Excess use of organic manure in freshwater fish farming may cause a disease like ______?

Excess use of organic manure in freshwater fish farming may cause a disease like ______?

میٹھے پانی کی مچھلی کی فارمنگ میں نامیاتی کھاد کا زیادہ استعمال ______ جیسی بیماری کا سبب بن سکتا ہے؟
Explanation
  • Excessive organic manure leads to water pollution.
  • It promoting bacterial growth that causes gill rots.
  • This condition damages fish gills, impairing respiration and leading to high mortality.
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