Questions
SECTION A: (30 MARKS)
Answer ALL questions in this section in the spaces provided.
- State FOUR categories of produce stores found in a farm (2mks)
- Give TWO reasons for tooth clipping in piglets (1mk)
- State TWO uses of a rake (1mk)
- State TWO diseases that may affect bees in a colony (1mk)
- Differentiate between a heifer and a cow (1mk)
- Name FOUR species of livestock that are affected by tapeworms (2mks)
- Name FOUR viral diseases that affect poultry (2mks)
- State FOUR disadvantages of natural incubation in poultry production (2mks)
- Name TWO causes of bad flavors in milk production (1mk)
- Give TWO causes of death in cows during or after parturition (1mk)
- Differentiate between roughages and concentrates as used in livestock nutrition (1mk)
- List THREE zoonotic diseases that can occur on the farm (1½ mks)
- State FOUR uses of harrows on the farm (2mks)
- State FOUR signs of heat in pigs (2mks)
- Name FOUR plant species that can be used to establish live fences (2mks)
- Give TWO benefits of scattering grains in a deep litter poultry house (1mk)
- List THREE types of lubrication systems in farm machines (1½ mks)
- List THREE sheep breeds reared for meat production in Kenya (1½ mks)
- List THREE farm tools used during castration of farm animals (1½ mks)
- Give FOUR disorders associated with calcium deficiency in livestock (2mks)
SECTION B: (20 MARKS)
Answer all the questions in this section in the spaces provided.
- The diagram below represents conditions of the tyre.
- Which diagram represents the correct pressure in a tractor tyre? (1 mark)
- Identify the mistakes with the other two tyres. (2 marks)
- Give the correct measures taken for each tyre mentioned in (b) above.(2 marks)
- Study the diagram below of a farm structure.
- Identify the structure above. (1 mark)
- Name the parts labeled A, B, E & D.(4 marks)A
- Study the tools below and answer the questions below.
- Identify the tools W, X & Z.(3 marks)
- What are the functions of tools Z & X? (2 marks)
- Study the diagram below then answer the questions that follow.
- Name one farm animal which has the above digestive system.(1 mark)
- Label the following parts A & B.(2 marks)
- Give the functions of each of the parts labelled C and D :( 2 marks)
SECTION C
Answer any two questions in this section in the spaces provided
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- Give the differences between a petrol and a diesel engine (10mks)
- Describe the daily maintenance of a tractor (10mks)
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- What are disease predisposing factors? (2mks)
- State five disease predisposing factors in livestock (5mks)
- State five predisposing factors of mastitis in dairy cattle (5mks)
- Explain any four general methods of disease control in livestock (8mks)
- Discuss the management of layers from day old up to point of laying in a deep litter system. (20mks)
Marking Scheme
- Categories of produce store
- Traditional granaries
- Modern stores
- Silos
- Cyprus bins (4 x ½) = 2mks
- Reasons for tooth clipping
- To prevent injury incase piglets fight
- To avoid injury to mothers teats during suckling
- To facilitate proper feeding of the piglets (Any 2 x ½) = 1mk
- Uses of a rake
- Levelling the ground during land preparation
- Removing weed/trash from cultivated area 2 x ½ = 1 mk
- Diseases of bees
- Acarive
- American foul brood 2 x ½ = 1 mk
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- Heifer – A young female cattle between weaning and first calving
- Cow – A mature female cattle (Mark as a whole) 1mk
- Species of livestock affected by tapeworms
- Pigs
- Goats
- Cattle
- Sheep
