Question 4
(a) (i) Mention two forms in which specimen J could be preserved.
(ii) State three qualities of each of the preserved forms of specimen J mentioned in 4(a)(i). (8 marks)
(b) State three advantages of growing specimens J and K together on a pasture. (3 marks)
(c) List four management practices that could be adopted to improve a pasture on which specimens J and K are grown. (4 marks)
Observation
This question was well attempted by candidates although many of them were unable to draw the head of a cock as well as label its parts. Only few candidates understood the functions of the comb and wattle in poultry.
The expected answers include:
4. (a) Drawing and labelling of specimen K (Head of cock)
Parts to label
- Eye - Earlobe
- Feathers - Comb
- Ear - Nostril
- Beak - Wattle
(b) Functions of labelled parts of specimen K (Head of cock)
Beak - picking feed/drinking/scratching/defence/turning egg in incubation
Eye - for vision/sight
Nostril- for smelling
Ear - for hearing
Wattle - courtship / temperature regulation
Comb - courtship/sex appeal/temperature regulation
Ear lobe - balancing and warming the ear
Feathers - insulation/protection
(c) Management practices that could be carried out on specimen K (Head of cock) using specimen L (Pair of scissors)
- Debeaking - Decombing
- Dewattling/dubbing
(d) Tools which could be used in place of specimen L (Pair of scissors) to carry out the management practices on specimen K (Head of cock)
- Sharp knife - Scalpel
- Sharp blade - Beak trimmer/debeaker