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Agricultural Science Paper 2, Nov/Dec 2010  
Questions: 1 2 3 4 5 6 7 8 9 10 Main
General Comments
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Question 7

(a) What is fish farming? [2 marks]

(b) Define the following terms as used in fish farming:
         (i)        stocking rate; [1 mark]
         (ii)      fingerlings; [1 mark]
         (iii)      polyculture; [1 mark]
         (iv)      fishing gears [1 mark]

(c) List four factors that influence the water requirements of farm animals. [ 4 marks]

(d) Discuss foot-and-mouth disease under the following headings:
       (i) causal agent;
       (ii) symptoms;
      (iii) control.                                                                                [ 6 marks]




_____________________________________________________________________________________________________
OBSERVATION

This question was not well answered by most of the candidates who attempted it and their performance was below average. In question 7(a), most of the candidates could define fish farming. However, in question 7(b)(i-iv), many candidates were unable to define terms such as stocking rate, fingerlings, polyculture and fishing gears as used in fish farming.

Further to this, most of the candidates could not list the factors that influence the water requirements of farm animals.

In question 7(d), most of the candidates could discuss the foot-and-mouth disease under the following headings: causal agent, symptoms and control.

The expected answers include:

Definition of terms as used in fish farming
Stocking rate: This is the total of a particular species of fish that a fish pond can accommodate at a time

Fingerlings: These are young fish(es).

Polyculture: This is a system whereby more than one species of fish is stocked in a pond at the same time.

Fishing gears: These are equipment used for harvesting fish.

Factors that influence the water requirements of farm animals
- Age of animal
- Temperature
- Relative humidity
- Type of feed eaten
- Quantity of feed eaten
- State of production of the animal
- Breed of animal
- The temperature of drinking
- State of health of the animal

 

 

 

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