A) 35-40°C B) 26-30°C C) 5-10°C D) 10-15°C
A) Cyprinus carpio B) Clarias gariepinus C) Salmo salar D) Oncorhynchus mykiss
A) 50-60 fish/m² B) 20-30 fish/m² C) 100+ fish/m² D) 5-10 fish/m²
A) Zooplankton B) Detritus C) Algae D) Commercial feed
A) 40-45% B) 10-15% C) 5-10% D) 28-32%
A) pH B) Dissolved oxygen C) Water clarity D) Temperature
A) 9.0-10.0 B) 6.5-8.5 C) 2.0-3.0 D) 4.0-5.0
A) Tuberculosis B) Ichthyophthirius C) Saprolignia D) Columnaris
A) Ignoring water parameters B) Water quality management C) Overfeeding D) High stocking density
A) Never B) Daily C) Weekly D) Depending on nutrient levels
A) Increase dissolved oxygen B) Reduce water temperature C) Decrease pH D) Remove algae
A) 5+ kg B) 2-3 kg C) 0.5-1 kg D) 0.1-0.2 kg
A) Hook and line B) Electrofishing C) Dynamite fishing D) Seine netting
A) Glass pond B) Earthen pond C) Plastic pond D) Concrete pond
A) Attracts predators B) Removes predators and competitors C) Increases algae growth D) Decreases water quality
A) Kill bacteria B) Reduce oxygen levels C) Increase water turbidity D) Improve gut health
A) Decreases fish growth B) Maintains water quality C) Increases disease outbreaks D) Reduces feed efficiency
A) Beneficial for growth B) Increases oxygen levels C) Reduces algae blooms D) Toxic to fish
A) 1-1.5 meters B) 3+ meters C) 2.5 meters D) 0.5 meters
A) Increase salinity B) Remove algae C) Adjust pH D) Decrease oxygen
A) Slower growth B) Lower cost C) Balanced nutrition D) Less water pollution
A) Increasing fish density B) Adding fertilizer C) Manual removal D) Decreasing water depth
A) Lower water quality B) Determine the best feed C) Increase mortality D) Reduce growth rate
A) Growth rate B) Cloud cover C) Soil type D) Air temperature
A) Once a week B) 3-4 times per day C) Only at night D) Once a day
A) Algae bloom B) Fish swimming actively C) Clear water D) Fish gasping at the surface
A) Promote algae growth B) Prevent disease introduction C) Reduce fish growth D) Increase production costs
A) Separate fish by size B) Increase disease transmission C) Promote cannibalism D) Reduce growth rate
A) Adding sugar B) Increasing water depth C) Reducing aeration D) Biological control
A) Reduced productivity B) Resource recycling C) Higher input costs D) Increased pollution |