NCERT Important Questions Class 9 Science biology Chapter 15
Important NCERT Extra Questions
Chapter 15 Improvement in Food Resources
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
what is the major problem faced in fish farming? How can it be overcome.
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Major problem of fishery (or fish farming). It is procurement of pure seeds 9f high quality fish. This problem his been solved through hypophysation or hormonal treatment of selected fishes in breeding hapas.