- Donkeys (Any 4 x ½) = 2mks
- Viral diseases that affect poultry
- New castle
- Marek’s disease (fowl paralysis)
- Gumboro
- Avian flu
- Fowl pox Any 4 x ½ = 2mks
- Disadvantages of natural incubation
- Few chicks hatched at one time
- Farmer can’t plan when to incubate
- Diseases and parasites can be easily transmitted to the chicks from hen
- Hens can only be used when broody
- Death of the bird will collapse the process (Any 4 x ½ ) 2mks
- Causes of bad flavours in milk production
- Feedstuffs with strong smells prior to milking e.g. onions, pineapple fruit waste, Mexican marigold. Rej: feedstuffs alone
- Oxidation from exposure to sun or containers with traces of iron or copper 2 x ½ = 2 mks
- Causes of death in cow during or after parturition
- Malpresentation of calf (Acc breech presentation)
- Excessive bleeding after birth
- Milk fever in high yielding animals Any 2 x ½ = 1 mk
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- Roughages – It is a feedstuff with high fibre and carbohydrate content and low in protein
- Concentrate – It is a feedstuff with high amount of proteins or energy (carbodydrates) but low in crude fibre Mark as a whole = 1mk
- Zoonotic diseases
- Anthrax
- Brucellosis (contagious abortion/bang’s diseases
- Tuberculosis
- Rabbies (Any 3 x ½ = 1 ½ mks
- Uses of harrows
- Levelling seedbed
- Breaking soil clods
- Stirring the soil
- Destroying weeds
- Burying trash (Any 4 x ½ = 2 mks
- Signs of heat in pigs
- Restlessness
- Frequent urination
- Swelling and reddening of vulva
- Clear or slimy mucus discharge from vulva
- Respond positively to rider’s test
- Frequent mounting others (Any 4 x ½ mk) = 3mks
- Plant species used to establish live fence
- Tick berry (lantana Gamara)
- Kei apple
- Crotons
- Gacti
- Sisal
- Euphobia
- Bougainvillea
- Mauritius thorn
- Cypress Any 3 x ½ = 2 mks
- Benefits of scattering grains in deep litter house
- Provides supplementary feed to the bird
- Birds help to turn the litter as they scratch for the grain
- Keeps bird busy when scratching thus preventing vices (Any 2 x ½) 1mk
- Types of lubrication system
- Splash feed
- Force feed
- Oil mist 3 x ½ = 1 ½ mk
- Sheep breeds reared for meat
- Dorper
- Black head Persian
- Red Maasai sheep 3 x ½ = 1 ½ mks
- Tools used during castration
- Burdizzo
- Elastrator and rubber ring Rej: elastrator alone
- Scapel 3 x ½ = 1 ½ mk
- Disorders associated with calcium deficiency in animals
- Milk fever
- Soft shelled eggs
- Egg without shells (shell-less eggs)
- Osteomalacia/osteoporosis
- Rickets Any 4 x ½ (2mks)
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- E 1mk
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- F - High pressure / excess pressure 1mk
- G - Low pressure / less pressure. 1mk
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- F - Deflate to correct. 1mk
- G - Inflate to correct. 1mk
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- roof of a house. 1mk
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- A - Rafter.
- B - Tie.
- C - Strut.
- D - Wall plate.
- E - Rafter bracket. 1 × 4 = 4mks
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- W - Cold chisel.
- X - Spirit level.
- Z - Masons square. 1 × 3 = 3mks
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- Z - Checks right angles during construction. 1mk
- X - Checks whether a surface is vertical or horizontal. 1mk
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- Rabbit.
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- A - Oesophagus.
- B - Pancreas. 1 × 2 = 2mks
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- C - Produces intestinal juice / digestive juices / absorption of digested food.
