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