Agriculture Paper 2 Questions and Answers - ACK Diocese Mumias Joint Evaluation Mock 2022

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Instructions to candidates    
  • This paper consists of three sections A,B and C
  • Answer  All the question in section A and B
  • Answer ANY TWO questions in section C
  • Candidates should answer all the questions in English

SECTION A [30 MARKS]
Answer all the questions in this section in the spaces provided .

  1. Name two dairy breeds of goats .[2marks]
  2. Give four characteristics of clean and high quality milk .[2marks]
  3. Name two classes of livestock feedstuff .[1mark]
  4. Give three systems of out breeding .[1.5marks]
  5. Give the pathogens that cause the following livestock diseases .
    1. Anthrax  [0.5marks]…………………………………………………………………………………………..
    2. Gumboro [0.5marks]…………………………………………………………………………………………
  6. State two reasons for hoof trimming in livestock .[1mark]
  7. Give four symptoms of Newcastle disease .[2marks]
  8. State four reasons why bees swarming (2mks)
  9. Give four pre disposing factors of mastitis in dairy cows .[2marks]
  10. State four routine management practices carried out on a replacement stock that is a heifer.[2marks]
  11. Outline two control measures of roundworms. [1mark]
  12. Give two methods of selection . [1mark]
  13.  
    1. Name a pig breed that is purely black with a long back and drooping ears   [0.5mark
    2. Name four materials collected by bees . [2marks]
  14. State four mechanical methods of controlling ticks .[2marks]
  15. Give two roles of ovaries in a cows reproductive system . [1mark]
  16. State four importance of identification in livestock. [2marks]
  17. Give two roles of a bee drone . [1  mark ]
  18. State four management practices carried out in a deep litter system of poultry keeping . [2marks]
  19. Name two functions of lubrication system .[1mark]

SECTION B   [20MARKS]
Answer all the questions in this section in the spaces provided .

  1. The diagrams below represent some farm tools and equipment .Study them and answer the questions that follow .
         AgrP2q20
    1. Identify the tools labeled A and B     (2 marks)
    2. State one use of each of the tools labeled C and D      (2 marks)
    3. Explain one maintenance practice carried out on tool D . [1mk.]
  2. The diagram below represents a foundation of a farm structure .Study it and answer questions that follow .
          AgrP2q21
    1. Identify the parts labeled E and F . (2 marks)
    2. State two uses of part labeled F  in a foundation structure . [2mks.]
    3. What ingredients are used to complete part G  . [1mk.]
  3. The diagram below illustrates an internal parasite of livestock .
          AgrP2q22
    1. Identify the parasite above . [1mk.]
    2. Name two common species of the parasite illustrated above . [2mks.]
    3. Give two control measures of the above parasite . [2mks.]
  4. Study the diagram below and answer questions that follow .
          AgrP2q23
    1. Which of the above cows shows the signs of heat ? [1mk.]
    2. Give one reason to confirm your answer in [a] above .
    3. State two benefits of natural mating system . [2mks.]
    4. Name a disease that is easily spread by this method of mating . [1mk.]

SECTION C   [40MARKS]
Answer any two questions from this section in the spaces provided .

  1.  
    1. Describe six Advantages of  battery cage system of rearing poultry . [6mks.]
    2. Explain six requirement of calf pens. [6mks.]
    3. Explain 4 factors considered when siting farm structures .[4mks.]
    4. Explain 4 essentials of clean milk production (4 mkS)
  2.  
    1. Describe anthrax disease under the following sub headings .
      1. Animals  affected  . [2marks]
      2. Causal  organism . [1 mark ]
      3. Symptoms of attack . [ 5 marks]
      4. Control measures . [2 marks ]
    2. Describe the lifecycle of one host tick.[5marks]
    3. STATE five Characteristics of eggs used for incubation . [5marks]
  3.  
    1. State differences between petrol and diesel engine [5mks.]
    2. Explain five factors considered when siting a fish pond.[5mks.]
    3. Explain the predisposing factors of livestock diseases 5mks


MARKING SCHEME

SECTION A [30 MARKS]

