In the batch system of freshwater prawn culture, which problem is found?

Correct option is B

Correct Answer: (b) Heterogeneous individual growth rate
Explanation:
→ Batch culture often shows wide size variation among individuals due to dominance hierarchies and cannibalism, leading to heterogeneous growth rates.
→ This complicates uniform harvesting and marketing.
Information Booster:
→ Management (size grading, shelter provision) reduces heterogeneity and cannibalism.
Additional Information (Other Options):
(a) Predation/competition may occur but heterogeneity is the hallmark issue; (c) differential harvesting follows heterogeneity; (d) not necessarily true.