African catfish culture

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Across
  1. 4. Hormone used for induce breeding
  2. 6. Minimum dissolved oxygen for larvae
  3. 7. First feeding
  4. 8. An indicator of a high quaility eggs
  5. 9. Treatment for trematodes
  6. 11. Treatment for white spot, ..... bath
  7. 13. African catfish
  8. 14. Natural breeding occurs at
  9. 15. Disadvantage of hybrids is higher ......
  10. 16. Major factor regulating the age/size at first maturity
  11. 17. Artificial breeding increase
  12. 18. Malaysian native catfish
  13. 19. Advantage of hybrids is faster .......
Down
  1. 1. External sexual dimorphism
  2. 2. Female reproduction organ
  3. 3. Stimuli for gonadal development and spawning
  4. 5. Represent a maximum of 2-4% of the total body weight.
  5. 10. Cause irritation and lethargy
  6. 12. Producing aquatic organisms with specific desirable traits
  7. 13. Method for egg sampling