A) All of the mentioned B) Temperature and nutrients C) Dissolved oxygen and nutrients D) Temperature and dissolved oxygen
A) Overcrowding in fish ponds leads to predation and death B) All fish populations acclimatize to high salinity C) Turbidity has no effect on fish population D) High pH enables fish to grow faster
A) Poor water quality B) Inadequate feeding rate C) Availability of live food D) Poor feeding frequency
A) Construction of monk B) Impounding of water C) Repairing of leakages D) Construction of spill way
A) Prevent blockage of outflow pipe B) Allow good flow of water C) Pollution of water D) Allow entry of fresh water
A) Preservation B) Conservation C) Fertilization D) Acclimatization
A) Broodstock B) Brood selection C) Brood pair D) Brood breeder
A) Viviparous fish B) Angel sharks C) Mammals D) Ovoviviparous fish
A) Natural reproduction B) External fertilization C) Internal fertilization D) Artificial reproduction
A) Into the peritoneal cavity B) At the back muscle just below the lateral line C) At the tail D) In the pituitary gland
A) Whitish B) Yellowish C) Brownish D) Greenish
A) Five B) Six C) One D) Two
A) Sperm collation B) Fertilization C) Artificial breeding D) Ovulation
A) Hormone Chorionic Gonadotropin B) Hormone Chloro Gonadotrophin C) Human Chorionic Gonadotropin D) Hormonal Condition Gland
A) Sperm B) Testes C) Milt D) Semen
A) Pathogens B) Water pollution C) Quarantine new fish D) Infected species
A) Dropsy B) Fin rot C) Malawi bloat D) Cotton wool diseases
A) Maintaining good water quality B) Decontamination of the pond C) Emaciation and hollow belly D) Quarantine
A) Ovoviviparous fishes B) Viviparous fishes C) Surf perches D) Lemon sharks
A) Fingerlings B) Hatchling C) Fry D) Fish seed |