AGRICULTURE PAPER 2 - 2019 LANJET JOINT MOCK EXAMINATION

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SECTION A : 30 MARKS

  1. Name three types of specialized feeding carried out in livestock management (1½ mks)
  2. Name two methods used in ration formulation (1mk)
  3. Name the breed of sheep adapted to wet and marshy conditions of the Kenyan highlands (1mk)
  4. Give two reasons for throwing grains to poultry on the litter in a deep litter poultry house             (1mk)
  5. What are the terms used to describe the young ones of the following livestock (2mk)
    1. Rabbits
    2. Fish
    3. Goat
    4. Donkey
  6. Name the causal organisms of the following diseases in livestock (2mk)
    1. Anthrax
    2. Rift Valley fever
    3. Anaplasmosis
    4. Milk fever
  7. State four management practices carried out in sheep during preparation for tupping                                                                                                            (2mks)
  8. Name three plumbing tools in a farm (1½mks)
  9. Name two exotic breeds of dairy goats             (1mk)
  10. Name four advantages of natural methods of rearing calves (2mks)
  11. Give four disadvantages of using thatch in construction of farm buildings (2mks)
  12. State four factors that determine digestibility of a feed (2mks)
  13. Give any two measures that should be taken to control tapeworms in livestock (1mk)
  14. Give four reasons why the lubrication system is important in a tractor (2mks)
  15. Name three dual purpose sheep breeds             (1½mks)
  16. Name two groups into which vitamins are classified (1mk)
  17. State four ways in which power transmitted from the engine is made available for use   (2mks)
  18. State four cultural uses of livestock (2mks)
  19. Name three enzymes contained in the pancreatic juice (1½mks)

SECTION B : 20MARKS

  1. Study the diagram below and answer the questions that follow
    agric2 qsn20 qsns
    1. Name the practice illustrated above (1mk)
    2. Name the type of method illustrated above (1mk)
    3. Give the identification number of the pig illustrated above (1mk)
    4. Using a diagram, illustrate how animal number 85 can be identified using the above diagram      (2mks)
  1. The diagrams below show the behavior of chicks in a brooder in response to heat 
    agric2 qsns21 q tx7eC
    1. Explain the behavior of chicks in the brooder (4mks)
    2. Explain why the brooder is rounded (1mk)
  2. The diagram below shows an external parasite in livestock
    agric 2 qsn22 qs 3zGrA
    1. Identify the parasite (1mk)
    2. State two effects of the parasite in cattle (2mks)
    3. Give two control measures of the parasite (2mks)
  1. Study the following tools and equipment then answer the questions that follow:
    agric2 qs23 qsns
    1. Identify the tools labeled W, X and Y (3mks)
    2. State the function of the tool labeled W (1mk)
    3. State one maintenance practice carried out on tool Y (1mk)

SECTION C: 40MARKS

  1.  
    1. Discuss anthrax disease under the following sub headings:
      1. Animals affected (1mk)
      2. Causal organism (1mk)
      3. Symptoms observed in affected animals (4mks)
      4. Control measures (4mks)
    2.  
      1. State four problems associated with artificial methods of service in cattle production        (4mks)
      2. Give six factors that affect productivity of draught animals              (6mks)
  2.  
    1. Discuss any six sources of power on the farm (12mks
    2. Discuss the components that make up the power transmission mechanism of a tractor     (8mks
  1.  
    1. Describe any five general effects of parasites on livestock (10mks)
    2. Outline the general characteristics of beef cattle breeds                             (10mks)


