Which of the following are the cheapest methods of preserving fish?
- A. salting and sun drying
- B. freezing and chilling
- C. salting and canning
- D. smoking and canning
The types of ponds in a fresh water fish should include the following except
- A. nursery pond
- B. breeding pond
- C. production pond
- D. storage pond
Which of the following materials is not allowed in the harvesting of fish?
- A. nets
- B. baskets
- C. traps
- D. chemicals
Detailed survey for the site of a fish pond is necessary for the following except
- A. location and depth of the spillway
- B. determination of the depth of the pond
- C. site inspection
- D. height of the dam
The deficiency symptom peculiar to vitamin B in livestock is
- A. night blindness
- B. sterility
- C. loss of appetite and weight
- D. delay in blood clotting
A disease that causes abortion in cattle at the later stage of pregnancy is
- A. milk fever
- B. pneumonia
- C. brucallosis
- D. foot and mouth disease
Which of the following parasites of livestock is an hermaphrodite?
- A. tse-tse fly
- B. flea
- C. tick
- D. liverfluke
The intermediate host of liverfluke is
- A. fish
- B. snail
- C. tick
- D. man
Which of the following is not an objective of pasture management? To obtain
- A. the lowest possible dry matter yield of pasture
- B. the most palatable mixture of pasture crops
- C. high leaf-stem ratio
- D. the best possible nutritive value of pasture
Methods of rangeland improvement which ensure continuous herbage growth during the dry season are
- A. re-seeding and pest control
- B. controlled stocking and disease control
- C. rotational grazing and weed control
- D. fertilizer application and irrigation
Maintenance of osmotic balance in body cells of animals is regulated by
- A. calcium and phosphorus
- B. magnesium and calcium
- C. sodium and potassium
- D. iron and phosphorus
Parturition in the doe (rabbit) is referred to as
- A. kidding
- B. kindling
- C. garrowing
- D. lambing
During the process of egg formation, albumen deposition begins in the
- A. ovary
- B. magnum
- C. isthmus
- D. uterus
The secretion of reproductive and growth hormone in animals is controlled by the
- A. prostate gland
- B. pituitary gland
- C. adrenal gland
- D. ovary
The hormone responsible for milk let-down in cows is
- A. oxytocin
- B. adrenaline
- C. oestrogen
- D. progesterone
Progesterone is secreted by the
- A. corpus luteum
- B. seminal vesicle
- C. cowper's gland
- D. testes
The mosaic appearance on cassava leaves is caused by
- A. pests
- B. bacteria
- C. virus
- D. nematode
Smut diseases are often found on
- A. maize
- B. cassava
- C. cowpea
- D. grapes
Which of the following is not a viral disease of crops?
- A. cocoa swollen shoot
- B. tobacco mosic
- C. tomato leaf curl
- D. banana blight
Disease causing organisms are referred to as
- A. vectors
- B. pathogens
- C. pests
- D. insects
Which of the following groups of organisms cause the greatest damage to stored grains?
- A. insects
- B. birds
- C. viruses
- D. fungi