Agricultural Science
WAEC 2017
Study specimens T (CHICKEN EGG) and U (TILIPIA FISH) and answer the following questions;
(a)i. Name three breeds of the farm animal which produces specimen T
(ii) State four ways in which specimen T is economically important
(b)(i) Mention two methods of harvesting specimen U, from the pond
(ii) List two by-products that could be obtained from the processing of specimen U
(iii) State four methods of preserving specimen U
Explanation
(a)(I). Breeds of the farm animal which produces specimen T (Chicken egg) -
- Rhode island red
- White leghorn
- Brown leghorn
- Nera black
- Cornish
- Sussex
- Cochin
- New Hampshire
- Plymouth rock
- Black leghorn
(ii) Ways in which specimen T (Chicken egg) is economically important ;
- Eaten as food by humans
- Egg shell is a source of Calcium in farm animal feeds Source of income to farmers and traders
- Used in making confectioneries/ baking
- Used as raw material in pharmaceutical/cosmetic industries
- Egg production/sale is a source of employment
- Used in the production of chicks
- Used in producing vaccines
- Used in making adhesives/binding agent
b(I) Methods of harvesting specimen U (Tilapia fish) from the pond -
- Hook and line
- Fishing nets e.g scoop net, gill net, seine net etc
- Fishing baskets
- Fishing traps
- Harpoon/fishing spear
- Draining of pond
(ii) By-products that could be obtained from thedbo processing of specimen U (Tilapia fish)
- fish bone
- Fishmeal
- Fish scale
- Fish oil
- Fish skin
(iii) Methods of preserving specimen U (Tilapia fish) -
- Sun drying
- Salting
- Smoking
- Canning
- Freezing/Refrigeration
- Oven-drying
- Frying
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