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