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