MARKING SCHEME

SECTION A : 30 MARKS

  1. Name three types of specialized feeding carried out in livestock management (1½ mks)
    • Creep feeding
    • Flushing
    • Steaming up
  1. Name two methods used in ration formulation (1mk)
    • Trial and error
    • Pearson’s square method
  1. Name the breed of sheep adapted to wet and marshy conditions of the Kenyan highlands (1mk)
    • Romney Marsh/ kent
  1. Give two reasons for throwing grains to poultry on the litter in a deep litter poultry house (1mk)
    • To help them turn the litter to keep it dry
    • To keep the poultry
  1. What are the terms used to describe the young ones of the following livestock (2mk)
    1. Rabbits :      Kindling
    2. Fish :           Fingerlings
    3. Goat :          Kid
    4. Donkey :       Foal
  1. Name the causal organisms of the following diseases in livestock (2mk)
    1. Anthrax Bacteria/ Bacillus anthracis
    2. Rift Valley fever Virus
    3. Anaplasmosis Protozoan /Anaplasma marginale
    4. Milk fever Lack of calcium and phosphorus
  1. State four management practices carried out in sheep during preparation for tupping                                                                                                          (2mks)
    • Crutching/ Barling /tagging
    • Raddling
    • Hoof trimming
    • Ringing
  1. Name three plumbing tools in a farm (1½mks)
    • Stock and die
    • Pipe wrench
    • Pipe cutter
  1. Name two exotic breeds of dairy goats (1mk)
    • Toggenburg
    • Saanen
    • Jamnapari
    • Anglo nubian
  1. Name four advantages of natural methods of rearing calves (2mks)
    • Calf takes milk at body temp
    • Milk is free from contamination
    • Problems of scouring are minimised
    • Gets adequate milk for its nutritional requirements
  1. Give four disadvantages of using thatch in construction of farm buildings (2mks)
    • Harbors vermin
    • Catches fire easily
    • Requires regular maintenance
    • Rots easily
    • Can leak easily if not well placed
  1. State four factors that determine digestibility of a feed (2mks)
    • Animal species
    • Chemical composition of the feed
    • Form in which feed is given to the animal
    • Quantity of food already present in the digestive system of the animal
    • Energy to protein ratio in the feed
  1. Give any two measures that should be taken to control tapeworms in livestock (1mk)
    • Proper meat inspection
    • Proper disposal of infected carcass
    • Routine deworming of livestock
    • Rotational grazing
    • Proper disposal of humn waste
    • Proper cooking of meat
  1. Give four reasons why the lubrication system is important in a tractor (2mks)
    • Increases efficiency
    • Reduces heat
    • Acts as a cleaning agent
    • Prevents rusting of stationary machines
    • Reduces wear and tear of moving parts
  1. Name three dual purpose sheep breeds (1½mks)
    • Romney marsh
    • Hampshire down
    • Corriedale
  1. Name two groups into which vitamins are classified (1mk)
    • Water soluble
    • Fat soluble
  1. State four ways in which power transmitted from the engine is made available for use                                                                                                          (2mks)
    • Propeller shaft
    • Power take off shaft
    • Hydraulic system
    • Draw bar
  1. State four cultural uses of livestock (2mks)
    • Status symbol
    • Medium of exchange
    • Social ceremonies
    • Recreational purposes
  1. Name three enzymes contained in the pancreatic juice (1½mks)
    • Pancreatic amylase
    • Lipase
    • Trypsin

SECTION B : 20MARKS

  1. Study the diagram below and answer the questions that follow
    1. Name the practice illustrated above (1mk)
      Identification
    2. Name the type of method illustrated above (1mk)
      Ear notching
    3. Give the identification number of the pig illustrated above (1mk)
      110
    4. Using a diagram, illustrate how animal number 85 can be identified using the above diagram                                                                                     (2mks)
  1. The diagrams below show the behavior of chicks in a brooder in response to heat
    1. Explain the behavior of chicks in the brooder (4mks)
      A: There is draught from the side directly opposite to where the chicks crowd
      B: Too much heat in the brooder making the chicks to move away
      C: Correct temperature chicks evenly spread out in the brooder
      D: Very cold, the chicks crowd around the heat source to get warmth
    2. Explain why the brooder is rounded (1mk)
      To avoid overcrowding at one point which may lead to suffocation
  1. The diagram below shows an external parasite in livestock
    1. Identify the parasite (1mk)
      Tse tse fly
    2. State two effects of the parasite in cattle (2mks)
      Transmits tryponosomiasis
      Sucks blood leading to anaemia
      Bites cause damage to skins and hide
    3. Give two control measures of the parasite (2mks)
      Bush clearing
      Spraying with suitable insecticides
      Use of flytraps
      Use sterilizing agents on males
  1. Study the following tools and equipment then answer the questions that follow:
    1. Identify the tools labeled W, X and Y (3mks)
      W – plumb bob/plumb line
      X – cross pein hammer
      Y – hypodermic needle and syringe
    2. State the function of the tool labeled W (1mk)
      checking the vertical straightness of a wall
    3. State one maintenance practice carried out on tool Y (1mk)
      Cleaning and sterilizing
      Proper storage

