allicin, flavonoids, polyphenols, essential oils, and polysaccharides) that stimulate phagocytic activity, lysozyme secretion, respiratory burst, and serum complement activity.
- nalysis:
- (Immunity): Correct. Primary therapeutic aim is immunomodulation and disease defense.
- Options 1, 3, 4: Incidental secondary properties compared to immune enhancement.
Correct option: (2) Immunity
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