  1.  
    • Saanen ;
    • Toggenburg ;
    • British alpine ;
    • Anglo-Nubian ;
    • Jamnapari . [2mks.]
  2.  
    • Free from disease pathogens ;
    • Free from hair , dirt ,dust ;
    • Good keeping quality ;
    • Good flavor ;
    • Free from adulteration with water ; [2mks.]
  3.  
    • Roughage ;
    • Concentrates . [1mk.]
  4.  
    • Out crossing ;
    • Cross breeding ;
    • Up grading / grading up . [ 1.5 mks]
  5.  
    1. Bacterium/Bacillus anthracis . [0.5mk.]
    2. Virus / Birna virus [0.5 mk.]
  6.  
    • Facilitate easy movement ;
    • Control foot rot disease ;
    • Prevent ram from injuring ewe during tupping . [ 1mk.]
  7.  
    • Difficulties in breathing ;
    • Beaks remain wide open with strained necks ;
    • Dullness of birds ;
    • Birds stand with eyes closed ;
    • Loss of appetite ;
    • Nasal discharge ;
    • Walking with a staggering motion ;
    • Drooping wings and beaks ;
    • Watery green diarrhea ;
    • Soft shelled eggs .
  8.  
    • The population has grown too large and the hive is too small to accommodate all the bees.
    • There's not enough room to build more honey stores.
    • The temperature is too hot. With higher temperatures, more space is needed for each bee to maintain a cooler temperature.
    • The hive does not have proper ventilation and drainage. If the bees cannot ventilate the hive properly, temperatures rise, and they will likely move out of the hive.
    • High humidity and poor ventilation make the hive unbearable for the bees.
    • Problems with the queen. Sometimes older queens have a tendency to fail to produce enough eggs in times of high honey production of the colony..[2mks.]
  9.  
    • Age ,old animals more prone ;
    • Stage of lactation ;
    • Udder attachment ;
    • Incomplete milking ;
    • Wounds on teats ;
    • Poor sanitation ;
    • Poor milking .[2mks.]
  10.  
    • Control internal and external parasites ;
    • Control diseases ;
    • Effect identification ;
    • Remove extra teats ;
    • Effect dehorning .[2marks]
  11.  
    • Avoid contaminating livestock feeds with faeces ;
    • Initiate rotational grazing to break the cycle ;
    • Improve sanitation by removal of dung ;
    • Use appropriate antihelminths ;
    • Use latrines .[1mk.]
  12.  
    • Straighten loose wires
    • Splice broken wires ;
    • Replace worn out posts;
    • Replace broken droppers and brace posts .[1mk.]
  13.  
    1.  
      • Duroc jersey [0.5mk.]
    2.  
      • Nectar;
      • Pollen ;
      • Propolis ;
      • water .[2mks.]
  14.  
    • Burning the infected pastures;
    • Altering the environment by ploughing or top dressing with lime;
    • Fencing off the pasture ;
    • Starving the ticks to death by interrupting the lifecycle ;
    • Picking and killing .[2mks.]
  15.  
    • Produce female gametes ;
    • Produce hormones that induce estrus .[1mk.]
  16.  
    • Selection for breeding.
    • Facilitates treatment of sick animals.
    • Culling of poor animals.
    • Identification for special feeding.
    • For record keeping on an animal.
    • Identification of lost/stolen animal.[2mks]
  17.  
    • Mates with the queen ;
    • Flaps the wings controlling temperature .[1mk.]
  18.  
    • Turning litter ;
    • Cleaning feed and water troughs ;
    • Egg collection twice a day ;
    • Food and water provision adlibitum ;
    • Adequate perches ;
    • Adequate laying boxes ;
    • Hang green vegetables to avoid boredom .[2mks]
  19.  
    • Connection or disconnection of the driveshaft;
    • Take off smoothly without a jerk. [1mk.]

SECTION B [20MARKS]

  1.  
    1.  
      • A….stock and die [1mk.]
      • B…..plumb bob [1mk.]
    2.  
      • C…chops forage for livestock. [1mk.]
      • D….cuts wool from a sheep’s body [1mk.]
    3. Cleaning after use;-sharpening the blades. [1mk.]
  2.  
    1.  
      • E…Hardcore [1mk.]
      • F….Damp proof material /PVC [polyvinyl chloride] [1mk.]
    2.  
      • Prevents water rising beyond the floor or wall.
      • Prevents insects beyond the floor or wall. [2mka.]
    3.  
      • sand;
      • cement [1mk.]
  3.  
    1. Tapeworm [1mk.] 
    2.  
      • Taenia solium/pig tapeworm ;
      • Taenia saginata/beef tapeworm [2mk.]
    3.  
      • Suitable antihelminths;
      • Disinfect livestock houses;
      • Rotational grazing to break lifecycle;
      • Feed troughs and water troughs kept clean;
      • Proper disposal of human faeces;
      • Meat inspection;
      • Proper meat cooking. [2mks.]
  4.  
    1. J [1Mk.] 
    2. J stands still when mounted by K .[1mk.]
    3.  
      • More accurate due to heat detection by males;
      • Less laborious;
      • Useful when heat signs cannot be detected. [2mks.]
    4.  
      • Brucellosis/contagious abortion;
      • Trichomonas spp. [1mk.]

