A) Dissolved oxygen B) Temperature C) Respiration D) Photosynthesis
A) Eutrophication B) Respiration C) Ration D) Decomposition
A) Fish feed B) Fertilizers C) Clay particles D) Fish waste
A) 70% B) 2ppm C) 20g/l D) 18F
A) Hydrogen ion B) Hydroxyl ion C) Carbonate ion D) Bicarbonate ion
A) Absence of photosynthesis B) Lethal increase in pH C) Need of buffering system D) Build up of carbondioxied
A) Alkalinity and hardness B) Temperature and dissolved oxygen C) Photosynthesis and respiration D) Turbidity and pH
A) Biological covers B) Sugar cane bagass C) Soya bean cake D) Rice molass
A) Detritus B) Plankton C) Benthos D) Necton
A) A water transparency of 60cm B) 20ppm hardness C) 110% saturated total ammonia D) 3mlphytoplankton/ 100l of pond water
A) Fish B) Supplementary feed C) Natural food D) Complete feed
A) 15% B) 10% C) 50% D) 30%
A) Discourage uniformity in fish size B) Improve nutrient loss by leaching C) Reduce dissolved oxygen consumption of fish D) Encourage food wastage
A) Either B) At selected pond area C) Neither D) On entire pond area
A) 1:2:1 B) 1:2:4 C) 25% D) 0.5 difference
A) 50% B) 70% C) 25% D) 4%
A) Disallowing run off into the fish pond B) High water holding capacity C) Good water drainage D) Avoiding soil erosion
A) Microbial degradation B) Absence of buffer system C) Supplementary feeding D) Adequate photosynthesis
A) Milligram per litre B) Percentage saturation C) Parts per million D) Centimetre
A) 5ppm B) 110% C) 20mg/l D) 60cm
A) Plastic pond B) Recirculatory pond C) Earthen pond D) Concrete pond
A) Earthen point B) Plastic pond C) Recirculatory pond D) Concrete pond
A) The types of lives present in it B) The number of lives it can support C) The interaction of lives with the non living environment D) The nutrient content
A) Compost B) Fish feed C) Ration D) Forage
A) The are formulated/prepared B) They can be initiated through decomposition C) They are life and dead foods D) Examples are larvae and water lettus
A) Benthos B) Plankton C) Detritus D) Necton
A) The behaviour and the number B) The type and the amount C) The nutrient and the size D) The species and the habitat
A) Rumen content B) Fish meal C) Groundnut cake D) Wheat middling
A) Wastage B) Sinking ability C) Floating ability D) Disatisfaction
A) Feeding fish with certain mass of its body weight B) Feeding fish with certain mass for a period of time C) Feeding fish to compensate for over stocking D) Feeding fish with certain mass to achieve a known body weight |