waecE-LEARNING
Animal Husbandry Paper 3, May/June 2014  
Questions: 1 2 3 4   Main
General Comments
Weakness/Remedies
Strength





































Question 4

Question 4
            (a) Identify specimens Q and R.   [2 marks]
            (b)   Mention one mode of transmission each for specimens Q and R to animals. [2 marks]
            (c)  State five effects of specimen Q on rabbits.   [5 marks]
           (d)  Which part of the body of an animal can each of specimens Q and R be found?   [2 marks]
            (e)  State four ways in which specimen R is of economic importance to livestock production.    [4 marks]

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OBSERVATION

This question was poorly attempted by the candidates.  In 4(a), majority of the candidates were able to identify specimens Q(Roundworm) and R(Tick).  But in 4(b-c), most of the candidates could neither mention a mode of  transmission for specimens Q(Roundworm) and R(Tick) to animals nor state the effects of specimen Q(Roundworm) on rabbits.  Finally, although, majority of the candidates were able to name the part of the body of an animal from which             specimens Q(Roundworm) and R(Tick) could be found, most of them could not
state the ways in which specimen R(Tick) is of economic importance to livestock   production as required in 4(d) and (e) respectively.

The expected answers include:

   4 (b)              Modes of transmission for Specimens Q (Roundworm) and
R (Tick) to animals
Specimen Q (Roundworm)    

  •    Eggs are picked up by animals during feeding/grazing on  pasture
  •    Drinking of water contaminated with the eggs of the parasite
  •    Prenatal infection(migration of larvae from the placenta to the foetus)
  •    Through contaminated milk

                                
Specimen R (Tick)

  •    Direct body contact between infested  and non-infested animals
  •    Grooming tools/equipment contaminated with the eggs of tick
  •    Through infected paddock/pen

                                              
              (c)      Effects of Specimen Q (Roundworm) on rabbit
            -       Retarded growth/runt

  •   Constipation
  •   Emaciation/loss of weight/Unthriftiness/poor body condition
  •   Anaemia
  •   Weakness
  •   Bloated stomach/stomach discomfort
  •   Loss of appetite/anorexia
  •   Diarrhoea/stooling
  •   Restlessness
  •   Damage of body tissues
  •   Vomiting with visible worms/vomiting
  •   Death in cases of serious infestation

             (e)          Ways in which Specimen R (Tick) is of economic importance
-           Loss of farmer’s income due to death of animal/low productivity
-           Increases cost of production
-           Reduces the quality of the animal products (milk, meat, hide etc)/damage
            to hide, wool or hair

  •       Carrier of diseases-causing organisms /vectors/transmission of diseases  such as babesiosis, theileriosis, heartwater 
  •  Reduces the quantity of animal products (slow/stunted growth, reducedmilk production.
     

 

 

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