- D - Digestion of cellulose
- Absorbs carbohydrates. 1 × 2 = 2mks
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Petrol Engine Diesel Engine Uses petrol as fuel Uses diesel as fuel Spark plug ignition Uses compression ignition Has a carburetor Has no carburetor Has plugs for ignition Has no plugs Compression ratio is lower 8:1 Compression rate ratio is higher 16 :1 Power from air –fuel mixture
LighterPower from diesel
HeavierPetrol engines produce les noise Produce more noise Produces less smoke Produce more smoke Needs more frequent maintenance Needs less frequent maintenance - Daily maintenance of a tractor
- Engine oil
- Check the level with a dip stick and add if low
- Battery
- Check the level of electrolyte and distilled water to cover the plates
- Fuel
- Check and add if low
- Greasing
- Is done using the nipples on all greasing points
- Fan belt
- Tighten if loose
- Radiator
- Add water if level of water is low and remove vegetation
- Air cleanses
- Blow off any excessive dust
- Oil baths (air cleaner)
- Change oil if dirty
- Nuts, Bolts ,pins
- Tighten these if loose
- Sediment bowl
- Clean if clogged 10 x 1 = 10 mks
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- Disease predisposing factors
- Are conditions inside or outside the body of an animal which lead to the animal which contracting a disease or injury 1x2 = 2mks
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- Age of the animal ; species of the animal
- Sex of the animal ; Bred of the animal
- Colour of the animal
- Change of climate / environment
- Heredity
- Environment
- Overcrowding
- Physical conditions as fatigue , weakness and pregnancy
- Animal movement / Animal coming in contact wit animals
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- Age
- Stage of lactation
- Udder attachment / pendulous udder
- Incomplete milking
- Medicinal injuries
- Poor sanitation
- Poor milking technique
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- Proper feeding and nutrition : To prevent deficiency diseases and impart diseases resistance
- Proper breeding and selection : Healthy animals should be selected for breeding
- Proper housing : House should be well
- ventilated , leak proof, well lit , easy to clean ,spacious, free from draught , and well drained
- Isolation / separation of sick animals
- Animals showing disease symptoms should be isolated /separated from the rest of the hard to avoid further spread
- Imposition of quarantine : in the event of an outbreak of notifiable disease , movement of animals and their products should be restricted to prevent spread of diseases
- Prophylactic measures / Treatment : Prophylactic measures such as administering prophylactic drugs , help to control diseases
- Treatment : should be carried out to prevent disease attack and spread
- Vaccination : Regular vaccination gives am animal immunity against certain diseases
- Mass slaughter : Animals affected by highly infections and contagious diseases should be slaughtered to prevent further spread of the disease
- Use of antiseptics and disinfectants : Antiseptics can be use on open wounds e.g terramycin sprays , disinfectants contain germicidal chemicals help to control of are disease as scours in calves,fowl typhoid, coccidiusis etc.
- Control of vectors: Disease carrying agents like tsetse flies and ticks are controlled by use of appropriate insecticides.
- Use of healthy breeding stock / Artificial insemination
- breeding stock : Artificial insemination help to prevent the spread of certain diseases e.g. Brucellosis
- De-worming : Internal parasites be controlled by drenching of farm animals to help control parasites as tapeworms ,round worms ,liver flukes etc
- Rearing diseases resistant breeds : some livestock breeds are more tolerant to diseases than others eg zebra cattle are tolerant to East Coast fever
- Trimming of hooves to minimize occurrence of foot not disease ;Ensure no sharp objects like cut wire I pasture like bloat.
Any first 4 x2 8mks
- Disease predisposing factors
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- Construct a broader of suitable dimensions
- Avoid corners in the house/broader
- Provide litter and cover it with old newspapers
- Provide enough heat sources to warm the chicks
- Protect heat sources to avoid accidents
- Provide waterers and feeders well distributed
- Ensure waterers and feeders are clean
- Cull sick chicks
- Vaccinate the chicks
- Debeak habitual cannibals
- Feed on layers marsh from week 16
- Supply grit to supplement digestion
- Provide parches for exercise
- Supply vegetables adequately
- Maintain the litter dry and free from dust
- Introduce growers marsh from week 6 – 8
- Check for pests / parasites and apply appropriate control measures
- Keep up to date records
- Check birds for disease symptoms and treat them immediately
- Provide enough calcium giving oyster shells
- Maintain and repair the house as need arises.
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