SECTION C 40 MARKS]
Answer any TWO questions from this section in the spaces provided .

  1.  
    1.  
      • Easy to keep individual production records.
      • Controls cannibalism and egg eating.
      • No contamination of water and feed,
      • Birds are not exposed to predators, parasites and diseases.
      • Facilitates culling and handling
      • Easy to collect eggs.
      • Egg losses are reduced.
      • Many birds are kept in a given area/high stocking rate
      • Eliminates broodiness.
      • Birds still have tender meat at culling due to confinement.
      • Facilitates mechanization,
      • Keeps eggs clean.
      • Sick birds can be detected easily for isolation.
      • Low labour requirement.
      • Higher egg production due to less energy spent  [6marks]
    2.  
      • Ensure its-pens should have concrete floors to facilitate cleaning
      • Make dry and warm- dry litter should be placed on the floor to avoid dampness/wetness.
      • Roof should not leak/avoid spilling water on the floor to discourage dampness and wetness of the litter
      • Adequate space: Should be spacious for exercise, feeding and watering of calves.
      • Proper lighting - should be well lit as light is necessary for synthesis of vitamin D.
      • Proper drainage - should be constructed on a well-drained place to avoid dampness
      • Draught free - to prevent entry of cold winds and discourage infections like pneumonia
      • Proper ventilation - to allow free air circulation
      • Single housing - calves should be housed singly to prevent licking one another which can lead to formation of hair - balls in
      • the rumen.[6mks]
    3.  
      • Location of the homestead
      • Accessibility
      • Security
      • Drainage
      • Direction of prevailing wind.
      • Relationship between the structures.
      • Framers tastes and preference
      • Topography
      • Proximity of amenities water and electricity.
      • Government regulations. [8marks]
      • Milking equipment should be clean
      • Clean milking parlour/shed.
      • The udder should be cleaned before milking.
      • The milkman should be clean and healthy.
      • The cows should be tested for mastitis before milking.
      • Cows with mastitis should be milked last and milk disposed of.
      • The milk should be sieved/filtered after milkin2.
      • The milk should be stored in a cool dry place/proper storage.
      • Cow should be healthy/check the cows regularly for milk-borne disease.
      • The milk should be covered after milking.
      • Feeds that can taint milk should be avoided/equipment that can taint milk should be avoided.
      • Milk should be cooled immediately to reduce bacterial multiplication
      • Chip hair around udder and flank.
  2.  
    1.  
      1. Ruminants [cattle ,sheep ,goats ] , pigs ,wild animals that are cloven hooves.[2mks.]
      2. Virus. [1mk.]
      3.  
        • Fever /high temperature;
        • staring coat;
        • Discharge from mouth and nose ;
        • Watery eyes ;
        • Diarrhea and dysentery ;
        • Mouth and nose mucous membranes are red ;
        • Emaciation in animals ;
        • Grinding teeth;
        • Death in 2-10 days after incubation. [5mks.]
      4.  
        • Vaccination every 6 months;
        • Quarantine after an outbreak;
        • Nurse animals with a disinfectant on the wounds;
        • All affected animals killed. [2mks.]
    2.  
      • Eggs hatch larvae which climb onto the host and feed on blood;
      • Engorged larvae moult, nymphs emerge, feed on blood;
      • Engorged nymphs moult, adults emerge;
      • Adults feed on blood and mate;
      • Engorged female falls to ground and lays eggs;.[5mks.]
    3.  
      • Drying of farm produce ;
      • Heating water for dairy and domestic use ;
      • Processing/distillation of clean drinking water ;
      • Generate electricity for lighting ;
      • Electricity to run milk coolants ,milking machines ,brooders ,incubators ;
      • Used for cooking with special cookers .[5mks.]
  3.  
    1.  
       Petrol engine  Diesel engine
      -It has carburetor
      -Fuel and air are mixed in the carburetor before it gets into the engine
      -Fuel is ignited by an electric spark
      -It produces little smoke because petrol is completely burnt
      -Petrol engine is light in weight and suited for light duties
      -It has an injection pump
      -The fuel and air are mixed within the cylinder
      -Fuel is ignited by compression of air and fuel mixture in the cylinder
      -It produces alot of smoke since the diesel is not completely burnt
      -It is relatively heavy in weight and suited for heavy duties
    2.  
      • Soil type.
      • Topography.
      • Sources of water.
      • Closeness to homestead/accessibility.
      • Closeness to the market centre.
      • Security
    3.  
      • Sex
      • Colour
      • Age
      • Physiological condition eg pregnancy, lactation;
      • Physical injuries 

 


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