Question 2
(a) Mention four activities which should be carried out on the farm before the arrival of specimen D. [4 marks]
(b) State two observable reactions of specimen D when the temperature provided by specimen F in a poultry house is:
- high;
- low;
- moderate. [6 marks]
(c) State three disadvantages of using specimen E in poultry house. [3 marks]
(d) State two uses of specimen F in animal production. [2 marks]]
Observation
Candidates’ performance in Question 2 was poor and marks were below average.
(a) Many candidates mixed up pre-arrival activities of chicks with post-arrival activities
in a brooder house. They mentioned vaccination, construction of pens, adjusting
the temperature etc which are wrong answers; thus losing marks.
(b) Few candidates were familiar with the reactions of chicks to different heat regimes
supplied by electric bulb and marks were poor.
The expected answers include:
The expected answers include:
2. (a) Activities that should be carried out on the farm before the arrival of specimen D
(Day old chick)
- Clearing of bush and surrounding
- Cleaning and disinfecting of poultry house
- Washing and disinfecting of poultry equipment
- Provision of appropriate litter materials
- Provision of brooding equipment
- Provision of feed
- Provision of water
- Provision of medication/glucose
- Provision of heat few hours before arrival
- Repairing of brooder house
- Provision of light
(b) Observable reactions of specimen D (Day old chick) when the temperature in the poultry
house is
(i) High
- Move away from the heat source
- Panting
- Heat stress
- Chicks feed less
- Chicks drink more water
- Chicks spread out wings
- Death
(ii) Low
- Chicks move/cuddle together
- Chicks are less active
- Trample one another
- Mortality occurs
- Move closer to heat source
- Chirping
- Shivering
(iii) Moderate
- Evenly spread out
- They are active
- Feed normally
- Drink normally
(c) Disadvantages of using specimen E (Coal pot) in poultry house
- Produces chocking fumes which could lead to respiratory diseases
- Produces smoke
- Could result in fire outbreak
- Labour intensive
- Birds can jump into the pot causing death
- Heat cannot be easily regulated
(d) Uses of specimen F (Electric bulb)
- Provision of heat for chicks during brooding
- For illumination/lighting
- Used for candling
- To increase the day length in layers/photoperiodism