SECTION C : 40MARKS

  1.  
    1. Discuss anthrax disease under the following sub headings:
      1. Animals affected -cattle, sheep, goats, pigs, camels, donkeys (2 x ½)
      2. Causal organism- bacillus anthracis/ bacteria (x 1)
      3. Symptoms observed in affected animals
        • Lack of blood clotting
        • Extensive bloating
        • Blood stained diarrhea and milk
        • High and sudden fever
        • Sudden death
        • Carcass lacks rigor mortis
        • Production of tar like blood from oral openings
      4. Control measures
        • Vaccinate with blanthrax
        • Proper disposal of carcass
        • Avoid contact with the carcass
        • Disinfect the area of death and burial (1 x4)
    2.  
      1. State four problems associated with artificial methods of service in cattle                                         production                                                                              
        • Expensive
        • Requires highly trained manpower
        • Requires special storage facilities
        • Laborious
        • May not be accurate
        • Bad traits spread very fast (1 x4)                               
      2. Give six factors that affect productivity of draught animals             
        • Weather conditions
        • Health status of the animal
        • Level of training
        • Proper harnessing
        • Proper feeding
        • Proper loading
        • Physiological conditions of the animal e.g. pregnancy
        • Proper maintenance of the implement
        • Level of fatigue
           (1 x6)
  1.  
    1. Discuss any six sources of power on the farm (12mks)
      • Human power: limited to very light tasks with quality of work produced being low
      • Animal power: employs use of animals, e.g. donkeys, to provide power for cultivation and transportation
      • Wind power: provides power for light jobs on the farm. It is limited by unrealibity in direction, strength and availability
      • Solar radiation: is the radiant energy from the sun and it can be used in different ways
      • Biomass: employs the use of biogas, wood or charcoal
      • Electrical power: obtained from geothermal, water, nuclear or storage battery. Is used for different tasks on the farm.
      • Fossil fuel: employs use of petroleum, coal or natural gasses.
        (6x2)
    2. Discuss the components that make up the power transmission mechanism of a tractor  
      • Propeller shaft: connects gear box to the differential
      • Power take off shaft: transports power to other implements connected to it, e.g. mowers
      • Hydraulic system: raises or lowers the mounted implements
      • Draw bar: helps in attaching trailed implements e.g. harrows                                                                                                  
  1.  
    1. Describe any five general effects of parasites on livestock
      • Sucking blood: some parasites suck blood from their hosts leading to anaemic conditions and death.
      • Eating food intended for livestock: this can lead to malnutrition and weakness in the host.
      • Causes obstruction: internal parasites block the alimentary canal which can lead to death
      • Transmission of disease: can cause death or lower production in livestock
      • Irritation to animals: some parasites make animals uncomfortable
      • Damage to internal tissues and organs preventing proper functioning of the organs                                                                                               
    2. Outline the general characteristics of beef cattle breeds                            
      • Block in shape
      • Deep, well fleshed body
      • Grow fast leading to early maturity
      • Efficient in food conversion
      • Maintain good weight even during drought
      • Good foragers
      • More tolerant to high temperature
      • Breed regularly
      • More resistant to diseases
      • Have short, strong legs                                                                                                        
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