How to Raise Catfishes - Quiz
  • 1. What is the ideal water temperature for catfish farming?
A) 35-40°C
B) 5-10°C
C) 26-30°C
D) 10-15°C
  • 2. Which of these is a common catfish species used in aquaculture?
A) Salmo salar
B) Clarias gariepinus
C) Cyprinus carpio
D) Oncorhynchus mykiss
  • 3. What is the recommended stocking density for catfish in ponds?
A) 20-30 fish/m²
B) 100+ fish/m²
C) 5-10 fish/m²
D) 50-60 fish/m²
  • 4. What is the primary food source for catfish in intensive farming?
A) Zooplankton
B) Commercial feed
C) Algae
D) Detritus
  • 5. What is the approximate protein requirement in catfish feed?
A) 5-10%
B) 28-32%
C) 40-45%
D) 10-15%
  • 6. Which water quality parameter is crucial to monitor in catfish ponds?
A) Temperature
B) Water clarity
C) pH
D) Dissolved oxygen
  • 7. What is the recommended pH range for catfish farming?
A) 4.0-5.0
B) 9.0-10.0
C) 6.5-8.5
D) 2.0-3.0
  • 8. Which of the following is a common disease affecting catfish?
A) Columnaris
B) Ichthyophthirius
C) Tuberculosis
D) Saprolignia
  • 9. What is a common method for preventing diseases in catfish farming?
A) Overfeeding
B) High stocking density
C) Water quality management
D) Ignoring water parameters
  • 10. How often should catfish ponds be fertilized?
A) Never
B) Daily
C) Depending on nutrient levels
D) Weekly
  • 11. What is the purpose of aeration in catfish ponds?
A) Reduce water temperature
B) Decrease pH
C) Increase dissolved oxygen
D) Remove algae
  • 12. What is the typical harvest size for catfish?
A) 5+ kg
B) 0.1-0.2 kg
C) 2-3 kg
D) 0.5-1 kg
  • 13. What is the most common method of harvesting catfish?
A) Dynamite fishing
B) Hook and line
C) Electrofishing
D) Seine netting
  • 14. What type of pond is generally recommended for catfish farming?
A) Plastic pond
B) Concrete pond
C) Earthen pond
D) Glass pond
  • 15. What is the importance of pond preparation before stocking?
A) Attracts predators
B) Decreases water quality
C) Removes predators and competitors
D) Increases algae growth
  • 16. What is the role of probiotics in catfish farming?
A) Reduce oxygen levels
B) Increase water turbidity
C) Improve gut health
D) Kill bacteria
  • 17. Why is water exchange important in catfish ponds?
A) Decreases fish growth
B) Increases disease outbreaks
C) Maintains water quality
D) Reduces feed efficiency
  • 18. What is the effect of high ammonia levels in catfish ponds?
A) Increases oxygen levels
B) Toxic to fish
C) Reduces algae blooms
D) Beneficial for growth
  • 19. What is the ideal depth for a catfish pond?
A) 1-1.5 meters
B) 3+ meters
C) 2.5 meters
D) 0.5 meters
  • 20. What is the purpose of liming catfish ponds?
A) Adjust pH
B) Decrease oxygen
C) Increase salinity
D) Remove algae
  • 21. What is the advantage of using formulated feed?
A) Lower cost
B) Slower growth
C) Balanced nutrition
D) Less water pollution
  • 22. How can you manage aquatic weeds in catfish ponds?
A) Manual removal
B) Increasing fish density
C) Decreasing water depth
D) Adding fertilizer
  • 23. What is the purpose of a feed trial?
A) Determine the best feed
B) Increase mortality
C) Reduce growth rate
D) Lower water quality
  • 24. What should be monitored during a feed trial?
A) Air temperature
B) Cloud cover
C) Soil type
D) Growth rate
  • 25. What is the optimal feeding frequency for juvenile catfish?
A) Once a week
B) 3-4 times per day
C) Only at night
D) Once a day
  • 26. What is a common sign of oxygen depletion in a catfish pond?
A) Clear water
B) Fish swimming actively
C) Fish gasping at the surface
D) Algae bloom
  • 27. What is the importance of biosecurity in catfish farming?
A) Promote algae growth
B) Reduce fish growth
C) Prevent disease introduction
D) Increase production costs
  • 28. What is the purpose of grading catfish?
A) Reduce growth rate
B) Promote cannibalism
C) Increase disease transmission
D) Separate fish by size
  • 29. What is a common method for controlling snails in catfish ponds?
A) Increasing water depth
B) Adding sugar
C) Biological control
D) Reducing aeration
  • 30. What is the benefit of integrated fish farming?
A) Resource recycling
B) Higher input costs
C) Increased pollution
D) Reduced productivity
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