Questions
- Define hybrid vigour as used in livestock production (1mk)
- Outline three disadvantages of artificial insemination in cattle management (3mks)
- Give any three reasons why bees swarm from a hive ( 3mks)
- Below is a diagram of a sheep with some parts labeled A, B, and C. Study the diagram and answer the questions that follow.
- What operation is usually carried out on the part labeled A during a sheep’s early stages of life? (1mk)
- Why is it necessary to carry out the operation in (i) above? (2mks)
- At what stage of sheep should the operation in (i) above be carried out? (1mk)
- Give two methods of carrying out the operation in (i) above (1mk)
- Which operation is usually carried out on part labeled B (1mk)
- Give four signs which indicate that a sow is about to farrow (4mks)
- Give three reasons for treating timber to the used in construction of farm buildings (3mks)
- State six features of an ideal calf pen (3mks)
- State four features of a good maize granary.(4mks)
- Name two notifiable diseases in cattle. (1mk)
- State two ways by which proper feeding contribute to disease control in livestock. (1mk)
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- Give two causes of blossom end rot in tomatoes (2mks)
- State two methods of controlling blossom end rot in tomatoes (2mks)
- What four aspects of rainfall should a Kenyan farmer consider while growing crops (2mks)
- One of the recommended ratio of mixing ingredients for making Concrete block is 1:3:4.
- Name ingredients represented by the numbers 1, 3 and 4 in the mixture. (3mks)
- If stronger concrete blocks were to be made, name the ingredient that would be increased. (1mk)
- State three properties of concrete that make it suitable for constructing farm buildings. (3mks)
- Describe the life cycle of a three- host tick. (8mks)
Marking Scheme
- Define hybrid vigour as used in livestock production (1mk)
- Increased performance as a result of crossing two superior unrelated breeds
- Increased performance as a result of crossing two superior unrelated breeds
- Outline three disadvantages of artificial insemination in cattle management (3mks)
- Harmful traits/ diseases can spread fast
- Requires trained personnel/ skills
- Laborious
- Low chance of conception due to poor timing/ death of sperms
- Give any three reasons why bees swarm from a hive ( 3mks)
- Bad smell
- Overheating
- Lack of food/ water
- Sick/ infertile queen
- Attack by predators/ destruction of brood
- Too much noise
- Below is a diagram of a sheep with some parts labeled A, B, and C. Study the diagram and answer the questions that follow.
- What operation is usually carried out on the part labeled A during a sheep’s early stages of life? (1mk)
- Docking/ Tailing
- Docking/ Tailing
- Why is it necessary to carry out the operation in (i) above? (2mks)
- To facilitate mating/ to ease mating in ewes
- To control blow fly infestations
- To ensure uniform distribution of fat
- At what stage of sheep should the operation in (i) above be carried out? (1mk)
- 1-2 weeks after birth
- 1-2 weeks after birth
- Give two methods of carrying out the operation in (i) above (1mk)
- Use of elastrator and rubber ring
- Use of sharp knife
- Use of a docking iron
- Which operation is usually carried out on part labeled B (1mk)
- Hoof trimming
- Hoof trimming
- What operation is usually carried out on the part labeled A during a sheep’s early stages of life? (1mk)
- Give four signs which indicate that a sow is about to farrow (4mks)
- Restlessness
- Loss of appetite
- Udder/ teats enlarge
- Present of milk in the teats 24hrs before farrowing
- Vulva enlarges
- Muscle on either side of the tail/ pelvic bones slackens
- Sow prepares a nest
- Give three reasons for treating timber to the used in construction of farm buildings (3mks)
- To prevent warping/ bending / twisting
- To prevent rotting/ damage by fungi
- To prevent it from pest attack
- To enable timber to achieve it maximum strength
- State six features of an ideal calf pen (3mks)
- Well ventilated
- Easy to clean
- Leak proof
- Well drained floor
- Draught free
- Spacious
- Well lit
- State four features of a good maize granary.(4mks)
- Should be raised from the ground
- Should be leak proof
- Should be easy to clean
- Should be well ventilated
- Should be rat proof/ vermin proof
- Should be easy to toad/ offload
- Strong enough, spacious
- Name two notifiable diseases in cattle. (1mk)
- Foot and mouth diseases
- Anthrax
- Rinderpest
- Lumpy skin disease
- Rabies
- State two ways by which proper feeding contribute to disease control in livestock. (1mk)
- Prevent deficiency disease
- Improves animals and ability to resist diseases
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- Give two causes of blossom end rot in tomatoes ( 2mks)
- Irregular watering of the crop/ water stress
- Excess application of Nitrogen in early stages
- Deficiency of element calcium in young fruits
- State two methods of controlling blossom end rot in tomatoes (2mks)
- Regular watering
- Addition of calcium into the soil
- Mulching
- Avoid excess Nitrogen in the soil
- Give two causes of blossom end rot in tomatoes ( 2mks)
- What four aspects of rainfall should a Kenyan farmer consider while growing crops (2mks)
- Rainfall amount
- Rainfall reliability
- Rainfall distribution
- Rainfall intensity
- One of the recommended ratio of mixing ingredients for making Concrete block is 1:3:4,
- Name ingredients represented by the numbers 1, 3 and 4 in the mixture. (3mks)
- 1 cement, 3 and, 4 ballast/ gravel
- 1 cement, 3 and, 4 ballast/ gravel
- If stronger concrete blocks were to be made, name the ingredient that would be increased. (1mk)
- 1/ cement
- 1/ cement
- State three properties of concrete that make it suitable for constructing farm buildings. (3mks)
- It is durable
- It is fire proof
- It is easy to clean
- Can be molded into various shapes
- Name ingredients represented by the numbers 1, 3 and 4 in the mixture. (3mks)
- Describe the life cycle of a three- host tick. (8mks)
- Larvae climbs on 1st host via vegetation
- Larva feed blood on 1st host
- Larva drop on the ground and moults into a nymph
- Nymph climbs – onto 2nd host via vegetation
- Nymph feeds on 2nd host
- Nymph drops on the ground and moults into an adult
- Adult climb on 3rd host
- Adults feeds and mate on 3rd host
- Mated, engorged female drops and lay eggs on the ground
- Egg hatches into larvae
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